Report Analysis

Generated at 2020-10-14T00:05:31+0000 for charles.hoffman@me.com. This page will remain online for about 48 hours.

Report

Submitted: http://www.sec.gov/Archives/edgar/data/868675/000110465918007662/tu-20171231.xml
For more information: http://logicalcontracts.com/xbrl-and-sbrm-reporting/
DISCLAIMER: this analysis is provided by software still under development, and likely incomplete or even erroneous; do NOT use it other than for experimental, inconsequential purposes

User Alterations

NONE

	TERMS
00090 - Document - Document and Entity Information	Structures	Facts
00100 - Statement - Consolidated statements of income and other comprehensive income	Structures	Facts
00200 - Statement - Consolidated statements of financial position	Structures	Facts
00300 - Statement - Consolidated statements of changes in owners' equity	Structures	Facts
00400 - Statement - Consolidated statements of cash flows	Structures	Facts
10001 - Disclosure - notes to consolidated financial statements	Structures	Facts
10101 - Disclosure - summary of significant accounting policies	Structures	Facts
10201 - Disclosure - accounting policy developments	Structures	Facts
10301 - Disclosure - capital structure financial policies	Structures	Facts
10401 - Disclosure - financial instruments	Structures	Facts
10501 - Disclosure - segment information	Structures	Facts
10601 - Disclosure - revenue from contracts with customers	Structures	Facts
10701 - Disclosure - other operating income	Structures	Facts
10801 - Disclosure - employee benefits expense	Structures	Facts
10901 - Disclosure - financing costs	Structures	Facts
11001 - Disclosure - income taxes	Structures	Facts
11101 - Disclosure - other comprehensive income	Structures	Facts
11201 - Disclosure - per share amounts	Structures	Facts
11301 - Disclosure - dividends per share	Structures	Facts
11401 - Disclosure - share-based compensation	Structures	Facts
11501 - Disclosure - employee future benefits	Structures	Facts
11601 - Disclosure - restructuring and other costs	Structures	Facts
11701 - Disclosure - property, plant and equipment	Structures	Facts
11801 - Disclosure - intangible assets and goodwill	Structures	Facts
11901 - Disclosure - leases	Structures	Facts
12001 - Disclosure - other long-term assets	Structures	Facts
12101 - Disclosure - real estate joint ventures	Structures	Facts
12201 - Disclosure - short-term borrowings	Structures	Facts
12301 - Disclosure - accounts payable and accrued liabilities	Structures	Facts
12401 - Disclosure - advance billings and customer deposits	Structures	Facts
12501 - Disclosure - provisions	Structures	Facts
12601 - Disclosure - long-term debt	Structures	Facts
12701 - Disclosure - other long-term liabilities	Structures	Facts
12801 - Disclosure - Common Share capital	Structures	Facts
12901 - Disclosure - contingent liabilities	Structures	Facts
13001 - Disclosure - related party transactions	Structures	Facts
13101 - Disclosure - additional statement of cash flow information	Structures	Facts
20102 - Disclosure - summary of significant accounting policies (Policies)	Structures	Facts
30103 - Disclosure - summary of significant accounting policies (Tables)	Structures	Facts
30203 - Disclosure - accounting policy developments (Tables)	Structures	Facts
30303 - Disclosure - capital structure financial policies (Tables)	Structures	Facts
30403 - Disclosure - financial instruments (Tables)	Structures	Facts
30503 - Disclosure - segment information (Tables)	Structures	Facts
30603 - Disclosure - revenue from contracts with customers (Tables)	Structures	Facts
30703 - Disclosure - other operating income (Tables)	Structures	Facts
30803 - Disclosure - employee benefits expense (Tables)	Structures	Facts
30903 - Disclosure - financing costs (Tables)	Structures	Facts
31003 - Disclosure - income taxes (Tables)	Structures	Facts
31103 - Disclosure - other comprehensive income (Tables)	Structures	Facts
31203 - Disclosure - per share amounts (Tables)	Structures	Facts
31303 - Disclosure - dividends per share (Tables)	Structures	Facts
31403 - Disclosure - share-based compensation (Tables)	Structures	Facts
31503 - Disclosure - employee future benefits (Tables)	Structures	Facts
31603 - Disclosure - restructuring and other costs (Tables)	Structures	Facts
31703 - Disclosure - property, plant and equipment (Tables)	Structures	Facts
31803 - Disclosure - intangible assets and goodwill (Tables)	Structures	Facts
31903 - Disclosure - leases (Tables)	Structures	Facts
32003 - Disclosure - other long-term assets (Tables)	Structures	Facts
32103 - Disclosure - real estate joint ventures (Tables)	Structures	Facts
32303 - Disclosure - accounts payable and accrued liabilities (Tables)	Structures	Facts
32403 - Disclosure - advance billings and customer deposits (Tables)	Structures	Facts
32503 - Disclosure - provisions (Tables)	Structures	Facts
32603 - Disclosure - long-term debt (Tables)	Structures	Facts
32703 - Disclosure - other long-term liabilities (Tables)	Structures	Facts
32803 - Disclosure - Common Share capital (Tables)	Structures	Facts
33003 - Disclosure - related party transactions (Tables)	Structures	Facts
33103 - Disclosure - additional statement of cash flow information (Tables)	Structures	Facts
40101 - Disclosure - summary of significant accounting policies - Other (Details)	Structures	Facts
40102 - Disclosure - summary of significant accounting policies - Useful lives property, plant and equipment (Details)	Structures	Facts
40103 - Disclosure - summary of significant accounting policies - Useful lives intangible assets (Details)	Structures	Facts
40104 - Disclosure - summary of significant accounting policies - Inventories (Details)	Structures	Facts
40201 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statements of income and other comprehensive income (Details)	Structures	Facts
40202 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statements of financial position (Details)	Structures	Facts
40203 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statement of cash flows (Details)	Structures	Facts
40301 - Disclosure - capital structure financial policies (Details)	Structures	Facts
40401 - Disclosure - financial instruments - Credit risk (Details)	Structures	Facts
40402 - Disclosure - financial instruments - Accounts receivable (Details)	Structures	Facts
40403 - Disclosure - financial instruments - Liquidity risk (Details)	Structures	Facts
40404 - Disclosure - financial instruments - Currency risk (Details)	Structures	Facts
40406 - Disclosure - financial instruments - Market risks (Details)	Structures	Facts
40407 - Disclosure - financial instruments - Fair values (Details)	Structures	Facts
40408 - Disclosure - financial instruments - Derivatives (Details)	Structures	Facts
40409 - Disclosure - financial instruments - Derivative gains and losses (Details)	Structures	Facts
40501 - Disclosure - segment information - Operating revenue (Details)	Structures	Facts
40502 - Disclosure - segment information - Income before income taxes (Details)	Structures	Facts
40601 - Disclosure - revenue from contracts with customers (Details)	Structures	Facts
40701 - Disclosure - other operating income (Details)	Structures	Facts
40801 - Disclosure - employee benefits expense (Details)	Structures	Facts
40901 - Disclosure - financing costs (Details)	Structures	Facts
41001 - Disclosure - income taxes - Expense composition (Details)	Structures	Facts
41002 - Disclosure - income taxes - Rate reconciliations (Details)	Structures	Facts
41003 - Disclosure - income taxes - Temporary differences (Details)	Structures	Facts
41004 - Disclosure - income taxes - Other (Details)	Structures	Facts
41101 - Disclosure - other comprehensive income (Details)	Structures	Facts
41201 - Disclosure - per share amounts (Details)	Structures	Facts
41301 - Disclosure - dividends per share (Details)	Structures	Facts
41401 - Disclosure - share-based compensation - Expense (Details)	Structures	Facts
41402 - Disclosure - share-based compensation - Restricted stock units (Details)	Structures	Facts
41403 - Disclosure - share-based compensation - TELUS Corp restricted stock units activity (Details)	Structures	Facts
41404 - Disclosure - share-based compensation - TELUS Corp restricted stock units vesting year (Details)	Structures	Facts
41405 - Disclosure - share-based compensation - TELUS International (Cda) Inc. restricted stock units (Details)	Structures	Facts
41406 - Disclosure - share-based compensation - Employee share purchase plan (Details)	Structures	Facts
41407 - Disclosure - share-based compensation - General options (Details)	Structures	Facts
41408 - Disclosure - share-based compensation - TELUS Corporation share options (Details)	Structures	Facts
41409 - Disclosure - share-based compensation - TELUS International (Cda) Inc. share options (Details)	Structures	Facts
41501 - Disclosure - employee future benefits - Pension plans (Details)	Structures	Facts
41502 - Disclosure - employee future benefits - Defined contribution pension plans (Details)	Structures	Facts
41503 - Disclosure - employee future benefits - Pensions funded status (Details)	Structures	Facts
41504 - Disclosure - employee future benefits - Pensions funded status presentation in statements of financial position (Details)	Structures	Facts
41505 - Disclosure - employee future benefits - Pension plan expense (Details)	Structures	Facts
41506 - Disclosure - employee future benefits - Disaggregation of defined benefit pension (Details)	Structures	Facts
41507 - Disclosure - employee future benefits - Fair value measurements (Details)	Structures	Facts
41508 - Disclosure - employee future benefits - Future benefit payments (Details)	Structures	Facts
41509 - Disclosure - employee future benefits - Plan investment strategies and policies (Details)	Structures	Facts
41510 - Disclosure - employee future benefits - Employer contributions (Details)	Structures	Facts
41511 - Disclosure - employee future benefits - Assumptions (Details)	Structures	Facts
41512 - Disclosure - employee future benefits - Defined contribution pension plans expense (Details)	Structures	Facts
41513 - Disclosure - employee future benefits - Other defined benefit plans (Details)	Structures	Facts
41601 - Disclosure - restructuring and other costs (Details)	Structures	Facts
41701 - Disclosure - property, plant and equipment (Details)	Structures	Facts
41801 - Disclosure - intangible assets and goodwill (Details)	Structures	Facts
41802 - Disclosure - intangible assets and goodwill - Business acquisitions (Details)	Structures	Facts
41803 - Disclosure - intangible assets and goodwill - Business acquisition pro forma information (Details)	Structures	Facts
41804 - Disclosure - intangible assets and goodwill - Business acquisitions - subsequent to reporting period (Details)	Structures	Facts
41805 - Disclosure - intangible assets and goodwill - Intangible assets with indefinite lives and goodwill - spectrum licences and impairment testing (Details)	Structures	Facts
41901 - Disclosure - leases (Details)	Structures	Facts
42001 - Disclosure - other long-term assets (Details)	Structures	Facts
42101 - Disclosure - real estate joint ventures - Summarized financial information (Details)	Structures	Facts
42102 - Disclosure - real estate joint ventures - Net income (loss) and comprehensive income (loss) (Details)	Structures	Facts
42103 - Disclosure - real estate joint ventures - Investment activity (Details)	Structures	Facts
42104 - Disclosure - real estate joint ventures - Commitments and contingent liabilities (Details)	Structures	Facts
42201 - Disclosure - short-term borrowings (Details)	Structures	Facts
42301 - Disclosure - accounts payable and accrued liabilities (Details)	Structures	Facts
42401 - Disclosure - advance billings and customer deposits (Details)	Structures	Facts
42501 - Disclosure - provisions (Details)	Structures	Facts
42601 - Disclosure - long-term debt (Details)	Structures	Facts
42602 - Disclosure - long-term debt - TELUS Corporation notes (Details)	Structures	Facts
42603 - Disclosure - long-term debt - TELUS Corporation commercial paper (Details)	Structures	Facts
42604 - Disclosure - long-term debt - TELUS Corporation credit facility (Details)	Structures	Facts
42605 - Disclosure - long-term debt - TELUS Communications Inc. debentures (Details)	Structures	Facts
42606 - Disclosure - long-term debt - TELUS International (Cda) Inc. credit facility (Details)	Structures	Facts
42607 - Disclosure - long-term debt - Long-term debt maturities - (Details)	Structures	Facts
42701 - Disclosure - other long-term liabilities (Details)	Structures	Facts
42801 - Disclosure - Common Share capital (Details)	Structures	Facts
42901 - Disclosure - contingent liabilities (Details)	Structures	Facts
43001 - Disclosure - related party transactions (Details)	Structures	Facts
43101 - Disclosure - additional statement of cash flow information (Details)	Structures	Facts
43102 - Disclosure - additional statement of cash flow information - Financing activities (Details)	Structures	Facts
	RULES
	Errors and Warnings

Terms

Terms shown are only those effectively used by the report instance.

#	Label	Data Type	Period Type	Balance Type	Abstract	Prefix	Name, Documentation, References
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2	Current Fiscal Year End Date	xbrli:gMonthDayItemType	duration			dei	CurrentFiscalYearEndDate
3	Document Period End Date	xbrli:dateItemType	duration			dei	DocumentPeriodEndDate
4	Entity Current Reporting Status	dei:yesNoItemType	duration			dei	EntityCurrentReportingStatus
5	Entity Registrant Name	xbrli:normalizedStringItemType	duration			dei	EntityRegistrantName
6	Entity Central Index Key	dei:centralIndexKeyItemType	duration			dei	EntityCentralIndexKey
7	Entity Common Stock, Shares Outstanding	xbrli:sharesItemType	instant			dei	EntityCommonStockSharesOutstanding
8	Document Fiscal Year Focus	xbrli:gYearItemType	duration			dei	DocumentFiscalYearFocus
9	Document Fiscal Period Focus	dei:fiscalPeriodItemType	duration			dei	DocumentFiscalPeriodFocus
10	Document Type	dei:submissionTypeItemType	duration			dei	DocumentType
11	us-gaap:AssetUnderConstructionMember (label)	nonnum:domainItemType	duration		true	us-gaap	AssetUnderConstructionMember
12	Currency [Axis]	xbrli:stringItemType	duration		true	us-gaap	CurrencyAxis
13	us-gaap:LettersOfCreditOutstandingAmount (label)	xbrli:monetaryItemType	instant	credit		us-gaap	LettersOfCreditOutstandingAmount
14	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	xbrli:monetaryItemType	instant	credit		us-gaap	LineOfCreditFacilityMaximumBorrowingCapacity
15	Income before income taxes	xbrli:stringItemType	duration		true	us-gaap	SegmentReportingInformationProfitLossAbstract
16	Statement [Line Items]	xbrli:stringItemType	duration		true	us-gaap	StatementLineItems
17	Statement [Table]	xbrli:stringItemType	duration		true	us-gaap	StatementTable
18	Unusual or Infrequent Item, or Both [Table]	xbrli:stringItemType	duration		true	us-gaap	UnusualOrInfrequentItemTable
19	us-gaap:UnusualOrInfrequentItemLineItems (label)	xbrli:stringItemType	duration		true	us-gaap	UnusualOrInfrequentItemLineItems
20	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AccumulatedDepreciationAmortisationAndImpairmentMember
21	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AccumulatedDepreciationAndAmortisationMember
22	ifrs-full:AccumulatedImpairmentMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AccumulatedImpairmentMember
23	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	xbrli:monetaryItemType	instant	credit		ifrs-full	AccumulatedOtherComprehensiveIncome
24	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AccumulatedOtherComprehensiveIncomeMember
25	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)	xbrli:monetaryItemType	instant	credit		ifrs-full	AcquisitiondateFairValueOfTotalConsiderationTransferred
26	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract
27	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill
28	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
29	ifrs-full:ActuarialAssumptionOfDiscountRates (label)	num:percentItemType	instant			ifrs-full	ActuarialAssumptionOfDiscountRates
30	ifrs-full:ActuarialAssumptionOfDiscountRatesMember (label)	nonnum:domainItemType	duration		true	ifrs-full	ActuarialAssumptionOfDiscountRatesMember
31	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)	num:percentItemType	instant			ifrs-full	ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
32	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember (label)	nonnum:domainItemType	duration		true	ifrs-full	ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
33	Actuarial assumptions [axis]	xbrli:stringItemType	duration		true	ifrs-full	ActuarialAssumptionsAxis
34	ifrs-full:ActuarialAssumptionsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	ActuarialAssumptionsMember
35	ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
36	ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
37	ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)	xbrli:monetaryItemType	duration			ifrs-full	AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
38	ifrs-full:AdditionalPaidinCapitalMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AdditionalPaidinCapitalMember
39	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
40	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
41	ifrs-full:AdjustedWeightedAverageShares (label)	xbrli:sharesItemType	duration			ifrs-full	AdjustedWeightedAverageShares
42	ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForCurrentTaxOfPriorPeriod
43	ifrs-full:AdjustmentsForDecreaseIncreaseInInventories (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForDecreaseIncreaseInInventories
44	ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
45	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForDeferredTaxExpense
46	ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForDeferredTaxOfPriorPeriods
47	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForDepreciationAndAmortisationExpense
48	ifrs-full:AdjustmentsForProvisions (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForProvisions
49	ifrs-full:AdjustmentsForReconcileProfitLoss (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForReconcileProfitLoss
50	ifrs-full:AdjustmentsForReconcileProfitLossAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	AdjustmentsForReconcileProfitLossAbstract
51	ifrs-full:AdjustmentsForSharebasedPayments (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	AdjustmentsForSharebasedPayments
52	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AggregatedIndividuallyImmaterialBusinessCombinationsMember
53	ifrs-full:AggregatedMeasurementMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AggregatedMeasurementMember
54	ifrs-full:AggregatedTimeBandsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AggregatedTimeBandsMember
55	ifrs-full:AllLevelsOfFairValueHierarchyMember (label)	nonnum:domainItemType	duration		true	ifrs-full	AllLevelsOfFairValueHierarchyMember
56	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)	xbrli:monetaryItemType	instant	credit		ifrs-full	AllowanceAccountForCreditLossesOfFinancialAssets
57	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	xbrli:monetaryItemType	duration			ifrs-full	AmortisationIntangibleAssetsOtherThanGoodwill
58	ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract
59	ifrs-full:ApplicableTaxRate (label)	num:percentItemType	duration			ifrs-full	ApplicableTaxRate
60	ifrs-full:AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets
61	ifrs-full:Assets (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	Assets
62	ifrs-full:AssetsAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	AssetsAbstract
63	ifrs-full:AverageEffectiveTaxRate (label)	num:percentItemType	duration			ifrs-full	AverageEffectiveTaxRate
64	ifrs-full:BasicEarningsLossPerShare (label)	num:perShareItemType	duration			ifrs-full	BasicEarningsLossPerShare
65	Borrowings by name [axis]	xbrli:stringItemType	duration		true	ifrs-full	BorrowingsByNameAxis
66	ifrs-full:BorrowingsByNameMember (label)	nonnum:domainItemType	duration		true	ifrs-full	BorrowingsByNameMember
67	ifrs-full:BorrowingsInterestRate (label)	num:percentItemType	instant			ifrs-full	BorrowingsInterestRate
68	ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	credit		ifrs-full	BorrowingsRecognisedAsOfAcquisitionDate
69	ifrs-full:BottomOfRangeMember (label)	nonnum:domainItemType	duration		true	ifrs-full	BottomOfRangeMember
70	ifrs-full:BuildingsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	BuildingsMember
71	Business combinations [axis]	xbrli:stringItemType	duration		true	ifrs-full	BusinessCombinationsAxis
72	ifrs-full:BusinessCombinationsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	BusinessCombinationsMember
73	ifrs-full:CancellationOfTreasuryShares (label)	xbrli:monetaryItemType	duration	credit		ifrs-full	CancellationOfTreasuryShares
74	ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation (label)	num:percentItemType	duration			ifrs-full	CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
75	Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]	xbrli:stringItemType	duration		true	ifrs-full	CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
76	ifrs-full:CarryingAmountMember (label)	nonnum:domainItemType	duration		true	ifrs-full	CarryingAmountMember
77	ifrs-full:CashAndCashEquivalents (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	CashAndCashEquivalents
78	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets
79	ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
80	ifrs-full:CashFlowHedgesMember (label)	nonnum:domainItemType	duration		true	ifrs-full	CashFlowHedgesMember
81	ifrs-full:CashFlowsFromUsedInFinancingActivities (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	CashFlowsFromUsedInFinancingActivities
82	ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	CashFlowsFromUsedInFinancingActivitiesAbstract
83	ifrs-full:CashFlowsFromUsedInInvestingActivities (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	CashFlowsFromUsedInInvestingActivities
84	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	CashFlowsFromUsedInInvestingActivitiesAbstract
85	ifrs-full:CashFlowsFromUsedInOperatingActivities (label)	xbrli:monetaryItemType	duration			ifrs-full	CashFlowsFromUsedInOperatingActivities
86	ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	CashFlowsFromUsedInOperatingActivitiesAbstract
87	ifrs-full:CashTransferred (label)	xbrli:monetaryItemType	instant	credit		ifrs-full	CashTransferred
88	Categories of financial assets [axis]	xbrli:stringItemType	duration		true	ifrs-full	CategoriesOfFinancialAssetsAxis
89	Categories of financial liabilities [axis]	xbrli:stringItemType	duration		true	ifrs-full	CategoriesOfFinancialLiabilitiesAxis
90	Categories of related parties [axis]	xbrli:stringItemType	duration		true	ifrs-full	CategoriesOfRelatedPartiesAxis
91	ifrs-full:ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract (label)	xbrli:stringItemType	duration		true	ifrs-full	ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract
92	Classes of assets [axis]	xbrli:stringItemType	duration		true	ifrs-full	ClassesOfAssetsAxis
93	ifrs-full:ClassesOfAssetsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	ClassesOfAssetsMember
94	Classes of contingent liabilities [axis]	xbrli:stringItemType	duration		true	ifrs-full	ClassesOfContingentLiabilitiesAxis
95	employee benefits expense	xbrli:stringItemType	duration		true	ifrs-full	ClassesOfEmployeeBenefitsExpenseAbstract
96	Classes of financial assets [axis]	xbrli:stringItemType	duration		true	ifrs-full	ClassesOfFinancialAssetsAxis
97	Classes of financial instruments [axis]	xbrli:stringItemType	duration		true	ifrs-full	ClassesOfFinancialInstrumentsAxis
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239	ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory (label)	nonnum:textBlockItemType	duration			ifrs-full	DisclosureOfEntitysReportableSegmentsExplanatory
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524	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	xbrli:monetaryItemType	duration	credit		ifrs-full	OtherComprehensiveIncomeNetOfTaxCashFlowHedges
525	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)	xbrli:monetaryItemType	duration	credit		ifrs-full	OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
526	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)	xbrli:monetaryItemType	duration	credit		ifrs-full	OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
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530	ifrs-full:OtherCurrentReceivables (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	OtherCurrentReceivables
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548	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares (label)	xbrli:monetaryItemType	duration	credit		ifrs-full	PaymentsToAcquireOrRedeemEntitysShares
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554	ifrs-full:PlanAssetsMember (label)	nonnum:domainItemType	duration		true	ifrs-full	PlanAssetsMember
555	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	PostemploymentBenefitExpenseDefinedBenefitPlans
556	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	xbrli:monetaryItemType	duration	debit		ifrs-full	PostemploymentBenefitExpenseDefinedContributionPlans
557	ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	nonnum:domainItemType	duration		true	ifrs-full	PresentValueOfDefinedBenefitObligationMember
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573	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	debit		ifrs-full	PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
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1231	tu:KrollComputerSystemsIncMember (label)	nonnum:domainItemType	duration		true	tu	KrollComputerSystemsIncMember
1232	tu:VoxproLimitedMember (label)	nonnum:domainItemType	duration		true	tu	VoxproLimitedMember
1233	tu:WrittenPutOptionProvisionMember (label)	nonnum:domainItemType	duration		true	tu	WrittenPutOptionProvisionMember
1234	tu:NumberOfRetailLocationRightsAcquired (label)	xbrli:integerItemType	instant			tu	NumberOfRetailLocationRightsAcquired
1235	tu:U.s.DollarNotes3.70PercentMember (label)	nonnum:domainItemType	duration		true	tu	U.s.DollarNotes3.70PercentMember
1236	tu:SeriesCw4.70PercentNotesMember (label)	nonnum:domainItemType	duration		true	tu	SeriesCw4.70PercentNotesMember
1237	tu:VotingEquityInterestsIncludedInWrittenPutOptionProvidedToShareholdersPercentage (label)	num:percentItemType	duration			tu	VotingEquityInterestsIncludedInWrittenPutOptionProvidedToShareholdersPercentage
1238	tu:OtherCurrentAssetsRecognisedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	debit		tu	OtherCurrentAssetsRecognisedAsOfAcquisitionDate
1239	tu:IdentifiableAssetsAcquired (label)	xbrli:monetaryItemType	instant	debit		tu	IdentifiableAssetsAcquired
1240	tu:AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	credit		tu	AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate
1241	tu:CurrentProvisionsRecognizedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	credit		tu	CurrentProvisionsRecognizedAsOfAcquisitionDate
1242	tu:NonCurrentProvisionsRecognizedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	credit		tu	NonCurrentProvisionsRecognizedAsOfAcquisitionDate
1243	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate (label)	xbrli:monetaryItemType	instant	credit		tu	IdentifiableLiabilitiesAssumedAsOfAcquisitionDate
1244	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed (label)	xbrli:monetaryItemType	instant	debit		tu	GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed
1245	tu:AccountsPayableAndAccruedLiabilitiesTransferred (label)	xbrli:monetaryItemType	instant	credit		tu	AccountsPayableAndAccruedLiabilitiesTransferred
1246	tu:ProvisionsTransferred (label)	xbrli:monetaryItemType	instant	credit		tu	ProvisionsTransferred
1247	tu:ProFormaInformationAbstract (label)	xbrli:stringItemType	duration		true	tu	ProFormaInformationAbstract
1248	tu:IfrsBusinessAcquisitionProFormaEarningsPerShareBasic (label)	num:perShareItemType	duration			tu	IfrsBusinessAcquisitionProFormaEarningsPerShareBasic
1249	tu:IfrsBusinessAcquisitionProFormaEarningsPerShareDiluted (label)	num:perShareItemType	duration			tu	IfrsBusinessAcquisitionProFormaEarningsPerShareDiluted
1250	tu:XavientInformationSystemsMember (label)	nonnum:domainItemType	duration		true	tu	XavientInformationSystemsMember
1251	tu:BuildingsAndLeaseholdImprovementsMember (label)	nonnum:domainItemType	duration		true	tu	BuildingsAndLeaseholdImprovementsMember
1252	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	nonnum:domainItemType	duration		true	tu	DividendsPayableToHoldersOfCommonSharesMember
1253	tu:DividendsReinvestedInSharesFromTreasuryMember (label)	nonnum:domainItemType	duration		true	tu	DividendsReinvestedInSharesFromTreasuryMember
1254	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsShares (label)	xbrli:sharesItemType	duration			tu	IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsShares
1255	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsValue (label)	xbrli:monetaryItemType	duration	credit		tu	IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsValue
1256	tu:IssueOfEquityInBusinessCombinationShares (label)	xbrli:sharesItemType	duration			tu	IssueOfEquityInBusinessCombinationShares
1257	tu:IssueOfEquityInBusinessCombinationValue (label)	xbrli:monetaryItemType	duration	credit		tu	IssueOfEquityInBusinessCombinationValue
1258	tu:IncreaseDecreaseThroughTransfersAndOtherChangesEquityShares (label)	xbrli:sharesItemType	duration			tu	IncreaseDecreaseThroughTransfersAndOtherChangesEquityShares
1259	tu:CashPaymentsToAcquireBusinessesNet (label)	xbrli:monetaryItemType	duration	credit		tu	CashPaymentsToAcquireBusinessesNet
1260	notes to consolidated financial statements	xbrli:stringItemType	duration		true	tu	DisclosureOfNotesToConsolidatedFinancialStatementsAbstract
1261	tu:UseOfEstimatesAndJudgementsAbstract (label)	xbrli:stringItemType	duration		true	tu	UseOfEstimatesAndJudgementsAbstract
1262	tu:DirectExpensesAsPercentageOfOperatingExpensesIncludedInSegmentPerformanceMeasure (label)	num:percentItemType	duration			tu	DirectExpensesAsPercentageOfOperatingExpensesIncludedInSegmentPerformanceMeasure
1263	tu:DividendPayoutRatioAbstract (label)	xbrli:stringItemType	duration		true	tu	DividendPayoutRatioAbstract
1264	tu:DisclosureOfDividendPayoutRatioExplanatory (label)	nonnum:textBlockItemType	duration			tu	DisclosureOfDividendPayoutRatioExplanatory
1265	tu:CurrencyRiskManagementExchangeRateHedgedRange (label)	num:percentItemType	duration			tu	CurrencyRiskManagementExchangeRateHedgedRange
1266	tu:StartingInterestRateDerivativesMember (label)	nonnum:domainItemType	duration		true	tu	StartingInterestRateDerivativesMember
1267	tu:DerivativeAssetsCurrentMember (label)	nonnum:domainItemType	duration		true	tu	DerivativeAssetsCurrentMember
1268	tu:OtherLongTermAssetDerivativesMember (label)	nonnum:domainItemType	duration		true	tu	OtherLongTermAssetDerivativesMember
1269	tu:DerivativeLiabilitiesCurrentMember (label)	nonnum:domainItemType	duration		true	tu	DerivativeLiabilitiesCurrentMember
1270	tu:OtherLongTermLiabilitiesDerivativesMember (label)	nonnum:domainItemType	duration		true	tu	OtherLongTermLiabilitiesDerivativesMember
1271	tu:CommonSharesHeldInEmployeeBenefitPlanTrust (label)	xbrli:sharesItemType	duration			tu	CommonSharesHeldInEmployeeBenefitPlanTrust
1272	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested (label)	xbrli:monetaryItemType	instant			tu	WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested
1273	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	nonnum:domainItemType	duration		true	tu	DividendReinvestmentAndSharePurchasePlanMember
1274	tu:AlarmForceIndustriesIncMember (label)	nonnum:domainItemType	duration		true	tu	AlarmForceIndustriesIncMember
1275	tu:ProvisionForIncomeTaxesOfPartnersIncludedInNetIncomeAndComprehensiveIncome (label)	xbrli:monetaryItemType	instant	credit		tu	ProvisionForIncomeTaxesOfPartnersIncludedInNetIncomeAndComprehensiveIncome
1276	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	nonnum:domainItemType	duration		true	tu	TelusInternationalCdaIncRevolvingCreditFacilityMember
1277	tu:TelusInternationalCdaIncTermLoanMember (label)	nonnum:domainItemType	duration		true	tu	TelusInternationalCdaIncTermLoanMember
1278	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	nonnum:domainItemType	duration		true	tu	DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember
1279	tu:OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable (label)	xbrli:monetaryItemType	duration	credit		tu	OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable
1280	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (label)	xbrli:decimalItemType	duration			tu	NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement
1281	tu:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement (label)	xbrli:decimalItemType	duration			tu	NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement
1282	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsExercisedInPeriod (label)	xbrli:monetaryItemType	duration			tu	WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsExercisedInPeriod
1283	tu:DisclosureOfOperatingSegmentsReconciliationExplanatory (label)	nonnum:textBlockItemType	duration			tu	DisclosureOfOperatingSegmentsReconciliationExplanatory
1284	tu:DisclosureOfTradeAndOtherPayables (label)	nonnum:textBlockItemType	duration			tu	DisclosureOfTradeAndOtherPayables
1285	tu:PercentageRevenueFromMultipleElementArrangements (label)	xbrli:pureItemType	duration			tu	PercentageRevenueFromMultipleElementArrangements
1286	tu:DebtRatioAbstract (label)	xbrli:stringItemType	duration		true	tu	DebtRatioAbstract
1287	tu:NotionalAmountCurrentDerivativeLiabilities (label)	xbrli:monetaryItemType	instant	credit		tu	NotionalAmountCurrentDerivativeLiabilities
1288	tu:NotionalAmountNoncurrentDerivativeLiabilities (label)	xbrli:monetaryItemType	instant	credit		tu	NotionalAmountNoncurrentDerivativeLiabilities
1289	tu:IntersegmentRevenue (label)	xbrli:monetaryItemType	duration	credit		tu	IntersegmentRevenue
1290	tu:CapexExcludingSpectrum (label)	xbrli:monetaryItemType	duration	credit		tu	CapexExcludingSpectrum
1291	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	nonnum:domainItemType	duration		true	tu	TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember
1292	tu:TelusQuebecDefinedBenefitPensionPlanMember (label)	nonnum:domainItemType	duration		true	tu	TelusQuebecDefinedBenefitPensionPlanMember
1293	tu:AccruedAndEmployeeRelatedAndRestrictedStockUnitsLiabilities (label)	xbrli:monetaryItemType	instant	credit		tu	AccruedAndEmployeeRelatedAndRestrictedStockUnitsLiabilities
1294	tu:Mortgage3.7PercentDueSeptember2024Member (label)	nonnum:domainItemType	duration		true	tu	Mortgage3.7PercentDueSeptember2024Member
1295	tu:DeferredCustomerActivationAndConnectionFeesCurrentLiabilities (label)	xbrli:monetaryItemType	instant	credit		tu	DeferredCustomerActivationAndConnectionFeesCurrentLiabilities
1296	tu:DeferredCustomerActivationAndConnectionFeesOtherLongTermLiabilities (label)	xbrli:monetaryItemType	instant	credit		tu	DeferredCustomerActivationAndConnectionFeesOtherLongTermLiabilities
1297	tu:CashProceedsMinimumSalesRequirement (label)	xbrli:monetaryItemType	duration	debit		tu	CashProceedsMinimumSalesRequirement
1298	tu:RevolvingPeriodSecuritizationAgreementMember (label)	nonnum:domainItemType	duration		true	tu	RevolvingPeriodSecuritizationAgreementMember
1299	tu:ExpenseOfRestructuringActivitiesEmployeeBenefits (label)	xbrli:monetaryItemType	duration	debit		tu	ExpenseOfRestructuringActivitiesEmployeeBenefits
1300	tu:OtherProvisionsEmployeeBenefits (label)	xbrli:monetaryItemType	duration	debit		tu	OtherProvisionsEmployeeBenefits
1301	tu:EmployeeBenefitsIncludingRestructuring (label)	xbrli:monetaryItemType	duration	debit		tu	EmployeeBenefitsIncludingRestructuring
1302	tu:CapitalizedInternalLabourCostsAbstract (label)	xbrli:stringItemType	duration		true	tu	CapitalizedInternalLabourCostsAbstract
1303	tu:CapitalizedPropertyPlantEquipment (label)	xbrli:monetaryItemType	duration	debit		tu	CapitalizedPropertyPlantEquipment
1304	tu:CapitalizedInternalLabour (label)	xbrli:monetaryItemType	duration	debit		tu	CapitalizedInternalLabour
1305	tu:OtherDefinedBenefits (label)	xbrli:monetaryItemType	duration	debit		tu	OtherDefinedBenefits
1306	tu:AdvanceBilling (label)	xbrli:monetaryItemType	instant	credit		tu	AdvanceBilling
1307	tu:AccruedLiabilities (label)	xbrli:monetaryItemType	instant	credit		tu	AccruedLiabilities
1308	tu:RequisiteVestingServicePeriod (label)	xbrli:durationItemType	duration			tu	RequisiteVestingServicePeriod
1309	tu:NumbersOfPartiesInTransaction (label)	xbrli:integerItemType	duration			tu	NumbersOfPartiesInTransaction
1310	tu:RestrictedStockUnitNominalValueInEquityShares (label)	xbrli:sharesItemType	duration			tu	RestrictedStockUnitNominalValueInEquityShares
1311	tu:GOC2.14TenYearTermNoteMember (label)	nonnum:domainItemType	duration		true	tu	GOC2.14TenYearTermNoteMember
1312	tu:IfrsDebtInstrumentTerm (label)	xbrli:durationItemType	duration			tu	IfrsDebtInstrumentTerm
1313	tu:OtherOperatingIncomeInvestmentIncomeGainOnDisposalsOfAssetsAndOther (label)	xbrli:monetaryItemType	duration	credit		tu	OtherOperatingIncomeInvestmentIncomeGainOnDisposalsOfAssetsAndOther
1314	tu:PercentageOfBusinessCustomersAssetsAndOperationsAcquired (label)	num:percentItemType	instant			tu	PercentageOfBusinessCustomersAssetsAndOperationsAcquired
1315	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	xbrli:stringItemType	duration			tu	IfrsDerivativeInstrumentMaximumMaturityDate
1316	tu:IfrsHedgeRatioPercentage (label)	num:percentItemType	duration			tu	IfrsHedgeRatioPercentage
1317	tu:AdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination (label)	xbrli:monetaryItemType	instant	credit		tu	AdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination
1318	tu:GainLossOnAdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination (label)	xbrli:monetaryItemType	duration	credit		tu	GainLossOnAdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination
1319	tu:DerivativeExchangeRate (label)	xbrli:decimalItemType	duration			tu	DerivativeExchangeRate

Model Structures

Model Structure
Network	00090 - Document - Document and Entity Information (http://www.telus.com/role/DocumentDocumentAndEntityInformation)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Document and Entity Information	Abstract	duration	tu:DocumentAndEntityInformationAbstract
2	Entity Registrant Name	Concept (String-Normalized)	duration	dei:EntityRegistrantName
3	Entity Central Index Key	Concept (xbrli:tokenItemType)	duration	dei:EntityCentralIndexKey
4	Document Type	Concept (xbrli:stringItemType)	duration	dei:DocumentType
5	Document Period End Date	Concept (Date)	duration	dei:DocumentPeriodEndDate
6	Amendment Flag	Concept (Boolean)	duration	dei:AmendmentFlag
7	Current Fiscal Year End Date	Concept (gMonthDay)	duration	dei:CurrentFiscalYearEndDate
8	Entity Current Reporting Status	Concept (xbrli:tokenItemType)	duration	dei:EntityCurrentReportingStatus
9	Entity Common Stock, Shares Outstanding	Concept (Shares)	instant	dei:EntityCommonStockSharesOutstanding
10	Document Fiscal Year Focus	Concept (gYear)	duration	dei:DocumentFiscalYearFocus
11	Document Fiscal Period Focus	Concept (xbrli:tokenItemType)	duration	dei:DocumentFiscalPeriodFocus

Model Structure
Network	00100 - Statement - Consolidated statements of income and other comprehensive income (http://www.telus.com/role/StatementConsolidatedStatementsOfIncomeAndOtherComprehensiveIncome)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	ifrs-full:StatementOfComprehensiveIncomeAbstract (label)	Abstract	duration		ifrs-full:StatementOfComprehensiveIncomeAbstract
2	OPERATING REVENUES	Abstract	duration		tu:OperatingRevenueAbstract
3	Service	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromRenderingOfTelecommunicationServices
4	Equipment	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromSaleOfGoods
5	ifrs-full:RevenueFromContractsWithCustomers (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromContractsWithCustomers
6	ifrs-full:OtherRevenue (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherRevenue
7	ifrs-full:Revenue (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:Revenue
8	OPERATING EXPENSES	Abstract	duration		ifrs-full:ExpenseByNatureAbstract
9	Goods and services purchased	Concept (Monetary)	duration	debit	tu:GoodsAndServicesPurchased
10	ifrs-full:EmployeeBenefitsExpense (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:EmployeeBenefitsExpense
11	Depreciation	Concept (Monetary)	duration		ifrs-full:DepreciationPropertyPlantAndEquipment
12	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (terseLabel)	Concept (Monetary)	duration		ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
13	Total	Concept (Monetary)	duration	debit	ifrs-full:OperatingExpense
14	OPERATING INCOME	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossFromOperatingActivities
15	ifrs-full:FinanceCosts (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:FinanceCosts
16	INCOME BEFORE INCOME TAXES	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossBeforeTax
17	ifrs-full:IncomeTaxExpenseContinuingOperations (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxExpenseContinuingOperations
18	ifrs-full:ProfitLoss (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
19	OTHER COMPREHENSIVE INCOME	Abstract	duration		ifrs-full:OtherComprehensiveIncomeAbstract
20	Items that may subsequently be reclassified to income	Abstract	duration		ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
21	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
22	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
23	Change in unrealized fair value of available-for-sale financial assets	Concept (Monetary)	duration	credit	ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsNetOfTax
24	Total items that may be reclassified to income	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
25	Item never subsequently reclassified to income	Abstract	duration		ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
26	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
27	Total	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncome
28	COMPREHENSIVE INCOME	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncome
29	NET INCOME ATTRIBUTABLE TO:	Abstract	duration		ifrs-full:ProfitLossAttributableToAbstract
30	ifrs-full:ProfitLossAttributableToOwnersOfParent (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossAttributableToOwnersOfParent
31	Non-controlling interests	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossAttributableToNoncontrollingInterests
32	ifrs-full:ProfitLoss (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
33	ifrs-full:ComprehensiveIncomeAttributableToAbstract (terseLabel)	Abstract	duration		ifrs-full:ComprehensiveIncomeAttributableToAbstract
34	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
35	Non-controlling interests	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
36	COMPREHENSIVE INCOME	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncome
37	ifrs-full:EarningsPerShareAbstract (terseLabel)	Abstract	duration		ifrs-full:EarningsPerShareAbstract
38	Basic	Concept (Per-Share)	duration		ifrs-full:BasicEarningsLossPerShare
39	Diluted	Concept (Per-Share)	duration		ifrs-full:DilutedEarningsLossPerShare
40	TOTAL WEIGHTED AVERAGE COMMON SHARES OUTSTANDING	Abstract	duration		ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
41	ifrs-full:WeightedAverageShares (terseLabel)	Concept (Shares)	duration		ifrs-full:WeightedAverageShares
42	ifrs-full:AdjustedWeightedAverageShares (terseLabel)	Concept (Shares)	duration		ifrs-full:AdjustedWeightedAverageShares

Model Structure
Network	00200 - Statement - Consolidated statements of financial position (http://www.telus.com/role/StatementConsolidatedStatementsOfFinancialPosition)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	ifrs-full:StatementOfFinancialPositionAbstract (label)	Abstract	duration		ifrs-full:StatementOfFinancialPositionAbstract
2	ifrs-full:AssetsAbstract (terseLabel)	Abstract	duration		ifrs-full:AssetsAbstract
3	Current assets	Abstract	duration		ifrs-full:CurrentAssetsAbstract
4	Cash and temporary investments, net	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalents
5	ifrs-full:TradeAndOtherCurrentReceivables (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:TradeAndOtherCurrentReceivables
6	Income and other taxes receivable	Concept (Monetary)	instant	debit	ifrs-full:CurrentTaxAssetsCurrent
7	Inventories	Concept (Monetary)	instant	debit	ifrs-full:Merchandise
8	Prepaid expenses	Concept (Monetary)	instant	debit	ifrs-full:CurrentPrepayments
9	ifrs-full:CurrentDerivativeFinancialAssets (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:CurrentDerivativeFinancialAssets
10	Total	Concept (Monetary)	instant	debit	ifrs-full:CurrentAssets
11	Non-current assets	Abstract	duration		ifrs-full:NoncurrentAssetsAbstract
12	Property, plant and equipment, net	Concept (Monetary)	instant	debit	ifrs-full:PropertyPlantAndEquipment
13	Intangible assets, net	Concept (Monetary)	instant	debit	ifrs-full:IntangibleAssetsOtherThanGoodwill
14	ifrs-full:Goodwill (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:Goodwill
15	ifrs-full:OtherNoncurrentAssets (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:OtherNoncurrentAssets
16	Total	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentAssets
17	Total	Concept (Monetary)	instant	debit	ifrs-full:Assets
18	LIABILITIES AND OWNERS' EQUITY	Abstract	duration		ifrs-full:EquityAndLiabilitiesAbstract
19	Current liabilities	Abstract	duration		ifrs-full:CurrentLiabilitiesAbstract
20	Short-term borrowings	Concept (Monetary)	instant	credit	ifrs-full:ShorttermBorrowings
21	ifrs-full:TradeAndOtherCurrentPayables (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:TradeAndOtherCurrentPayables
22	Income and other taxes payable	Concept (Monetary)	instant	credit	ifrs-full:CurrentTaxLiabilitiesCurrent
23	Dividends payable	Concept (Monetary)	instant	credit	ifrs-full:CurrentDividendPayables
24	tu:AdvanceBillingsAndCustomerDeposits (terseLabel)	Concept (Monetary)	instant	credit	tu:AdvanceBillingsAndCustomerDeposits
25	Provisions	Concept (Monetary)	instant	credit	ifrs-full:CurrentProvisions
26	ifrs-full:CurrentPortionOfLongtermBorrowings (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:CurrentPortionOfLongtermBorrowings
27	ifrs-full:CurrentDerivativeFinancialLiabilities (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:CurrentDerivativeFinancialLiabilities
28	Total	Concept (Monetary)	instant	credit	ifrs-full:CurrentLiabilities
29	Non-current liabilities	Abstract	duration		ifrs-full:NoncurrentLiabilitiesAbstract
30	Provisions	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentProvisions
31	ifrs-full:LongtermBorrowings (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:LongtermBorrowings
32	ifrs-full:OtherNoncurrentLiabilities (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:OtherNoncurrentLiabilities
33	Deferred income taxes	Concept (Monetary)	instant	credit	ifrs-full:DeferredTaxLiabilities
34	Total	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentLiabilities
35	Liabilities	Concept (Monetary)	instant	credit	ifrs-full:Liabilities
36	Owners' equity	Abstract	duration		ifrs-full:EquityAbstract
37	Common equity	Concept (Monetary)	instant	credit	ifrs-full:EquityAttributableToOwnersOfParent
38	ifrs-full:NoncontrollingInterests (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:NoncontrollingInterests
39	ifrs-full:Equity (totalLabel)	Concept (Monetary)	instant	credit	ifrs-full:Equity
40	Total	Concept (Monetary)	instant	credit	ifrs-full:EquityAndLiabilities
41	ifrs-full:EstimatedFinancialEffectOfContingentLiabilities (terseLabel)	Concept (Monetary)	instant		ifrs-full:EstimatedFinancialEffectOfContingentLiabilities

Model Structure
Network	00300 - Statement - Consolidated statements of changes in owners' equity (http://www.telus.com/role/StatementConsolidatedStatementsOfChangesInOwnersEquity)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Consolidated statements of changes in owners' equity	Abstract	duration		ifrs-full:StatementOfChangesInEquityAbstract
2	Statement of changes in equity [table]	Table	duration		ifrs-full:StatementOfChangesInEquityTable
3	Components of equity [axis]	Axis	duration		ifrs-full:ComponentsOfEquityAxis
4	Equity contributed, Common shares	Member	duration		ifrs-full:IssuedCapitalMember
5	Contributed surplus	Member	duration		ifrs-full:AdditionalPaidinCapitalMember
6	Retained earnings	Member	duration		ifrs-full:RetainedEarningsMember
7	Accumulated other comprehensive income	Member	duration		ifrs-full:AccumulatedOtherComprehensiveIncomeMember
8	Common equity	Member	duration		ifrs-full:EquityAttributableToOwnersOfParentMember
9	Non-controlling interests	Member	duration		ifrs-full:NoncontrollingInterestsMember
10	Equity [member]	Member	duration		ifrs-full:EquityMember
11	Changes in owners' equity	LineItems	duration		ifrs-full:StatementOfChangesInEquityLineItems
12	Balance (in shares)	Concept (Shares)	instant		ifrs-full:NumberOfSharesOutstanding
13	ifrs-full:NumberOfSharesOutstanding (periodEndLabel)	Concept (Shares)	instant		ifrs-full:NumberOfSharesOutstanding
14	ifrs-full:Equity (periodStartLabel)	Concept (Monetary)	instant	credit	ifrs-full:Equity
15	ifrs-full:Equity (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:Equity
16	ifrs-full:ProfitLoss (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
17	ifrs-full:OtherComprehensiveIncome (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncome
18	Dividends	Concept (Monetary)	duration	debit	tu:DividendsDeclared
19	Dividends reinvested and optional cash payments (in shares)	Concept (Shares)	duration		tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsShares
20	Dividends reinvested and optional cash payments	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsValue
21	Treasury shares acquired (in shares)	Concept (Shares)	duration		tu:TreasuryStockAcquiredShares
22	ifrs-full:PurchaseOfTreasuryShares (negatedLabel)	Concept (Monetary)	duration	debit	ifrs-full:PurchaseOfTreasuryShares
23	Shares settled from Treasury (in shares)	Concept (Shares)	duration		tu:TreasuryStockRetiredShares
24	Shares settled from Treasury	Concept (Monetary)	duration	credit	ifrs-full:CancellationOfTreasuryShares
25	Share option award net-equity settlement feature (in shares)	Concept (Shares)	duration		tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureShares
26	Share option award net-equity settlement feature	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureValue
27	Normal course issuer bid purchase of Common Shares (in shares)	Concept (Shares)	duration		tu:CommonSharePurchaseNormalCourseIssuerBidShares
28	Normal course issuer bid purchase of Common Shares	Concept (Monetary)	duration	debit	tu:CommonSharePurchaseNormalCourseIssuerBidValue
29	Issue of shares in business combination (in shares)	Concept (Shares)	duration		tu:IssueOfEquityInBusinessCombinationShares
30	Issue of shares in business combination	Concept (Monetary)	duration	credit	tu:IssueOfEquityInBusinessCombinationValue
31	Liability for automatic share purchase plan commitment pursuant to normal course issuer bids for Common Shares	Abstract	duration		tu:LiabilityForAutomaticSharePurchasePlanCommitmentNormalCourseIssuerBidAbstract
32	Reversal of opening liability for automatic share purchase plan commitment pursuant to normal course issuer bids for Common Shares	Concept (Monetary)	duration	credit	tu:LiabilityReleaseAutomaticSharePurchasePlanCommitmentNormalCourseIssuerBid
33	Change in ownership interests of subsidiary	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
34	Other (in shares)	Concept (Shares)	duration		tu:IncreaseDecreaseThroughTransfersAndOtherChangesEquityShares
35	Other	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity

Model Structure
Network	00400 - Statement - Consolidated statements of cash flows (http://www.telus.com/role/StatementConsolidatedStatementsOfCashFlows)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	ifrs-full:StatementOfCashFlowsAbstract (label)	Abstract	duration		ifrs-full:StatementOfCashFlowsAbstract
2	OPERATING ACTIVITIES	Abstract	duration		ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
3	ifrs-full:ProfitLoss (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
4	ifrs-full:AdjustmentsForReconcileProfitLossAbstract (terseLabel)	Abstract	duration		ifrs-full:AdjustmentsForReconcileProfitLossAbstract
5	Depreciation and amortization	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
6	Deferred income taxes	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDeferredTaxExpense
7	ifrs-full:AdjustmentsForSharebasedPayments (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForSharebasedPayments
8	Net employee defined benefit plans expense	Concept (Monetary)	duration	debit	tu:PensionAndOtherDefinedBenefitsExpense
9	Employer contributions to employee defined benefit plans	Concept (Monetary)	duration	credit	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees
10	Other	Concept (Monetary)	duration	debit	ifrs-full:OtherAdjustmentsToReconcileProfitLoss
11	Net change in non-cash operating working capital	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseInWorkingCapital
12	Cash provided by operating activities	Concept (Monetary)	duration		ifrs-full:CashFlowsFromUsedInOperatingActivities
13	ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract (terseLabel)	Abstract	duration		ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
14	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences (negatedLabel)	Concept (Monetary)	duration	credit	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences
15	Cash payments for spectrum licences	Concept (Monetary)	duration	credit	tu:PaymentsForSpectrumLicences
16	Cash payments for acquisitions, net	Concept (Monetary)	duration	credit	tu:CashPaymentsToAcquireBusinessesNet
17	Real estate joint ventures advances and contributions	Concept (Monetary)	duration	credit	tu:RealEstateJointVenturesAdvancesAndContributions
18	Real estate joint ventures receipts	Concept (Monetary)	duration	debit	tu:RealEstateJointVentureReceipts
19	Proceeds on dispositions	Concept (Monetary)	duration	debit	ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
20	Other	Concept (Monetary)	duration	debit	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities
21	Cash used by investing activities	Concept (Monetary)	duration	debit	ifrs-full:CashFlowsFromUsedInInvestingActivities
22	FINANCING ACTIVITIES	Abstract	duration		ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
23	Dividends paid to holders of Common Shares	Concept (Monetary)	duration	credit	ifrs-full:DividendsPaidClassifiedAsFinancingActivities
24	Purchases of Common Shares for cancellation	Concept (Monetary)	duration	credit	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
25	ifrs-full:ProceedsFromNoncurrentBorrowings (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:ProceedsFromNoncurrentBorrowings
26	Redemptions and repayment of long-term debt	Concept (Monetary)	duration	credit	ifrs-full:RepaymentsOfNoncurrentBorrowings
27	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries
28	Issue of shares by subsidiary to non-controlling interests	Concept (Monetary)	duration	credit	ifrs-full:PaymentsForShareIssueCosts
29	Other	Concept (Monetary)	duration	debit	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities
30	Cash used by financing activities	Concept (Monetary)	duration	debit	ifrs-full:CashFlowsFromUsedInFinancingActivities
31	CASH POSITION	Abstract	duration		tu:CashPositionAbstract
32	Increase in cash and temporary investments, net	Concept (Monetary)	duration	debit	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
33	ifrs-full:CashAndCashEquivalents (periodStartLabel)	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalents
34	ifrs-full:CashAndCashEquivalents (periodEndLabel)	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalents
35	SUPPLEMENTAL DISCLOSURE OF OPERATING CASH FLOWS	Abstract	duration		tu:SupplementalCashFlowInformationOperatingCashFlowsAbstract
36	Interest paid	Concept (Monetary)	duration	credit	ifrs-full:InterestPaidClassifiedAsOperatingActivities
37	Interest received	Concept (Monetary)	duration	debit	ifrs-full:InterestReceivedClassifiedAsOperatingActivities
38	Income taxes paid, net	Concept (Monetary)	duration	credit	ifrs-full:IncomeTaxesPaidRefund

Model Structure
Network	10001 - Disclosure - notes to consolidated financial statements (http://www.telus.com/role/DisclosureNotesToConsolidatedFinancialStatements)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	notes to consolidated financial statements	Abstract	duration		tu:DisclosureOfNotesToConsolidatedFinancialStatementsAbstract
2	notes to consolidated financial statements	Concept (TextBlock)	duration		ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory

Model Structure
Network	10101 - Disclosure - summary of significant accounting policies (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPolicies)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	summary of significant accounting policies	Abstract	duration		tu:SignificantAccountingPoliciesAbstract
2	summary of significant accounting policies	Concept (TextBlock)	duration		ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory

Model Structure
Network	10201 - Disclosure - accounting policy developments (http://www.telus.com/role/DisclosureAccountingPolicyDevelopments)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounting policy developments	Abstract	duration		tu:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryAbstract
2	accounting policy developments	Concept (TextBlock)	duration		ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory

Model Structure
Network	10301 - Disclosure - capital structure financial policies (http://www.telus.com/role/DisclosureCapitalStructureFinancialPolicies)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	capital structure financial policies	Abstract	duration		ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
2	capital structure financial policies	Concept (TextBlock)	duration		ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory

Model Structure
Network	10401 - Disclosure - financial instruments (http://www.telus.com/role/DisclosureFinancialInstruments)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	financial instruments	Concept (TextBlock)	duration		ifrs-full:DisclosureOfFinancialInstrumentsExplanatory

Model Structure
Network	10501 - Disclosure - segment information (http://www.telus.com/role/DisclosureSegmentInformation)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	segment information	Abstract	duration		ifrs-full:DisclosureOfOperatingSegmentsAbstract
2	segment information	Concept (TextBlock)	duration		ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory

Model Structure
Network	10601 - Disclosure - revenue from contracts with customers (http://www.telus.com/role/DisclosureRevenueFromContractsWithCustomers)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	revenue from contracts with customers	Abstract	duration		ifrs-full:TradeAndOtherReceivablesAbstract
2	revenue from contracts with customers	Concept (TextBlock)	duration		ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory

Model Structure
Network	10701 - Disclosure - other operating income (http://www.telus.com/role/DisclosureOtherOperatingIncome)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other operating income	Abstract	duration		tu:OtherOperatingIncomeAbstract
2	other operating income	Concept (TextBlock)	duration		ifrs-full:DisclosureOfOtherOperatingIncomeExplanatory

Model Structure
Network	10801 - Disclosure - employee benefits expense (http://www.telus.com/role/DisclosureEmployeeBenefitsExpense)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee benefits expense	Abstract	duration		ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
2	employee benefits expense	Concept (TextBlock)	duration		ifrs-full:DisclosureOfEmployeeBenefitsExplanatory

Model Structure
Network	10901 - Disclosure - financing costs (http://www.telus.com/role/DisclosureFinancingCosts)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financing costs	Abstract	duration		tu:FinancingCostsAbstract
2	financing costs	Concept (TextBlock)	duration		tu:DisclosureOfFinancingCostsTextBlock

Model Structure
Network	11001 - Disclosure - income taxes (http://www.telus.com/role/DisclosureIncomeTaxes)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	income taxes	Abstract	duration		ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2	income taxes	Concept (TextBlock)	duration		ifrs-full:DisclosureOfIncomeTaxExplanatory

Model Structure
Network	11101 - Disclosure - other comprehensive income (http://www.telus.com/role/DisclosureOtherComprehensiveIncome)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other comprehensive income	Abstract	duration		ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract
2	other comprehensive income	Concept (TextBlock)	duration		ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory

Model Structure
Network	11201 - Disclosure - per share amounts (http://www.telus.com/role/DisclosurePerShareAmounts)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	per share amounts	Abstract	duration		tu:PerShareAmountsAbstract
2	per share amounts	Concept (TextBlock)	duration		ifrs-full:DisclosureOfEarningsPerShareExplanatory

Model Structure
Network	11301 - Disclosure - dividends per share (http://www.telus.com/role/DisclosureDividendsPerShare)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	dividends per share	Abstract	duration		tu:DividendsPerShareAbstract
2	dividends per share	Concept (TextBlock)	duration		ifrs-full:DisclosureOfDividendsExplanatory

Model Structure
Network	11401 - Disclosure - share-based compensation (http://www.telus.com/role/DisclosureShareBasedCompensation)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	share-based compensation	Abstract	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	share-based compensation	Concept (TextBlock)	duration		ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory

Model Structure
Network	11501 - Disclosure - employee future benefits (http://www.telus.com/role/DisclosureEmployeeFutureBenefits)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	employee future benefits	Concept (TextBlock)	duration		tu:EmployeeFutureBenefitsTextBlock

Model Structure
Network	11601 - Disclosure - restructuring and other costs (http://www.telus.com/role/DisclosureRestructuringAndOtherCosts)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	restructuring and other costs	Abstract	duration		tu:DisclosureOfRestructuringAndOtherCostsAbstract
2	restructuring and other costs	Concept (TextBlock)	duration		tu:DisclosureOfRestructuringAndOtherCostsExplanatory

Model Structure
Network	11701 - Disclosure - property, plant and equipment (http://www.telus.com/role/DisclosurePropertyPlantAndEquipment)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	property, plant and equipment	Abstract	duration		ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2	property, plant and equipment	Concept (TextBlock)	duration		ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory

Model Structure
Network	11801 - Disclosure - intangible assets and goodwill (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwill)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	intangible assets and goodwill	Abstract	duration		ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	intangible assets and goodwill	Concept (TextBlock)	duration		ifrs-full:DisclosureOfIntangibleAssetsExplanatory

Model Structure
Network	11901 - Disclosure - leases (http://www.telus.com/role/DisclosureLeases)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	leases	Abstract	duration		ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
2	leases	Concept (TextBlock)	duration		ifrs-full:DisclosureOfLeasesExplanatory

Model Structure
Network	12001 - Disclosure - other long-term assets (http://www.telus.com/role/DisclosureOtherLongTermAssets)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other long-term assets	Abstract	duration		tu:OtherNoncurrentAssetsAbstract
2	other long-term assets	Concept (TextBlock)	duration		tu:DisclosureOfOtherLongTermAssetsTextBlock

Model Structure
Network	12101 - Disclosure - real estate joint ventures (http://www.telus.com/role/DisclosureRealEstateJointVentures)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	real estate joint ventures	Abstract	duration		ifrs-full:DisclosureOfJointVenturesAbstract
2	real estate joint ventures	Concept (TextBlock)	duration		ifrs-full:DisclosureOfUnconsolidatedStructuredEntitiesExplanatory

Model Structure
Network	12201 - Disclosure - short-term borrowings (http://www.telus.com/role/DisclosureShortTermBorrowings)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	short-term borrowings	Abstract	duration		ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowingsAbstract
2	short-term borrowings	Concept (TextBlock)	duration		ifrs-full:DisclosureOfBorrowingsExplanatory

Model Structure
Network	12301 - Disclosure - accounts payable and accrued liabilities (http://www.telus.com/role/DisclosureAccountsPayableAndAccruedLiabilities)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounts payable and accrued liabilities	Abstract	duration		ifrs-full:TradeAndOtherPayablesAbstract
2	accounts payable and accrued liabilities	Concept (TextBlock)	duration		ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory

Model Structure
Network	12401 - Disclosure - advance billings and customer deposits (http://www.telus.com/role/DisclosureAdvanceBillingsAndCustomerDeposits)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	advance billings and customer deposits	Abstract	duration		tu:AdvanceBillingsAndCustomerDepositsAbstract
2	advance billings and customer deposits	Concept (TextBlock)	duration		ifrs-full:DisclosureOfDepositsFromCustomersExplanatory

Model Structure
Network	12501 - Disclosure - provisions (http://www.telus.com/role/DisclosureProvisions)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	provisions	Abstract	duration		ifrs-full:DisclosureOfOtherProvisionsAbstract
2	provisions	Concept (TextBlock)	duration		ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory

Model Structure
Network	12601 - Disclosure - long-term debt (http://www.telus.com/role/DisclosureLongTermDebt)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	long-term debt	Concept (TextBlock)	duration		tu:DisclosureOfLongTermBorrowingsExplanatory

Model Structure
Network	12701 - Disclosure - other long-term liabilities (http://www.telus.com/role/DisclosureOtherLongTermLiabilities)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other long-term liabilities	Abstract	duration		ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract
2	other long-term liabilities	Concept (TextBlock)	duration		tu:DisclosureOfOtherLongTermLiabilitiesTextBlock

Model Structure
Network	12801 - Disclosure - Common Share capital (http://www.telus.com/role/DisclosureCommonShareCapital)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Common Share capital	Abstract	duration		ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
2	Common Share capital	Concept (TextBlock)	duration		ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory

Model Structure
Network	12901 - Disclosure - contingent liabilities (http://www.telus.com/role/DisclosureContingentLiabilities)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	contingent liabilities	Abstract	duration		ifrs-full:DisclosureOfContingentLiabilitiesAbstract
2	contingent liabilities	Concept (TextBlock)	duration		ifrs-full:DisclosureOfContingentLiabilitiesExplanatory

Model Structure
Network	13001 - Disclosure - related party transactions (http://www.telus.com/role/DisclosureRelatedPartyTransactions)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	related party transactions	Abstract	duration		ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
2	related party transactions	Concept (TextBlock)	duration		ifrs-full:DisclosureOfRelatedPartyExplanatory

Model Structure
Network	13101 - Disclosure - additional statement of cash flow information (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformation)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	additional statement of cash flow information	Abstract	duration		tu:DisclosureOfAdditionalStatementOfCashFlowInformationAbstract
2	additional statement of cash flow information	Concept (TextBlock)	duration		ifrs-full:DisclosureOfCashFlowStatementExplanatory

Model Structure
Network	20102 - Disclosure - summary of significant accounting policies (Policies) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	summary of significant accounting policies	Abstract	duration	tu:SignificantAccountingPoliciesAbstract
2	Consolidation	Concept (TextBlock)	duration	ifrs-full:DisclosureOfBasisOfConsolidationExplanatory
3	Use of estimates and judgments	Concept (TextBlock)	duration	ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
4	Financial instruments - recognition and measurement	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
5	Hedge accounting	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForHedgingExplanatory
6	Revenue recognition	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
7	Government assistance	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForGovernmentGrants
8	Cost of acquisition and advertising costs	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForCustomerAcquisitionCostsExplanatory
9	Research and development	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
10	Depreciation, amortization and impairment	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory
11	Translation of foreign currencies	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
12	Income and other taxes	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
13	Share-based compensation	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
14	Employee future benefit plans	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
15	Cash and temporary investments, net	Concept (TextBlock)	duration	tu:DescriptionOfAccountingPolicyForCashAndTemporaryInvestmentsNetExplanatoryPolicyTextBlock
16	Sales of trade receivables	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory
17	Inventories	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
18	Property, plant and equipment; intangible assets	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
19	Leases	Concept (TextBlock)	duration	ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
20	Investments	Concept (TextBlock)	duration	ifrs-full:DisclosureOfSignificantJudgementsAndAssumptionsMadeInRelationToInterestsInOtherEntitiesExplanatory

Model Structure
Network	30103 - Disclosure - summary of significant accounting policies (Tables) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	summary of significant accounting policies	Abstract	duration		tu:SignificantAccountingPoliciesAbstract
2	Schedule of useful lives of property, plant, and equipment and intangible assets	Concept (TextBlock)	duration		ifrs-full:DisclosureOfDepreciationAndAmortisationExpenseExplanatory

Model Structure
Network	30203 - Disclosure - accounting policy developments (Tables) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	accounting policy developments	Abstract	duration	tu:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryAbstract
2	Schedule of the impacts of application of IFRS 15 on the Consolidated statements of income and other comprehensive income	Concept (TextBlock)	duration	tu:DisclosureOfImpactOfIfrs15ApplicationOnConsolidatedStatementsOfIncomeAndComprehensiveIncomeTableTextBlock
3	Schedule of the impact of application of IFRS 15 on Consolidated statements of financial position	Concept (TextBlock)	duration	tu:DisclosureOfImpactOfIfrs15ApplicationOnConsolidatedStatementsOfFinancialPositionTableTextBlock
4	Schedule of the impact of application of IFRS 15 on Consolidated statements of cash flows	Concept (TextBlock)	duration	tu:DisclosureOfImpactOfIfrs15ApplicationOnConsolidatedStatementOfCashFlowsTableTextBlock

Model Structure
Network	30303 - Disclosure - capital structure financial policies (Tables) (http://www.telus.com/role/DisclosureCapitalStructureFinancialPoliciesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	capital structure financial policies	Abstract	duration	ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
2	Disclosure of financial objectives that support the entity's long-term strategy	Concept (TextBlock)	duration	tu:DisclosureOfFinancialObjectivesForManagingCapitalExplanatory
3	Disclosure of the dividend payout ratio	Concept (TextBlock)	duration	tu:DisclosureOfDividendPayoutRatioExplanatory

Model Structure
Network	30403 - Disclosure - financial instruments (Tables) (http://www.telus.com/role/DisclosureFinancialInstrumentsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	financial instruments	Abstract	duration	ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Schedule of financial instruments and the nature of certain risks to which they may be subject	Concept (TextBlock)	duration	ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory
3	Schedule of maximum exposure (excluding income tax effects) to credit risk	Concept (TextBlock)	duration	ifrs-full:DisclosureOfCreditRiskExposureExplanatory
4	Analysis of the age of customer accounts receivable	Concept (TextBlock)	duration	tu:AnalysisOfAgingCustomerAccountsReceivableTextBlock
5	Summary of activity related to the allowance for doubtful accounts	Concept (TextBlock)	duration	ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory
6	Schedule of contractual maturities of undiscounted financial liabilities, Non-derivative	Concept (TextBlock)	duration	ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
7	Schedule of contractual maturities of undiscounted financial liabilities, Derivative	Concept (TextBlock)	duration	ifrs-full:MaturityAnalysisForDerivativeFinancialLiabilities
8	Sensitivity analysis of exposure to market risks	Concept (TextBlock)	duration	ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk
9	Schedule of financial instruments measured at fair value on a recurring basis	Concept (TextBlock)	duration	ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
10	Schedule of derivative financial instruments measured at fair value on a recurring basis	Concept (TextBlock)	duration	ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
11	Schedule of long-term debt amortized cost and fair value	Concept (TextBlock)	duration	ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
12	Schedule of gains and losses, excluding income tax effects, on derivative instruments classified as cash flow hedging items	Concept (TextBlock)	duration	ifrs-full:DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory
13	Schedule of gains and losses arising from derivative instruments classified as held for trading	Concept (TextBlock)	duration	tu:ScheduleOfGainsAndLossesFromDerivativeInstrumentsClassifiedAsHeldForTradingTableTextBlock

Model Structure
Network	30503 - Disclosure - segment information (Tables) (http://www.telus.com/role/DisclosureSegmentInformationTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	segment information	Abstract	duration		ifrs-full:DisclosureOfOperatingSegmentsAbstract
2	Reconciliation of revenue and income before income taxes by segment	Concept (TextBlock)	duration		tu:DisclosureOfOperatingSegmentsReconciliationExplanatory

Model Structure
Network	30603 - Disclosure - revenue from contracts with customers (Tables) (http://www.telus.com/role/DisclosureRevenueFromContractsWithCustomersTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	revenue from contracts with customers	Abstract	duration		ifrs-full:TradeAndOtherReceivablesAbstract
2	Schedule of accounts receivable	Concept (TextBlock)	duration		tu:DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesTextBlock

Model Structure
Network	30703 - Disclosure - other operating income (Tables) (http://www.telus.com/role/DisclosureOtherOperatingIncomeTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other operating income	Abstract	duration		tu:OtherOperatingIncomeAbstract
2	Schedule of other operating income	Concept (TextBlock)	duration		tu:ScheduleOfOtherOperatingIncomeTextBlock

Model Structure
Network	30803 - Disclosure - employee benefits expense (Tables) (http://www.telus.com/role/DisclosureEmployeeBenefitsExpenseTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee benefits expense	Abstract	duration		ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
2	Disclosure of information about employees	Concept (TextBlock)	duration		ifrs-full:DisclosureOfInformationAboutEmployeesExplanatory

Model Structure
Network	30903 - Disclosure - financing costs (Tables) (http://www.telus.com/role/DisclosureFinancingCostsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financing costs	Abstract	duration		tu:FinancingCostsAbstract
2	Schedule of financing costs	Concept (TextBlock)	duration		tu:DisclosureOfDetailedInformationAboutFinancingCostsTextBlock

Model Structure
Network	31003 - Disclosure - income taxes (Tables) (http://www.telus.com/role/DisclosureIncomeTaxesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	income taxes	Abstract	duration	ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2	Expense composition	Concept (TextBlock)	duration	tu:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
3	Rate reconciliations	Concept (TextBlock)	duration	tu:IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
4	Temporary differences	Concept (TextBlock)	duration	ifrs-full:DisclosureOfDeferredTaxesExplanatory

Model Structure
Network	31103 - Disclosure - other comprehensive income (Tables) (http://www.telus.com/role/DisclosureOtherComprehensiveIncomeTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other comprehensive income	Abstract	duration		ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract
2	Schedule of other comprehensive income	Concept (TextBlock)	duration		tu:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatoryTableTextBlock

Model Structure
Network	31203 - Disclosure - per share amounts (Tables) (http://www.telus.com/role/DisclosurePerShareAmountsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	per share amounts	Abstract	duration		tu:PerShareAmountsAbstract
2	Reconciliation of the denominators of the basic and diluted per share computations	Concept (TextBlock)	duration		ifrs-full:EarningsPerShareExplanatory

Model Structure
Network	31303 - Disclosure - dividends per share (Tables) (http://www.telus.com/role/DisclosureDividendsPerShareTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	dividends per share	Abstract	duration		tu:DividendsPerShareAbstract
2	Dividends per share	Concept (TextBlock)	duration		tu:IfrsDividendsDeclaredTableTextBlock

Model Structure
Network	31403 - Disclosure - share-based compensation (Tables) (http://www.telus.com/role/DisclosureShareBasedCompensationTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	share-based compensation	Abstract	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration	ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration	ifrs-full:SharebasedPaymentArrangementsMember
5	TELUS Corporation restricted stock units	Member	duration	tu:TelusCorporationRestrictedStockUnitsMember
6	TELUS International (Cda) Inc. restricted stock units	Member	duration	tu:TelusInternationalCdaIncRestrictedStockUnitsMember
7	TELUS Corporation share options	Member	duration	tu:TelusCorporationShareOptionsMember
8	TELUS International (Cda) Inc. share options	Member	duration	tu:TelusInternationalCdaIncShareOptionsMember
9	share-based compensation	LineItems	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
10	Details of share-based compensation expense	Concept (TextBlock)	duration	ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss
11	Disclosure of restricted stocks units	Concept (TextBlock)	duration	ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
12	Disclosure of stock options	Concept (TextBlock)	duration	ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory

Model Structure
Network	31503 - Disclosure - employee future benefits (Tables) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	employee future benefits	Abstract	duration	tu:EmployeeFutureBenefitsAbstract
2	Schedule of defined benefit pension plans funded status	Concept (TextBlock)	duration	ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
3	Schedule of defined benefit pension plan expense (recovery)	Concept (TextBlock)	duration	tu:DisclosureOfDefinedBenefitPlanExpenseTableTextBlock
4	Summary of fair value measurements of our defined benefit pension plan assets	Concept (TextBlock)	duration	ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory
5	Schedule of estimated future benefit payments from our defined benefit pension plans	Concept (TextBlock)	duration	tu:DisclosureOfDefinedBenefitPlanFutureBenefitPaymentsTableTextBlock
6	Schedule of defined benefit pension plans' target asset allocations and actual asset allocations	Concept (TextBlock)	duration	tu:DisclosureOfDefinedBenefitPensionPlanAssetAllocationsTableTextBlock
7	Summary of significant weighted average actuarial assumptions in measuring defined benefit obligations and the sensitivity of key assumptions	Concept (TextBlock)	duration	ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
8	Schedule of defined contribution pension plan expense	Concept (TextBlock)	duration	tu:DisclosureOfDefinedContributionPensionPlanExpenseTableTextBlock

Model Structure
Network	31603 - Disclosure - restructuring and other costs (Tables) (http://www.telus.com/role/DisclosureRestructuringAndOtherCostsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	restructuring and other costs	Abstract	duration		tu:DisclosureOfRestructuringAndOtherCostsAbstract
2	Schedule of restructuring and other costs presented in the Consolidated statements of income and other comprehensive income	Concept (TextBlock)	duration		tu:ScheduleOfRestructuringAndOtherCostsExplanatory

Model Structure
Network	31703 - Disclosure - property, plant and equipment (Tables) (http://www.telus.com/role/DisclosurePropertyPlantAndEquipmentTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	property, plant and equipment	Abstract	duration		ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2	Schedule of property, plant and equipment	Concept (TextBlock)	duration		ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory

Model Structure
Network	31803 - Disclosure - intangible assets and goodwill (Tables) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	intangible assets and goodwill	Abstract	duration	ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	Schedule of intangible assets and goodwill	Concept (TextBlock)	duration	ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory
3	Summary of acquisition-date fair values assigned to the assets acquired and liabilities assumed	Concept (TextBlock)	duration	ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
4	Summary of pro forma information of business acquisition operating results	Concept (TextBlock)	duration	tu:DisclosureOfBusinessAcquisitionProFormaInformationTableTextBlock
5	Schedule of carrying values of intangible assets with indefinite lives and goodwill	Concept (TextBlock)	duration	tu:DisclosureOfCarryingValueIndefiniteLivedIntangibleAssetsAndGoodwillTextBlock

Model Structure
Network	31903 - Disclosure - leases (Tables) (http://www.telus.com/role/DisclosureLeasesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	leases	Abstract	duration		ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
2	Minimum lease payments under operating leases	Concept (TextBlock)	duration		ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory

Model Structure
Network	32003 - Disclosure - other long-term assets (Tables) (http://www.telus.com/role/DisclosureOtherLongTermAssetsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other long-term assets	Abstract	duration		tu:OtherNoncurrentAssetsAbstract
2	Schedule of other long-term assets	Concept (TextBlock)	duration		tu:ScheduleOfOtherLongTermAssetsTextBlock

Model Structure
Network	32103 - Disclosure - real estate joint ventures (Tables) (http://www.telus.com/role/DisclosureRealEstateJointVenturesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	real estate joint ventures	Abstract	duration	ifrs-full:DisclosureOfJointVenturesAbstract
2	Schedule of real estate joint ventures financial information	Concept (TextBlock)	duration	tu:DisclosureOfRealEstateJointVenturesFinancialInformationExplanatory
3	Schedule of joint ventures investment activity	Concept (TextBlock)	duration	tu:DisclosureOfJointVenturesInvestmentActivityExplanatoryTextBlock
4	Schedule of construction credit facility	Concept (TextBlock)	duration	tu:DisclosureOfConstructionCreditFacilityTextBlock

Model Structure
Network	32303 - Disclosure - accounts payable and accrued liabilities (Tables) (http://www.telus.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounts payable and accrued liabilities	Abstract	duration		ifrs-full:TradeAndOtherPayablesAbstract
2	Schedule of accounts payable and accrued liabilities	Concept (TextBlock)	duration		tu:DisclosureOfTradeAndOtherPayables

Model Structure
Network	32403 - Disclosure - advance billings and customer deposits (Tables) (http://www.telus.com/role/DisclosureAdvanceBillingsAndCustomerDepositsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	advance billings and customer deposits	Abstract	duration		tu:AdvanceBillingsAndCustomerDepositsAbstract
2	Disclosure of advance billings and customer accounts	Concept (TextBlock)	duration		tu:TabularDisclosureOfAdvanceBillingsAndCustomerDeposits

Model Structure
Network	32503 - Disclosure - provisions (Tables) (http://www.telus.com/role/DisclosureProvisionsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	provisions	Abstract	duration		ifrs-full:DisclosureOfOtherProvisionsAbstract
2	Disclosure of other provisions	Concept (TextBlock)	duration		ifrs-full:DisclosureOfOtherProvisionsExplanatory

Model Structure
Network	32603 - Disclosure - long-term debt (Tables) (http://www.telus.com/role/DisclosureLongTermDebtTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	long-term debt	Abstract	duration	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration	ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration	ifrs-full:BorrowingsByNameMember
5	TELUS Corporation notes	Member	duration	tu:TelusCorporationNotesMember
6	TELUS Corporation credit facility	Member	duration	tu:TelusCorporationCreditFacilityMember
7	TELUS Communications Inc. debentures	Member	duration	tu:TelusCommunicationsInc.DebenturesMember
8	TELUS International (Cda) Inc. credit facility	Member	duration	tu:TelusInternationalCdaInc.CreditFacilityMember
9	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
10	Schedule of details of long-term debt	Concept (TextBlock)	duration	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
11	Schedule of long-term debt maturities	Concept (TextBlock)	duration	tu:DisclosureOfDetailedInformationAboutLongTermDebtMaturitiesTableTextBlock

Model Structure
Network	32703 - Disclosure - other long-term liabilities (Tables) (http://www.telus.com/role/DisclosureOtherLongTermLiabilitiesTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other long-term liabilities	Abstract	duration		ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract
2	Schedule of other long-term liabilities	Concept (TextBlock)	duration		ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory

Model Structure
Network	32803 - Disclosure - Common Share capital (Tables) (http://www.telus.com/role/DisclosureCommonShareCapitalTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	Common Share capital	Abstract	duration	ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
2	Schedule of authorized share capital	Concept (TextBlock)	duration	ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
3	Schedule of purchase of Common Shares for cancellation pursuant to normal course issuer bid	Concept (TextBlock)	duration	tu:DisclosureOfPurchaseOfCommonSharesForCancellationTableTextBlock

Model Structure
Network	33003 - Disclosure - related party transactions (Tables) (http://www.telus.com/role/DisclosureRelatedPartyTransactionsTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	related party transactions	Abstract	duration		ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
2	Summary of transactions with key management personnel	Concept (TextBlock)	duration		ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory

Model Structure
Network	33103 - Disclosure - additional statement of cash flow information (Tables) (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformationTables)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	additional statement of cash flow information	Abstract	duration	tu:DisclosureOfAdditionalStatementOfCashFlowInformationAbstract
2	Schedule of operating activities and investing activities	Concept (TextBlock)	duration	tu:DisclosureOfDetailedInformationAboutOperatingActivitiesAndInvestingActivitiesTextBlock
3	Schedule of changes in liabilities arising from financing activities	Concept (TextBlock)	duration	tu:DisclosureOfDetailedInformationAboutChangesInLiabilitiesArisingFromFinancingActivitiesTextBlock

Model Structure
Network	40101 - Disclosure - summary of significant accounting policies - Other (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesOtherDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	summary of significant accounting policies	Abstract	duration		tu:SignificantAccountingPoliciesAbstract
2	Disclosure of subsidiaries [table]	Table	duration		ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
3	Subsidiaries [axis]	Axis	duration		ifrs-full:SignificantInvestmentsInSubsidiariesAxis
4	Entity's total for subsidiaries [member]	Member	duration		ifrs-full:EntitysTotalForSubsidiariesMember
5	TELUS Communications Inc.	Member	duration		tu:TelusCommunicationIncMember
6	TELUS International (Cda) Inc.	Member	duration		tu:TelusInternationalCdaIncMember
7	Range [axis]	Axis	duration		ifrs-full:RangeAxis
8	Ranges [member]	Member	duration		ifrs-full:RangesMember
9	Maximum	Member	duration		ifrs-full:TopOfRangeMember
10	Disclosure of subsidiaries [line items]	LineItems	duration		ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
11	Consolidation	Abstract	duration		tu:ConsolidationAbstract
12	Per cent ownership	Concept (Percent)	duration		ifrs-full:ProportionOfOwnershipInterestInSubsidiary
13	Change in ownership interests of subsidiary	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
14	Non-controlling interest per cent	Concept (Percent)	duration		tu:NonControllingInterestPercent
15	Per cent of net book value	Concept (Percent)	duration		tu:PercentOfNetBookValue
16	Use of estimates and judgements	Abstract	duration		tu:UseOfEstimatesAndJudgementsAbstract
17	Direct costs as a percentage of operating expenses included in the segment performance measure	Concept (Percent)	duration		tu:DirectExpensesAsPercentageOfOperatingExpensesIncludedInSegmentPerformanceMeasure
18	Revenue Recognition	Abstract	duration		ifrs-full:RevenueAbstract
19	Revenues from multiple element arrangements (as a percent)	Concept (Pure)	duration		tu:PercentageRevenueFromMultipleElementArrangements
20	Deferral account liability amortization period	Concept (Duration)	duration		tu:DeferralAccountLiabilityAmortizationPeriod

Model Structure
Network	40102 - Disclosure - summary of significant accounting policies - Useful lives property, plant and equipment (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesUsefulLivesPropertyPlantAndEquipmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	summary of significant accounting policies	Abstract	duration	tu:SignificantAccountingPoliciesAbstract
2	ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable (label)	Table	duration	ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
3	Classes of property, plant and equipment [axis]	Axis	duration	ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
4	Property, plant and equipment [member]	Member	duration	ifrs-full:PropertyPlantAndEquipmentMember
5	Outside plant	Member	duration	tu:OutsidePlantMember
6	Inside plant	Member	duration	tu:InsidePlantMember
7	Wireless site equipment	Member	duration	ifrs-full:ComputerEquipmentMember
8	Other	Member	duration	ifrs-full:OtherPropertyPlantAndEquipmentMember
9	Range [axis]	Axis	duration	ifrs-full:RangeAxis
10	Ranges [member]	Member	duration	ifrs-full:RangesMember
11	Maximum	Member	duration	ifrs-full:TopOfRangeMember
12	Minimum	Member	duration	ifrs-full:BottomOfRangeMember
13	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems (label)	LineItems	duration	ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
14	Useful lives	Concept (Duration)	duration	tu:UsefulLivesPropertyPlantAndEquipment
15	Composite depreciation rate	Concept (Percent)	duration	tu:CompositeDepreciationRate

Model Structure
Network	40103 - Disclosure - summary of significant accounting policies - Useful lives intangible assets (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesUsefulLivesIntangibleAssetsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	summary of significant accounting policies	Abstract	duration	tu:SignificantAccountingPoliciesAbstract
2	Disclosure of detailed information about intangible assets [table]	Table	duration	ifrs-full:DisclosureOfIntangibleAssetsTable
3	Classes of intangible assets other than goodwill [axis]	Axis	duration	ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
4	Total intangible assets	Member	duration	ifrs-full:IntangibleAssetsOtherThanGoodwillMember
5	Wireline subscriber base	Member	duration	tu:WirelineSubscriberBaseMember
6	Customer contracts, customer relationships, and leasehold interests	Member	duration	ifrs-full:CustomerrelatedIntangibleAssetsMember
7	Software	Member	duration	ifrs-full:ComputerSoftwareMember
8	Access to rights-of-way and other	Member	duration	ifrs-full:OtherIntangibleAssetsMember
9	Range [axis]	Axis	duration	ifrs-full:RangeAxis
10	Ranges [member]	Member	duration	ifrs-full:RangesMember
11	Maximum	Member	duration	ifrs-full:TopOfRangeMember
12	Minimum	Member	duration	ifrs-full:BottomOfRangeMember
13	Useful Lives of Intangible Assets Other Than Goodwill	LineItems	duration	ifrs-full:DisclosureOfIntangibleAssetsLineItems
14	Estimated useful lives of purchased intangible assets other than goodwill	Concept (Duration)	duration	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill

Model Structure
Network	40104 - Disclosure - summary of significant accounting policies - Inventories (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesInventoriesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	summary of significant accounting policies	Abstract	duration		tu:SignificantAccountingPoliciesAbstract
2	Inventory	Abstract	duration		tu:InventoryAbstract
3	Wireless handsets, parts and accessories	Concept (Monetary)	instant	debit	tu:InventoryWirelessHandsetsPartsAccessories
4	Costs of goods	Concept (Monetary)	duration	debit	ifrs-full:CostOfSales

Model Structure
Network	40201 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statements of income and other comprehensive income (Details) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsImpactsOfApplicationOfIfrs15ConsolidatedStatementsOfIncomeAndOtherComprehensiveIncomeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounting policy developments	Abstract	duration		tu:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryAbstract
2	Disclosure of expected impact of initial application of new standards or interpretations [table]	Table	duration		ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
3	Range [axis]	Axis	duration		ifrs-full:RangeAxis
4	Ranges [member]	Member	duration		ifrs-full:RangesMember
5	Maximum	Member	duration		ifrs-full:TopOfRangeMember
6	Retrospective application and retrospective restatement [axis]	Axis	duration		ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
7	Currently stated [member]	Member	duration		ifrs-full:RestatedMember
8	IFRS 15 effects	Member	duration		ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
9	Allocation of transaction price (affecting timing of revenue recognition)	Member	duration		tu:AllocationOfTransactionPriceMember
10	Costs incurred to obtain or fulfill a contract with a customer	Member	duration		tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember
11	Pro forma	Member	duration		tu:ProFormaIncludingEffectsOfIfrs15Member
12	Disclosure of expected impact of initial application of new standards or interpretations	LineItems	duration		ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
13	Consolidated statements of income and other comprehensive income	Abstract	duration		ifrs-full:StatementOfComprehensiveIncomeAbstract
14	OPERATING REVENUES	Abstract	duration		tu:OperatingRevenueAbstract
15	Service	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromRenderingOfTelecommunicationServices
16	Equipment	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromSaleOfGoods
17	ifrs-full:RevenueFromContractsWithCustomers (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromContractsWithCustomers
18	ifrs-full:OtherRevenue (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherRevenue
19	ifrs-full:Revenue (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:Revenue
20	OPERATING EXPENSES	Abstract	duration		ifrs-full:ExpenseByNatureAbstract
21	Goods and services purchased	Concept (Monetary)	duration	debit	tu:GoodsAndServicesPurchased
22	ifrs-full:EmployeeBenefitsExpense (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:EmployeeBenefitsExpense
23	Depreciation	Concept (Monetary)	duration		ifrs-full:DepreciationPropertyPlantAndEquipment
24	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (terseLabel)	Concept (Monetary)	duration		ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
25	Total	Concept (Monetary)	duration	debit	ifrs-full:OperatingExpense
26	OPERATING INCOME	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossFromOperatingActivities
27	ifrs-full:FinanceCosts (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:FinanceCosts
28	INCOME BEFORE INCOME TAXES	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossBeforeTax
29	ifrs-full:IncomeTaxExpenseContinuingOperations (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxExpenseContinuingOperations
30	ifrs-full:ProfitLoss (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
31	ifrs-full:OtherComprehensiveIncome (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncome
32	COMPREHENSIVE INCOME	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncome
33	NET INCOME ATTRIBUTABLE TO:	Abstract	duration		ifrs-full:ProfitLossAttributableToAbstract
34	ifrs-full:ProfitLossAttributableToOwnersOfParent (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossAttributableToOwnersOfParent
35	Non-controlling interests	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossAttributableToNoncontrollingInterests
36	ifrs-full:ProfitLoss (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
37	ifrs-full:ComprehensiveIncomeAttributableToAbstract (terseLabel)	Abstract	duration		ifrs-full:ComprehensiveIncomeAttributableToAbstract
38	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
39	Non-controlling interests	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
40	COMPREHENSIVE INCOME	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncome
41	ifrs-full:EarningsPerShareAbstract (terseLabel)	Abstract	duration		ifrs-full:EarningsPerShareAbstract
42	Basic	Concept (Per-Share)	duration		ifrs-full:BasicEarningsLossPerShare
43	Diluted	Concept (Per-Share)	duration		ifrs-full:DilutedEarningsLossPerShare

Model Structure
Network	40202 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statements of financial position (Details) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsImpactsOfApplicationOfIfrs15ConsolidatedStatementsOfFinancialPositionDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounting policy developments	Abstract	duration		tu:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryAbstract
2	Disclosure of expected impact of initial application of new standards or interpretations [table]	Table	duration		ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
3	Range [axis]	Axis	duration		ifrs-full:RangeAxis
4	Ranges [member]	Member	duration		ifrs-full:RangesMember
5	Maximum	Member	duration		ifrs-full:TopOfRangeMember
6	Retrospective application and retrospective restatement [axis]	Axis	duration		ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
7	Currently stated [member]	Member	duration		ifrs-full:RestatedMember
8	IFRS 15 effects	Member	duration		ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
9	Allocation of transaction price (affecting timing of revenue recognition)	Member	duration		tu:AllocationOfTransactionPriceMember
10	Costs incurred to obtain or fulfill a contract with a customer	Member	duration		tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember
11	Pro forma	Member	duration		tu:ProFormaIncludingEffectsOfIfrs15Member
12	Disclosure of expected impact of initial application of new standards or interpretations	LineItems	duration		ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
13	Consolidated statements of financial position	Abstract	duration		ifrs-full:StatementOfFinancialPositionAbstract
14	ifrs-full:AssetsAbstract (terseLabel)	Abstract	duration		ifrs-full:AssetsAbstract
15	Current assets	Abstract	duration		ifrs-full:CurrentAssetsAbstract
16	Cash and temporary investments, net	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalents
17	ifrs-full:TradeAndOtherCurrentReceivables (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:TradeAndOtherCurrentReceivables
18	Income and other taxes receivable	Concept (Monetary)	instant	debit	ifrs-full:CurrentTaxAssetsCurrent
19	Inventories	Concept (Monetary)	instant	debit	ifrs-full:Merchandise
20	Prepaid expenses	Concept (Monetary)	instant	debit	ifrs-full:CurrentPrepayments
21	Total	Concept (Monetary)	instant	debit	ifrs-full:CurrentAssets
22	Contract assets	Concept (Monetary)	instant	debit	ifrs-full:CurrentContractAssets
23	Non-current assets	Abstract	duration		ifrs-full:NoncurrentAssetsAbstract
24	Property, plant and equipment, net	Concept (Monetary)	instant	debit	ifrs-full:PropertyPlantAndEquipment
25	Intangible assets, net	Concept (Monetary)	instant	debit	ifrs-full:IntangibleAssetsOtherThanGoodwill
26	ifrs-full:Goodwill (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:Goodwill
27	ifrs-full:OtherNoncurrentAssets (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:OtherNoncurrentAssets
28	Total	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentAssets
29	Total	Concept (Monetary)	instant	debit	ifrs-full:Assets
30	Contract assets	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentContractAssets
31	LIABILITIES AND OWNERS' EQUITY	Abstract	duration		ifrs-full:EquityAndLiabilitiesAbstract
32	Current liabilities	Abstract	duration		ifrs-full:CurrentLiabilitiesAbstract
33	Short-term borrowings	Concept (Monetary)	instant	credit	ifrs-full:ShorttermBorrowings
34	ifrs-full:TradeAndOtherCurrentPayables (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:TradeAndOtherCurrentPayables
35	Dividends payable	Concept (Monetary)	instant	credit	ifrs-full:CurrentDividendPayables
36	tu:AdvanceBillingsAndCustomerDeposits (terseLabel)	Concept (Monetary)	instant	credit	tu:AdvanceBillingsAndCustomerDeposits
37	Provisions	Concept (Monetary)	instant	credit	ifrs-full:CurrentProvisions
38	ifrs-full:CurrentPortionOfLongtermBorrowings (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:CurrentPortionOfLongtermBorrowings
39	Total	Concept (Monetary)	instant	credit	ifrs-full:CurrentLiabilities
40	Non-current liabilities	Abstract	duration		ifrs-full:NoncurrentLiabilitiesAbstract
41	Provisions	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentProvisions
42	ifrs-full:LongtermBorrowings (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:LongtermBorrowings
43	ifrs-full:OtherNoncurrentLiabilities (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:OtherNoncurrentLiabilities
44	Deferred income taxes	Concept (Monetary)	instant	credit	ifrs-full:DeferredTaxLiabilities
45	Total	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentLiabilities
46	Liabilities	Concept (Monetary)	instant	credit	ifrs-full:Liabilities
47	Owners' equity	Concept (Monetary)	instant	credit	ifrs-full:Equity
48	Total	Concept (Monetary)	instant	credit	ifrs-full:EquityAndLiabilities

Model Structure
Network	40203 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statement of cash flows (Details) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsImpactsOfApplicationOfIfrs15ConsolidatedStatementOfCashFlowsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounting policy developments	Abstract	duration		tu:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatoryAbstract
2	Disclosure of expected impact of initial application of new standards or interpretations [table]	Table	duration		ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
3	Range [axis]	Axis	duration		ifrs-full:RangeAxis
4	Ranges [member]	Member	duration		ifrs-full:RangesMember
5	Maximum	Member	duration		ifrs-full:TopOfRangeMember
6	Retrospective application and retrospective restatement [axis]	Axis	duration		ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
7	Currently stated [member]	Member	duration		ifrs-full:RestatedMember
8	IFRS 15 effects	Member	duration		ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
9	Pro forma	Member	duration		tu:ProFormaIncludingEffectsOfIfrs15Member
10	Disclosure of expected impact of initial application of new standards or interpretations	LineItems	duration		ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
11	Consolidated statements of cash flows	Abstract	duration		ifrs-full:StatementOfCashFlowsAbstract
12	OPERATING ACTIVITIES	Abstract	duration		ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
13	ifrs-full:ProfitLoss (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
14	ifrs-full:AdjustmentsForReconcileProfitLossAbstract (terseLabel)	Abstract	duration		ifrs-full:AdjustmentsForReconcileProfitLossAbstract
15	Depreciation and amortization	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
16	Deferred income taxes	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDeferredTaxExpense
17	Net employee defined benefit plans expense	Concept (Monetary)	duration	debit	tu:PensionAndOtherDefinedBenefitsExpense
18	Employer contributions to employee defined benefit plans	Concept (Monetary)	duration	credit	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees
19	Other	Concept (Monetary)	duration	debit	ifrs-full:OtherAdjustmentsToReconcileProfitLoss
20	Net change in non-cash operating working capital	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseInWorkingCapital
21	Cash provided by operating activities	Concept (Monetary)	duration		ifrs-full:CashFlowsFromUsedInOperatingActivities

Model Structure
Network	40301 - Disclosure - capital structure financial policies (Details) (http://www.telus.com/role/DisclosureCapitalStructureFinancialPoliciesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	capital structure financial policies	Abstract	duration		ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
2	Disclosure of objectives, policies and processes for managing capital [table]	Table	duration		ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable
3	Range [axis]	Axis	duration		ifrs-full:RangeAxis
4	Ranges [member]	Member	duration		ifrs-full:RangesMember
5	Maximum	Member	duration		ifrs-full:TopOfRangeMember
6	Minimum	Member	duration		ifrs-full:BottomOfRangeMember
7	Components of debt and coverage ratios	LineItems	duration		ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems
8	ifrs-full:NetDebt (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:NetDebt
9	EBITDA - excluding restructuring and other costs	Concept (Monetary)	duration	credit	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCosts
10	Net interest cost	Concept (Monetary)	duration	debit	tu:NetInterestCost
11	Debt ratio	Abstract	duration		tu:DebtRatioAbstract
12	Net debt to EBITDA - excluding restructuring and other costs	Concept (Pure)	duration		tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatio
13	Target Net debt to EBITDA - excluding restructuring and other costs	Concept (Pure)	duration		tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatioTarget
14	Net debt to operating cash flow ratio maximum	Concept (Pure)	duration		tu:NetDebtToOperatingCashFlowMaximumRatio
15	Coverage ratios	Abstract	duration		tu:CoverageRatiosAbstract
16	Earnings coverage ratio	Concept (Pure)	duration		tu:EarningsCoverageRatio
17	EBITDA - excluding restructuring and other costs interest coverage ratio	Concept (Pure)	duration		tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCostsInterestCoverageRatio
18	Calculation of net debt	Abstract	duration		tu:CalculationOfNetDebtAbstract
19	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
20	Debt issuance costs netted against long-term debt	Concept (Monetary)	instant	credit	tu:DebtIssuanceCostsNettedAgainstLongTermDebt
21	Derivative (assets) liabilities, net	Concept (Monetary)	instant	credit	tu:NetDerivativeFinancialLiabilitiesAssetsNet
22	Accumulated other comprehensive income amounts arising from financial instruments used to manage interest rate and currency risks associated with U.S. dollar-denominated long-term debt (excluding tax effects)	Concept (Monetary)	instant	credit	tu:AccumulatedOtherComprehensiveIncomePreTaxInterestRateAndCurrencyHedgesOnUSDLongTermDebt
23	ifrs-full:CashAndCashEquivalents (negatedLabel)	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalents
24	Short-term borrowings	Concept (Monetary)	instant	credit	ifrs-full:ShorttermBorrowings
25	Net debt	Concept (Monetary)	instant	credit	ifrs-full:NetDebt
26	Calculation of EBITDA - excluding restructuring and other costs	Abstract	duration		tu:CalculationOfEbitdaExcludingRestructuringAndOtherCostsAbstract
27	EBITDA	Concept (Monetary)	duration	credit	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization
28	tu:RestructuringAndOtherCosts (terseLabel)	Concept (Monetary)	duration	debit	tu:RestructuringAndOtherCosts
29	EBITDA - excluding restructuring and other costs	Concept (Monetary)	duration	credit	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCosts
30	Changes in debt and coverage ratios	Abstract	duration		tu:ChangesInDebtAndCoverageRatiosAbstract
31	tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatio (label)	Concept (Pure)	duration		tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatio
32	Increase (decrease) in net debt to EBITDA ratio due to increase (decrease) in net debt	Concept (Pure)	duration		tu:IncreaseDecreaseNetDebtToEBITDRatioDueToChangeInNetDebt
33	Increase (decrease) in net debt to EBITDA ratio due to (increase) decrease in EBITDA	Concept (Pure)	duration		tu:IncreaseDecreaseNetDebtToEbitdaRatioDueToChangeInEbitda
34	tu:EarningsCoverageRatio (label)	Concept (Pure)	duration		tu:EarningsCoverageRatio
35	Increase (decrease) in earnings coverage ratio due to an (increase) decrease in borrowing costs	Concept (Pure)	duration		tu:IncreaseDecreaseEarningsCoverageRatioDueToChangeInBorrowingCosts
36	Increase (decrease) in earnings coverage ratio due to an increase (decrease) in income before borrowing costs and income taxes	Concept (Pure)	duration		tu:IncreaseDecreaseEarningsCoverageRatioDueToChangeInIncomeBeforeBorrowingCostsAndIncomeTaxes
37	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCostsInterestCoverageRatio (label)	Concept (Pure)	duration		tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCostsInterestCoverageRatio
38	Increase (decrease) in EBITDA - excluding restructuring and other costs interest coverage ratio due to an increase (decrease) in EBITDA	Concept (Pure)	duration		tu:IncreaseDecreaseEbitdaExcludingRestructuringAndOtherCostsInterestCoverageRatioDueToChangeInEbitda
39	Dividend payout ratio	Abstract	duration		tu:DividendPayoutRatioAbstract
40	Dividend payout ratio, (as a per cent)	Concept (Percent)	duration		tu:DividendPayOutRatio
41	Dividend payout ratio of adjusted net earnings, (as a per cent)	Concept (Percent)	duration		tu:DividendPayoutRatioAdjustedNetEarnings
42	Target dividend payout ratio, (as a per cent)	Concept (Percent)	duration		tu:DividendPayOutRatioTarget
43	Calculation of adjusted net earnings attributable to Common Shares	Abstract	duration		tu:CalculationOfAdjustedNetEarningsAttributableToCommonSharesAbstract
44	Net income attributable to Common Shares	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossAttributableToOwnersOfParent
45	Gain and net equity income related to real estate redevelopment project, after income taxes	Concept (Monetary)	duration	credit	tu:GainAndNetEquityIncomeRealEstateDevelopmentAfterTax
46	Gain on exchange of wireless spectrum licences, after income taxes	Concept (Monetary)	duration	credit	tu:GainExchangeWirelessSpectrumLicencesAfterTax
47	Provisions related to business combinations, after income taxes	Concept (Monetary)	duration	credit	tu:BusinessAcquisitionRelatedProvisionAfterTax
48	Immediately vesting transformative compensation expense, after income taxes	Concept (Monetary)	duration	debit	tu:ImmediatelyVestingTransformativeCompensationExpenseAfterTax
49	Income tax-related adjustments	Concept (Monetary)	duration	debit	tu:IncomeTaxRelatedAdjustmentsToNetIncomeAttributableToCommonShares
50	Adjusted net earnings attributable to Common Shares	Concept (Monetary)	duration	credit	tu:AdjustedNetEarningsAttributableToCommonShares

Model Structure
Network	40401 - Disclosure - financial instruments - Credit risk (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsCreditRiskDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	financial instruments	Abstract	duration	ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of financial assets [table]	Table	duration	ifrs-full:DisclosureOfFinancialAssetsTable
3	Classes of financial assets [axis]	Axis	duration	ifrs-full:ClassesOfFinancialAssetsAxis
4	Financial assets, class [member]	Member	duration	ifrs-full:FinancialAssetsMember
5	Cash and temporary investments, net	Member	duration	tu:CashAndTemporaryInvestmentsNetMember
6	Customer accounts receivable	Member	duration	ifrs-full:TradeReceivablesMember
7	Derivatives	Member	duration	ifrs-full:DerivativesMember
8	Credit risk	LineItems	duration	ifrs-full:DisclosureOfFinancialAssetsLineItems
9	Maximum exposure (excluding income tax effects) to credit risk	Concept (Monetary)	instant	ifrs-full:MaximumExposureToCreditRisk

Model Structure
Network	40402 - Disclosure - financial instruments - Accounts receivable (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsAccountsReceivableDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of financial assets [table]	Table	duration		ifrs-full:DisclosureOfFinancialAssetsTable
3	Classes of financial assets [axis]	Axis	duration		ifrs-full:ClassesOfFinancialAssetsAxis
4	Financial assets, class [member]	Member	duration		ifrs-full:FinancialAssetsMember
5	Customer accounts receivable	Member	duration		ifrs-full:TradeReceivablesMember
6	Credit risk	LineItems	duration		ifrs-full:DisclosureOfFinancialAssetsLineItems
7	Weighted average age of receivables	Concept (Duration)	duration		tu:WeightedAverageAgeOfReceivables
8	Weighted average age of past-due receivables	Concept (Duration)	duration		tu:WeightedAverageAgeOfPastDueReceivables
9	ifrs-full:FinancialAssets (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:FinancialAssets
10	Written off amounts charged to allowance for doubtful accounts still subject to enforcement	Concept (Monetary)	duration	debit	tu:WrittenOffAmountsChargedToAllowanceForDoubtfulAccountsFinancialAssetsStillSubjectToEnforcement
11	Summary of activity related to allowance for doubtful accounts	Abstract	duration		ifrs-full:ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract
12	Balance, beginning of period	Concept (Monetary)	instant	credit	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
13	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
14	Additions (doubtful accounts expense)	Concept (Monetary)	duration		ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
15	Accounts written off, net of recoveries	Concept (Monetary)	duration	debit	ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
16	Other	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughOtherChangesAllowanceAccountForCreditLossesOfFinancialAssets
17	Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]	Axis	duration		ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
18	Carrying amount [member]	Member	duration		ifrs-full:CarryingAmountMember
19	Cost/Gross amount	Member	duration		ifrs-full:GrossCarryingAmountMember
20	Allowance for doubtful accounts	Member	duration		ifrs-full:AccumulatedImpairmentMember
21	Past billing date status [Axis]	Axis	duration		tu:PastBillingDateStatusAxis
22	Past billing date status [Member]	Member	duration		tu:PastBillingDateStatusMember
23	Less than 30 days past billing date	Member	duration		ifrs-full:CurrentMember
24	30-60 days past billing date	Member	duration		ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
25	61-90 days past billing date	Member	duration		ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
26	More than 90 days past billing date	Member	duration		ifrs-full:LaterThanThreeMonthsMember

Model Structure
Network	40403 - Disclosure - financial instruments - Liquidity risk (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsLiquidityRiskDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of financial liabilities [table]	Table	duration		ifrs-full:DisclosureOfFinancialLiabilitiesTable
3	Types of risks [axis]	Axis	duration		ifrs-full:TypesOfRisksAxis
4	Risks [member]	Member	duration		ifrs-full:TypesOfRisksMember
5	Currency risk related to long-term debt	Member	duration		tu:CurrencyRiskLongTermDebtMember
6	Currency risk related to foreign currency transactions	Member	duration		tu:CurrencyRiskForeignCurrencyTransactionsMember
7	Maturity [axis]	Axis	duration		ifrs-full:MaturityAxis
8	Aggregated time bands [member]	Member	duration		ifrs-full:AggregatedTimeBandsMember
9	First year	Member	duration		ifrs-full:NotLaterThanOneYearMember
10	2 years hence	Member	duration		ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
11	3 years hence	Member	duration		ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
12	4 years hence	Member	duration		ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
13	5 years hence	Member	duration		ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
14	Thereafter	Member	duration		ifrs-full:LaterThanFiveYearsMember
15	Classes of financial liabilities [axis]	Axis	duration		ifrs-full:ClassesOfFinancialLiabilitiesAxis
16	Financial liabilities, class [member]	Member	duration		ifrs-full:FinancialLiabilitiesMember
17	Debt or equity securities pursuant to a shelf prospectus expiring April, 2018	Member	duration		tu:DebtAndEquitySecuritiesShelfProspectusOneMember
18	Debt or equity securities pursuant to a shelf prospectus expiring December, 2016	Member	duration		tu:DebtAndEquitySecuritiesShelfProspectusTwoMember
19	Non-interest bearing financial liabilities	Member	duration		tu:NonInterestBearingFinancialLiabilitiesMember
20	Short-term borrowings	Member	duration		ifrs-full:ShorttermBorrowingsMember
21	Construction credit facilities commitment	Member	duration		tu:ConstructionCreditFacilitiesCommitmentMember
22	Long-term debt	Member	duration		ifrs-full:LongtermBorrowingsMember
23	Currency swap agreement	Member	duration		ifrs-full:CurrencySwapContractMember
24	Composite long-term debt	Member	duration		tu:LongTermDebtNetOfDerivativeImpactMember
25	Other	Member	duration		tu:OtherDerivativesMember
26	Liquidity risk	LineItems	duration		ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
27	Debt or equity securities that may be offered pursuant to a shelf prospectus	Concept (Monetary)	instant	credit	tu:ShelfProspectusSecuritiesAvailableForIssuance
28	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
29	tu:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchangedDerivativeReceive (negatedLabel)	Concept (Monetary)	instant	debit	tu:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchangedDerivativeReceive
30	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged
31	Contractual maturities, derivative liabilities	Concept (Monetary)	instant	credit	ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows
32	Total	Concept (Monetary)	instant	credit	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows

Model Structure
Network	40404 - Disclosure - financial instruments - Currency risk (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsCurrencyRiskDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	financial instruments	Abstract	duration	ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of nature and extent of risks arising from financial instruments [table]	Table	duration	ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
3	Range [axis]	Axis	duration	ifrs-full:RangeAxis
4	Ranges [member]	Member	duration	ifrs-full:RangesMember
5	Maximum	Member	duration	ifrs-full:TopOfRangeMember
6	Minimum	Member	duration	ifrs-full:BottomOfRangeMember
7	Currency [Axis]	Axis	duration	us-gaap:CurrencyAxis
8	All Currencies [Domain]	Member	duration	currency:AllCurrenciesDomain
9	U.S. Dollars	Member	duration	currency:USD
10	Currency risk	LineItems	duration	ifrs-full:DisclosureOfDetailedInformationAboutHedgingInstrumentsLineItems
11	Exposure to exchange rate fluctuations that is hedged (as a percent)	Concept (Percent)	duration	tu:CurrencyRiskManagementExchangeRateHedgedRange

Model Structure
Network	40406 - Disclosure - financial instruments - Market risks (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsMarketRisksDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of nature and extent of risks arising from financial instruments [table]	Table	duration		ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
3	Currency [Axis]	Axis	duration		us-gaap:CurrencyAxis
4	All Currencies [Domain]	Member	duration		currency:AllCurrenciesDomain
5	U.S. Dollars	Member	duration		currency:USD
6	Components of equity [axis]	Axis	duration		ifrs-full:ComponentsOfEquityAxis
7	Equity [member]	Member	duration		ifrs-full:EquityMember
8	Equity contributed, Common shares	Member	duration		ifrs-full:IssuedCapitalMember
9	Types of risks [axis]	Axis	duration		ifrs-full:TypesOfRisksAxis
10	Risks [member]	Member	duration		ifrs-full:TypesOfRisksMember
11	Currency risk	Member	duration		ifrs-full:CurrencyRiskMember
12	Other price risk arising from share-based compensation costs	Member	duration		ifrs-full:OtherPriceRiskMember
13	Market risks	LineItems	duration		ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
14	Percentage of reasonably possible changes in market risk variable	Concept (Percent)	duration		tu:SensitivityAnalysisPercentageOfReasonablyPossibleChangeInRiskVariable
15	Net income sensitivity to increase in risk variable	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleIncreaseInRiskVariable
16	Other comprehensive income sensitivity to increase in risk variable	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable
17	Comprehensive income sensitivity to increase in risk variable	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable
18	Net income sensitivity to decrease in risk variable	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleDecreaseInRiskVariable
19	Other comprehensive income sensitivity to decrease in risk variable	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable
20	Comprehensive income sensitivity to decrease in risk variable	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable
21	Data period for share price volatility	Concept (Duration)	duration		tu:SensitivityAnalysisPeriodOfDataForVolatilityInSharePrice
22	Share price volatility for sensitivity analysis (as a per cent)	Concept (Percent)	duration		tu:SensitivityAnalysisSharePriceVolatility

Model Structure
Network	40407 - Disclosure - financial instruments - Fair values (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsFairValuesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of detailed information about financial instruments [table]	Table	duration		ifrs-full:DisclosureOfFinancialInstrumentsTable
3	Classes of financial liabilities [axis]	Axis	duration		ifrs-full:ClassesOfFinancialLiabilitiesAxis
4	Financial liabilities, class [member]	Member	duration		ifrs-full:FinancialLiabilitiesMember
5	Foreign exchange derivatives	Member	duration		tu:IfrsForeignExchangeContractMember
6	Share-based compensation derivatives	Member	duration		tu:IfrsEquitySwapMember
7	Starting interest rate derivatives	Member	duration		tu:StartingInterestRateDerivativesMember
8	Levels of fair value hierarchy [axis]	Axis	duration		ifrs-full:LevelsOfFairValueHierarchyAxis
9	All levels of fair value hierarchy [member]	Member	duration		ifrs-full:AllLevelsOfFairValueHierarchyMember
10	Significant other observable inputs	Member	duration		ifrs-full:Level2OfFairValueHierarchyMember
11	Measurement [axis]	Axis	duration		ifrs-full:MeasurementAxis
12	Aggregated measurement [member]	Member	duration		ifrs-full:AggregatedMeasurementMember
13	Measured at fair value on a recurring basis	Member	duration		ifrs-full:RecurringFairValueMeasurementMember
14	Measured at amortized cost but fair value disclosed	Member	duration		ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
15	Carrying value	Member	duration		tu:ReportedAtOtherThanFairValueMember
16	Classes of financial assets [axis]	Axis	duration		ifrs-full:ClassesOfFinancialAssetsAxis
17	Financial assets, class [member]	Member	duration		ifrs-full:FinancialAssetsMember
18	Foreign exchange derivatives	Member	duration		tu:IfrsForeignExchangeContractMember
19	Share-based compensation derivatives	Member	duration		tu:IfrsEquitySwapMember
20	Available-for-sale portfolio investments	Member	duration		tu:LongTermInvestmentAvailableForSaleMember
21	Disclosure of detailed information about financial instruments	LineItems	duration		ifrs-full:DisclosureOfFinancialInstrumentsLineItems
22	Assets	Concept (Monetary)	instant	debit	ifrs-full:FinancialAssets
23	Assets at fair value	Concept (Monetary)	instant	debit	ifrs-full:FinancialAssetsAtFairValue
24	Liabilities	Concept (Monetary)	instant	credit	ifrs-full:FinancialLiabilities
25	Liabilities at fair value	Concept (Monetary)	instant	credit	ifrs-full:FinancialLiabilitiesAtFairValue
26	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent

Model Structure
Network	40408 - Disclosure - financial instruments - Derivatives (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsDerivativesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of detailed information about financial instruments [table]	Table	duration		ifrs-full:DisclosureOfFinancialInstrumentsTable
3	Disclosure of detailed information about financial instruments	LineItems	duration		ifrs-full:DisclosureOfFinancialInstrumentsLineItems
4	Maximum maturity date	Concept (String)	duration		tu:IfrsDerivativeInstrumentMaximumMaturityDate
5	Current Assets, Notional amount	Concept (Monetary)	instant	debit	tu:NotionalAmountCurrentDerivativeAssets
6	Current Assets, Fair value and carrying value	Concept (Monetary)	instant	debit	ifrs-full:CurrentDerivativeFinancialAssets
7	Price	Concept (Monetary)	duration		tu:DerivativeWeightedAveragePricePerUnit
8	Rate	Concept (Decimal)	duration		tu:DerivativeExchangeRate
9	ifrs-full:BorrowingsInterestRate (terseLabel)	Concept (Percent)	instant		ifrs-full:BorrowingsInterestRate
10	Debt instrument term	Concept (Duration)	duration		tu:IfrsDebtInstrumentTerm
11	Other Long-Term Assets, Notional amount	Concept (Monetary)	instant	debit	tu:NotionalAmountNoncurrentDerivativeAssets
12	Other Long-Term Assets, Fair value and carrying value	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentDerivativeFinancialAssets
13	Current Liabilities, Notional amount	Concept (Monetary)	instant	credit	tu:NotionalAmountCurrentDerivativeLiabilities
14	Current Liabilities, Fair value and carrying value	Concept (Monetary)	instant	credit	ifrs-full:CurrentDerivativeFinancialLiabilities
15	Other Long-Term Liabilities, Notional amount	Concept (Monetary)	instant	credit	tu:NotionalAmountNoncurrentDerivativeLiabilities
16	Other Long-Term Liabilities, Fair value and carrying value	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentDerivativeFinancialLiabilities
17	Hedge ratio	Concept (Percent)	duration		tu:IfrsHedgeRatioPercentage
18	Classes of financial instruments [axis]	Axis	duration		ifrs-full:ClassesOfFinancialInstrumentsAxis
19	Financial instruments, class [member]	Member	duration		ifrs-full:ClassesOfFinancialInstrumentsMember
20	Derivatives	Member	duration		ifrs-full:DerivativesMember
21	Current Asset derivatives	Member	duration		tu:DerivativeAssetsCurrentMember
22	Other Long-Term Asset derivatives	Member	duration		tu:OtherLongTermAssetDerivativesMember
23	Current Liabilities derivatives	Member	duration		tu:DerivativeLiabilitiesCurrentMember
24	Other Long-Term Liabilities derivatives	Member	duration		tu:OtherLongTermLiabilitiesDerivativesMember
25	Types of risks [axis]	Axis	duration		ifrs-full:TypesOfRisksAxis
26	Risks [member]	Member	duration		ifrs-full:TypesOfRisksMember
27	Currency risk related to long-term debt	Member	duration		tu:CurrencyRiskLongTermDebtMember
28	Other price risk arising from share-based compensation costs	Member	duration		ifrs-full:OtherPriceRiskMember
29	Currency risk related to purchases	Member	duration		tu:CurrencyRiskPurchaseTransactionsMember
30	Currency risk related to revenues	Member	duration		tu:CurrencyRiskRevenuesMember
31	Interest rate risk	Member	duration		ifrs-full:InterestRateRiskMember
32	Categories of financial assets [axis]	Axis	duration		ifrs-full:CategoriesOfFinancialAssetsAxis
33	Financial assets, category [member]	Member	duration		ifrs-full:FinancialAssetsCategoryMember
34	HFT	Member	duration		ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember
35	Categories of financial liabilities [axis]	Axis	duration		ifrs-full:CategoriesOfFinancialLiabilitiesAxis
36	Financial liabilities, category [member]	Member	duration		ifrs-full:FinancialLiabilitiesCategoryMember
37	HFT	Member	duration		ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember
38	Types of hedges [axis]	Axis	duration		ifrs-full:TypesOfHedgesAxis
39	Hedges [member]	Member	duration		ifrs-full:TypesOfHedgesMember
40	HFH	Member	duration		ifrs-full:CashFlowHedgesMember
41	Currency [Axis]	Axis	duration		us-gaap:CurrencyAxis
42	All Currencies [Domain]	Member	duration		currency:AllCurrenciesDomain
43	U.S. Dollars	Member	duration		currency:USD
44	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
45	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
46	Short-term borrowings	Member	duration		ifrs-full:ShorttermBorrowingsMember
47	GOC 2.14% 10-year term note	Member	duration		tu:GOC2.14TenYearTermNoteMember

Model Structure
Network	40409 - Disclosure - financial instruments - Derivative gains and losses (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsDerivativeGainsAndLossesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financial instruments	Abstract	duration		ifrs-full:DisclosureOfFinancialInstrumentsAbstract
2	Disclosure of detailed information about financial instruments [table]	Table	duration		ifrs-full:DisclosureOfFinancialInstrumentsTable
3	Disclosure of detailed information about financial instruments	LineItems	duration		ifrs-full:DisclosureOfFinancialInstrumentsLineItems
4	Ineffective portion of derivative instruments classified as cash flow hedging items	Concept (Monetary)	duration	credit	ifrs-full:GainsLossesOnIneffectivenessOfCashFlowHedgesRecognisedInProfitOrLoss
5	Amount of gain (loss) recognized in other comprehensive income (effective portion)	Concept (Monetary)	duration	credit	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
6	Gain (loss) reclassified from other comprehensive income to income (effective portion)	Concept (Monetary)	duration	debit	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax
7	Gain (loss) recognized in income on derivatives	Concept (Monetary)	duration	credit	ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading
8	Classes of financial instruments [axis]	Axis	duration		ifrs-full:ClassesOfFinancialInstrumentsAxis
9	Financial instruments, class [member]	Member	duration		ifrs-full:ClassesOfFinancialInstrumentsMember
10	Derivatives	Member	duration		ifrs-full:DerivativesMember
11	Derivatives held for hedging	Member	duration		tu:DerivativesHeldForHedgingMember
12	Derivatives held for trading	Member	duration		tu:DerivativesHeldForTradingMember
13	Types of risks [axis]	Axis	duration		ifrs-full:TypesOfRisksAxis
14	Risks [member]	Member	duration		ifrs-full:TypesOfRisksMember
15	Currency risk	Member	duration		ifrs-full:CurrencyRiskMember
16	Currency risk related to purchases	Member	duration		tu:CurrencyRiskPurchaseTransactionsMember
17	Currency risk related to long-term debt	Member	duration		tu:CurrencyRiskLongTermDebtMember
18	Other price risk arising from share-based compensation costs	Member	duration		ifrs-full:OtherPriceRiskMember
19	Currency [Axis]	Axis	duration		us-gaap:CurrencyAxis
20	All Currencies [Domain]	Member	duration		currency:AllCurrenciesDomain
21	U.S. Dollars	Member	duration		currency:USD
22	IFRS Income Statement Location [Axis]	Axis	duration		tu:IfrsIncomeStatementLocationAxis
23	IFRS Income Statement Location [Member]	Member	duration		tu:IfrsIncomeStatementLocationMember
24	Goods and services purchased	Member	duration		tu:GoodsAndServicesPurchasedMember
25	Employee benefits expense	Member	duration		tu:EmployeeBenefitsExpenseMember
26	Financing costs	Member	duration		tu:FinancingCostsMember

Model Structure
Network	40501 - Disclosure - segment information - Operating revenue (Details) (http://www.telus.com/role/DisclosureSegmentInformationOperatingRevenueDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	segment information	Abstract	duration		ifrs-full:DisclosureOfOperatingSegmentsAbstract
2	Disclosure of operating segments [table]	Table	duration		ifrs-full:DisclosureOfOperatingSegmentsTable
3	Segment consolidation items [axis]	Axis	duration		ifrs-full:SegmentConsolidationItemsAxis
4	Entity's total for segment consolidation items [member]	Member	duration		ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
5	Consolidated	Member	duration		ifrs-full:OperatingSegmentsMember
6	Eliminations	Member	duration		ifrs-full:EliminationOfIntersegmentAmountsMember
7	Segments [axis]	Axis	duration		ifrs-full:SegmentsAxis
8	Segments [member]	Member	duration		ifrs-full:SegmentsMember
9	Wireless	Member	duration		tu:WirelessMember
10	Wireline	Member	duration		tu:WirelineMember
11	Disclosure of operating segments	LineItems	duration		ifrs-full:DisclosureOfOperatingSegmentsLineItems
12	Operating revenues	Abstract	duration		tu:OperatingRevenuesAbstract
13	Service	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromRenderingOfTelecommunicationServices
14	Equipment	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromSaleOfGoods
15	Revenues arising from contracts with customers	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromContractsWithCustomers
16	ifrs-full:OtherRevenue (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherRevenue
17	Total external revenues	Concept (Monetary)	duration	credit	tu:RevenueBeforeIntersegment
18	Intersegment revenues	Concept (Monetary)	duration	credit	tu:IntersegmentRevenue
19	ifrs-full:Revenue (totalLabel)	Concept (Monetary)	duration	credit	ifrs-full:Revenue
20	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (terseLabel)	Concept (Monetary)	duration	credit	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization
21	CAPEX, excluding spectrum licenses	Concept (Monetary)	duration	credit	tu:CapexExcludingSpectrum

Model Structure
Network	40502 - Disclosure - segment information - Income before income taxes (Details) (http://www.telus.com/role/DisclosureSegmentInformationIncomeBeforeIncomeTaxesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	segment information	Abstract	duration		ifrs-full:DisclosureOfOperatingSegmentsAbstract
2	Income before income taxes	Abstract	duration		us-gaap:SegmentReportingInformationProfitLossAbstract
3	ifrs-full:Revenue (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:Revenue
4	Goods and services purchased	Concept (Monetary)	duration	debit	tu:GoodsAndServicesPurchased
5	ifrs-full:EmployeeBenefitsExpense (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:EmployeeBenefitsExpense
6	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (terseLabel)	Concept (Monetary)	duration	credit	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization
7	Depreciation	Concept (Monetary)	duration		ifrs-full:DepreciationPropertyPlantAndEquipment
8	Amortization	Concept (Monetary)	duration		ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
9	ifrs-full:ProfitLossFromOperatingActivities (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossFromOperatingActivities
10	ifrs-full:FinanceCosts (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:FinanceCosts
11	INCOME BEFORE INCOME TAXES	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossBeforeTax

Model Structure
Network	40601 - Disclosure - revenue from contracts with customers (Details) (http://www.telus.com/role/DisclosureRevenueFromContractsWithCustomersDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	revenue from contracts with customers	Abstract	duration		ifrs-full:TradeAndOtherReceivablesAbstract
2	Customer accounts receivable	Concept (Monetary)	instant	debit	ifrs-full:CurrentReceivablesFromContractsWithCustomers
3	Accrued receivables - customer	Concept (Monetary)	instant	debit	ifrs-full:CurrentAccruedIncome
4	Allowance for doubtful accounts	Concept (Monetary)	instant	credit	tu:IfrsAllowanceForDoubtfulAccountsReceivable
5	Total	Concept (Monetary)	instant	debit	tu:CurrentReceivablesFromContractsWithCustomersNet
6	Accrued receivables - other	Concept (Monetary)	instant	debit	ifrs-full:OtherCurrentReceivables
7	Total	Concept (Monetary)	instant	debit	ifrs-full:TradeAndOtherCurrentReceivables

Model Structure
Network	40701 - Disclosure - other operating income (Details) (http://www.telus.com/role/DisclosureOtherOperatingIncomeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other operating income	Abstract	duration		tu:OtherOperatingIncomeAbstract
2	Government assistance, including deferral account amortization	Concept (Monetary)	duration	credit	tu:GovernmentAssistance
3	Investment income, gain on disposal of assets and other	Concept (Monetary)	duration	credit	tu:OtherOperatingIncomeInvestmentIncomeGainOnDisposalsOfAssetsAndOther
4	tu:OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable (terseLabel)	Concept (Monetary)	duration	credit	tu:OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable
5	Interest income	Concept (Monetary)	duration	credit	tu:InterestIncomeRealEstateJointVentures
6	Total	Concept (Monetary)	duration	credit	ifrs-full:OtherRevenue
7	Subsidy receipts	Concept (Monetary)	duration	credit	tu:SubsidyReceipts
8	Contribution expense rate	Concept (Percent)	duration		tu:ContributionExpenseRate
9	Interim contribution expense rate	Concept (Percent)	duration		tu:InterimContributionExpenseRate
10	Contributions to the central fund	Concept (Monetary)	duration	debit	tu:ContributionsToCentralFund
11	Quebec employment positions tax credit	Concept (Monetary)	duration	credit	tu:QuebecEmploymentIncomeTaxCredits

Model Structure
Network	40801 - Disclosure - employee benefits expense (Details) (http://www.telus.com/role/DisclosureEmployeeBenefitsExpenseDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee benefits expense	Abstract	duration		ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
2	Employee benefits expense [Table]	Table	duration		tu:EmployeeBenefitsExpenseTable
3	Classes Of Employee Benefits [Axis]	Axis	duration		tu:ClassesOfEmployeeBenefitsAxis
4	Classes of employee benefits	Member	duration		tu:ClassesOfEmployeeBenefitsMember
5	Traditional	Member	duration		tu:TraditionalMember
6	Transformative compensation	Member	duration		tu:TransformativeCompensationMember
7	IFRS Income Statement Location [Axis]	Axis	duration		tu:IfrsIncomeStatementLocationAxis
8	IFRS Income Statement Location [Member]	Member	duration		tu:IfrsIncomeStatementLocationMember
9	Restructuring	Member	duration		tu:RestructuringCostsMember
10	ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems (label)	LineItems	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
11	Employee benefits expense - gross	Abstract	duration		tu:EmployeeBenefitsExpenseAbstract
12	Wages and salaries	Concept (Monetary)	duration	debit	ifrs-full:WagesAndSalaries
13	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
14	Pensions - defined benefit	Concept (Monetary)	duration	debit	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
15	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
16	Other defined benefits	Concept (Monetary)	duration	debit	tu:OtherDefinedBenefits
17	Restructuring costs	Concept (Monetary)	duration	debit	tu:ExpenseOfRestructuringActivitiesEmployeeBenefits
18	Other	Concept (Monetary)	duration	debit	tu:OtherProvisionsEmployeeBenefits
19	Total	Concept (Monetary)	duration	debit	tu:EmployeeBenefitsIncludingRestructuring
20	Capitalized internal labour costs	Abstract	duration		tu:CapitalizedInternalLabourCostsAbstract
21	Property, plant and equipment	Concept (Monetary)	duration	debit	tu:CapitalizedPropertyPlantEquipment
22	Intangible assets subject to amortization	Concept (Monetary)	duration	debit	tu:CapitalizedIntangibleAssetsSubjectToAmortization
23	Total	Concept (Monetary)	duration	debit	tu:CapitalizedInternalLabour
24	Net	Concept (Monetary)	duration	debit	ifrs-full:EmployeeBenefitsExpense

Model Structure
Network	40901 - Disclosure - financing costs (Details) (http://www.telus.com/role/DisclosureFinancingCostsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	financing costs	Abstract	duration		tu:FinancingCostsAbstract
2	Interest expense	Abstract	duration		ifrs-full:InterestCostsAbstract
3	Interest on long-term debt - gross	Concept (Monetary)	duration	debit	tu:InterestExpenseOnBorrowingsLongTermGross
4	Capitalized long-term debt interest	Concept (Monetary)	duration	credit	tu:InterestExpenseLongTermDebtCapitalizedToIndefiniteLivedIntangibleAssets
5	Interest on long-term debt - net	Concept (Monetary)	duration	debit	tu:InterestExpenseOnBorrowingsLongTermNet
6	Interest on short-term borrowings and other	Concept (Monetary)	duration	debit	tu:InterestExpenseOnBorrowingsAndOtherShortTerm
7	Interest accretion on provisions	Concept (Monetary)	duration	debit	tu:InterestExpenseProvisions
8	Total	Concept (Monetary)	duration	debit	ifrs-full:InterestExpenseOnBorrowings
9	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (negatedLabel)	Concept (Monetary)	duration	credit	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
10	Foreign exchange	Concept (Monetary)	duration	credit	ifrs-full:TradingIncomeExpenseOnForeignExchangeContracts
11	Total	Concept (Monetary)	duration	debit	ifrs-full:InterestExpense
12	Interest income	Concept (Monetary)	duration	credit	ifrs-full:RevenueFromInterest
13	Net	Concept (Monetary)	duration	debit	ifrs-full:FinanceCosts
14	Capitalized interest, Indefinite Lived Intangible Assets (as a per cent)	Concept (Percent)	duration		ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation

Model Structure
Network	41001 - Disclosure - income taxes - Expense composition (Details) (http://www.telus.com/role/DisclosureIncomeTaxesExpenseCompositionDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	income taxes	Abstract	duration		ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2	Current income tax expense	Abstract	duration		ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriodsAbstract
3	For the current reporting period	Concept (Monetary)	duration	debit	ifrs-full:CurrentTaxExpenseIncome
4	Adjustments recognized in the current period for income taxes of prior periods	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
5	Total	Concept (Monetary)	duration	debit	ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
6	Deferred income tax expense (recovery)	Abstract	duration		ifrs-full:DeferredTaxExpenseIncomeAbstract
7	Arising from the origination and reversal of temporary differences	Concept (Monetary)	duration	debit	ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
8	Revaluation of deferred income tax liability to reflect future statutory income tax rates	Concept (Monetary)	duration	debit	ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
9	Adjustments recognized in the current period for income taxes of prior periods	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods
10	Total	Concept (Monetary)	duration		ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
11	Income taxes	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxExpenseContinuingOperations

Model Structure
Network	41002 - Disclosure - income taxes - Rate reconciliations (Details) (http://www.telus.com/role/DisclosureIncomeTaxesRateReconciliationsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	income taxes	Abstract	duration		ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2	Reconciliation of effective tax rate	Abstract	duration		ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
3	Income taxes calculated at applicable statutory rates	Concept (Monetary)	duration	debit	ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
4	Revaluation of deferred income tax liability to reflect future statutory income tax rates	Concept (Monetary)	duration	debit	ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
5	Adjustments recognized in the current period for income taxes of prior periods	Concept (Monetary)	duration	debit	ifrs-full:TaxEffectFromChangeInTaxRate
6	Other	Concept (Monetary)	duration	debit	ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
7	Income taxes	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxExpenseContinuingOperations
8	Reconciliation of effective tax rate (as a per cent)	Concept (String)	duration		tu:ReconciliationOfApplicableTaxRatesAbstract
9	Applicable statutory rate (as a per cent)	Concept (Percent)	duration		ifrs-full:ApplicableTaxRate
10	Tax rate effect for revaluation of deferred income tax liability to reflect future income tax rates (as a per cent)	Concept (Percent)	duration		ifrs-full:TaxRateEffectFromChangeInTaxRate
11	Tax rate effect for adjustments recognized in the current period for income taxes of prior periods (as a per cent)	Concept (Percent)	duration		ifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
12	Tax rate effect for other (as a per cent)	Concept (Percent)	duration		ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
13	Tax rate for Income tax expense per Consolidated statements of income and other comprehensive income (as a per cent)	Concept (Percent)	duration		ifrs-full:AverageEffectiveTaxRate

Model Structure
Network	41003 - Disclosure - income taxes - Temporary differences (Details) (http://www.telus.com/role/DisclosureIncomeTaxesTemporaryDifferencesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	income taxes	Abstract	duration		ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2	Disclosure of temporary difference, unused tax losses and unused tax credits [table]	Table	duration		ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
3	Temporary difference, unused tax losses and unused tax credits [axis]	Axis	duration		ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
4	Temporary difference, unused tax losses and unused tax credits [member]	Member	duration		ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
5	Property, plant, and equipment and intangible assets subject to amortization	Member	duration		tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember
6	Intangible assets with indefinite lives	Member	duration		ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember
7	Partnership income unallocated for income tax purposes	Member	duration		tu:PartnershipIncomeUnallocatedForIncomeTaxPurposesMember
8	Net pension and share-based compensation amounts	Member	duration		tu:NetPensionAndSharebasedCompensationAmountsMember
9	Reserves not currently deductible	Member	duration		tu:ReservesNotCurrentlyDeductibleMember
10	Losses available to be carried forward	Member	duration		ifrs-full:UnusedTaxLossesMember
11	Other	Member	duration		ifrs-full:OtherTemporaryDifferencesMember
12	ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
13	Reconciliation of temporary differences	Abstract	duration		ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract
14	Balance at beginning of period	Concept (Monetary)	instant	credit	ifrs-full:DeferredTaxLiabilityAsset
15	ifrs-full:DeferredTaxLiabilityAsset (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:DeferredTaxLiabilityAsset
16	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (terseLabel)	Concept (Monetary)	duration		ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
17	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (terseLabel)	Concept (Monetary)	duration		ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
18	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (negatedLabel)	Concept (Monetary)	duration		ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
19	Deferred tax assets and liabilities	Abstract	duration		ifrs-full:NetDeferredTaxAssetsAndLiabilitiesAbstract
20	ifrs-full:DeferredTaxLiabilities (label)	Concept (Monetary)	instant	credit	ifrs-full:DeferredTaxLiabilities
21	ifrs-full:DeferredTaxAssets (negatedLabel)	Concept (Monetary)	instant	debit	ifrs-full:DeferredTaxAssets

Model Structure
Network	41004 - Disclosure - income taxes - Other (Details) (http://www.telus.com/role/DisclosureIncomeTaxesOtherDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	income taxes	Abstract	duration		ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
2	Disclosure of temporary difference, unused tax losses and unused tax credits [table]	Table	duration		ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
3	Temporary difference, unused tax losses and unused tax credits [axis]	Axis	duration		ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
4	Temporary difference, unused tax losses and unused tax credits [member]	Member	duration		ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
5	Capital loss carry-forward	Member	duration		tu:NetCapitalLossCarryforwardMember
6	Investment Tax Credits	Member	duration		ifrs-full:UnusedTaxCreditsMember
7	Other	LineItems	duration		ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
8	Tax benefits recognized	Concept (Monetary)	duration	credit	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense
9	Scenario [Axis]	Axis	duration		tu:ScenarioAxis
10	Scenario [Member]	Member	duration		tu:ScenarioMember
11	Forecast	Member	duration		tu:ForecastScenarioMember
12	Balance Sheet Location [Axis]	Axis	duration		tu:IfrsBalanceSheetLocationAxis
13	Balance Sheet Location [Member]	Member	duration		tu:IfrsBalanceSheetLocationMember
14	Property, plant, and equipment and/or intangible assets	Member	duration		tu:PropertyPlantAndEquipmentAndOrIntangibleAssetsMember

Model Structure
Network	41101 - Disclosure - other comprehensive income (Details) (http://www.telus.com/role/DisclosureOtherComprehensiveIncomeDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other comprehensive income	Abstract	duration		ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemAbstract
2	Disclosure of analysis of other comprehensive income by item [table]	Table	duration		ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemTable
3	Components of equity [axis]	Axis	duration		ifrs-full:ComponentsOfEquityAxis
4	Equity [member]	Member	duration		ifrs-full:EquityMember
5	Accumulated other comprehensive income	Member	duration		ifrs-full:AccumulatedOtherComprehensiveIncomeMember
6	Common equity	Member	duration		ifrs-full:EquityAttributableToOwnersOfParentMember
7	Non-controlling interests	Member	duration		ifrs-full:NoncontrollingInterestsMember
8	Types of risks [axis]	Axis	duration		ifrs-full:TypesOfRisksAxis
9	Risks [member]	Member	duration		ifrs-full:TypesOfRisksMember
10	Currency risk	Member	duration		ifrs-full:CurrencyRiskMember
11	Other price risk arising from share-based compensation costs	Member	duration		ifrs-full:OtherPriceRiskMember
12	Disclosure of analysis of other comprehensive income by item [line items]	LineItems	duration		ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemLineItems
13	Items that may subsequently be reclassified to income	Abstract	duration		ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTaxAbstract
14	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax
15	Income tax relating to changes in unrealized fair value of derivatives designated as cash flow hedges gains (losses) arising	Concept (Monetary)	duration	debit	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeNotReclassification
16	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax
17	Income tax relating to change in unrealized fair value of derivatives designated as cash flow hedges gains (losses) transferred to net income	Concept (Monetary)	duration	debit	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeReclassification
18	Accumulated change in unrealized fair value of derivatives designated as cash flow hedge balance beginning	Concept (Monetary)	instant	credit	ifrs-full:ReserveOfCashFlowHedges
19	ifrs-full:ReserveOfCashFlowHedges (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:ReserveOfCashFlowHedges
20	Changes in unrealized fair value of derivatives designated as cash flow hedges total, before tax	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges
21	Income tax relating to changes in unrealized fair value of derivatives designated as cash flow hedges total	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome
22	Changes in unrealized fair value of derivatives designated as cash flow hedges total, net	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
23	Accumulated foreign currency translation balance beginning	Concept (Monetary)	instant	credit	ifrs-full:ReserveOfExchangeDifferencesOnTranslation
24	ifrs-full:ReserveOfExchangeDifferencesOnTranslation (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:ReserveOfExchangeDifferencesOnTranslation
25	Cumulative foreign currency translation adjustment, before tax	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation
26	Cumulative foreign currency translation adjustment, net	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
27	Accumulated available-for-sale financial assets balance beginning	Concept (Monetary)	instant	credit	ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets
28	ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets
29	Change in unrealized fair value of available-for-sale financial assets, before tax	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets
30	Income tax related to change in unrealized fair value of available-for-sale financial assets	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome
31	Change in unrealized fair value of available-for-sale financial assets, net	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets
32	Accumulated other comprehensive income balance beginning	Concept (Monetary)	instant	credit	ifrs-full:AccumulatedOtherComprehensiveIncome
33	ifrs-full:AccumulatedOtherComprehensiveIncome (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:AccumulatedOtherComprehensiveIncome
34	Accumulated other comprehensive income, before tax	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax
35	Income tax relating to accumulated other comprehensive income	Concept (Monetary)	duration	debit	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeAccumulatedOther
36	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
37	Item never reclassified to income	Abstract	duration		ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract
38	Employee defined benefit plans re-measurements, before tax	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
39	Income tax relating to employee defined benefit plan re-measurements	Concept (Monetary)	duration	debit	ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
40	Employee defined benefit plans re-measurements, net	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
41	Other comp. income, before tax	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncomeBeforeTax
42	Aggregated income tax relating to components of other comprehensive income	Concept (Monetary)	duration		ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
43	Total	Concept (Monetary)	duration	credit	ifrs-full:OtherComprehensiveIncome
44	ifrs-full:ComprehensiveIncomeAttributableToAbstract (label)	Abstract	duration		ifrs-full:ComprehensiveIncomeAttributableToAbstract
45	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	Concept (Monetary)	instant	credit	ifrs-full:AccumulatedOtherComprehensiveIncome

Model Structure
Network	41201 - Disclosure - per share amounts (Details) (http://www.telus.com/role/DisclosurePerShareAmountsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	per share amounts	Abstract	duration	tu:PerShareAmountsAbstract
2	Earnings per share [table]	Table	duration	ifrs-full:EarningsPerShareTable
3	Antidilutive Securities [Axis]	Axis	duration	tu:IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
4	Antidilutive Securities Name [Member]	Member	duration	tu:IfrsAntidilutiveSecuritiesNameMember
5	Share option awards	Member	duration	tu:IfrsEmployeeStockOptionMember
6	earnings per share amounts	LineItems	duration	ifrs-full:EarningsPerShareLineItems
7	Basic total weighted average number of Common Shares outstanding	Concept (Shares)	duration	ifrs-full:WeightedAverageShares
8	Effect of dilutive securities	Abstract	duration	tu:EffectOfDilutiveSecuritiesAbstract
9	Share option awards	Concept (Shares)	duration	ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
10	Diluted total weighted average number of Common Shares outstanding	Concept (Shares)	duration	ifrs-full:AdjustedWeightedAverageShares
11	Outstanding share option awards excluded in the computation of diluted net income per Common Share	Concept (Shares)	duration	tu:IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

Model Structure
Network	41301 - Disclosure - dividends per share (Details) (http://www.telus.com/role/DisclosureDividendsPerShareDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	dividends per share	Abstract	duration		tu:DividendsPerShareAbstract
2	Statement [Table]	Table	duration		us-gaap:StatementTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	Dividend Reinvestment and Share Purchase Plan	Member	duration		tu:DividendReinvestmentAndSharePurchasePlanMember
6	Range [axis]	Axis	duration		ifrs-full:RangeAxis
7	Ranges [member]	Member	duration		ifrs-full:RangesMember
8	Maximum	Member	duration		ifrs-full:TopOfRangeMember
9	Dividends per share	LineItems	duration		tu:IfrsDividendsPerShareLineItems
10	Dividends per share	Concept (Per-Share)	duration		ifrs-full:DividendsPaidOrdinarySharesPerShare
11	tu:DividendsDeclared (label)	Concept (Monetary)	duration	debit	tu:DividendsDeclared
12	Purchase plan discount	Concept (Percent)	duration		tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate
13	Dividend reinvestment in Common Shares	Concept (Monetary)	duration	debit	tu:DividendReinvestmentInCommonShares
14	Minimum optional cash payments and purchase of TELUS common shares at market price per transaction	Concept (Monetary)	duration	debit	tu:MinimumInvestmentInCommonSharesPerTransaction
15	Maximum annual optional cash payments and purchase of TELUS common shares at market price	Concept (Monetary)	duration	debit	tu:MaximumInvestmentInCommonShares

Model Structure
Network	41401 - Disclosure - share-based compensation - Expense (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationExpenseDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	share-based compensation	Abstract	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	Restricted stock units	Member	duration		tu:IfrsRestrictedStockUnitsRSUMember
6	Transformative compensation	Member	duration		tu:TransformativeCompensationMember
7	Employee share purchase plan	Member	duration		tu:EmployeeSharePurchasePlanMember
8	Share option awards	Member	duration		tu:IfrsEmployeeStockOptionMember
9	share-based compensation	LineItems	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
10	Employee benefits expense	Concept (Monetary)	duration	debit	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
11	Associated operating cash outflows	Concept (Monetary)	duration	credit	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment
12	Statement of cash flows adjustment	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForSharebasedPayments
13	Expense presented as share-based compensation	Concept (Monetary)	duration	debit	tu:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsPresentedAsSharebasedCompensation
14	Approximate transformative compensation paid in common shares (as a per cent)	Concept (Percent)	instant		tu:PercentageTransformativeCompensationLumpsumPaymentsPaidInCommonShares
15	Number of Common Shares held in the employee benefit plan trust	Concept (Shares)	duration		tu:CommonSharesHeldInEmployeeBenefitPlanTrust
16	Employer contributions to employee share purchase plan related to transformative compensation	Concept (Monetary)	duration	debit	tu:EmployeeSharePurchasePlanEmployerContributions
17	Cash inflows from cash-settled equity swap agreements	Concept (Monetary)	duration	debit	tu:CashInflowsReceiptsFromCashSettledEquitySwapAgreements
18	Income tax benefit arising from share-based compensation	Concept (Monetary)	duration	credit	tu:TaxBenefitFromSharebasedCompensationExpense

Model Structure
Network	41402 - Disclosure - share-based compensation - Restricted stock units (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationRestrictedStockUnitsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	share-based compensation	Abstract	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration	ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration	ifrs-full:SharebasedPaymentArrangementsMember
5	Restricted stock units	Member	duration	tu:IfrsRestrictedStockUnitsRSUMember
6	TELUS Corporation restricted stock units	Member	duration	tu:TelusCorporationRestrictedStockUnitsMember
7	Restricted stock units with performance condition	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsMember
8	Restricted stock units with total customer connections performance condition	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsCustomerConnectionMember
9	Restricted stock units with relative total shareholder return performance condition	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsShareholderReturnMember
10	Restricted stock units with only service conditions	Member	duration	tu:TelusCorporationServiceRestrictedStockUnitsMember
11	Restricted stock units without market performance conditions	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember
12	share-based compensation	LineItems	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
13	Nominal value (in number of equity shares)	Concept (Shares)	duration	tu:RestrictedStockUnitNominalValueInEquityShares
14	Typical vesting period	Concept (Duration)	duration	tu:VestingLifeOfShareBasedAwards
15	Variable payout (as a percent)	Concept (Percent)	instant	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement
16	Total customer connection payout weight (as a per cent)	Concept (Percent)	duration	tu:PayoutWeightOfCustomerConnectionPerformanceConditionInSharebasedPaymentArrangement
17	Relative total shareholder return payout weight (as a per cent)	Concept (Percent)	instant	tu:PayoutWeightOfShareholderReturnPerformanceConditionInSharebasedPaymentArrangement
18	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (terseLabel)	Concept (Decimal)	instant	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
19	Range [axis]	Axis	duration	ifrs-full:RangeAxis
20	Ranges [member]	Member	duration	ifrs-full:RangesMember
21	Maximum	Member	duration	ifrs-full:TopOfRangeMember
22	Minimum	Member	duration	ifrs-full:BottomOfRangeMember

Model Structure
Network	41403 - Disclosure - share-based compensation - TELUS Corp restricted stock units activity (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusCorpRestrictedStockUnitsActivityDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	share-based compensation	Abstract	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	Restricted stock units without market performance conditions	Member	duration		tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember
6	share-based compensation	LineItems	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
7	Number of restricted stock units - Non-vested	Abstract	duration		tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
8	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (periodStartLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
9	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (periodEndLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
10	Issued - initial award	Concept (Decimal)	duration		ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
11	In lieu of dividends	Concept (Decimal)	duration		tu:NumberOfInstrumentsOtherEquityInstrumentsIssuedInLieuOfDividends
12	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (negatedLabel)	Concept (Decimal)	duration		tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement
13	Forfeited and cancelled	Concept (Decimal)	duration		ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
14	Number of restricted stock units - vested	Abstract	duration		tu:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumberOfSharesRollForward
15	Outstanding, beginning of period	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
16	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (periodEndLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
17	In lieu dividends	Concept (Decimal)	duration		tu:NumberOfInstrumentsOtherEquityInstrumentsIssuedInLieuOfDividendsForVestedInstruments
18	Vested	Concept (Decimal)	duration		tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement
19	Settled in cash	Concept (Decimal)	duration		tu:NumberOfInstrumentsOtherEquityInstrumentsSettledInCash
20	Forfeited and cancelled	Concept (Decimal)	duration		tu:NumberOfVestedOtherEquityInstrumentsForfeitedAndCancelledInSharebasedPaymentArrangement
21	Weighted average grant-date fair value	Abstract	duration		tu:DisclosureOfInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValueRollForward
22	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (periodStartLabel)	Concept (Monetary)	instant	credit	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
23	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
24	Outstanding, beginning of period, vested	Concept (Monetary)	instant		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested
25	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (periodEndLabel)	Concept (Monetary)	instant		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested
26	Issued - initial award	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod
27	In lieu of dividends	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsIssuedInLieuOfDividendsInPeriod
28	Vested	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVestedInPeriod
29	Settled in cash	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsSettledInCashInPeriod
30	Forfeited and cancelled	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsForfeitedAndCancelledInPeriod

Model Structure
Network	41404 - Disclosure - share-based compensation - TELUS Corp restricted stock units vesting year (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusCorpRestrictedStockUnitsVestingYearDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	share-based compensation	Abstract	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration	ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration	ifrs-full:SharebasedPaymentArrangementsMember
5	Restricted stock units without market performance conditions	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember
6	Fix-cost restricted stock units	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsFixedCostMember
7	Variable-cost restricted stock units	Member	duration	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsVariableCostMember
8	share-based compensation	LineItems	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
9	Number of non-vested restricted stock units	Concept (Decimal)	instant	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
10	Fixed cost per restricted stock units	Concept (Monetary)	instant	tu:FixedCostPerOtherEquityInstrumentsOutstanding
11	Maturity [axis]	Axis	duration	ifrs-full:MaturityAxis
12	Aggregated time bands [member]	Member	duration	ifrs-full:AggregatedTimeBandsMember
13	First year	Member	duration	ifrs-full:NotLaterThanOneYearMember
14	2 years hence	Member	duration	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember

Model Structure
Network	41405 - Disclosure - share-based compensation - TELUS International (Cda) Inc. restricted stock units (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusInternationalCdaIncRestrictedStockUnitsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	share-based compensation	Abstract	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	TELUS International (Cda) Inc. restricted stock units	Member	duration		tu:TelusInternationalCdaIncRestrictedStockUnitsMember
6	TELUS International (Cda) Inc. Restricted Stock Units US Dollar Denominated	Member	duration		tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember
7	TELUS International (Cda) Inc. Restricted Stock Units Canadian Dollar Denominated	Member	duration		tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember
8	share-based compensation	LineItems	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
9	Variable payout (as a percent)	Concept (Percent)	instant		tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement
10	Number of restricted stock units - Non-vested	Abstract	duration		tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
11	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (periodStartLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
12	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (periodEndLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
13	Issued - initial award	Concept (Decimal)	duration		ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
14	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (negatedLabel)	Concept (Decimal)	duration		tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement
15	Forfeited and cancelled	Concept (Decimal)	duration		ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
16	Number of restricted stock units - vested	Abstract	duration		tu:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedNumberOfSharesRollForward
17	Outstanding, beginning of period	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
18	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (periodEndLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
19	Vested	Concept (Decimal)	duration		tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement
20	Forfeited and cancelled	Concept (Decimal)	duration		tu:NumberOfVestedOtherEquityInstrumentsForfeitedAndCancelledInSharebasedPaymentArrangement
21	Exercised	Concept (Decimal)	duration		tu:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement
22	Weighted average grant-date fair value	Abstract	duration		tu:DisclosureOfInstrumentsOtherThanOptionsWeightedAverageGrantDateFairValueRollForward
23	Grant-date fair value of units awarded in period	Concept (Monetary)	instant	credit	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
24	Outstanding, beginning of period, vested	Concept (Monetary)	instant		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested
25	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (periodEndLabel)	Concept (Monetary)	instant		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested
26	Issued - initial award	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod
27	Vested	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVestedInPeriod
28	Forfeited and cancelled	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsForfeitedAndCancelledInPeriod
29	Outstanding, beginning of period, non-vested	Concept (Monetary)	instant		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested
30	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested (periodEndLabel)	Concept (Monetary)	instant		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested
31	Exercised	Concept (Monetary)	duration		tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsExercisedInPeriod
32	Range [axis]	Axis	duration		ifrs-full:RangeAxis
33	Ranges [member]	Member	duration		ifrs-full:RangesMember
34	Maximum	Member	duration		ifrs-full:TopOfRangeMember
35	Minimum	Member	duration		ifrs-full:BottomOfRangeMember

Model Structure
Network	41406 - Disclosure - share-based compensation - Employee share purchase plan (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationEmployeeSharePurchasePlanDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	share-based compensation	Abstract	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	Employee share purchase plan	Member	duration		tu:EmployeeSharePurchasePlanMember
6	share-based compensation	LineItems	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
7	Employee contribution	Concept (Percent)	instant		tu:PercentageOfEmployeeContributionToEmployeeSharePurchasePlan
8	Employee contribution for highly compensated job classifications	Concept (Percent)	instant		tu:PercentageOfEmployeeContributionHighlyCompensatedToEmployeeSharePurchasePlan
9	Maximum percentage of employee contribution from payroll matched	Concept (Percent)	instant		tu:MaximumPercentageOfEmployeeContributionMatchedInEmployeeSharePurchasePlan
10	Matching contribution per plan	Concept (Percent)	instant		tu:PercentageOfMatchingContributionToEmployeeSharePurchasePlan
11	Actual matching contribution	Concept (Percent)	duration		tu:ActualPercentageOfMatchingContributionToEmployeeSharePurchasePlan
12	Actual matching contribution for highly compensated job classifications	Concept (Percent)	duration		tu:ActualPercentageOfMatchingContributionHighlyCompensatedJobClassificationsToEmployeeSharePurchasePlan
13	tu:DividendReinvestmentInCommonShares (negatedLabel)	Concept (Monetary)	duration	debit	tu:DividendReinvestmentInCommonShares
14	Purchase plan discount	Concept (Percent)	duration		tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate
15	Range [axis]	Axis	duration		ifrs-full:RangeAxis
16	Ranges [member]	Member	duration		ifrs-full:RangesMember
17	Maximum	Member	duration		ifrs-full:TopOfRangeMember
18	Minimum	Member	duration		ifrs-full:BottomOfRangeMember

Model Structure
Network	41407 - Disclosure - share-based compensation - General options (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationGeneralOptionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	share-based compensation	Abstract	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration	ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration	ifrs-full:SharebasedPaymentArrangementsMember
5	Share option awards	Member	duration	tu:IfrsEmployeeStockOptionMember
6	share-based compensation	LineItems	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
7	tu:VestingLifeOfShareBasedAwards (terseLabel)	Concept (Duration)	duration	tu:VestingLifeOfShareBasedAwards
8	Range [axis]	Axis	duration	ifrs-full:RangeAxis
9	Ranges [member]	Member	duration	ifrs-full:RangesMember
10	Maximum	Member	duration	ifrs-full:TopOfRangeMember
11	Minimum	Member	duration	ifrs-full:BottomOfRangeMember

Model Structure
Network	41408 - Disclosure - share-based compensation - TELUS Corporation share options (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusCorporationShareOptionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	share-based compensation	Abstract	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	TELUS Corporation share options	Member	duration		tu:TelusShareOptionsMember
6	share-based compensation	LineItems	duration		ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
7	Exercise period	Concept (Duration)	duration		tu:ContractualLifeOfShareBasedAwards
8	ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement (terseLabel)	Concept (Decimal)	duration		ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
9	ifrs-full:NumberOfOutstandingShareOptions (periodStartLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOutstandingShareOptions
10	ifrs-full:NumberOfOutstandingShareOptions (periodEndLabel)	Concept (Decimal)	instant		ifrs-full:NumberOfOutstandingShareOptions
11	ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (negatedLabel)	Concept (Decimal)	duration		ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
12	Number of share options forfeited	Concept (Decimal)	duration		ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
13	Number of share options expired	Concept (Decimal)	duration		ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
14	Weighted average share price of options outstanding, beginning of period	Concept (Monetary)	instant		ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
15	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (periodEndLabel)	Concept (Monetary)	instant		ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
16	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (terseLabel)	Concept (Monetary)	duration		ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
17	Weighted average share price of options forfeited	Concept (Monetary)	duration		ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
18	Weighted average share price of options expired	Concept (Monetary)	duration		ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
19	Total intrinsic value of share option awards exercised	Concept (Monetary)	duration	debit	tu:IntrinsicValueOfShareOptionsExercisedInSharebasedPaymentArrangement
20	Weighted average share price at the dates of exercise	Concept (Monetary)	duration		ifrs-full:WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise
21	Option price	Concept (Monetary)	instant		ifrs-full:ExercisePriceOfOutstandingShareOptions
22	Weighted average remaining contractual life (years)	Concept (Decimal)	instant		ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
23	Range [axis]	Axis	duration		ifrs-full:RangeAxis
24	Ranges [member]	Member	duration		ifrs-full:RangesMember
25	Maximum	Member	duration		ifrs-full:TopOfRangeMember
26	Minimum	Member	duration		ifrs-full:BottomOfRangeMember

Model Structure
Network	41409 - Disclosure - share-based compensation - TELUS International (Cda) Inc. share options (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusInternationalCdaIncShareOptionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	share-based compensation	Abstract	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
2	Disclosure of terms and conditions of share-based payment arrangement [Table]	Table	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
3	Types of share-based payment arrangements [axis]	Axis	duration	ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration	ifrs-full:SharebasedPaymentArrangementsMember
5	TELUS International (Cda) Inc. share options	Member	duration	tu:TelusInternationalCdaIncShareOptionsMember
6	Telus International (Cda) Inc. share options, U.S. $ denominated	Member	duration	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember
7	TELUS International (Cda) Inc. share options, Canadian $ denominated	Member	duration	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember
8	share-based compensation	LineItems	duration	ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
9	Variable payout (as a percent)	Concept (Percent)	instant	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement
10	Exercise period	Concept (Duration)	duration	tu:ContractualLifeOfShareBasedAwards
11	Granted (in shares)	Concept (Decimal)	duration	ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
12	ifrs-full:NumberOfOutstandingShareOptions (periodStartLabel)	Concept (Decimal)	instant	ifrs-full:NumberOfOutstandingShareOptions
13	ifrs-full:NumberOfOutstandingShareOptions (periodEndLabel)	Concept (Decimal)	instant	ifrs-full:NumberOfOutstandingShareOptions
14	Weighted average share price of options outstanding, beginning of period	Concept (Monetary)	instant	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
15	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (periodEndLabel)	Concept (Monetary)	instant	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
16	Option price	Concept (Monetary)	instant	ifrs-full:ExercisePriceOfOutstandingShareOptions
17	Weighted average remaining contractual life (years)	Concept (Decimal)	instant	ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
18	Granted (in dollars per share)	Concept (Monetary)	duration	ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
19	Range [axis]	Axis	duration	ifrs-full:RangeAxis
20	Ranges [member]	Member	duration	ifrs-full:RangesMember
21	Maximum	Member	duration	ifrs-full:TopOfRangeMember
22	Minimum	Member	duration	ifrs-full:BottomOfRangeMember

Model Structure
Network	41501 - Disclosure - employee future benefits - Pension plans (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionPlansDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	employee future benefits	Abstract	duration	tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration	ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Range [axis]	Axis	duration	ifrs-full:RangeAxis
4	Ranges [member]	Member	duration	ifrs-full:RangesMember
5	Maximum	Member	duration	ifrs-full:TopOfRangeMember
6	Minimum	Member	duration	ifrs-full:BottomOfRangeMember
7	Defined benefit plans [axis]	Axis	duration	ifrs-full:DefinedBenefitPlansAxis
8	Defined benefit plans [member]	Member	duration	ifrs-full:DefinedBenefitPlansMember
9	TELUS Corporation Pension Plan	Member	duration	tu:TelusCorporationPensionPlanMember
10	Pension Plan for Management and Professional Employees of TELUS Corporation	Member	duration	tu:PensionPlanForManagementAndProfessionalEmployeesOfTelusCorporationMember
11	TELUS Quebec Defined Benefit Pension Plan	Member	duration	tu:TelusQuebecDefinedBenefitPensionPlanMember
12	TELUS Edmonton Pension Plan	Member	duration	tu:TelusEdmontonPensionPlanMember
13	Non-registered, non-contributory supplementary defined benefit pension plans	Member	duration	tu:NonRegisteredNonContributorySupplementaryDefinedBenefitPensionPlansMember
14	Non-indexed defined benefit pension plans arising from a pre-merger acquisition	Member	duration	tu:PreMergerAcquisitionDefinedBenefitPensionPlansMember
15	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems (terseLabel)	LineItems	duration	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
16	Percentage to total defined benefit obligation	Concept (Percent)	instant	tu:PercentageToTotalDefinedBenefitPlanObligation
17	Indexation of annual increase in a specified cost-of-living index (as a per cent)	Concept (Percent)	instant	tu:PercentageOfIndexationOfAnnualIncreaseInCostLivingIndex
18	Annual maximum increase in pension benefits (as a per cent)	Concept (Percent)	instant	tu:MaximumPercentageOfAnnualIncreaseOfPensionBenefits
19	Pensionable remuneration period of best years	Concept (Duration)	duration	tu:PensionableRemunerationPeriodBasis
20	Pensionable remuneration reference period	Concept (Duration)	duration	tu:PensionableRemunerationReferencePeriodBasis
21	Number of defined benefit pension plans	Concept (Decimal)	instant	tu:NumberOfDefinedBenefitPensionPlans

Model Structure
Network	41502 - Disclosure - employee future benefits - Defined contribution pension plans (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsDefinedContributionPensionPlansDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	employee future benefits	Abstract	duration	tu:EmployeeFutureBenefitsAbstract
2	IFRS Defined Contribution Plan [Table]	Table	duration	tu:IfrsDefinedContributionPlanTable
3	Range [axis]	Axis	duration	ifrs-full:RangeAxis
4	Ranges [member]	Member	duration	ifrs-full:RangesMember
5	Maximum	Member	duration	ifrs-full:TopOfRangeMember
6	Minimum	Member	duration	ifrs-full:BottomOfRangeMember
7	Defined contribution pension plans	LineItems	duration	tu:IfrsDefinedContributionPlanLineItems
8	Number of defined contribution plans	Concept (Decimal)	instant	tu:NumberDefinedContributionPensionPlans
9	Employees contribution to the plan (as a per cent)	Concept (Percent)	duration	tu:DefinedContributionPlanAnnualContributionsPerEmployeePercent
10	Matching contribution to employees' 5% contribution	Concept (Percent)	instant	tu:DefinedContributionEmployerMatchingContributionToEmployeesFivePercentContribution
11	Employees' contribution 100% matched (as a per cent)	Concept (Percent)	duration	tu:DefinedContributionPercentageOfEmployeesContributionMatchFullyByEmployer
12	Employer matching contribution over 5% of employee's contribution	Concept (Percent)	instant	tu:DefinedContributionPlanEmployerMatchingContributionPercentOfMatchOverFivePercent

Model Structure
Network	41503 - Disclosure - employee future benefits - Pensions funded status (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionsFundedStatusDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of net defined benefit liability (asset) [table]	Table	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
3	Net defined benefit liability (asset) [axis]	Axis	duration		ifrs-full:NetDefinedBenefitLiabilityAssetAxis
4	Net defined benefit liability (asset) [member]	Member	duration		ifrs-full:NetDefinedBenefitLiabilityAssetMember
5	Present value of the defined benefit obligations	Member	duration		ifrs-full:PresentValueOfDefinedBenefitObligationMember
6	Plan assets	Member	duration		ifrs-full:PlanAssetsMember
7	Plan assets net of Effect of asset ceiling limit	Member	duration		tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember
8	Effect of asset ceiling limit	Member	duration		ifrs-full:EffectOfAssetCeilingMember
9	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
10	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
11	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
12	Defined benefit pension plans - funded status overview	LineItems	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
13	Funded Status - Planned surplus (deficit)	Abstract	duration		tu:ChangesInNetDefinedBenefitLiabilityAbstract
14	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (periodStartLabel)	Concept (Monetary)	instant	credit	ifrs-full:LiabilityAssetOfDefinedBenefitPlans
15	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:LiabilityAssetOfDefinedBenefitPlans
16	Current service cost	Concept (Monetary)	duration	credit	ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
17	Past service cost	Concept (Monetary)	duration	credit	ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
18	Interest expense	Concept (Monetary)	duration	credit	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
19	Actuarial gains losses arising from changes in demographic assumptions	Concept (Monetary)	duration	debit	ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
20	Actuarial gains losses arising from changes in financial assumptions	Concept (Monetary)	duration	debit	ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset
21	Benefits paid	Concept (Monetary)	duration	debit	ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset
22	Return on plan assets - Actual return on plan assets greater than discount rate	Concept (Monetary)	duration	debit	tu:ReturnOnPlanAssetsInterestIncomeInExcessOfNotionalInterestIncomeNetDeferredBenefitLiabilityAsset
23	Contributions - Employer contributions	Concept (Monetary)	duration	debit	ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
24	Contributions - Employees' contributions	Concept (Monetary)	duration	debit	ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset
25	Administrative fees	Concept (Monetary)	duration	credit	tu:AdministrativeExpenseEffectOnNetBenefitLiabilityAsset
26	Change	Concept (Monetary)	duration	debit	ifrs-full:GainLossOnChangesInEffectOfLimitingNetDefinedBenefitAssetToAssetCeiling

Model Structure
Network	41504 - Disclosure - employee future benefits - Pensions funded status presentation in statements of financial position (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionsFundedStatusPresentationInStatementsOfFinancialPositionDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of net defined benefit liability (asset) [table]	Table	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
3	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
4	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
5	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
6	Other defined benefit plans	Member	duration		tu:OtherBenefitPlansMember
7	Defined benefit pension plans - funded status overview	LineItems	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
8	Presented in the Consolidated statements of financial position as:	Abstract	duration		tu:IfrsDefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract
9	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan (terseLabel)	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
10	Other long-term liabilities	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentProvisionsForEmployeeBenefits
11	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (negatedTerseLabel)	Concept (Monetary)	instant	credit	ifrs-full:LiabilityAssetOfDefinedBenefitPlans

Model Structure
Network	41505 - Disclosure - employee future benefits - Pension plan expense (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionPlanExpenseDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration		ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Defined benefit pension plan expense (recovery)	LineItems	duration		ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
4	Current service cost	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansCurrentServiceCost
5	Past service costs	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansPastServiceCost
6	Interest expense arising from defined benefit obligations accrued	Concept (Monetary)	duration	debit	tu:InterestExpenseFromDefinedBenefitObligationsAccrued
7	Return, including interest income, on plan assets	Concept (Monetary)	duration	credit	tu:DefinedBenefitPlansReturnOnPlanAssets
8	Interest effect on asset ceiling limit	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansInterestEffectOnAssetCeilingLimit
9	Total	Concept (Monetary)	duration	credit	tu:NetInterestAndReturnOnPlanAssets
10	Administrative fees	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansAdministrativeExpense
11	Re-measurements arising from demographic assumptions	Concept (Monetary)	duration	debit	tu:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsServiceCost
12	Re-measurements arising financial assumptions	Concept (Monetary)	duration	debit	tu:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsServiceCost
13	Total	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansActuarialGainsLosses
14	Changes in the effect of limiting net defined benefit assets to the asset ceiling	Concept (Monetary)	duration	debit	tu:ExpenseIncomeFromGainLossOnChangesInEffectOfLimitingNetdefinedBenefitAssetToAssetCeiling
15	Total	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitCostsDefinedBenefitPlans
16	Current service cost	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansCurrentServiceCostInEmployeeBenefitsExpense
17	Past service cost	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansPastServiceCostInEmployeeBenefitsExpense
18	Administrative fees	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansAdministrativeExpenseInEmployeeBenefitsExpense
19	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (totalLabel)	Concept (Monetary)	duration	debit	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
20	Interest expense arising from defined benefit obligations accrued	Concept (Monetary)	duration	debit	tu:InterestExpenseFromDefinedBenefitObligationsAccruedInFinancingCost
21	Return, including interest income, on plan assets	Concept (Monetary)	duration	credit	tu:DefinedBenefitPlansReturnOnPlanAssetsInFinancingCost
22	Interest effect on asset ceiling limit	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansInterestEffectOnAssetCeilingLimitInFinancingCost
23	Total	Concept (Monetary)	duration	debit	tu:NetInterestAndReturnOnPlanAssetsInFinancingCost
24	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost (totalLabel)	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost
25	Return, including interest income, on plan assets	Concept (Monetary)	duration	credit	tu:DefinedBenefitPlansReturnOnPlanAssetsInOtherComprehensiveIncome
26	Total	Concept (Monetary)	duration	credit	tu:NetInterestAndReturnOnPlanAssetsInOtherComprehensiveIncome
27	Re-measurements arising from demographic assumptions	Concept (Monetary)	duration	debit	tu:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsServiceCostInOtherComprehensiveIncome
28	Re-measurements arising Financial assumptions	Concept (Monetary)	duration	debit	tu:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsServiceCostInOtherComprehensiveIncome
29	Total	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansActuarialGainsLossesInOtherComprehensiveIncome
30	Changes in the effect of limiting net defined benefit assets to the asset ceiling	Concept (Monetary)	duration	debit	tu:ExpenseIncomeFromGainLossOnChangesInEffectOfLimitingNetdefinedBenefitAssetToAssetCeilingInOtherComprehensiveIncome
31	tu:PostemploymentBenefitCostsDefinedBenefitPlansInOtherComprehensiveIncome (totalLabel)	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitCostsDefinedBenefitPlansInOtherComprehensiveIncome
32	IFRS Income Statement Location [Axis]	Axis	duration		tu:IfrsIncomeStatementLocationAxis
33	IFRS Income Statement Location [Member]	Member	duration		tu:IfrsIncomeStatementLocationMember
34	Employee benefits expense	Member	duration		tu:EmployeeBenefitsExpenseMember
35	Financing costs	Member	duration		tu:FinancingCostsMember
36	Other comprehensive income	Member	duration		tu:IfrsOtherComprehensiveIncomeMember

Model Structure
Network	41506 - Disclosure - employee future benefits - Disaggregation of defined benefit pension (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsDisaggregationOfDefinedBenefitPensionDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of net defined benefit liability (asset) [table]	Table	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
3	Net defined benefit liability (asset) [axis]	Axis	duration		ifrs-full:NetDefinedBenefitLiabilityAssetAxis
4	Net defined benefit liability (asset) [member]	Member	duration		ifrs-full:NetDefinedBenefitLiabilityAssetMember
5	Present value of the defined benefit obligations	Member	duration		ifrs-full:PresentValueOfDefinedBenefitObligationMember
6	Plan assets net of Effect of asset ceiling limit	Member	duration		tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember
7	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
8	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
9	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
10	Defined benefit pension plans - funded status overview	LineItems	duration		ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
11	Net defined liability/(assets)	Concept (Monetary)	instant	credit	ifrs-full:LiabilityAssetOfDefinedBenefitPlans
12	PBSR interim estimate of solvency position	Concept (Monetary)	instant	debit	tu:PensionBenefitsStandardsRegulations1985InterimSolvencyPosition
13	PBSR prior year update of annual estimate of solvency position	Concept (Monetary)	instant	debit	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyPosition
14	PBSR prior year interim estimate of solvency position	Concept (Monetary)	instant	debit	tu:PensionBenefitsStandardsRegulations1985CurrentYearInterimSolvencyPosition
15	PBSR interim solvency ratio	Concept (Percent)	instant		tu:PensionBenefitsStandardsRegulations1985InterimEstimatedSolvencyRatios
16	PBSR annual solvency ratio	Concept (Percent)	instant		tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyRatios
17	PBSR interim three-year solvency ratio	Concept (Percent)	instant		tu:PensionBenefitsStandardsRegulations1985InterimEstimatedThreeYearSolvencyRatios
18	PBSR annual three-year solvency ratio	Concept (Percent)	instant		tu:PensionBenefitsStandardsRegulations1985AnnualThreeYearSolvencyRatios
19	PBSR composite weighted average discount rate	Concept (Percent)	duration		tu:PensionBenefitsStandardsRegulations1985CompositeWeightedAverageDiscountRate
20	Hypothetical basis points decrease in PBSR composite weighted average discount rate (as a per cent)	Concept (Percent)	instant		tu:PensionBenefitsStandardsRegulations1985HypotheticalDecreaseOfBasisPointsInCompositeWeightedAverageDiscountRate
21	Decrease in the PBSR solvency position with hypothetical decrease of 25 basis points in the composite weighted average discount rate	Concept (Monetary)	instant	credit	tu:PensionBenefitsStandardsRegulations1985DecreaseInSolvencyPositionDueToHypotheticalDecreaseOfBasisPointsInCompositeWeightedAverageDiscountRate
22	Defined Benefit Plan Funding Status [Axis]	Axis	duration		tu:DefinedBenefitPlanFundingStatusAxis
23	Defined Benefit Plan Funding Status [Member]	Member	duration		tu:DefinedBenefitPlanFundingStatusMember
24	Pension plans that have plan assets in excess of defined benefit obligations accrued	Member	duration		tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember
25	Pension plans that have defined benefit obligations accrued in excess of plan assets	Member	duration		tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember
26	Pension plans that have defined benefit obligations accrued in excess of plan assets - Funded	Member	duration		tu:FundedDefinedBenefitPlanPensionPlansMember
27	Pension plans that have defined benefit obligations accrued in excess of plan assets - Unfunded	Member	duration		tu:UnfundedDefinedBenefitPlanPensionPlansMember
28	Defined Benefit Plan Participants Status [Axis]	Axis	duration		tu:DefinedBenefitPlanParticipantsStatusAxis
29	Defined Benefit Plan Participants Status [Member]	Member	duration		tu:DefinedBenefitPlanParticipantsStatusMember
30	Active members	Member	duration		tu:DefinedBenefitPlanActiveMembersMember
31	Deferred members	Member	duration		tu:DefinedBenefitPlanDeferredMembersMember
32	Pensioners	Member	duration		tu:DefinedBenefitPlanPensionersMember
33	Range [axis]	Axis	duration		ifrs-full:RangeAxis
34	Ranges [member]	Member	duration		ifrs-full:RangesMember
35	Maximum	Member	duration		ifrs-full:TopOfRangeMember
36	Minimum	Member	duration		ifrs-full:BottomOfRangeMember

Model Structure
Network	41507 - Disclosure - employee future benefits - Fair value measurements (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsFairValueMeasurementsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of fair value of plan assets [table]	Table	duration		ifrs-full:DisclosureOfFairValueOfPlanAssetsTable
3	Classes of financial instruments [axis]	Axis	duration		ifrs-full:ClassesOfFinancialInstrumentsAxis
4	Financial instruments, class [member]	Member	duration		ifrs-full:ClassesOfFinancialInstrumentsMember
5	Government securities	Member	duration		tu:GovernmentalSecuritiesMember
6	Corporate debt securities	Member	duration		ifrs-full:CorporateLoansMember
7	Commercial mortgages	Member	duration		ifrs-full:MortgagesMember
8	Geographical areas [axis]	Axis	duration		ifrs-full:GeographicalAreasAxis
9	Geographical areas [member]	Member	duration		ifrs-full:GeographicalAreasMember
10	Canadian	Member	duration		ifrs-full:CountryOfDomicileMember
11	Foreign	Member	duration		ifrs-full:ForeignCountriesMember
12	Levels of fair value hierarchy [axis]	Axis	duration		ifrs-full:LevelsOfFairValueHierarchyAxis
13	All levels of fair value hierarchy [member]	Member	duration		ifrs-full:AllLevelsOfFairValueHierarchyMember
14	Quoted prices in active markets for identical items	Member	duration		ifrs-full:Level1OfFairValueHierarchyMember
15	Other	Member	duration		ifrs-full:Level2And3OfFairValueHierarchyMember
16	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
17	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
18	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
19	Fair value measurements	LineItems	duration		ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
20	Equity securities	Concept (Monetary)	instant	debit	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets
21	Debt securities	Concept (Monetary)	instant	debit	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets
22	Asset-backed securities	Concept (Monetary)	instant	debit	ifrs-full:AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets
23	Cash, cash equivalents and other	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets
24	Real estate	Concept (Monetary)	instant	debit	ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets
25	Fair value	Concept (Monetary)	instant	debit	ifrs-full:PlanAssetsAtFairValue
26	Effect of asset ceiling limit	Concept (Monetary)	instant	credit	tu:PlanAssetsEffectOfAssetCeiling
27	Fair value after asset ceiling	Concept (Monetary)	instant	debit	tu:FairValueOfPlanAssetsAfterEffectOfAssetCeiling
28	Fair value of administered pension benefit trusts	Concept (Monetary)	instant	debit	tu:PensionBenefitTrustsAdministeredWithNoProhibitedInvestmentsFairValue

Model Structure
Network	41508 - Disclosure - employee future benefits - Future benefit payments (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsFutureBenefitPaymentsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration		ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
4	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
5	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
6	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
7	Estimated future benefit payments	Concept (Monetary)	instant	credit	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans
8	Maturity [axis]	Axis	duration		ifrs-full:MaturityAxis
9	Aggregated time bands [member]	Member	duration		ifrs-full:AggregatedTimeBandsMember
10	First year	Member	duration		ifrs-full:NotLaterThanOneYearMember
11	2 years hence	Member	duration		ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
12	3 years hence	Member	duration		ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
13	4 years hence	Member	duration		ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
14	5 years hence	Member	duration		ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
15	2023-2027	Member	duration		ifrs-full:LaterThanFiveYearsAndNotLaterThanTenYearsMember

Model Structure
Network	41509 - Disclosure - employee future benefits - Plan investment strategies and policies (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPlanInvestmentStrategiesAndPoliciesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	employee future benefits	Abstract	duration	tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration	ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Range [axis]	Axis	duration	ifrs-full:RangeAxis
4	Ranges [member]	Member	duration	ifrs-full:RangesMember
5	Maximum	Member	duration	ifrs-full:TopOfRangeMember
6	Minimum	Member	duration	ifrs-full:BottomOfRangeMember
7	Defined benefit plans [axis]	Axis	duration	ifrs-full:DefinedBenefitPlansAxis
8	Defined benefit plans [member]	Member	duration	ifrs-full:DefinedBenefitPlansMember
9	Pension plans	Member	duration	tu:DefinedBenefitPensionPlansMember
10	Other defined benefit plans	Member	duration	tu:OtherBenefitPlansMember
11	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems (terseLabel)	LineItems	duration	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
12	Target future allocation	Concept (Percent)	duration	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation
13	Present value-weighted average timing of estimate cash flows for obligations	Concept (Decimal)	duration	ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
14	Percentage of plan assets at end of year	Concept (Percent)	instant	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations
15	Geographical areas [axis]	Axis	duration	ifrs-full:GeographicalAreasAxis
16	Geographical areas [member]	Member	duration	ifrs-full:GeographicalAreasMember
17	Foreign	Member	duration	ifrs-full:ForeignCountriesMember
18	Classes of financial instruments [axis]	Axis	duration	ifrs-full:ClassesOfFinancialInstrumentsAxis
19	Financial instruments, class [member]	Member	duration	ifrs-full:ClassesOfFinancialInstrumentsMember
20	Equity	Member	duration	ifrs-full:EquityInvestmentsMember
21	Debt securities	Member	duration	ifrs-full:DebtSecuritiesMember
22	Real estate	Member	duration	ifrs-full:InvestmentPropertyMember
23	Other assets	Member	duration	ifrs-full:OtherAssetsMember

Model Structure
Network	41510 - Disclosure - employee future benefits - Employer contributions (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsEmployerContributionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration		ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
4	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
5	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
6	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
7	Undrawn letters of credit that secure obligations	Concept (Monetary)	instant	credit	tu:DefinedBenefitPlanUndrawnLettersOfCredit
8	Estimated contributions to defined benefit plans in 2017	Concept (Monetary)	duration	credit	ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan

Model Structure
Network	41511 - Disclosure - employee future benefits - Assumptions (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsAssumptionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration		ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
4	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
5	Pension plans	Member	duration		tu:DefinedBenefitPensionPlansMember
6	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
7	Discount rate used to determine net benefit costs	Concept (Percent)	instant		tu:ActuarialAssumptionOfDiscountRatesNetBenefitCosts
8	Discount rate used to determine defined benefit obligations	Concept (Percent)	instant		ifrs-full:ActuarialAssumptionOfDiscountRates
9	Discount rate used to determine current service cost in subsequent fiscal year	Concept (Percent)	instant		tu:ActuarialAssumptionOfDiscountRatesCurrentServiceCostInSubsequentYear
10	Rate of future increases in compensation used to determine net benefit costs	Concept (Percent)	instant		tu:ActuarialAssumptionOfRateOfFutureIncreaseNetBenefitCosts
11	Rate of future increases in compensation used to defined benefit obligations	Concept (Percent)	instant		ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
12	Increase in life expectancy in actuarial assumption	Concept (Duration)	duration		tu:PeriodOfReasonablyPossibleIncreaseInLifeExpectancy
13	Decrease in actuarial assumption (as a per cent)	Concept (Percent)	instant		ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption
14	Effect of change in actuarial assumption in obligation	Concept (Monetary)	instant	credit	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
15	Effect of change in actuarial assumption in expense	Concept (Monetary)	duration	debit	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption
16	Actuarial assumptions [axis]	Axis	duration		ifrs-full:ActuarialAssumptionsAxis
17	Actuarial assumptions [member]	Member	duration		ifrs-full:ActuarialAssumptionsMember
18	Life expectancy	Member	duration		tu:ActuarialAssumptionOfLifeExpectancyMember
19	Discount rate	Member	duration		ifrs-full:ActuarialAssumptionOfDiscountRatesMember
20	Rate of future increases in compensation	Member	duration		ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember

Model Structure
Network	41512 - Disclosure - employee future benefits - Defined contribution pension plans expense (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsDefinedContributionPensionPlansExpenseDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure Of Defined Contribution Plans Expense [Table]	Table	duration		tu:DisclosureOfDefinedContributionPlansExpenseTable
3	Classes Of Employee Benefits [Axis]	Axis	duration		tu:ClassesOfEmployeeBenefitsAxis
4	Classes of employee benefits	Member	duration		tu:ClassesOfEmployeeBenefitsMember
5	Traditional	Member	duration		tu:TraditionalMember
6	Transformative compensation	Member	duration		tu:TransformativeCompensationMember
7	Disclosure of defined contribution plans expense	LineItems	duration		tu:DisclosureOfDefinedContributionPlansExpenseLineItems
8	Union pension plan and public service pension plan contributions	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans
9	Other defined contribution pension plans	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitExpenseDefinedContributionPlansOther
10	Total	Concept (Monetary)	duration	debit	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
11	Expected union pension plan and public service pension plan contribution in following year	Concept (Monetary)	instant	credit	tu:EstimateFutureContributionToPostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans

Model Structure
Network	41513 - Disclosure - employee future benefits - Other defined benefit plans (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsOtherDefinedBenefitPlansDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	employee future benefits	Abstract	duration		tu:EmployeeFutureBenefitsAbstract
2	Disclosure of defined benefit plans [table]	Table	duration		ifrs-full:DisclosureOfDefinedBenefitPlansTable
3	Defined benefit plans [axis]	Axis	duration		ifrs-full:DefinedBenefitPlansAxis
4	Defined benefit plans [member]	Member	duration		ifrs-full:DefinedBenefitPlansMember
5	Other defined benefit plans	Member	duration		tu:OtherBenefitPlansMember
6	ifrs-full:DisclosureOfDefinedBenefitPlansLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
7	Financing cost	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost
8	Other re-measurements recorded in other comprehensive income	Concept (Monetary)	duration	debit	tu:PostemploymentBenefitCostsDefinedBenefitPlansInOtherComprehensiveIncome
9	Estimated future benefit payments	Concept (Monetary)	instant	credit	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans
10	Other defined benefits	Concept (Monetary)	duration	debit	tu:OtherDefinedBenefits
11	Maturity [axis]	Axis	duration		ifrs-full:MaturityAxis
12	Aggregated time bands [member]	Member	duration		ifrs-full:AggregatedTimeBandsMember
13	First year	Member	duration		ifrs-full:NotLaterThanOneYearMember
14	2 years hence	Member	duration		ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
15	3 years hence	Member	duration		ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
16	4 years hence	Member	duration		ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
17	5 years hence	Member	duration		ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
18	2023-2027	Member	duration		ifrs-full:LaterThanFiveYearsAndNotLaterThanTenYearsMember

Model Structure
Network	41601 - Disclosure - restructuring and other costs (Details) (http://www.telus.com/role/DisclosureRestructuringAndOtherCostsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	restructuring and other costs	Abstract	duration		tu:DisclosureOfRestructuringAndOtherCostsAbstract
2	Restructuring And Other Costs [Table]	Table	duration		tu:RestructuringAndOtherCostsTable
3	Classes Of Employee Benefits [Axis]	Axis	duration		tu:ClassesOfEmployeeBenefitsAxis
4	Classes of employee benefits	Member	duration		tu:ClassesOfEmployeeBenefitsMember
5	Transformative compensation	Member	duration		tu:TransformativeCompensationMember
6	IFRS Income Statement Location [Axis]	Axis	duration		tu:IfrsIncomeStatementLocationAxis
7	IFRS Income Statement Location [Member]	Member	duration		tu:IfrsIncomeStatementLocationMember
8	Restructuring	Member	duration		tu:RestructuringCostsMember
9	Other	Member	duration		tu:OtherCostsMember
10	restructuring and other costs	LineItems	duration		tu:RestructuringAndOtherCostsLineItems
11	Goods and services purchased	Concept (Monetary)	duration	debit	tu:RestructuringCostsGoodsAndServicesPurchased
12	Employee benefits expense	Concept (Monetary)	duration	debit	tu:RestructuringCostsEmployeeBenefitsExpense
13	Total	Concept (Monetary)	duration	debit	tu:RestructuringAndOtherCosts
14	Requisite service period (in years)	Concept (Duration)	duration		tu:RequisiteVestingServicePeriod

Model Structure
Network	41701 - Disclosure - property, plant and equipment (Details) (http://www.telus.com/role/DisclosurePropertyPlantAndEquipmentDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	property, plant and equipment	Abstract	duration		ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
2	property, plant and equipment [table]	Table	duration		ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
3	Classes of property, plant and equipment [axis]	Axis	duration		ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
4	Property, plant and equipment [member]	Member	duration		ifrs-full:PropertyPlantAndEquipmentMember
5	Other	Member	duration		ifrs-full:OtherPropertyPlantAndEquipmentMember
6	Network assets	Member	duration		ifrs-full:NetworkInfrastructureMember
7	Buildings and leasehold improvements	Member	duration		ifrs-full:BuildingsMember
8	Land	Member	duration		ifrs-full:LandMember
9	Assets under construction	Member	duration		us-gaap:AssetUnderConstructionMember
10	property, plant and equipment	LineItems	duration		ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
11	property, plant and equipment	Abstract	duration		ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
12	ifrs-full:PropertyPlantAndEquipment (periodStartLabel)	Concept (Monetary)	instant	debit	ifrs-full:PropertyPlantAndEquipment
13	ifrs-full:PropertyPlantAndEquipment (periodEndLabel)	Concept (Monetary)	instant	debit	ifrs-full:PropertyPlantAndEquipment
14	Additions	Concept (Monetary)	duration	debit	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
15	Additions arising from business acquisitions	Concept (Monetary)	duration	debit	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
16	Depreciation	Concept (Monetary)	duration		ifrs-full:DepreciationPropertyPlantAndEquipment
17	Dispositions, retirements and other	Concept (Monetary)	duration	credit	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment
18	Assets under construction put into service	Concept (Monetary)	instant	debit	tu:AssetsUnderConstructionPutIntoService
19	Additions in respect of asset retirement obligations	Concept (Monetary)	instant	debit	tu:AdditionsInRespectOfAssetRetirementObligations
20	Contractual commitments for the acquisition of property, plant and equipment	Concept (Monetary)	instant	credit	ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment
21	Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]	Axis	duration		ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
22	Carrying amount [member]	Member	duration		ifrs-full:CarryingAmountMember
23	Cost/Gross amount	Member	duration		ifrs-full:GrossCarryingAmountMember
24	Accumulated depreciation	Member	duration		ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember

Model Structure
Network	41801 - Disclosure - intangible assets and goodwill (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	intangible assets and goodwill	Abstract	duration		ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	Disclosure of reconciliation of changes in intangible assets and goodwill [table]	Table	duration		ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable
3	Classes of intangible assets and goodwill [axis]	Axis	duration		ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
4	Intangible assets and goodwill [member]	Member	duration		ifrs-full:IntangibleAssetsAndGoodwillMember
5	Total intangible assets	Member	duration		ifrs-full:IntangibleAssetsOtherThanGoodwillMember
6	Intangible assets subject to amortization	Member	duration		tu:IntangibleAssetsSubjectToAmortizationMember
7	Customer contracts, related customer relationships and leasehold interests	Member	duration		tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember
8	Software	Member	duration		ifrs-full:ComputerSoftwareMember
9	Access to rights-of-way and other	Member	duration		ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember
10	Assets under construction	Member	duration		ifrs-full:IntangibleAssetsUnderDevelopmentMember
11	Goodwill	Member	duration		ifrs-full:GoodwillMember
12	Intangible assets with indefinite useful life [axis]	Axis	duration		ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeAxis
13	Intangible assets with indefinite lives	Member	duration		ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember
14	Spectrum licences	Member	duration		ifrs-full:GSMLicencesMember
15	Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]	Axis	duration		ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
16	Carrying amount [member]	Member	duration		ifrs-full:CarryingAmountMember
17	Cost/Gross amount	Member	duration		ifrs-full:GrossCarryingAmountMember
18	Allowance for doubtful accounts	Member	duration		ifrs-full:AccumulatedImpairmentMember
19	Accumulated amortization	Member	duration		ifrs-full:AccumulatedDepreciationAndAmortisationMember
20	intangible assets and goodwill	LineItems	duration		ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
21	Balance at beginning of the period	Concept (Monetary)	instant	debit	ifrs-full:IntangibleAssetsAndGoodwill
22	ifrs-full:IntangibleAssetsAndGoodwill (periodEndLabel)	Concept (Monetary)	instant	debit	ifrs-full:IntangibleAssetsAndGoodwill
23	Additions	Concept (Monetary)	duration	debit	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
24	Additions arising from business acquisitions	Concept (Monetary)	duration	debit	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill
25	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (negatedTerseLabel)	Concept (Monetary)	duration		ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
26	Dispositions, retirements and other (including capitalized interest)	Concept (Monetary)	duration	credit	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill
27	Assets under construction put into service	Concept (Monetary)	duration	debit	tu:IncreaseDecreaseThroughAssetsUnderConstructionPutIntoService
28	Net foreign exchange differences	Concept (Monetary)	duration	debit	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill
29	ifrs-full:Goodwill (negatedLabel)	Concept (Monetary)	instant	debit	ifrs-full:Goodwill
30	Contractual commitments for the acquisition of intangible assets	Concept (Monetary)	instant	credit	ifrs-full:ContractualCommitmentsForAcquisitionOfIntangibleAssets
31	Renewal of spectrum license ( in years)	Concept (Duration)	duration		tu:RenewalOfSpectrumLicenses

Model Structure
Network	41802 - Disclosure - intangible assets and goodwill - Business acquisitions (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillBusinessAcquisitionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	intangible assets and goodwill	Abstract	duration		ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	Disclosure of detailed information about business combination [table]	Table	duration		ifrs-full:DisclosureOfBusinessCombinationsTable
3	Classes of property, plant and equipment [axis]	Axis	duration		ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
4	Property, plant and equipment [member]	Member	duration		ifrs-full:PropertyPlantAndEquipmentMember
5	Other	Member	duration		ifrs-full:OtherPropertyPlantAndEquipmentMember
6	Network assets	Member	duration		ifrs-full:NetworkInfrastructureMember
7	Buildings and leasehold improvements	Member	duration		tu:BuildingsAndLeaseholdImprovementsMember
8	Business combinations [axis]	Axis	duration		ifrs-full:BusinessCombinationsAxis
9	Entity's total for business combinations [member]	Member	duration		ifrs-full:EntitysTotalForBusinessCombinationsMember
10	Combined acquisitions	Member	duration		ifrs-full:BusinessCombinationsMember
11	Manitoba Telecom Services Inc. postpaid wireless	Member	duration		tu:ManitobaTelecomServicesIncPostpaidWirelessMember
12	Kroll Computer Systems Inc.	Member	duration		tu:KrollComputerSystemsIncMember
13	Voxpro Limited	Member	duration		tu:VoxproLimitedMember
14	Individually immaterial transactions	Member	duration		ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember
15	Classes of intangible assets and goodwill [axis]	Axis	duration		ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
16	Intangible assets and goodwill [member]	Member	duration		ifrs-full:IntangibleAssetsAndGoodwillMember
17	Customer contracts, customer relationships, and leasehold interests	Member	duration		ifrs-full:CustomerrelatedIntangibleAssetsMember
18	Software	Member	duration		ifrs-full:ComputerSoftwareMember
19	Range [axis]	Axis	duration		ifrs-full:RangeAxis
20	Ranges [member]	Member	duration		ifrs-full:RangesMember
21	Maximum	Member	duration		ifrs-full:TopOfRangeMember
22	Minimum	Member	duration		ifrs-full:BottomOfRangeMember
23	Business acquisition	LineItems	duration		ifrs-full:DisclosureOfBusinessCombinationsLineItems
24	Number of retail location rights acquired	Concept (Integer)	instant		tu:NumberOfRetailLocationRightsAcquired
25	Ownership interest in businesses acquired (as a percentage)	Concept (Percent)	instant		ifrs-full:PercentageOfVotingEquityInterestsAcquired
26	Percentage of shares remaining that were included in the written put option provided to the non-controlling shareholders	Concept (Percent)	duration		tu:VotingEquityInterestsIncludedInWrittenPutOptionProvidedToShareholdersPercentage
27	Fair values assigned to assets acquired and liabilities assumed in acquisition	Abstract	duration		ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract
28	Assets	Abstract	duration		ifrs-full:AssetsAbstract
29	Current assets	Abstract	duration		ifrs-full:CurrentAssetsAbstract
30	Cash	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
31	Accounts receivable	Concept (Monetary)	instant	debit	ifrs-full:FairValueOfAcquiredReceivables
32	Other	Concept (Monetary)	instant	debit	tu:OtherCurrentAssetsRecognisedAsOfAcquisitionDate
33	Total current assets	Concept (Monetary)	instant	debit	ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate
34	Non-current assets	Abstract	duration		ifrs-full:NoncurrentAssetsAbstract
35	Property, plant and equipment	Concept (Monetary)	instant	debit	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
36	Intangible assets subject to amortization	Concept (Monetary)	instant	debit	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
37	Total non current assets	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate
38	Total identifiable assets acquired	Concept (Monetary)	instant	debit	tu:IdentifiableAssetsAcquired
39	Liabilities	Abstract	duration		ifrs-full:LiabilitiesAbstract
40	Current liabilities	Abstract	duration		ifrs-full:CurrentLiabilitiesAbstract
41	Accounts payable and accrued liabilities	Concept (Monetary)	instant	credit	ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
42	Advance billings and customer deposits	Concept (Monetary)	instant	credit	tu:AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate
43	Provisions	Concept (Monetary)	instant	credit	tu:CurrentProvisionsRecognizedAsOfAcquisitionDate
44	Total current liabilities	Concept (Monetary)	instant	credit	ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate
45	Non-current liabilities	Abstract	duration		ifrs-full:NoncurrentLiabilitiesAbstract
46	Provisions	Concept (Monetary)	instant	credit	tu:NonCurrentProvisionsRecognizedAsOfAcquisitionDate
47	Other long-term liabilities	Concept (Monetary)	instant	credit	ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate
48	Deferred income taxes	Concept (Monetary)	instant	credit	ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
49	Total non-current liabilities	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate
50	Total liabilities assumed	Concept (Monetary)	instant	credit	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate
51	Net identifiable assets acquired	Concept (Monetary)	instant	debit	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
52	Goodwill	Concept (Monetary)	instant	debit	ifrs-full:Goodwill
53	Net assets acquired	Concept (Monetary)	instant	debit	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed
54	Acquisition effected by way of:	Abstract	duration		ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract
55	Cash consideration	Concept (Monetary)	instant	credit	ifrs-full:CashTransferred
56	Accrued receivable	Concept (Monetary)	instant	debit	ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
57	Accounts payable and accrued liabilities	Concept (Monetary)	instant	credit	tu:AccountsPayableAndAccruedLiabilitiesTransferred
58	Provisions	Concept (Monetary)	instant	credit	tu:ProvisionsTransferred
59	ifrs-full:EquityInterestsOfAcquirer (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:EquityInterestsOfAcquirer
60	Pre-existing relationship effectively settled	Concept (Monetary)	instant	credit	tu:AdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination
61	Total consideration transferred	Concept (Monetary)	instant	credit	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
62	Gain (loss) recognized on settlement of pre-existing relationship	Concept (Monetary)	duration	credit	tu:GainLossOnAdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination
63	Useful life of intangible assets	Concept (String)	duration		ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
64	Change in contingent consideration receivable	Concept (Monetary)	duration	credit	tu:OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable

Model Structure
Network	41803 - Disclosure - intangible assets and goodwill - Business acquisition pro forma information (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillBusinessAcquisitionProFormaInformationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	intangible assets and goodwill	Abstract	duration		ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	Disclosure of detailed information about business combination [table]	Table	duration		ifrs-full:DisclosureOfBusinessCombinationsTable
3	Business combinations [axis]	Axis	duration		ifrs-full:BusinessCombinationsAxis
4	Entity's total for business combinations [member]	Member	duration		ifrs-full:EntitysTotalForBusinessCombinationsMember
5	Manitoba Telecom Services Inc. postpaid wireless	Member	duration		tu:ManitobaTelecomServicesIncPostpaidWirelessMember
6	Kroll Computer Systems Inc.	Member	duration		tu:KrollComputerSystemsIncMember
7	Voxpro Limited	Member	duration		tu:VoxproLimitedMember
8	Business acquisition	LineItems	duration		ifrs-full:DisclosureOfBusinessCombinationsLineItems
9	Pro forma Information	Abstract	duration		tu:ProFormaInformationAbstract
10	Reported Operating revenues	Concept (Monetary)	duration	credit	ifrs-full:Revenue
11	Reported Net income	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
12	Pro forma Operating revenues	Concept (Monetary)	duration	credit	ifrs-full:RevenueOfCombinedEntity
13	Pro forma Net income	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossOfCombinedEntity
14	Net income per Common Share	Abstract	duration		ifrs-full:EarningsPerShareAbstract
15	Basic	Concept (Per-Share)	duration		ifrs-full:BasicEarningsLossPerShare
16	Diluted	Concept (Per-Share)	duration		ifrs-full:DilutedEarningsLossPerShare
17	Pro forma Basic	Concept (Per-Share)	duration		tu:IfrsBusinessAcquisitionProFormaEarningsPerShareBasic
18	Pro forma Diluted	Concept (Per-Share)	duration		tu:IfrsBusinessAcquisitionProFormaEarningsPerShareDiluted
19	Reported Operating revenues of acquiree	Concept (Monetary)	duration	credit	ifrs-full:RevenueOfAcquiree
20	Reported Net income of acquiree	Concept (Monetary)	duration	credit	ifrs-full:ProfitLossOfAcquiree

Model Structure
Network	41804 - Disclosure - intangible assets and goodwill - Business acquisitions - subsequent to reporting period (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillBusinessAcquisitionsSubsequentToReportingPeriodDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	intangible assets and goodwill	Abstract	duration		ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	Disclosure of detailed information about business combination [table]	Table	duration		ifrs-full:DisclosureOfBusinessCombinationsTable
3	Business combinations [axis]	Axis	duration		ifrs-full:BusinessCombinationsAxis
4	Entity's total for business combinations [member]	Member	duration		ifrs-full:EntitysTotalForBusinessCombinationsMember
5	Xavient Information Systems	Member	duration		tu:XavientInformationSystemsMember
6	AlarmForce Industries Inc.	Member	duration		tu:AlarmForceIndustriesIncMember
7	Range [axis]	Axis	duration		ifrs-full:RangeAxis
8	Ranges [member]	Member	duration		ifrs-full:RangesMember
9	Maximum	Member	duration		ifrs-full:TopOfRangeMember
10	Minimum	Member	duration		ifrs-full:BottomOfRangeMember
11	Business acquisition	LineItems	duration		ifrs-full:DisclosureOfBusinessCombinationsLineItems
12	Ownership interest in businesses acquired (as a percentage)	Concept (Percent)	instant		ifrs-full:PercentageOfVotingEquityInterestsAcquired
13	Percentage of shares remaining that were included in the written put option provided to the non-controlling shareholders	Concept (Percent)	duration		tu:VotingEquityInterestsIncludedInWrittenPutOptionProvidedToShareholdersPercentage
14	Customers, assets and operations of business acquired (as a percentage)	Concept (Percent)	instant		tu:PercentageOfBusinessCustomersAssetsAndOperationsAcquired
15	Cash consideration	Concept (Monetary)	instant	credit	ifrs-full:CashTransferred
16	Equity consideration	Concept (Monetary)	instant	credit	ifrs-full:EquityInterestsOfAcquirer
17	Fair value of non-controlling interest as on acquisition date	Concept (Monetary)	instant	credit	ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate
18	Net identifiable assets acquired	Concept (Monetary)	instant	debit	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
19	Scenario [Axis]	Axis	duration		tu:ScenarioAxis
20	Scenario [Member]	Member	duration		tu:ScenarioMember
21	Forecast	Member	duration		tu:ForecastScenarioMember
22	Non-adjusting events after reporting period [axis]	Axis	duration		ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
23	Non-adjusting events after reporting period [member]	Member	duration		ifrs-full:NonadjustingEventsMember
24	Major Business Combination	Member	duration		ifrs-full:MajorBusinessCombinationMember
25	Subsidiaries [axis]	Axis	duration		ifrs-full:SignificantInvestmentsInSubsidiariesAxis
26	Entity's total for subsidiaries [member]	Member	duration		ifrs-full:EntitysTotalForSubsidiariesMember
27	TELUS International (Cda) Inc.	Member	duration		tu:TelusInternationalCdaIncMember

Model Structure
Network	41805 - Disclosure - intangible assets and goodwill - Intangible assets with indefinite lives and goodwill - spectrum licences and impairment testing (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillIntangibleAssetsWithIndefiniteLivesAndGoodwillSpectrumLicencesAndImpairmentTestingDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	intangible assets and goodwill	Abstract	duration		ifrs-full:DisclosureOfIntangibleAssetsAbstract
2	Disclosure of information for cash-generating units [table]	Table	duration		ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable
3	Intangible assets with indefinite useful life [axis]	Axis	duration		ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeAxis
4	Intangible assets with indefinite lives	Member	duration		ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember
5	Spectrum licences	Member	duration		ifrs-full:GSMLicencesMember
6	Cash-generating units [axis]	Axis	duration		ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
7	Entity's total for cash-generating units [member]	Member	duration		ifrs-full:EntitysTotalForCashgeneratingUnitsMember
8	Wireless	Member	duration		tu:WirelessCashGeneratingUnitMember
9	Wireline	Member	duration		tu:WirelineCashGeneratingUnitMember
10	Levels of fair value hierarchy [axis]	Axis	duration		ifrs-full:LevelsOfFairValueHierarchyAxis
11	All levels of fair value hierarchy [member]	Member	duration		ifrs-full:AllLevelsOfFairValueHierarchyMember
12	Significant unobservable inputs (Level 3)	Member	duration		ifrs-full:Level3OfFairValueHierarchyMember
13	Disclosure of information for cash-generating units	LineItems	duration		ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
14	Intangible assets and goodwill	Abstract	duration		ifrs-full:IntangibleAssetsAndGoodwillAbstract
15	Renewal of spectrum license ( in years)	Concept (Duration)	duration		tu:RenewalOfSpectrumLicenses
16	Intangible assets with indefinite lives	Concept (Monetary)	instant	debit	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLife
17	Goodwill	Concept (Monetary)	instant	debit	ifrs-full:Goodwill
18	Total	Concept (Monetary)	instant	debit	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill
19	Period over which management has projected cash flows	Concept (Duration)	duration		tu:PeriodOverWhichManagementHasProjectedCashFlows
20	Discount rates applied to cash flow projections	Concept (Percent)	instant		ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
21	Growth rates applied to cash flow projections	Concept (Percent)	instant		ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
22	Ownership interest in businesses acquired (as a percentage)	Concept (Percent)	instant		ifrs-full:PercentageOfVotingEquityInterestsAcquired

Model Structure
Network	41901 - Disclosure - leases (Details) (http://www.telus.com/role/DisclosureLeasesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	leases	Abstract	duration		ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract
2	Disclosure of operating leases by lessee	Table	duration		ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
3	Lease Arrangement Type [Axis]	Axis	duration		tu:IfrsLeaseArrangementTypeAxis
4	Lease Arrangement Type [Member]	Member	duration		tu:IfrsLeaseArrangementTypeMember
5	Arms-length lessors	Member	duration		tu:ArmsLengthLessorsMember
6	Related party lessors	Member	duration		tu:RelatedPartyLessorsMember
7	Real estate joint ventures with related parties	Member	duration		tu:RealEstateJointVenturesMember
8	Partners' economic interest in real estate joint ventures with related parties	Member	duration		tu:PartnersInterestInRealEstateJointVenturesMember
9	Classes of assets [axis]	Axis	duration		ifrs-full:ClassesOfAssetsAxis
10	Assets [member]	Member	duration		ifrs-full:ClassesOfAssetsMember
11	Real estate and vehicle	Member	duration		tu:RealEstateAndVehicleMember
12	Leased real estate	Member	duration		tu:LeasedRealEstateMember
13	Office premises	Member	duration		tu:OfficePremisesMember
14	Wireless site leases	Member	duration		tu:WirelessSiteMember
15	Maturity [axis]	Axis	duration		ifrs-full:MaturityAxis
16	Aggregated time bands [member]	Member	duration		ifrs-full:AggregatedTimeBandsMember
17	2 years hence	Member	duration		ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
18	3 years hence	Member	duration		ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
19	4 years hence	Member	duration		ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
20	5 years hence	Member	duration		ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
21	Thereafter	Member	duration		ifrs-full:LaterThanFiveYearsMember
22	1 year hence	Member	duration		ifrs-full:LaterThanOneYearMember
23	Disclosure of operating leases by lessee	LineItems	duration		ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
24	Operating lease expenses	Concept (Monetary)	duration	debit	ifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpense
25	Occupancy costs	Concept (Monetary)	duration	debit	tu:LeasedRealEstateOccupancyCosts
26	Operating leases, future minimum payments due, fiscal year maturity	Abstract	duration		tu:IfrsOperatingLeasesFutureMinimumPaymentsDueAbstract
27	Future minimum lease payments under operating leases	Concept (Monetary)	instant	credit	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
28	Commitments under operating leases for occupancy costs	Concept (Monetary)	instant	credit	tu:CommitmentsUnderOperatingLeasesForOccupancyCosts
29	Future minimum lease payments due under operating leases expressed as a percentage of the total leases	Concept (Percent)	duration		tu:PercentageOfMinimumLeasePaymentsDue
30	Future minimum lease payments due for certain leases expressed as a percentage of total leases	Concept (Percent)	duration		tu:PercentageRelatedToCertainLeases
31	The number of the largest leases in total leases	Concept (Pure)	duration		tu:NumberOfLargestLeases
32	Weighted average term of leases	Concept (Duration)	duration		tu:WeightedAverageTermOfLeases

Model Structure
Network	42001 - Disclosure - other long-term assets (Details) (http://www.telus.com/role/DisclosureOtherLongTermAssetsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other long-term assets	Abstract	duration		tu:OtherNoncurrentAssetsAbstract
2	Pension assets	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
3	Investments	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentHeldtomaturityInvestments
4	Prepaid maintenance	Concept (Monetary)	instant	debit	tu:PrepaidExpenseMaintenanceNonCurrent
5	Real estate joint venture advances	Concept (Monetary)	instant	debit	tu:RealEstateJointVentureAdvancesOtherNonCurrent
6	Real estate joint ventures	Concept (Monetary)	instant	debit	tu:RealEstateJointVentureOtherNonCurrentAssets
7	Other	Concept (Monetary)	instant	debit	tu:OtherNonCurrentAssetsOther
8	Total	Concept (Monetary)	instant	debit	ifrs-full:OtherNoncurrentAssets

Model Structure
Network	42101 - Disclosure - real estate joint ventures - Summarized financial information (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesSummarizedFinancialInformationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	real estate joint ventures	Abstract	duration		ifrs-full:DisclosureOfJointVenturesAbstract
2	Disclosure of joint ventures [table]	Table	duration		ifrs-full:DisclosureOfJointVenturesTable
3	Unconsolidated structured entities [axis]	Axis	duration		ifrs-full:UnconsolidatedStructuredEntitiesAxis
4	Entity's total for unconsolidated structured entities [member]	Member	duration		ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember
5	Real estate joint ventures	Member	duration		ifrs-full:UnconsolidatedStructuredEntitiesMember
6	TELUS Sky real estate joint venture	Member	duration		tu:TELUSSkyRealEstateJointVentureMember
7	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
8	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
9	3.7 mortgage	Member	duration		tu:Mortgage3.7PercentDueSeptember2024Member
10	3.4% senior secured bonds	Member	duration		tu:SeniorSecured3.4PercentBondsDueJuly2025Member
11	real estate joint ventures	LineItems	duration		ifrs-full:DisclosureOfJointVenturesLineItems
12	Number of other partners in the transaction	Concept (Integer)	duration		tu:NumbersOfPartiesInTransaction
13	ifrs-full:AssetsAbstract (terseLabel)	Abstract	duration		ifrs-full:AssetsAbstract
14	Current assets	Abstract	duration		ifrs-full:CurrentAssetsAbstract
15	Cash and temporary investments, net	Concept (Monetary)	instant	debit	ifrs-full:CashAndCashEquivalents
16	Total	Concept (Monetary)	instant	debit	ifrs-full:CurrentAssets
17	Escrowed deposits for tenant inducements and liens	Concept (Monetary)	instant	debit	tu:EscrowedDeposit
18	Sales contract deposits held by arm's-length trustee	Concept (Monetary)	instant	debit	tu:SalesContractDepositsHeldByArmSLengthTrustee
19	Other	Concept (Monetary)	instant	debit	ifrs-full:OtherCurrentAssets
20	Property under development - residential condominiums (subject to sales contracts)	Concept (Monetary)	instant	debit	tu:ResidentialPropertyUnderConstructionOrDevelopment
21	Non-current assets	Abstract	duration		ifrs-full:NoncurrentAssetsAbstract
22	Total	Concept (Monetary)	instant	debit	ifrs-full:NoncurrentAssets
23	Total	Concept (Monetary)	instant	debit	ifrs-full:Assets
24	Property under development - investment property	Concept (Monetary)	instant	debit	ifrs-full:InvestmentPropertyUnderConstructionOrDevelopment
25	Investment property	Concept (Monetary)	instant	debit	ifrs-full:InvestmentProperty
26	LIABILITIES AND OWNERS' EQUITY	Abstract	duration		ifrs-full:EquityAndLiabilitiesAbstract
27	Current liabilities	Abstract	duration		ifrs-full:CurrentLiabilitiesAbstract
28	ifrs-full:TradeAndOtherCurrentPayables (terseLabel)	Concept (Monetary)	instant	credit	ifrs-full:TradeAndOtherCurrentPayables
29	Total	Concept (Monetary)	instant	credit	ifrs-full:CurrentLiabilities
30	Sales contract deposits Payable	Concept (Monetary)	instant	credit	ifrs-full:CurrentDepositsFromCustomers
31	Sales contract deposits Held by arm's-length trustee	Concept (Monetary)	instant	credit	tu:SalesContractDepositLiabilitiesHeldByArmSLengthTrustee
32	Current portion of 3.7% mortgage and senior secured 3.4% bonds	Concept (Monetary)	instant	credit	ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
33	Construction holdback liabilities	Concept (Monetary)	instant	credit	tu:ConstructionHoldbackLiabilities
34	Non-current liabilities	Abstract	duration		ifrs-full:NoncurrentLiabilitiesAbstract
35	Total	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentLiabilities
36	Liabilities	Concept (Monetary)	instant	credit	ifrs-full:Liabilities
37	Construction credit facilities	Concept (Monetary)	instant	credit	ifrs-full:OtherBorrowings
38	3.7% mortgage due September 2024	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentPortionOfNoncurrentSecuredBankLoansReceived
39	Senior secured 3.4% bonds due July 2025	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued
40	Owners' equity	Abstract	duration		ifrs-full:EquityAbstract
41	Common equity	Concept (Monetary)	instant	credit	ifrs-full:EquityAttributableToOwnersOfParent
42	Other partners	Concept (Monetary)	instant	credit	ifrs-full:NoncontrollingInterests
43	ifrs-full:Equity (totalLabel)	Concept (Monetary)	instant	credit	ifrs-full:Equity
44	Total	Concept (Monetary)	instant	credit	ifrs-full:EquityAndLiabilities
45	Interest rate on borrowings	Concept (Percent)	instant		ifrs-full:BorrowingsInterestRate

Model Structure
Network	42102 - Disclosure - real estate joint ventures - Net income (loss) and comprehensive income (loss) (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesNetIncomeLossAndComprehensiveIncomeLossDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	real estate joint ventures	Abstract	duration		ifrs-full:DisclosureOfJointVenturesAbstract
2	Disclosure of joint ventures [table]	Table	duration		ifrs-full:DisclosureOfJointVenturesTable
3	Unconsolidated structured entities [axis]	Axis	duration		ifrs-full:UnconsolidatedStructuredEntitiesAxis
4	Entity's total for unconsolidated structured entities [member]	Member	duration		ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember
5	Real estate joint ventures	Member	duration		ifrs-full:UnconsolidatedStructuredEntitiesMember
6	real estate joint ventures	LineItems	duration		ifrs-full:DisclosureOfJointVenturesLineItems
7	Revenue from investment property	Concept (Monetary)	duration	credit	ifrs-full:RentalIncome
8	Revenue from sale of residential condominiums	Concept (Monetary)	duration	credit	tu:RevenueFromSaleOfResidentialCondominiums
9	Depreciation and amortization	Concept (Monetary)	duration	debit	ifrs-full:DepreciationAndAmortisationExpense
10	ifrs-full:InterestExpense (terseLabel)	Concept (Monetary)	duration	debit	ifrs-full:InterestExpense
11	ifrs-full:ProfitLoss (terseLabel)	Concept (Monetary)	duration	credit	ifrs-full:ProfitLoss
12	ifrs-full:ComprehensiveIncome (label)	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncome
13	Capitalized financing costs	Concept (Monetary)	duration	debit	tu:FinanceCostsCapitalized
14	Provision for income taxes of the partners recognized in net income (loss) and comprehensive income (loss).	Concept (Monetary)	instant	credit	tu:ProvisionForIncomeTaxesOfPartnersIncludedInNetIncomeAndComprehensiveIncome

Model Structure
Network	42103 - Disclosure - real estate joint ventures - Investment activity (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesInvestmentActivityDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	real estate joint ventures	Abstract	duration		ifrs-full:DisclosureOfJointVenturesAbstract
2	Disclosure of joint ventures [table]	Table	duration		ifrs-full:DisclosureOfJointVenturesTable
3	Unconsolidated structured entities [axis]	Axis	duration		ifrs-full:UnconsolidatedStructuredEntitiesAxis
4	Entity's total for unconsolidated structured entities [member]	Member	duration		ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember
5	Real estate joint ventures	Member	duration		ifrs-full:UnconsolidatedStructuredEntitiesMember
6	TELUS Garden real estate joint venture	Member	duration		tu:TELUSGardenRealEstateJointVentureMember
7	real estate joint ventures	LineItems	duration		ifrs-full:DisclosureOfJointVenturesLineItems
8	Related to real estate joint ventures' statements of income and other comprehensive income	Abstract	duration		ifrs-full:ComprehensiveIncomeAttributableToAbstract
9	Comprehensive income (loss) attributable to us	Concept (Monetary)	duration	credit	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
10	Related to real estate joint ventures' statements of financial position	Abstract	duration		tu:RealEstateJointVenturesStatementsOfFinancialPositionAbstract
11	Items not affecting currently reported cash flows	Abstract	duration		ifrs-full:AdjustmentsForReconcileProfitLossAbstract
12	Recognition of gain initially deferred on our real estate initially contributed	Concept (Monetary)	duration	debit	tu:JointVentureRecognitionOfDeferredGainOnRealEstateContributed
13	Construction credit facilities financing costs charged by us and other	Concept (Monetary)	duration	debit	tu:JointVentureConstructionCreditFinancingCostsCharged
14	Cash flows in the current reporting period	Abstract	duration		ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
15	Construction credit facilities amounts advanced	Concept (Monetary)	duration	debit	tu:JointVentureCreditFacilitiesAdvances
16	Construction credit facilities amounts repaid	Concept (Monetary)	duration	credit	tu:JointVentureCreditFacilitiesRepaid
17	Financing costs paid to us	Concept (Monetary)	duration	credit	tu:JointVentureReceiptsFromFinanceCost
18	Repayment of funds advanced	Concept (Monetary)	duration	credit	tu:JointVentureFundsAdvancedRepaid
19	Funds repaid to us and earnings distributed	Concept (Monetary)	duration	credit	tu:JointVentureFundsRepaidAndEarningsDistributed
20	Net increase (decrease)	Concept (Monetary)	duration	debit	tu:JointVentureIncreaseDecrease
21	Real estate joint ventures carrying amounts	Abstract	duration		tu:RealEstateJointVentureCarryingAmountsAbstract
22	Balance, beginning of period	Concept (Monetary)	instant	debit	ifrs-full:InvestmentsInJointVentures
23	ifrs-full:InvestmentsInJointVentures (periodEndLabel)	Concept (Monetary)	instant	debit	ifrs-full:InvestmentsInJointVentures
24	Valuation provision	Concept (Monetary)	duration	credit	tu:InvestmentInJointVentureValuationProvision
25	Mortgage on TELUS Garden residential condominium tower	Concept (Monetary)	instant	credit	tu:MortgageOnProperty
26	Related party revenue from TELUS Garden office tenancy	Concept (Monetary)	duration		ifrs-full:LeasesAsLesseeRelatedPartyTransactions
27	Portion of revenue due to economic interest (as a per cent)	Concept (Percent)	duration		ifrs-full:PercentageOfEntitysRevenue
28	Categories of financial assets [axis]	Axis	duration		ifrs-full:CategoriesOfFinancialAssetsAxis
29	Financial assets, category [member]	Member	duration		ifrs-full:FinancialAssetsCategoryMember
30	Loans and receivables	Member	duration		ifrs-full:LoansAndReceivablesCategoryMember
31	Classes of financial assets [axis]	Axis	duration		ifrs-full:ClassesOfFinancialAssetsAxis
32	Financial assets, class [member]	Member	duration		ifrs-full:FinancialAssetsMember
33	Equity	Member	duration		ifrs-full:EquityInvestmentsMember
34	Counterparties [axis]	Axis	duration		ifrs-full:CounterpartiesAxis
35	Counterparties [member]	Member	duration		ifrs-full:CounterpartiesMember
36	Joint venture partner	Member	duration		tu:JointVenturePartnerMember

Model Structure
Network	42104 - Disclosure - real estate joint ventures - Commitments and contingent liabilities (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesCommitmentsAndContingentLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	real estate joint ventures	Abstract	duration		ifrs-full:DisclosureOfJointVenturesAbstract
2	Disclosure of joint ventures [table]	Table	duration		ifrs-full:DisclosureOfJointVenturesTable
3	Unconsolidated structured entities [axis]	Axis	duration		ifrs-full:UnconsolidatedStructuredEntitiesAxis
4	Entity's total for unconsolidated structured entities [member]	Member	duration		ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember
5	Real estate joint ventures	Member	duration		ifrs-full:UnconsolidatedStructuredEntitiesMember
6	TELUS Sky real estate joint venture	Member	duration		tu:TELUSSkyRealEstateJointVentureMember
7	TELUS Garden real estate joint venture	Member	duration		tu:TELUSGardenRealEstateJointVentureMember
8	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
9	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
10	TELUS Corporation Construction Credit Facility	Member	duration		tu:TelusCorporationConstructionCreditFacilityMember
11	Construction Credit Facility - Other	Member	duration		tu:ConstructionCreditFacilityOtherMember
12	real estate joint ventures	LineItems	duration		ifrs-full:DisclosureOfJointVenturesLineItems
13	Real estate joint venture approximate total capital spending	Concept (Monetary)	duration	debit	tu:RealEstateJointVentureExpectedSpending
14	Contractual capital commitments	Concept (Monetary)	instant	credit	ifrs-full:ContractualCapitalCommitments
15	Number of Canadian financial institution lenders	Concept (Decimal)	duration		tu:NumberOfFinancialInstitutionsLenders
16	Percentage of financing provided	Concept (Percent)	duration		tu:PercentageOfConstructionFinancingProvided
17	Construction financing amount	Concept (Monetary)	duration	credit	tu:AmountOfConstructionFinancing
18	Undrawn	Concept (Monetary)	duration	credit	tu:JointVentureUndrawnCreditFacilitiesProvidedByEntity
19	Advances	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
20	Counterparties [axis]	Axis	duration		ifrs-full:CounterpartiesAxis
21	Counterparties [member]	Member	duration		ifrs-full:CounterpartiesMember
22	Three Canadian financial institutions	Member	duration		tu:ThreeCanadianFinancialInstitutionsMember
23	Two Canadian financial institutions	Member	duration		tu:TwoCanadianFinancialInstitutionsMember

Model Structure
Network	42201 - Disclosure - short-term borrowings (Details) (http://www.telus.com/role/DisclosureShortTermBorrowingsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	short-term borrowings	Abstract	duration		ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	Revolving period securitization agreement	Member	duration		tu:RevolvingPeriodSecuritizationAgreementMember
6	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (label)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
7	Trade receivables that can be sold under the securitization agreement	Concept (Monetary)	instant	debit	tu:TradeReceivableSecuritizationAgreementMaximumCapacity
8	Cash proceeds from monthly sales	Concept (Monetary)	duration	debit	tu:CashProceedsMinimumSalesRequirement
9	Trade receivables sold	Concept (Monetary)	instant	debit	tu:TradeReceivablesHeldForSale
10	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
11	Short-term borrowings	Concept (Monetary)	instant	credit	ifrs-full:ShorttermBorrowings
12	Subsidiaries [axis]	Axis	duration		ifrs-full:SignificantInvestmentsInSubsidiariesAxis
13	Entity's total for subsidiaries [member]	Member	duration		ifrs-full:EntitysTotalForSubsidiariesMember
14	TELUS Communications Inc.	Member	duration		tu:TelusCommunicationIncMember
15	Range [axis]	Axis	duration		ifrs-full:RangeAxis
16	Ranges [member]	Member	duration		ifrs-full:RangesMember
17	Maximum	Member	duration		ifrs-full:TopOfRangeMember

Model Structure
Network	42301 - Disclosure - accounts payable and accrued liabilities (Details) (http://www.telus.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	accounts payable and accrued liabilities	Abstract	duration		ifrs-full:TradeAndOtherPayablesAbstract
2	Accrued liabilities	Concept (Monetary)	instant	credit	tu:AccruedLiabilities
3	Payroll and other employee-related liabilities	Concept (Monetary)	instant	credit	ifrs-full:ShorttermEmployeeBenefitsAccruals
4	Restricted stock units liability	Concept (Monetary)	instant	credit	tu:RestrictedStockUnitsLiability
5	Total	Concept (Monetary)	instant	credit	tu:AccruedAndEmployeeRelatedAndRestrictedStockUnitsLiabilities
6	Trade accounts payable	Concept (Monetary)	instant	credit	ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
7	Interest payable	Concept (Monetary)	instant	credit	ifrs-full:InterestPayable
8	Other	Concept (Monetary)	instant	credit	ifrs-full:OtherLiabilities
9	Total	Concept (Monetary)	instant	credit	ifrs-full:TradeAndOtherCurrentPayables

Model Structure
Network	42401 - Disclosure - advance billings and customer deposits (Details) (http://www.telus.com/role/DisclosureAdvanceBillingsAndCustomerDepositsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	advance billings and customer deposits	Abstract	duration		tu:AdvanceBillingsAndCustomerDepositsAbstract
2	Advance billings	Concept (Monetary)	instant	credit	tu:AdvanceBilling
3	Deferred customer activation and connection fees	Concept (Monetary)	instant	credit	tu:DeferredCustomerActivationAndConnectionFeesCurrentLiabilities
4	Customer deposits	Concept (Monetary)	instant	credit	ifrs-full:DepositsFromCustomers
5	Regulatory deferral accounts	Concept (Monetary)	instant	credit	ifrs-full:RegulatoryDeferralAccountCreditBalances
6	Total	Concept (Monetary)	instant	credit	tu:AdvanceBillingsAndCustomerDeposits

Model Structure
Network	42501 - Disclosure - provisions (Details) (http://www.telus.com/role/DisclosureProvisionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	provisions	Abstract	duration		ifrs-full:DisclosureOfOtherProvisionsAbstract
2	Disclosure of other provisions [table]	Table	duration		ifrs-full:DisclosureOfOtherProvisionsTable
3	Classes of other provisions [axis]	Axis	duration		ifrs-full:ClassesOfProvisionsAxis
4	Other provisions [member]	Member	duration		ifrs-full:OtherProvisionsMember
5	Asset retirement obligation	Member	duration		tu:AssetRetirementObligationMember
6	Employee related	Member	duration		tu:EmployeeRelatedMember
7	Written put options	Member	duration		tu:WrittenPutOptionProvisionMember
8	Other	Member	duration		ifrs-full:MiscellaneousOtherProvisionsMember
9	provisions	LineItems	duration		ifrs-full:DisclosureOfOtherProvisionsLineItems
10	provisions reconciliation	Abstract	duration		ifrs-full:ReconciliationOfChangesInOtherProvisionsAbstract
11	ifrs-full:OtherProvisions (periodStartLabel)	Concept (Monetary)	instant	credit	ifrs-full:OtherProvisions
12	ifrs-full:OtherProvisions (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:OtherProvisions
13	Total	Concept (Monetary)	instant	credit	ifrs-full:OtherProvisions
14	Additions	Concept (Monetary)	duration	credit	ifrs-full:NewProvisionsOtherProvisions
15	Use	Concept (Monetary)	duration	debit	ifrs-full:ProvisionUsedOtherProvisions
16	Reversal	Concept (Monetary)	duration	debit	ifrs-full:UnusedProvisionReversedOtherProvisions
17	Interest effect	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseThroughChangeInInterest
18	Foreign exchange effects	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
19	Current	Concept (Monetary)	instant	credit	tu:OtherProvisionsCurrent
20	Non-current	Concept (Monetary)	instant	credit	tu:OtherProvisionsNonCurrent
21	Share-based compensation netted from employee-related additions	Concept (Monetary)	duration	debit	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
22	Differences of interest effect due to change in discount rates as compared to interest accretion on provisions	Concept (Monetary)	duration	credit	tu:InterestEffectDifferenceDueToDiscountRateOtherProvisions

Model Structure
Network	42601 - Disclosure - long-term debt (Details) (http://www.telus.com/role/DisclosureLongTermDebtDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	TELUS Corporation notes	Member	duration		tu:TelusCorporationNotesMember
6	TELUS Communications Inc. debentures	Member	duration		tu:TelusCommunicationsInc.DebenturesMember
7	TELUS International (Cda) Inc. credit facility	Member	duration		tu:TelusInternationalCdaInc.CreditFacilityMember
8	TELUS Corporation commercial paper	Member	duration		tu:TelusCorporationCommercialPaperMember
9	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
10	Details of long-term debt	Abstract	duration		tu:DetailsOfLongTermDebtAbstract
11	tu:LongTermBorrowingsCurrentAndNonCurrent (totalLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
12	Current	Concept (Monetary)	instant	credit	ifrs-full:CurrentPortionOfLongtermBorrowings
13	Non-current	Concept (Monetary)	instant	credit	ifrs-full:LongtermBorrowings

Model Structure
Network	42602 - Disclosure - long-term debt - TELUS Corporation notes (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCorporationNotesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	TELUS Corporation notes	Member	duration		tu:TelusCorporationNotesMember
6	4.95% Notes, Series CD	Member	duration		tu:SeriesCd4.95PercentNotesMember
7	5.05% Notes, Series CG	Member	duration		tu:SeriesCg5.05PercentNotesMember
8	5.05% Notes, Series CH	Member	duration		tu:SeriesCh5.05PercentNotesMember
9	3.35% Notes, Series CJ	Member	duration		tu:SeriesCj3.35PercentNotesMember
10	3.35% Notes, Series CK	Member	duration		tu:SeriesCk3.35PercentNotesMember
11	4.40% Notes, Series CL	Member	duration		tu:SeriesCl4.40PercentNotesMember
12	3.60% Notes, Series CM	Member	duration		tu:SeriesCm3.60PercentNotesMember
13	5.15% Notes, Series CN	Member	duration		tu:SeriesCn5.15PercentNotesMember
14	3.20% Notes, Series CO	Member	duration		tu:SeriesCo3.20PercentNotesMember
15	4.85% Notes, Series CP	Member	duration		tu:SeriesCp4.85PercentNotesMember
16	3.75% Notes, Series CQ	Member	duration		tu:SeriesCq3.75PercentNotesMember
17	4.75% Notes, Series CR	Member	duration		tu:SeriesCr4.75PercentNotesMember
18	1.50% Notes, Series CS	Member	duration		tu:SeriesCs1.50PercentNotesMember
19	2.35% Notes, Series CT	Member	duration		tu:SeriesCt2.35PercentNotesMember
20	4.40% Notes, Series CU	Member	duration		tu:SeriesCu4.40PercentNotesMember
21	3.75% Notes, Series CV	Member	duration		tu:SeriesCv3.75PercentNotesMember
22	2.80% U.S. Dollar Notes	Member	duration		tu:U.s.DollarNotes2.80PercentMember
23	3.70% U.S. Dollar Notes	Member	duration		tu:U.s.DollarNotes3.70PercentMember
24	4.70% Notes, Series CW	Member	duration		tu:SeriesCw4.70PercentNotesMember
25	TELUS Corporation notes, all series except for Series CD	Member	duration		tu:TELUSCorpNotesAllSeriesExceptSeriesCDMember
26	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
27	TELUS Corporation notes	Abstract	duration		tu:TELUSCorporationNotesAbstract
28	ifrs-full:BorrowingsInterestRate (terseLabel)	Concept (Percent)	instant		ifrs-full:BorrowingsInterestRate
29	Issued	Concept (String)	duration		tu:IfrsDebtInstrumentIssuedDate
30	Maturity	Concept (String)	duration		tu:IfrsDebtInstrumentMaturityDate
31	Issue price per $1000 increment of debt	Concept (xbrli:decimalItemType)	instant		tu:BorrowingsIssuePrice
32	Effective interest rate	Concept (Percent)	instant		tu:BorrowingsEffectiveInterestRate
33	ifrs-full:NotionalAmount (terseLabel)	Concept (Monetary)	instant		ifrs-full:NotionalAmount
34	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
35	Redemption present value spread - Basis points	Concept (Percent)	instant		tu:BorrowingsRedemptionSpreadBasisPoints
36	Redemption present value spread - Cessation date	Concept (String)	duration		tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate
37	Redemption period	Concept (Duration)	duration		tu:BorrowingsRedemptionPeriod
38	Redemption price percentage	Concept (Percent)	duration		tu:BorrowingsRedemptionPricePercentage
39	Repurchase offer price, expressed as percentage of principal	Concept (Percent)	duration		tu:BorrowingsRepurchasePricePercentage
40	Fixed exchange rate	Concept (Pure)	instant		tu:DerivativesFixedExchangeRate
41	Range [axis]	Axis	duration		ifrs-full:RangeAxis
42	Ranges [member]	Member	duration		ifrs-full:RangesMember
43	Maximum	Member	duration		ifrs-full:TopOfRangeMember
44	Minimum	Member	duration		ifrs-full:BottomOfRangeMember
45	Classes of financial liabilities [axis]	Axis	duration		ifrs-full:ClassesOfFinancialLiabilitiesAxis
46	Financial liabilities, class [member]	Member	duration		ifrs-full:FinancialLiabilitiesMember
47	Foreign exchange derivative	Member	duration		tu:ForeignExchangeDerivativeMember

Model Structure
Network	42603 - Disclosure - long-term debt - TELUS Corporation commercial paper (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCorporationCommercialPaperDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	TELUS Corporation credit facility	Member	duration		tu:TelusCorporationCreditFacilityMember
6	TELUS Corporation commercial paper	Member	duration		tu:TelusCorporationCommercialPaperMember
7	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
8	TELUS Corporation commercial paper	Abstract	duration		tu:TELUSCorporationCommercialPaperAbstract
9	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
10	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	Concept (Monetary)	instant	credit	ifrs-full:CurrentPortionOfLongtermBorrowings
11	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
12	Weighted average interest rate	Concept (Percent)	instant		tu:BorrowingsEffectiveWeightedAverageInterestRate

Model Structure
Network	42604 - Disclosure - long-term debt - TELUS Corporation credit facility (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCorporationCreditFacilityDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	TELUS Corporation credit facility	Member	duration		tu:TelusCorporationCreditFacilityMember
6	TELUS Corporation commercial paper	Member	duration		tu:TelusCorporationCommercialPaperMember
7	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
8	TELUS Corporation credit facility	Abstract	duration		tu:TELUSCorporationCreditFacilityAbstract
9	Number of financial ratio tests	Concept (Integer)	instant		tu:NumberOfFinancialRatioTests
10	Net debt to operating cash flow ratio	Concept (Pure)	instant		tu:RatioOfNetDebtToOperatingCashFlow
11	Operating cash flow to interest expense ratio	Concept (Pure)	instant		tu:RatioOfOperatingCashFlowToInterestExpense
12	Net available	Concept (Monetary)	instant	credit	ifrs-full:UndrawnBorrowingFacilities
13	Gross available	Concept (Monetary)	instant	credit	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
14	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
15	Letters of credit outstanding	Concept (Monetary)	instant	credit	us-gaap:LettersOfCreditOutstandingAmount
16	Range [axis]	Axis	duration		ifrs-full:RangeAxis
17	Ranges [member]	Member	duration		ifrs-full:RangesMember
18	Maximum	Member	duration		ifrs-full:TopOfRangeMember
19	Minimum	Member	duration		ifrs-full:BottomOfRangeMember

Model Structure
Network	42605 - Disclosure - long-term debt - TELUS Communications Inc. debentures (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCommunicationsIncDebenturesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	10.65% Debentures, Series 3	Member	duration		tu:Series310.65PercentDebenturesMember
6	9.65% Debentures, Series 5	Member	duration		tu:Series59.65PercentDebenturesMember
7	8.80% Debentures, Series B	Member	duration		tu:SeriesB8.80PercentDebenturesMember
8	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
9	TELUS Communications Inc. debentures	Abstract	duration		tu:TELUSCommunicationsIncDebenturesAbstract
10	ifrs-full:BorrowingsInterestRate (label)	Concept (Percent)	instant		ifrs-full:BorrowingsInterestRate
11	Issued	Concept (String)	duration		tu:IfrsDebtInstrumentIssuedDate
12	Maturity	Concept (String)	duration		tu:IfrsDebtInstrumentMaturityDate
13	tu:BorrowingsIssuePrice (label)	Concept (xbrli:decimalItemType)	instant		tu:BorrowingsIssuePrice
14	ifrs-full:NotionalAmount (terseLabel)	Concept (Monetary)	instant		ifrs-full:NotionalAmount
15	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
16	Redemption present value spread - Basis points	Concept (Percent)	instant		tu:BorrowingsRedemptionSpreadBasisPoints
17	Period for exchange of debentures	Concept (Duration)	duration		tu:PeriodForExchangeOfDebenturesUnderBorrowings
18	Exchange of debentures	Concept (Monetary)	instant	credit	tu:ExchangeOfDebenturesAmount
19	Redemption of debentures, notice period	Concept (Duration)	duration		tu:RedemptionOfDebenturesNoticePeriod
20	Redemption price percentage	Concept (Percent)	duration		tu:BorrowingsRedemptionPricePercentage

Model Structure
Network	42606 - Disclosure - long-term debt - TELUS International (Cda) Inc. credit facility (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusInternationalCdaIncCreditFacilityDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
4	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
5	TELUS International (Cda) Inc. credit facility	Member	duration		tu:TelusInternationalCdaInc.CreditFacilityMember
6	Revolving component	Member	duration		tu:TelusInternationalCdaIncRevolvingCreditFacilityMember
7	Term loan component	Member	duration		tu:TelusInternationalCdaIncTermLoanMember
8	ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems (terseLabel)	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
9	tu:LongTermBorrowingsCurrentAndNonCurrent (terseLabel)	Concept (Monetary)	instant	credit	tu:LongTermBorrowingsCurrentAndNonCurrent
10	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (terseLabel)	Concept (Monetary)	instant	credit	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
11	Proceeds from borrowings	Concept (Monetary)	duration	debit	ifrs-full:ProceedsFromNoncurrentBorrowings
12	Outstanding	Concept (Monetary)	instant	credit	tu:GrossBorrowings
13	ifrs-full:UndrawnBorrowingFacilities (label)	Concept (Monetary)	instant	credit	ifrs-full:UndrawnBorrowingFacilities
14	Weighted average interest rate	Concept (Percent)	instant		tu:BorrowingsWeightedAverageInterestRate
15	tu:NumberOfFinancialRatioTests (label)	Concept (Integer)	instant		tu:NumberOfFinancialRatioTests
16	Net debt to operating cash flow ratio	Concept (Pure)	instant		tu:RatioOfNetDebtToOperatingCashFlow
17	Operating cash flow to debt service ratio	Concept (Pure)	instant		tu:RatioOfOperatingCashFlowToDebtServiceRatio
18	Percentage of principal advance to repay	Concept (Percent)	duration		tu:PercentageOfPrincipalAdvanceToRepayBorrowings
19	Range [axis]	Axis	duration		ifrs-full:RangeAxis
20	Ranges [member]	Member	duration		ifrs-full:RangesMember
21	Maximum	Member	duration		ifrs-full:TopOfRangeMember
22	Minimum	Member	duration		ifrs-full:BottomOfRangeMember

Model Structure
Network	42607 - Disclosure - long-term debt - Long-term debt maturities - (Details) (http://www.telus.com/role/DisclosureLongTermDebtLongTermDebtMaturitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	long-term debt	Abstract	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
2	Disclosure of detailed information about borrowings [table]	Table	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
3	Long-term debt maturities	LineItems	duration		ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
4	Future cash outflows in respect of long-term debt principal repayments	Concept (Monetary)	instant		ifrs-full:NotionalAmount
5	Future cash outflows in respect of long-term debt principal repayments - Derivative Liabilities	Concept (Monetary)	instant	credit	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities
6	Total	Concept (Monetary)	instant	credit	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities
7	Future cash outflows in respect of associated interest and like carrying costs	Concept (Monetary)	instant	credit	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCosts
8	Future cash outflows in respect of associated interest and like carrying costs - Derivative Liabilities	Concept (Monetary)	instant	credit	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCostsDerivativeLiabilities
9	Total	Concept (Monetary)	instant	credit	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCostsIncludingDerivativeLiabilities
10	Undiscounted contractual maturities	Concept (Monetary)	instant	credit	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
11	Undiscounted contractual maturities - Derivative Liabilities, Receive	Concept (Monetary)	instant	debit	tu:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchangedDerivativeReceive
12	Undiscounted contractual maturities - Derivative Liabilities, Pay	Concept (Monetary)	instant	credit	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged
13	Total	Concept (Monetary)	instant	credit	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows
14	Classes of financial liabilities [axis]	Axis	duration		ifrs-full:ClassesOfFinancialLiabilitiesAxis
15	Financial liabilities, class [member]	Member	duration		ifrs-full:FinancialLiabilitiesMember
16	Long-term debt	Member	duration		ifrs-full:LongtermBorrowingsMember
17	Composite long-term debt	Member	duration		tu:LongTermDebtNetOfDerivativeImpactMember
18	Derivative Liability Receive	Member	duration		tu:DerivativeLiabilitiesReceivableMember
19	Derivative Liability Pay	Member	duration		tu:DerivativeLiabilitiesPayableMember
20	Maturity [axis]	Axis	duration		ifrs-full:MaturityAxis
21	Aggregated time bands [member]	Member	duration		ifrs-full:AggregatedTimeBandsMember
22	First year	Member	duration		ifrs-full:NotLaterThanOneYearMember
23	2 years hence	Member	duration		ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
24	3 years hence	Member	duration		ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
25	4 years hence	Member	duration		ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
26	5 years hence	Member	duration		ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
27	Thereafter	Member	duration		ifrs-full:LaterThanFiveYearsMember
28	Currency [Axis]	Axis	duration		us-gaap:CurrencyAxis
29	All Currencies [Domain]	Member	duration		currency:AllCurrenciesDomain
30	U.S. Dollars	Member	duration		currency:USD
31	Cdn. Dollars	Member	duration		currency:CAD

Model Structure
Network	42701 - Disclosure - other long-term liabilities (Details) (http://www.telus.com/role/DisclosureOtherLongTermLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	other long-term liabilities	Abstract	duration		ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract
2	Pension and other post-employment benefit liabilities	Concept (Monetary)	instant	credit	ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
3	Deferred revenues	Concept (Monetary)	instant	credit	ifrs-full:DeferredIncome
4	Restricted stock unit and deferred share unit liabilities	Concept (Monetary)	instant	credit	tu:NonCurrentRestrictedStockUnitsAndDeferredShareUnitsLiability
5	Derivative liabilities	Concept (Monetary)	instant	credit	ifrs-full:DerivativeFinancialLiabilities
6	Other	Concept (Monetary)	instant	credit	tu:NonCurrentOtherLiability
7	Subtotal	Concept (Monetary)	instant	credit	tu:OtherNonCurrentLiabilityBeforeDeferredCustomerActivationAndConnectionFees
8	Deferred customer activation and connection fees	Concept (Monetary)	instant	credit	tu:DeferredCustomerActivationAndConnectionFeesOtherLongTermLiabilities
9	Other long-term liabilities	Concept (Monetary)	instant	credit	ifrs-full:OtherNoncurrentLiabilities

Model Structure
Network	42801 - Disclosure - Common Share capital (Details) (http://www.telus.com/role/DisclosureCommonShareCapitalDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	Common Share capital	Abstract	duration		ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
2	Disclosure of classes of share capital [table]	Table	duration		ifrs-full:DisclosureOfClassesOfShareCapitalTable
3	Classes of share capital [axis]	Axis	duration		ifrs-full:ClassesOfShareCapitalAxis
4	Share capital [member]	Member	duration		ifrs-full:ClassesOfShareCapitalMember
5	First preferred shares	Member	duration		tu:FirstPreferredSharesMember
6	Second Preferred Shares	Member	duration		tu:SecondPreferredSharesMember
7	Common Shares	Member	duration		ifrs-full:OrdinarySharesMember
8	Normal Course Issuer Bid Period [Axis]	Axis	duration		tu:NormalCourseIssuerBidPeriodAxis
9	Normal course issuer bid period [member]	Member	duration		tu:NormalCourseIssuerBidPeriodMember
10	September 15, 2015 - September 14, 2016	Member	duration		tu:September152015September142016Member
11	September 30, 2016 - September 29, 2017	Member	duration		tu:September302016September292017Member
12	Range [axis]	Axis	duration		ifrs-full:RangeAxis
13	Ranges [member]	Member	duration		ifrs-full:RangesMember
14	Maximum	Member	duration		ifrs-full:TopOfRangeMember
15	Common Share capital	LineItems	duration		ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
16	Shares authorized	Concept (Shares)	instant		ifrs-full:NumberOfSharesAuthorised
17	Number of votes per common share	Concept (Integer)	duration		tu:NumberOfVotePerCommonShare
18	Minimum percentage of common shares issued and outstanding owned by Canadians	Concept (Percent)	duration		tu:MinimumPercentageOfCommonSharesIssuedAndOutstandingOwnedByCanadians
19	Common shares reserved for issuance	Concept (Shares)	instant		ifrs-full:SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares
20	Purchase of common shares related to normal course issuer bid	Concept (Shares)	duration		tu:PurchaseOfCommonSharesRelatedToNormalCourseIssuerBid
21	Cost of purchase of common shares related to normal course issuer bid	Concept (Monetary)	duration	debit	tu:CostOfPurchaseOfCommonSharesRelatedToNormalCourseIssuerBid
22	Cost of purchase of common shares related to employee benefit plan trust transactions	Concept (Monetary)	duration	debit	tu:CostOfPurchaseOfCommonSharesRelatedToEmployeeBenefitPlanTrustTransactions
23	Total	Concept (Shares)	duration		tu:PurchaseOfTreasury
24	Total	Concept (Monetary)	duration	debit	ifrs-full:PurchaseOfTreasuryShares

Model Structure
Network	42901 - Disclosure - contingent liabilities (Details) (http://www.telus.com/role/DisclosureContingentLiabilitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Name
1	contingent liabilities	Abstract	duration	ifrs-full:DisclosureOfContingentLiabilitiesAbstract
2	Disclosure of contingent liabilities [table]	Table	duration	ifrs-full:DisclosureOfContingentLiabilitiesTable
3	Classes of contingent liabilities [axis]	Axis	duration	ifrs-full:ClassesOfContingentLiabilitiesAxis
4	Contingent liabilities [member]	Member	duration	ifrs-full:ContingentLiabilitiesMember
5	Claims and lawsuits	Member	duration	ifrs-full:LegalProceedingsContingentLiabilityMember
6	Concentration of labour	Member	duration	tu:ConcentrationOfLabourMember
7	Litigation Case [Axis]	Axis	duration	tu:IfrsLitigationCaseAxis
8	Litigation Case Type [Domain]	Member	duration	tu:IfrsLitigationCaseTypeDomain
9	System access fee class actions	Member	duration	tu:SystemAccessFeeClassActionsMember
10	4G LTE Network patent infringement claim	Member	duration	tu:Network4gltePatentInfringementClaimMember
11	Disclosure of contingent liabilities [line items]	LineItems	duration	ifrs-full:DisclosureOfContingentLiabilitiesLineItems
12	Claims and lawsuits	Abstract	duration	tu:ContingentLiabilitiesClaimsAndLawsuitsAbstract
13	Class action lawsuits filed in connection with collection of system access fees	Concept (Decimal)	duration	tu:ClassActionLawsuitsRelatedToSystemAccessFees
14	Number of provinces	Concept (Decimal)	duration	tu:NumberOfProvinces
15	Number of class action lawsuits that were certified	Concept (Decimal)	duration	tu:NumberOfClassActionLawsuitsCertified
16	Number of third-party patents involved in patent infringement claim	Concept (Decimal)	duration	tu:PatentInfringementClaimNumberOfThirdPartyPatents
17	Contingent liability amount	Concept (Monetary)	instant	ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
18	Concentration of labour	Abstract	duration	tu:ContingentLiabilitiesConcentrationOfLabourAbstract
19	Employees covered under the collective agreement (as a per cent)	Concept (Percent)	instant	tu:PercentageEmployeesCoveredUnderCollectiveAgreement
20	Collective agreement duration (in years)	Concept (Duration)	duration	tu:CollectiveAgreementDuration

Model Structure
Network	43001 - Disclosure - related party transactions (Details) (http://www.telus.com/role/DisclosureRelatedPartyTransactionsDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	related party transactions	Abstract	duration		ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
2	Disclosure of transactions between related parties [table]	Table	duration		ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
3	Types of share-based payment arrangements [axis]	Axis	duration		ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
4	Share-based payment arrangements [member]	Member	duration		ifrs-full:SharebasedPaymentArrangementsMember
5	Restricted stock units	Member	duration		tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember
6	Share options	Member	duration		tu:KeyManagementPersonnelShareOptionsMember
7	Directors' Deferred Share Unit Plan	Member	duration		tu:DirectorsDeferredShareUnitPlanMember
8	Range [axis]	Axis	duration		ifrs-full:RangeAxis
9	Ranges [member]	Member	duration		ifrs-full:RangesMember
10	Maximum	Member	duration		ifrs-full:TopOfRangeMember
11	Minimum	Member	duration		ifrs-full:BottomOfRangeMember
12	Categories of related parties [axis]	Axis	duration		ifrs-full:CategoriesOfRelatedPartiesAxis
13	Entity's total for related parties [member]	Member	duration		ifrs-full:EntitysTotalForRelatedPartiesMember
14	Key management personnel	Member	duration		ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
15	Transactions with key management personnel	LineItems	duration		ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
16	Short-term benefits	Concept (Monetary)	duration	debit	ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
17	Post-employment pension and other benefits	Concept (Monetary)	duration	debit	ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
18	Share-based compensation	Concept (Monetary)	duration	debit	ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
19	Total	Concept (Monetary)	duration	debit	ifrs-full:KeyManagementPersonnelCompensation
20	Effect on share-based compensation expense of derivatives used to manage costs	Concept (Monetary)	duration	debit	tu:KeyManagementPersonnelCompensationShareBasedPaymentDerivativeEffect
21	Amount of share-based compensation expense (recovery) included in restructuring costs	Concept (Monetary)	duration	debit	tu:KeyManagementPersonnelCompensationShareBasedPaymentIncludedInRestructuringCosts
22	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (terseLabel)	Concept (Decimal)	duration		ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
23	Notional value of units awarded in period	Concept (Monetary)	duration	debit	tu:NotionalValueOfInstrumentsOtherEquityInstrumentsGranted
24	Grant-date fair value of units awarded in period	Concept (Monetary)	instant	credit	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
25	Number of share options granted and outstanding, end of period	Concept (Decimal)	instant		ifrs-full:NumberOfOutstandingShareOptions
26	Number of options exercised during the period	Concept (Decimal)	duration		ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
27	Intrinsic value of options exercised during the period	Concept (Monetary)	instant	credit	ifrs-full:IntrinsicValueOfLiabilitiesFromSharebasedPaymentTransactionsForWhichCounterpartysRightToCashOrOtherAssetsVested2011
28	Weighted average share price of options at the date of exercise	Concept (Monetary)	duration		ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
29	Liability amounts accrued for share-based compensation awards to key management personnel	Abstract	duration		tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnitsAndDeferredShareUnitsAbstract
30	Restricted stock units	Concept (Monetary)	instant	credit	tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnits
31	Deferred share units	Concept (Monetary)	instant	credit	tu:KeyManagerialPersonnelLiabilitiesAccruedForDeferredShareUnits
32	Total	Concept (Monetary)	instant	credit	tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnitsAndDeferredShareUnits
33	Deferred share units paid out	Concept (Monetary)	duration	credit	tu:KeyManagerialPersonnelDeferredShareUnitsPaidOut
34	Number of months' base salary considered for severance payments	Concept (Duration)	duration		tu:KeyManagerialPersonnelSeverancePaymentsNumberOfMonthsBaseSalaryConsidered
35	Annual cash bonus as a percentage of base salary upon termination without cause	Concept (Percent)	duration		tu:KeyManagerialPersonnelSeverancePaymentsAnnualCashBonusPercentage
36	Transactions with defined benefit pension plans	Abstract	duration		tu:TransactionsWithDefinedBenefitPensionPlansAbstract
37	Charges for management and administrative services to our defined benefit pension plans	Concept (Monetary)	duration	debit	tu:DefinedBenefitPlansManagementAndAdministrativeServiceCharges

Model Structure
Network	43101 - Disclosure - additional statement of cash flow information (Details) (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformationDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	additional statement of cash flow information	Abstract	duration		tu:DisclosureOfAdditionalStatementOfCashFlowInformationAbstract
2	Net change in non-cash operating working capital	Abstract	duration		tu:NetChangeInNonCashOperatingWorkingCapitalAbstract
3	Accounts receivable	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
4	Inventories	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
5	Prepaid expenses	Concept (Monetary)	duration	debit	tu:AdjustmentsForDecreaseIncreaseInPrepaidExpenses
6	Accounts payable and accrued liabilities	Concept (Monetary)	duration	debit	tu:IncreaseDecreaseAccountsPayableAndAccruedLiabilities
7	Income and other taxes receivable and payable, net	Concept (Monetary)	duration	debit	tu:IncreaseDecreaseAccruedTaxesPayable
8	Advance billings and customer deposits	Concept (Monetary)	duration	debit	tu:IncreaseDecreaseCustomerAdvancesAndDeposits
9	Provisions	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForProvisions
10	Total	Concept (Monetary)	duration	debit	ifrs-full:AdjustmentsForReconcileProfitLoss
11	Cash payments for capital assets, excluding spectrum licences	Abstract	duration		tu:CapitalAssetAdditionsExcludingSpectrumLicencesAbstract
12	Property, plant and equipment	Concept (Monetary)	duration	credit	ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
13	Intangible assets	Concept (Monetary)	duration	credit	ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
14	Total	Concept (Monetary)	duration	credit	ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
15	Additions arising from non-monetary transactions	Concept (Monetary)	duration	debit	tu:AdditionalCapitalExpendituresFromNonMonetaryTransactions
16	Capital expenditures	Concept (Monetary)	duration	credit	tu:CapitalExpendituresExcludingNonCash
17	Asset retirement obligations netted (included) in additions	Concept (Monetary)	duration	credit	tu:AssetRetirementObligationsExpenditures
18	Total	Concept (Monetary)	duration	credit	tu:CapitalExpendituresNetAssetRetirementObligations
19	Other non-cash items included above	Abstract	duration		tu:OtherNonCashItemsIncludedAboveAbstract
20	Change in associated non-cash investing working capital	Concept (Monetary)	duration	debit	tu:IncreaseDecreaseInNonCashInvestingWorkingCapital
21	Non-cash change in asset retirement obligation	Concept (Monetary)	duration	debit	tu:NonCashChangeInAssetRetirementObligation
22	Total	Concept (Monetary)	duration	debit	tu:OtherCapitalExpendituresFromNonCashTransactions
23	Total	Concept (Monetary)	duration	credit	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences

Model Structure
Network	43102 - Disclosure - additional statement of cash flow information - Financing activities (Details) (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformationFinancingActivitiesDetails)
Table	(implied)

#	Label	Report Element Class	Period Type	Balance	Name
1	additional statement of cash flow information	Abstract	duration		tu:DisclosureOfAdditionalStatementOfCashFlowInformationAbstract
2	Disclosure of reconciliation of liabilities arising from financing activities [table]	Table	duration		ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
3	Categories of related parties [axis]	Axis	duration		ifrs-full:CategoriesOfRelatedPartiesAxis
4	Entity's total for related parties [member]	Member	duration		ifrs-full:EntitysTotalForRelatedPartiesMember
5	Subsidiary	Member	duration		ifrs-full:SubsidiariesMember
6	Borrowings by name [axis]	Axis	duration		ifrs-full:BorrowingsByNameAxis
7	Borrowings by name [member]	Member	duration		ifrs-full:BorrowingsByNameMember
8	TELUS Corporation notes	Member	duration		tu:TelusCorporationNotesMember
9	TELUS Communications Inc. debentures	Member	duration		tu:TelusCommunicationsInc.DebenturesMember
10	TELUS International (Cda) Inc. credit facility	Member	duration		tu:TelusInternationalCdaInc.CreditFacilityMember
11	TELUS Corporation commercial paper	Member	duration		tu:TelusCorporationCommercialPaperMember
12	Derivatives used to manage currency risks arising from U.S. dollar-denominated long-term debt - liability (asset)	Member	duration		tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember
13	To eliminate effect of gross settlement of derivatives used to manage currency risks arising from U.S. dollar-denominated long-term debt	Member	duration		tu:ToEliminateEffectOfGrossSettlementOfDerivativesUsedToManageCurrencyRisksArisingFromLongTermDebtMember
14	Liabilities arising from financing activities [axis]	Axis	duration		ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
15	Liabilities arising from financing activities [member]	Member	duration		ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
16	Dividends payable to holders of Common Shares	Member	duration		tu:DividendsPayableToHoldersOfCommonSharesMember
17	Dividends reinvested in shares from Treasury	Member	duration		tu:DividendsReinvestedInSharesFromTreasuryMember
18	Dividends payable to holders of Common Shares net of dividends reinvested in shares from treasury	Member	duration		tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember
19	Purchase of Common Shares for cancellation	Member	duration		tu:PurchaseOfCommonSharesForCancellationMember
20	Short-term borrowings	Member	duration		ifrs-full:ShorttermBorrowingsMember
21	Long-term debt	Member	duration		ifrs-full:LongtermBorrowingsMember
22	Long-term debt including derivatives used to manage currency risks arising from U.S. dollar-denominated long-term debt	Member	duration		tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember
23	Disclosure of reconciliation of liabilities arising from financing activities [line items]	LineItems	duration		ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
24	Changes in liabilities arising from financing activities	Abstract	duration		ifrs-full:ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract
25	Beginning	Concept (Monetary)	instant	credit	ifrs-full:LiabilitiesArisingFromFinancingActivities
26	ifrs-full:LiabilitiesArisingFromFinancingActivities (periodEndLabel)	Concept (Monetary)	instant	credit	ifrs-full:LiabilitiesArisingFromFinancingActivities
27	Issued or received	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities
28	Redemptions, repayments or payments	Concept (Monetary)	duration	credit	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities
29	Foreign exchange movement (Note 4(i))	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
30	Other	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities
31	Issue of shares by subsidiary to non-controlling interest	Abstract	duration		tu:IssueOfSharesBySubsidiaryToNoncontrollingInterestAbstract
32	Gross proceeds on share issuance	Abstract	duration		tu:GrossProceedsOnShareIssuanceAbstract
33	Issued or received	Concept (Monetary)	duration	debit	ifrs-full:ProceedsFromIssueOfOrdinaryShares
34	Other	Concept (Monetary)	duration	credit	tu:OtherNonCashChangesToGrossProceedsOnShareIssuance
35	Transaction costs	Abstract	duration		tu:TransactionCostsAbstract
36	Beginning	Concept (Monetary)	instant	credit	tu:ShareIssueRelatedCostPayables
37	tu:ShareIssueRelatedCostPayables (periodEndLabel)	Concept (Monetary)	instant	credit	tu:ShareIssueRelatedCostPayables
38	ifrs-full:PaymentsForShareIssueCosts (negatedLabel)	Concept (Monetary)	duration	credit	ifrs-full:PaymentsForShareIssueCosts
39	Other	Concept (Monetary)	duration	debit	ifrs-full:ShareIssueRelatedCost
40	Income taxes charged directly to contributed surplus	Abstract	duration		tu:IncomeTaxesChargedDirectlyToContributedSurplusAbstract
41	Beginning	Concept (Monetary)	instant	credit	tu:LiabilitiesCurrentAndDeferredTaxRelatingToItemsCreditedChargedDirectlyToEquity
42	tu:LiabilitiesCurrentAndDeferredTaxRelatingToItemsCreditedChargedDirectlyToEquity (periodEndLabel)	Concept (Monetary)	instant	credit	tu:LiabilitiesCurrentAndDeferredTaxRelatingToItemsCreditedChargedDirectlyToEquity
43	Other	Concept (Monetary)	duration	debit	ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
44	Current income tax charge	Concept (Monetary)	duration	debit	ifrs-full:CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
45	Deferred income tax recovery	Concept (Monetary)	duration		ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
46	To eliminate the effect of gross settlement of transaction costs	Abstract	duration		tu:EliminateEffectOfGrossSettlementOfTransactionCostsAbstract
47	Issued or received	Concept (Monetary)	duration	credit	tu:EliminateEffectOfTransactionCostsProceedsFromIssueOfOrdinaryShares
48	Redemptions, repayments or payments	Concept (Monetary)	duration	debit	tu:EliminateEffectOfTransactionCostsPaymentsForIssueOfOrdinaryShares
49	Total	Concept (Monetary)	instant	credit	tu:LiabilitiesChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquity
50	tu:LiabilitiesChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquity (periodEndLabel)	Concept (Monetary)	instant	credit	tu:LiabilitiesChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquity
51	Total	Concept (Monetary)	duration	debit	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries
52	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (negatedLabel)	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
53	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity (negatedLabel)	Concept (Monetary)	duration	credit	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity

Fact Tables

The colours used for the fact values are significant, and have the following meanings:

Reported facts that have been checked by consistency rules are in green
derived (imputed) facts are in blue
inconsistent facts in red
...and the rest (reported but unckecked) are either in gray (if some rule failed to execute) or black (if no rules exist for the fact's concept)

Fact Table
Network	00090 - Document - Document and Entity Information (http://www.telus.com/role/DocumentDocumentAndEntityInformation)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Amendment Flag	false
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Current Fiscal Year End Date	--12-31
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Document Fiscal Period Focus	FY
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Document Fiscal Year Focus	2017
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Document Period End Date	2017-12-31
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Document Type	40-F
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Entity Central Index Key	0000868675
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	Entity Common Stock, Shares Outstanding	594573092	xbrli:shares	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Entity Current Reporting Status	Yes
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Entity Registrant Name	TELUS CORP

Fact Table
Network	00100 - Statement - Consolidated statements of income and other comprehensive income (http://www.telus.com/role/StatementConsolidatedStatementsOfIncomeAndOtherComprehensiveIncome)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustedWeightedAverageShares (label)	593000000	xbrli:shares	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustedWeightedAverageShares (label)	593000000	xbrli:shares	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:BasicEarningsLossPerShare (label)	2.06	iso4217:CAD/xbrli:shares	2
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:BasicEarningsLossPerShare (label)	2.46	iso4217:CAD/xbrli:shares	2
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ComprehensiveIncome (label)	1221000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ComprehensiveIncome (label)	1320000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)	15000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)	23000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1206000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1297000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1564000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1617000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DilutedEarningsLossPerShare (label)	2.06	iso4217:CAD/xbrli:shares	2
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DilutedEarningsLossPerShare (label)	2.46	iso4217:CAD/xbrli:shares	2
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:EmployeeBenefitsExpense (label)	2939000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:EmployeeBenefitsExpense (label)	2595000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:FinanceCosts (label)	520000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:FinanceCosts (label)	573000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsNetOfTax (label)	0	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:GainsLossesOnRemeasuringAvailableforsaleFinancialAssetsNetOfTax (label)	-11000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	426000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	553000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OperatingExpense (label)	10617000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OperatingExpense (label)	10699000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncome (label)	-15000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncome (label)	-159000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	-20000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	19000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)	5000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)	5000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)	0	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)	-172000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)	-15000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)	13000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherRevenue (label)	74000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherRevenue (label)	102000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)	13000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)	19000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1223000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1460000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossBeforeTax (label)	1662000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossBeforeTax (label)	2032000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossFromOperatingActivities (label)	2182000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossFromOperatingActivities (label)	2605000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:Revenue (label)	12799000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:Revenue (label)	13304000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:RevenueFromContractsWithCustomers (label)	12725000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:RevenueFromContractsWithCustomers (label)	13202000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12000000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12478000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:RevenueFromSaleOfGoods (label)	725000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:RevenueFromSaleOfGoods (label)	724000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:WeightedAverageShares (label)	592000000	xbrli:shares	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:WeightedAverageShares (label)	593000000	xbrli:shares	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:GoodsAndServicesPurchased (label)	5631000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:GoodsAndServicesPurchased (label)	5935000000	iso4217:CAD	-6

Fact Table
Network	00200 - Statement - Consolidated statements of financial position (http://www.telus.com/role/StatementConsolidatedStatementsOfFinancialPosition)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Assets (label)	27729000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Assets (label)	29548000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Assets (label)	27700000000	iso4217:CAD	-8
4	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:CashAndCashEquivalents (label)	223000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CashAndCashEquivalents (label)	432000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CashAndCashEquivalents (label)	509000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CashAndCashEquivalents (label)	400000000	iso4217:CAD	-8
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentAssets (label)	2474000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentAssets (label)	2884000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentAssets (label)	2400000000	iso4217:CAD	-8
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentDerivativeFinancialAssets (label)	11000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentDerivativeFinancialAssets (label)	18000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	12000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	33000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentDividendPayables (label)	284000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentDividendPayables (label)	299000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentDividendPayables (label)	300000000	iso4217:CAD	-8
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentLiabilities (label)	4951000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentLiabilities (label)	5190000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentLiabilities (label)	5000000000	iso4217:CAD	-8
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1327000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1404000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1300000000	iso4217:CAD	-8
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentPrepayments (label)	233000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentPrepayments (label)	260000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentPrepayments (label)	200000000	iso4217:CAD	-8
27	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentProvisions (label)	124000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentProvisions (label)	78000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentProvisions (label)	100000000	iso4217:CAD	-8
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentTaxAssetsCurrent (label)	9000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentTaxAssetsCurrent (label)	96000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentTaxLiabilitiesCurrent (label)	37000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentTaxLiabilitiesCurrent (label)	34000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:DeferredTaxLiabilities (label)	2107000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:DeferredTaxLiabilities (label)	2500000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:DeferredTaxLiabilities (label)	2100000000	iso4217:CAD	-8
37	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:Equity (label)	7672000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Equity (label)	7936000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Equity (label)	8263000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Equity (label)	7900000000	iso4217:CAD	-8
41	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:EquityAndLiabilities (label)	27729000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:EquityAndLiabilities (label)	29548000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:EquityAndLiabilities (label)	27700000000	iso4217:CAD	-8
44	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:EquityAttributableToOwnersOfParent (label)	7917000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:EquityAttributableToOwnersOfParent (label)	8221000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:EstimatedFinancialEffectOfContingentLiabilities (label)	null	iso4217:CAD
47	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:EstimatedFinancialEffectOfContingentLiabilities (label)	null	iso4217:CAD
48	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Goodwill (label)	3787000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Goodwill (label)	4217000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Goodwill (label)	3800000000	iso4217:CAD	-8
51	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10364000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10658000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10400000000	iso4217:CAD	-8
54	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Liabilities (label)	19793000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Liabilities (label)	21285000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Liabilities (label)	19800000000	iso4217:CAD	-8
57	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:LongtermBorrowings (label)	11604000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:LongtermBorrowings (label)	12256000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:LongtermBorrowings (label)	11600000000	iso4217:CAD	-8
60	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Merchandise (label)	318000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Merchandise (label)	378000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Merchandise (label)	300000000	iso4217:CAD	-8
63	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncontrollingInterests (label)	19000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncontrollingInterests (label)	42000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentAssets (label)	25255000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentAssets (label)	26664000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:NoncurrentAssets (label)	25300000000	iso4217:CAD	-8
68	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentLiabilities (label)	14842000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentLiabilities (label)	16095000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:NoncurrentLiabilities (label)	14800000000	iso4217:CAD	-8
71	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentProvisions (label)	395000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentProvisions (label)	492000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:NoncurrentProvisions (label)	400000000	iso4217:CAD	-8
74	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherNoncurrentAssets (label)	640000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherNoncurrentAssets (label)	421000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:OtherNoncurrentAssets (label)	600000000	iso4217:CAD	-8
77	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherNoncurrentLiabilities (label)	736000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherNoncurrentLiabilities (label)	847000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:OtherNoncurrentLiabilities (label)	700000000	iso4217:CAD	-8
80	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:PropertyPlantAndEquipment (label)	10464000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:PropertyPlantAndEquipment (label)	11368000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:PropertyPlantAndEquipment (label)	10500000000	iso4217:CAD	-8
83	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-8
86	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2330000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2460000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2400000000	iso4217:CAD	-8
89	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1471000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1623000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1500000000	iso4217:CAD	-8
92	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AdvanceBillingsAndCustomerDeposits (label)	737000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AdvanceBillingsAndCustomerDeposits (label)	782000000	iso4217:CAD	-6
94	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	tu:AdvanceBillingsAndCustomerDeposits (label)	800000000	iso4217:CAD	-8

Fact Table
Network	00300 - Statement - Consolidated statements of changes in owners' equity (http://www.telus.com/role/StatementConsolidatedStatementsOfChangesInOwnersEquity)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	ifrs-full:CancellationOfTreasuryShares (label)	41000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:CancellationOfTreasuryShares (label)	41000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:CancellationOfTreasuryShares (label)	44000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:CancellationOfTreasuryShares (label)	-3000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:EquityMember (label)	ifrs-full:Equity (label)	7672000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:Equity (label)	59000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AdditionalPaidinCapitalMember (label)	ifrs-full:Equity (label)	135000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:Equity (label)	7672000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:Equity (label)	5050000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:Equity (label)	2428000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EquityMember (label)	ifrs-full:Equity (label)	7936000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:Equity (label)	42000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AdditionalPaidinCapitalMember (label)	ifrs-full:Equity (label)	372000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:Equity (label)	7917000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:Equity (label)	5029000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:Equity (label)	19000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:Equity (label)	2474000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EquityMember (label)	ifrs-full:Equity (label)	8263000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:Equity (label)	51000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AdditionalPaidinCapitalMember (label)	ifrs-full:Equity (label)	370000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:Equity (label)	8221000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:Equity (label)	5205000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:Equity (label)	42000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:Equity (label)	2595000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EquityMember (label)	ifrs-full:Equity (label)	7900000000	iso4217:CAD	-8
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	243000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AdditionalPaidinCapitalMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	239000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	239000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	4000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityMember (label)	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity (label)	3000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity (label)	3000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity (label)	3000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:NumberOfSharesOutstanding (label)	594000000	xbrli:shares	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:NumberOfSharesOutstanding (label)	590000000	xbrli:shares	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:NumberOfSharesOutstanding (label)	595000000	xbrli:shares	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-15000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-17000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-17000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:OtherComprehensiveIncome (label)	2000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-159000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:OtherComprehensiveIncome (label)	9000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-163000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:OtherComprehensiveIncome (label)	4000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-172000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:ProfitLoss (label)	1223000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:ProfitLoss (label)	13000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:ProfitLoss (label)	1223000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityMember (label)	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:ProfitLoss (label)	1460000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:ProfitLoss (label)	19000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RetainedEarningsMember (label)	ifrs-full:ProfitLoss (label)	1460000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	ifrs-full:PurchaseOfTreasuryShares (label)	45000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:PurchaseOfTreasuryShares (label)	45000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	ifrs-full:PurchaseOfTreasuryShares (label)	45000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:CommonSharePurchaseNormalCourseIssuerBidShares (label)	4000000	xbrli:shares	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	tu:CommonSharePurchaseNormalCourseIssuerBidValue (label)	165000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	tu:CommonSharePurchaseNormalCourseIssuerBidValue (label)	165000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:CommonSharePurchaseNormalCourseIssuerBidValue (label)	36000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RetainedEarningsMember (label)	tu:CommonSharePurchaseNormalCourseIssuerBidValue (label)	129000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-12-11 to 2017-12-11	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	299000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2016-12-09 to 2016-12-09	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	284000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	1091000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	tu:DividendsDeclared (label)	1091000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RetainedEarningsMember (label)	tu:DividendsDeclared (label)	1091000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	1167000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	tu:DividendsDeclared (label)	1167000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RetainedEarningsMember (label)	tu:DividendsDeclared (label)	1167000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2017-03-10 to 2017-03-10	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	283000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2016-03-11 to 2016-03-11	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	261000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2016-06-10 to 2016-06-10	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	274000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-06-09 to 2017-06-09	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	293000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-09-08 to 2017-09-08	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	292000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2016-09-09 to 2016-09-09	ifrs-full:EquityMember (label)	tu:DividendsDeclared (label)	272000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsShares (label)	2000000	xbrli:shares	-6
76	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityMember (label)	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsValue (label)	71000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsValue (label)	71000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IncreaseDecreaseDividendsReinvestedAndOptionalCashPaymentsValue (label)	71000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureShares (label)	1000000	xbrli:shares	-6
80	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AdditionalPaidinCapitalMember (label)	tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureValue (label)	-2000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureValue (label)	2000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AdditionalPaidinCapitalMember (label)	tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureValue (label)	-2000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IncreaseDecreaseThroughExerciseOfOptionsNetEquitySettlementFeatureValue (label)	2000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IssueOfEquityInBusinessCombinationShares (label)	2000000	xbrli:shares	-6
85	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityMember (label)	tu:IssueOfEquityInBusinessCombinationValue (label)	100000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	tu:IssueOfEquityInBusinessCombinationValue (label)	100000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:IssueOfEquityInBusinessCombinationValue (label)	100000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityMember (label)	tu:LiabilityReleaseAutomaticSharePurchasePlanCommitmentNormalCourseIssuerBid (label)	60000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	tu:LiabilityReleaseAutomaticSharePurchasePlanCommitmentNormalCourseIssuerBid (label)	60000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:LiabilityReleaseAutomaticSharePurchasePlanCommitmentNormalCourseIssuerBid (label)	14000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RetainedEarningsMember (label)	tu:LiabilityReleaseAutomaticSharePurchasePlanCommitmentNormalCourseIssuerBid (label)	46000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:TreasuryStockAcquiredShares (label)	1000000	xbrli:shares	-6
93	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:TreasuryStockRetiredShares (label)	1000000	xbrli:shares	-6

Fact Table
Network	00400 - Statement - Consolidated statements of cash flows (http://www.telus.com/role/StatementConsolidatedStatementsOfCashFlows)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	-42000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	430000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense (label)	2047000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense (label)	2169000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForSharebasedPayments (label)	-2000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForSharebasedPayments (label)	17000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:CashAndCashEquivalents (label)	223000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CashAndCashEquivalents (label)	432000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CashAndCashEquivalents (label)	509000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CashAndCashEquivalents (label)	400000000	iso4217:CAD	-8
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CashFlowsFromUsedInFinancingActivities (label)	-87000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CashFlowsFromUsedInFinancingActivities (label)	-227000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CashFlowsFromUsedInInvestingActivities (label)	-2923000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CashFlowsFromUsedInInvestingActivities (label)	-3643000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CashFlowsFromUsedInOperatingActivities (label)	3219000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CashFlowsFromUsedInOperatingActivities (label)	3947000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DividendsPaidClassifiedAsFinancingActivities (label)	1070000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DividendsPaidClassifiedAsFinancingActivities (label)	1082000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncomeTaxesPaidRefund (label)	600000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxesPaidRefund (label)	191000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents (label)	209000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncreaseDecreaseInCashAndCashEquivalents (label)	77000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncreaseDecreaseInWorkingCapital (label)	71000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncreaseDecreaseInWorkingCapital (label)	142000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:InterestPaidClassifiedAsOperatingActivities (label)	510000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:InterestPaidClassifiedAsOperatingActivities (label)	539000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:InterestReceivedClassifiedAsOperatingActivities (label)	4000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:InterestReceivedClassifiedAsOperatingActivities (label)	7000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)	29000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)	-21000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities (label)	-15000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities (label)	-9000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities (label)	-9000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities (label)	-18000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PaymentsForShareIssueCosts (label)	1000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PaymentsToAcquireOrRedeemEntitysShares (label)	179000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees (label)	71000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees (label)	67000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries (label)	294000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets (label)	3000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets (label)	28000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProceedsFromNoncurrentBorrowings (label)	5726000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProceedsFromNoncurrentBorrowings (label)	6367000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:RepaymentsOfNoncurrentBorrowings (label)	4843000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:RepaymentsOfNoncurrentBorrowings (label)	5502000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:CashPaymentsToAcquireBusinessesNet (label)	90000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:CashPaymentsToAcquireBusinessesNet (label)	564000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PaymentsForSpectrumLicences (label)	145000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PensionAndOtherDefinedBenefitsExpense (label)	93000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PensionAndOtherDefinedBenefitsExpense (label)	82000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences (label)	2752000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences (label)	3081000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:RealEstateJointVentureReceipts (label)	103000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:RealEstateJointVentureReceipts (label)	18000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:RealEstateJointVenturesAdvancesAndContributions (label)	33000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:RealEstateJointVenturesAdvancesAndContributions (label)	26000000	iso4217:CAD	-6

Fact Table
Network	10001 - Disclosure - notes to consolidated financial statements (http://www.telus.com/role/DisclosureNotesToConsolidatedFinancialStatements)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory (label)	DECEMBER 31, 2017 TELUS Corporation is one of Canada’s largest telecommunications companies, providing a wide range of telecommunications services and products, including wireless and wireline voice and data. Data services include: Internet protocol; television; hosting, managed information technology and cloud-based services; healthcare solutions; business process outsourcing; and home security. TELUS Corporation was incorporated under the Company Act (British Columbia) on October 26, 1998, under the name BCT.TELUS Communications Inc. (BCT). On January 31, 1999, pursuant to a court-approved plan of arrangement under the Canada Business Corporations Act among BCT, BC TELECOM Inc. and the former Alberta-based TELUS Corporation (TC), BCT acquired all of the shares of BC TELECOM Inc. and TC in exchange for Common Shares and Non-Voting Shares of BCT, and BC TELECOM Inc. was dissolved. On May 3, 2000, BCT changed its name to TELUS Corporation and in February 2005, TELUS Corporation transitioned under the Business Corporations Act (British Columbia), successor to the Company Act (British Columbia). TELUS Corporation maintains its registered office at Floor 7, 510 West Georgia Street, Vancouver, British Columbia, V6B 0M3. The terms “TELUS”, “we”, “us”, “our” or “ourselves” are used to refer to TELUS Corporation and, where the context of the narrative permits or requires, its subsidiaries.

Fact Table
Network	10101 - Disclosure - summary of significant accounting policies (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory (label)

1summary of significant accounting policies

Our consolidated financial statements are expressed in Canadian dollars. The generally accepted accounting principles that we use are International Financial Reporting Standards as issued by the International Accounting Standards Board (IFRS-IASB) and Canadian generally accepted accounting principles.

Generally accepted accounting principles require that we disclose the accounting policies we have selected in those instances where we have been obligated to choose from among various accounting policies that comply with generally accepted accounting principles. In certain other instances, including those in which no selection among policies is allowed, we are also required to disclose how we have applied certain accounting policies. In the selection and application of accounting policies we consider, among other factors, the fundamental qualitative characteristics of useful financial information, namely relevance and faithful representation. In our assessment, our required accounting policy disclosures are not all equally significant for us, as set out in the accompanying table; their relative significance for us will evolve over time as we do.

These consolidated financial statements for each of the years ended December 31, 2017 and 2016, were authorized by our Board of Directors for issue on February 8, 2018.

		Accounting policy requiring a more significant choice among policies and/or a more significant application of judgment
Accounting policy		Yes	No
General application
(a)	Consolidation		X
(b)	Use of estimates and judgments	X
(c)	Financial instruments — recognition and measurement		X
(d)	Hedge accounting		X
Results of operations focused
(e)	Revenue recognition	X
(f)	Government assistance		X
(g)	Cost of acquisition and advertising costs		X
(h)	Research and development		X
(i)	Depreciation, amortization and impairment	X
(j)	Translation of foreign currencies		X
(k)	Income and other taxes	X
(l)	Share-based compensation		X
(m)	Employee future benefit plans	X
Financial position focused
(n)	Cash and temporary investments, net		X
(o)	Sales of trade receivables		X
(p)	Inventories		X
(q)	Property, plant and equipment; intangible assets	X
(r)	Leases		X
(s)	Investments		X

(a)Consolidation

Our consolidated financial statements include our accounts and the accounts of all of our subsidiaries, the principal one of which is TELUS Communications Inc., in which we have a 100% equity interest. TELUS Communications Inc. includes substantially all of our wireless and wireline operations.

Our financing arrangements and those of our wholly-owned subsidiaries do not impose restrictions on inter-corporate dividends.

On a continuing basis, we review our corporate organization and effect changes as appropriate so as to enhance the value of TELUS Corporation. This process can, and does, affect which of our subsidiaries are considered principal subsidiaries at any particular point in time.

During the year ended December 31, 2016, there was a change in our ownership interest in our TELUS International (Cda) Inc. subsidiary, which encompasses our TELUS International operations, resulting from the issuance of shares to Baring Private Equity Asia for approximately $302 million, exclusive of net transaction costs. We continue to control and consolidate this subsidiary, and the shares it issued to Baring Private Equity Asia are accounted for as a 35% non-controlling interest. Associated with this transaction, an amount equal to 35% of the net book value of the subsidiary has been credited to non-controlling interest in our Consolidated statements of changes in owners’ equity, and the net balance of the proceeds has been credited to contributed surplus. In connection with the issuance of shares to Baring Private Equity Asia, we have also arranged bank financing in the subsidiary company, as set out in Note 26(f).

(b)Use of estimates and judgments

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates, assumptions and judgments that affect: the reported amounts of assets and liabilities at the date of the financial statements; the disclosure of contingent assets and liabilities at the date of the financial statements; and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Estimates

Examples of the significant estimates and assumptions that we make, and their relative significance and degree of difficulty, are set out in the graphic at right.

Significant Estimates and Assumptions

Judgments

Examples of our significant judgments, apart from those involving estimation, include the following:

Assessments about whether line items are sufficiently material to warrant separate presentation in the primary financial statements and, if not, whether they are sufficiently material to warrant separate presentation in the notes to the financial statements. In the normal course, we make changes to our assessments regarding materiality for presentation so that they reflect current economic conditions. Due consideration is given to the view that it is reasonable to expect differing opinions of what is, and is not, material.

In respect of revenue-generating transactions, we must make judgments that affect the timing of the recognition of revenue. See Note 2(b) for significant changes to IFRS-IASB which are not yet effective and have not yet been applied, but which will significantly affect the timing of the recognition of revenue and the classification of revenues presented as either service or equipment revenues.

We must make judgments about when we have satisfied our performance obligations to our customers, either over a period of time or at a point in time. Service revenues are recognized based upon customers’ access to, or usage of, our telecommunications infrastructure; we believe that this method faithfully depicts the transfer of the services, and thus the revenues are recognized as the services are made available and/or rendered. We consider our performance obligations arising from the sale of equipment to have been satisfied when the equipment has been delivered to, and accepted by, the end-user customers (see (e) following).

Principally in the context of revenue-generating transactions involving wireless handsets, we must make judgments about whether third-party re-sellers that deliver equipment to our customers are acting in the transaction as principals or as our agents. Upon due consideration of the relevant indicators, we believe that the decision to consider the re-sellers to be acting, solely for accounting purposes, as our agents is more representative of the economic substance of the transactions, as we are the primary obligor to the end-user customers. The effect of this judgment is that no equipment revenue is recognized upon the transfer of inventory to third-party re-sellers.

The decision to depreciate and amortize any property, plant, equipment and intangible assets that are subject to amortization on a straight-line basis, as we believe that this method reflects the consumption of resources related to the economic lifespan of those assets better than an accelerated method and is more representative of the economic substance of the underlying use of those assets.

The preparation of financial statements in accordance with generally accepted accounting principles requires management to make judgments that affect the financial statement disclosure of information regularly reviewed by our chief operating decision-maker used to make resource allocation decisions and to assess performance (segment information, Note 5). A significant judgment we make is in respect of distinguishing between our wireless and wireline operations and cash flows, such distinction having been significantly affected by the convergence and integration of our wireless and wireline telecommunications infrastructure technology and operations. Less than one-half of the operating expenses included in the segment performance measure currently reported to our chief operating decision-maker are direct costs; judgment, largely based upon historical experience, is applied in apportioning indirect costs which are not objectively distinguishable between our wireless and wireline operations.

Through December 31, 2015, our judgment was that our wireless and wireline telecommunications infrastructure technology and operations had not experienced sufficient convergence to objectively make their respective operations and cash flows practically indistinguishable. The continued build-out of our technology-agnostic fibre-optic infrastructure, in combination with converged edge network technology, has significantly affected this judgment, as has the commercialization of fixed-wireless solutions.

It has become increasingly impractical to objectively distinguish between our wireless and wireline operations and cash flows, and the assets from which those cash flows arise. Our judgment as to whether these operations can continue to be judged to be individual components of the business and discrete operating segments may change.

The increasing impracticality of objectively distinguishing between our wireless and wireline cash flows, and the assets from which those cash flows arise, is evidence of their increasing interdependence; this may result in the unification of the wireless cash-generating unit and the wireline cash-generating unit as a single cash-generating unit for impairment testing purposes in the future. As our business continues to evolve, new cash-generating units may develop.

The view that our spectrum licences granted by Innovation, Science and Economic Development Canada will likely be renewed; that we intend to renew them; that we believe we have the financial and operational ability to renew them; and thus, that they have an indefinite life, as discussed further in Note 18(d).

In connection with the annual impairment testing of intangible assets with indefinite lives and goodwill, there are instances in which we must exercise judgment in allocating our net assets, including shared corporate and administrative assets, to our cash-generating units when determining their carrying amounts. These judgments are necessary because of the convergence that our wireless and wireline telecommunications infrastructure technology and operations have experienced to date, and because of our continuous development. There are instances in which similar judgments must also be made in respect of future capital expenditures in support of both wireless and wireline operations, which are a component of the determination of recoverable amounts used in the annual impairment testing, as discussed further in Note 18(e).

In respect of claims and lawsuits, as discussed further in Note 29(a), the determination of whether an item is a contingent liability or whether an outflow of resources is probable and thus needs to be accounted for as a provision.

(c)Financial instruments — recognition and measurement

In respect of the recognition and measurement of financial instruments, we have adopted the following policies:

	Accounting classification
Financial instrument	Fair value through net income 1, 2	Loans and receivables	Available- for-sale 3	Other financial liabilities	Part of a cash flow hedging relationship 3
Measured at amortized cost
Accounts receivable		X **
Construction credit facilities advances to real estate joint ventures		X **
Short-term obligations				X **
Accounts payable				X **
Provisions				X **
Long-term debt				X **
Measured at fair value
Cash and temporary investments	X *
Long-term investments (not subject to significant influence) 4			X ***
Foreign exchange derivatives	X *				X
Share-based compensation derivatives	X *				X

*	Will be classified as fair value through net income upon application of IFRS 9, Financial Instruments, as discussed further in Note 2(b).
**	Will be classified as amortized cost upon application of IFRS 9, Financial Instruments, as discussed further in Note 2(b).
***	On an investment-by-investment basis, will be classified as either fair value through net income or fair value through other comprehensive income upon application of IFRS 9, Financial Instruments, as discussed further in Note 2(b).
(1)	Classification includes financial instruments held for trading. Certain qualifying financial instruments that are not required to be classified as held for trading may be classified as held for trading if we so choose.
(2)	Unrealized changes in the fair values of financial instruments are included in net income.
(3)	Unrealized changes in the fair values of financial instruments classified as available-for-sale, or the effective portion of unrealized changes in the fair values of financial instruments held for hedging, are included in other comprehensive income.
(4)	Long-term investments over which we do not have significant influence are classified as available-for-sale. In respect of investments in securities for which the fair values can be reliably measured, we determine the classification on an investment-by-investment basis at the time of initial recognition.

Trade receivables that may be sold to an arm’s-length securitization trust are accounted for as loans and receivables. We have selected this classification as the benefits of selecting the available-for-sale classification were not expected to exceed the costs of selecting and implementing that classification.

Long-term investments over which we do not have significant influence are accounted for as available-for-sale. We have selected this classification as we believe that it better reflects management’s investment intentions.

Derivatives that are part of an established and documented cash flow hedging relationship are accounted for as held for hedging. We believe that classification as held for hedging results in a better matching of the change in the fair value of the derivative financial instrument with the risk exposure being hedged.

In respect of hedges of anticipated transactions, hedge gains/losses are included with the expenditure and are expensed when the transaction is recognized in our results of operations. We have selected this method as we believe that it results in a better matching of the hedge gains/losses with the risk exposure being hedged.

Derivatives that are not part of a documented cash flow hedging relationship are accounted for as held for trading and thus are measured at fair value through net income.

Regular-way purchases or sales of financial assets or financial liabilities (purchases or sales that require actual delivery of financial assets or financial liabilities) are recognized on the settlement date. We have selected this method as the benefits of using the trade date method were not expected to exceed the costs of selecting and implementing that method.

Transaction costs, other than in respect of items held for trading, are added to the initial fair value of the acquired financial asset or financial liability. We have selected this method as we believe that it results in a better matching of the transaction costs with the periods in which we benefit from the transaction costs.

(d)Hedge accounting

General

We apply hedge accounting to the financial instruments used to: establish designated currency hedging relationships for certain U.S. dollar-denominated future purchase commitments and debt repayments, as set out in Note 4(a) and (d); and fix the compensation cost arising from specific grants of restricted stock units, as set out in Note 4(f) and discussed further in Note 14(b).

Hedge accounting

The purpose of hedge accounting, in respect of our designated hedging relationships, is to ensure that counterbalancing gains and losses are recognized in the same periods. We have chosen to apply hedge accounting as we believe this is more representative of the economic substance of the underlying transactions.

In order to apply hedge accounting, a high correlation (which indicates effectiveness) is required in the offsetting changes in the risk-associated values of the financial instruments (the hedging items) used to establish the designated hedging relationships and all, or a part, of the asset, liability or transaction having an identified risk exposure that we have taken steps to modify (the hedged items). We assess the anticipated effectiveness of designated hedging relationships at inception and their actual effectiveness for each reporting period thereafter. We consider a designated hedging relationship to be effective if the following critical terms match between the hedging item and the hedged item: the notional amount of the hedging item and the principal amount of the hedged item; maturity dates; payment dates; and interest rate index (if, and as, applicable). As set out in Note 4(i), any ineffectiveness, such as would result from a difference between the notional amount of the hedging item and the principal amount of the hedged item, or from a previously effective designated hedging relationship becoming ineffective, is reflected in the Consolidated statements of income and other comprehensive income as Financing costs if in respect of long-term debt, as Goods and services purchased if in respect of U.S. dollar-denominated future purchase commitments or as Employee benefits expense if in respect of share-based compensation.

Hedging assets and liabilities

In the application of hedge accounting, an amount (the hedge value) is recorded in the Consolidated statements of financial position in respect of the fair value of the hedging items. The net difference, if any, between the amounts recognized in the determination of net income and the amounts necessary to reflect the fair value of the designated cash flow hedging items recorded in the Consolidated statements of financial position is recognized as a component of Other comprehensive income, as set out in Note 11.

In the application of hedge accounting to the compensation cost arising from share-based compensation, the amount recognized in the determination of net income is the amount that counterbalances the difference between the quoted market price of our Common Shares at the statement of financial position date and the price of our Common Shares in the hedging items.

(e)Revenue recognition

General

We earn the majority of our revenues (wireless: network revenues (voice and data); wireline: data revenues (which include: Internet protocol; television; hosting, managed information technology and cloud-based services; business process outsourcing; certain healthcare solutions; and home security) and voice revenues) from access to, and usage of, our telecommunications infrastructure. The majority of the balance of our revenues (wireless equipment and other) arises from providing services and products facilitating access to, and usage of, our telecommunications infrastructure.

We offer complete and integrated solutions to meet our customers’ needs. These solutions may involve deliveries of multiple services and products that occur at different points in time and/or over different periods of time; as referred to in (b), this is a significant judgment for us. As appropriate, these multiple element arrangements are separated into their component accounting units, consideration is measured and allocated among the accounting units based upon their relative fair values (derived using Company-specific objective evidence) and our relevant revenue recognition policies are then applied to the accounting units. (We estimate that approximately two-thirds of our revenues arise from multiple element arrangements.) A limitation cap restricts the consideration allocated to services or products currently transferred in multiple element arrangements to an amount that is not contingent upon either delivering additional items or meeting other specified performance conditions. A new revenue accounting standard, which has not yet been applied but must be adopted by January 1, 2018, prohibits the use of a limitation cap, as discussed further in Note 2.

When we receive no identifiable, separable benefit for consideration given to a customer (e.g. discounts and rebates), the consideration is recorded as a reduction of revenue rather than as an expense.

Multiple contracts with a single customer are normally accounted for as separate arrangements. In instances where multiple contracts are entered into with a customer in a short period of time, the contracts are reviewed as a group to ensure that, as with multiple element arrangements, their relative fair values are appropriate.

Lease accounting is applied to an accounting unit if it conveys to a customer the right to use a specific asset but does not convey the risks and/or benefits of ownership.

Our revenues are recorded net of any value-added and/or sales taxes billed to the customer concurrent with a revenue-generating transaction.

Voice and data

We recognize revenues on an accrual basis and include an estimate of revenues earned but unbilled. Wireless and wireline service revenues are recognized based upon access to, and usage of, our telecommunications infrastructure and upon contract fees.

Advance billings are recorded when billing occurs prior to provision of the associated services; such advance billings are recognized as revenue in the period in which the services are provided. Similarly, and as appropriate, upfront customer activation and connection fees are deferred and recognized over the average expected term of the customer relationship.

We use the liability method of accounting for the amounts of our quality of service rate rebates that arise from the jurisdiction of the Canadian Radio-television and Telecommunications Commission (CRTC).

The CRTC has established a mechanism to subsidize local exchange carriers, such as ourselves, that provide residential basic telephone service to high cost serving areas. The CRTC has determined the per network access line/per band subsidy rate for all local exchange carriers. We recognize the subsidy on an accrual basis by applying the subsidy rate to the number of residential network access lines we provide in high cost serving areas, as discussed further in Note 7. Differences, if any, between interim and final subsidy rates set by the CRTC are accounted for as a change in estimate in the period in which the CRTC finalizes the subsidy rate.

Other and wireless equipment

We recognize product revenues, including amounts related to wireless handsets sold to re-sellers and customer premises equipment, when the products are both delivered to and accepted by the end-user customers, irrespective of which supply channel delivers the product. With respect to wireless handsets sold to re-sellers, we consider ourselves to be the principal and primary obligor to the end-user customers. Revenues from operating leases of equipment are recognized on a systematic and rational basis (normally a straight-line basis) over the term of the lease.

Non-high cost serving area deferral account

In an effort to foster competition for residential basic service in non-high cost serving areas, the concept of a deferral account mechanism was introduced by the CRTC in 2002 as an alternative to mandating price reductions. We use the liability method of accounting for the deferral account. We discharge the deferral account liability by undertaking qualifying actions. We recognize the amortization (over a period no longer than three years) of a proportionate share of the deferral account as qualifying actions are completed. Such amortization is included as a component of government assistance in Other operating income, as set out in Note 7.

(f)Government assistance

We recognize government assistance amounts on an accrual basis as the subsidized services are provided or as the subsidized costs are incurred. As set out in Note 7, government assistance amounts are included in the Consolidated statements of income and other comprehensive income as Other operating income.

(g)Cost of acquisition and advertising costs

The total cost of wireless equipment sold to customers and any commissions and advertising and promotion costs related to initial customer acquisition are expensed as incurred; the cost of equipment we own that is situated at customers’ premises and associated installation costs are capitalized as incurred. Costs of acquiring customers that are expensed are included in the Consolidated statements of income and other comprehensive income as a component of Goods and services purchased, with the exception of amounts paid to our employees, which are included as Employee benefits expense. Costs of advertising production, advertising airtime and advertising space are expensed as incurred.

See Note 2(b) for significant changes to IFRS-IASB which we will apply commencing with our fiscal year ended December 31, 2018, and which will significantly affect the timing of the recognition of costs of acquiring customers.

(h)Research and development

Research and development costs are expensed unless development costs meet certain identifiable criteria for capitalization. Capitalized development costs are amortized over the life of the related commercial production, or in the case of serviceable property, plant and equipment, are included in the appropriate property group and are depreciated over the group’s estimated useful life.

(i)Depreciation, amortization and impairment

Depreciation and amortization

Assets are depreciated on a straight-line basis over their estimated useful lives as determined by a continuing program of asset life studies. Depreciation includes amortization of assets under finance leases and amortization of leasehold improvements. Leasehold improvements are normally amortized over the lesser of their expected average service life or the term of the lease. Intangible assets with finite lives (intangible assets subject to amortization) are amortized on a straight-line basis over their estimated useful lives, which are reviewed at least annually and adjusted as appropriate. As referred to in (b), the use of a straight-line basis of depreciation and amortization is a significant judgment for us.

Estimated useful lives for the majority of our property, plant and equipment subject to depreciation are as follows:

		Estimated useful lives 1
Network assets
Outside plant		17 to 40 years
Inside plant		4 to 25 years
Wireless site equipment		5 to 7 years
Balance of depreciable property, plant and equipment		3 to 40 years

(1)The composite depreciation rate for the year ended December 31, 2017, was 5.0% (2016 — 5.0%). The rate is calculated by dividing depreciation expense by an average of the gross book value of depreciable assets over the reporting period.

Estimated useful lives for the majority of our intangible assets subject to amortization are as follows:

		Estimated useful lives
Wireline subscriber base		25 years
Customer contracts, related customer relationships and leasehold interests		4 to 10 years
Software		2 to 10 years
Access to rights-of-way and other		5 to 30 years

Impairment — general

Impairment testing compares the carrying values of the assets or cash-generating units being tested with their recoverable amounts (the recoverable amount being the greater of an asset’s or a cash-generating unit’s value in use or its fair value less costs to sell); as referred to in (b), this is a significant estimate for us. Impairment losses are immediately recognized to the extent that the carrying value of an asset or cash-generating unit exceeds its recoverable amount. Should the recoverable amounts for impaired assets or cash-generating units subsequently increase, the impairment losses previously recognized (other than in respect of goodwill) may be reversed to the extent that the reversal is not a result of “unwinding of the discount” and that the resulting carrying values do not exceed the carrying values that would have been the result if no impairment losses had been previously recognized.

Impairment — property, plant and equipment; intangible assets subject to amortization

The continuing program of asset life studies considers such items as the timing of technological obsolescence, competitive pressures and future infrastructure utilization plans; these considerations could also indicate that the carrying value of an asset may not be recoverable. If the carrying value of an asset were not considered to be recoverable, an impairment loss would be recorded.

Impairment — intangible assets with indefinite lives; goodwill

The carrying values of intangible assets with indefinite lives and goodwill are periodically tested for impairment. The frequency of the impairment testing is generally the reciprocal of the stability of the relevant events and circumstances, but intangible assets with indefinite lives and goodwill must, at a minimum, be tested annually; we have selected December as our annual test date.

We assess our intangible assets with indefinite lives by comparing the recoverable amounts of our cash-generating units to their carrying values (including the intangible assets with indefinite lives allocated to a cash-generating unit, but excluding any goodwill allocated to a cash-generating unit). To the extent that the carrying value of a cash-generating unit (including the intangible assets with indefinite lives allocated to the cash-generating unit, but excluding any goodwill allocated to the cash-generating unit) exceeds its recoverable amount, the excess amount would be recorded as a reduction in the carrying value of intangible assets with indefinite lives.

Subsequent to assessing intangible assets with indefinite lives, we assess goodwill by comparing the recoverable amounts of cash-generating units to their carrying values (including the intangible assets with indefinite lives and the goodwill allocated to a cash-generating unit). To the extent that the carrying value of a cash-generating unit (including the intangible assets with indefinite lives and the goodwill allocated to the cash-generating unit) exceeds its recoverable amount, the excess amount would first be recorded as a reduction in the carrying value of goodwill and any remainder would be recorded as a reduction in the carrying values of the assets of the cash-generating unit on a pro-rated basis.

(j)Translation of foreign currencies

Trade transactions completed in foreign currencies are translated into Canadian dollars at the rates of exchange prevailing at the time of the transactions. Monetary assets and liabilities denominated in foreign currencies are translated into Canadian dollars at the rate of exchange in effect at the statement of financial position date, with any resulting gain or loss recorded in the Consolidated statements of income and other comprehensive income as a component of Financing costs, as set out in Note 9. Hedge accounting is applied in specific instances, as discussed further in (d) preceding.

We have foreign subsidiaries that do not have the Canadian dollar as their functional currency. Foreign exchange gains and losses arising from the translation of these foreign subsidiaries’ accounts into Canadian dollars subsequent to January 1, 2010, the date of our transition to IFRS-IASB, are reported as a component of other comprehensive income, as set out in Note 11.

(k)Income and other taxes

We follow the liability method of accounting for income taxes; as referred to in (b), this is a significant estimate for us. Under this method, current income taxes are recognized for the estimated income taxes payable for the current year. Deferred income tax assets and liabilities are recognized for temporary differences between the tax and accounting bases of assets and liabilities, and also for any benefits of losses and Investment Tax Credits available to be carried forward to future years for tax purposes that are more likely than not to be realized. The amounts recognized in respect of deferred income tax assets and liabilities are based upon the expected timing of the reversal of temporary differences or the usage of tax losses and the application of the substantively enacted tax rates at the time of reversal or usage.

We account for any changes in substantively enacted income tax rates affecting deferred income tax assets and liabilities in full in the period in which the changes are substantively enacted. We account for changes in the estimates of tax balances for prior years as estimate revisions in the period in which changes in the estimates arise; we have selected this approach as its emphasis on the statement of financial position is more consistent with the liability method of accounting for income taxes.

Our operations are complex and the related tax interpretations, regulations, legislation and jurisprudence are continually changing. As a result, there are usually some tax matters in question that result in uncertain tax positions. We only recognize the income tax benefit of an uncertain tax position when it is more likely than not that the ultimate determination of the tax treatment of the position will result in that benefit being realized. We accrue an amount for interest charges on current tax liabilities that have not been funded, which would include interest and penalties arising from uncertain tax positions. We include such charges in the Consolidated statements of income and other comprehensive income as a component of Financing costs.

Our research and development activities may be eligible to earn Investment Tax Credits, for which the determination of eligibility is a complex matter. We only recognize Investment Tax Credits when there is reasonable assurance that the ultimate determination of the eligibility of our research and development activities will result in the Investment Tax Credits being received, at which time they are accounted for using the cost reduction method, whereby such credits are deducted from the expenditures or assets to which they relate, as set out in Note 10(c).

(l)Share-based compensation

General

When share-based compensation vests in its entirety at one future point in time (cliff vesting), we recognize the expense on a straight-line basis over the vesting period. When share-based compensation vests in tranches (graded vesting), we recognize the expense using the accelerated expense attribution method. An estimate of forfeitures during the vesting period is made at the date of grant of such share-based compensation; this estimate is adjusted to reflect actual experience.

Restricted stock units

In respect of restricted stock units without market performance conditions, as set out in Note 14(b), we accrue a liability equal to the product of the number of vesting restricted stock units multiplied by the fair market value of the corresponding Common Shares at the end of the reporting period (unless hedge accounting is applied, as set out in (d) preceding). Similarly, we accrue a liability for the notional subset of our restricted stock units with market performance conditions using a fair value determined using a Monte Carlo simulation. The expense for restricted stock units that do not ultimately vest is reversed against the expense that was previously recorded in their respect.

Share option awards

A fair value for share option awards is determined at the date of grant and that fair value is recognized in the financial statements. Proceeds arising from the exercise of share option awards are credited to share capital, as are the recognized grant-date fair values of the exercised share option awards.

Share option awards that have a net-equity settlement feature, as set out in Note 14(d), are accounted for as equity instruments. We have selected the equity instrument fair value method of accounting for the net-equity settlement feature as it is consistent with the accounting treatment afforded to the associated share option awards.

(m)Employee future benefit plans

Defined benefit plans

We accrue amounts for our obligations under employee defined benefit plans and the related costs, net of plan assets. The cost of pensions and other retirement benefits earned by employees is actuarially determined using the accrued benefit method pro-rated on service and management’s best estimates of salary escalation and the retirement ages of employees. In the determination of net income, net interest for each plan, which is the product of the plan’s surplus (deficit) multiplied by the discount rate, is included as a component of Financing costs, as set out in Note 9.

An amount reflecting the effect of differences between the discount rate and the actual rate of return on plan assets is included as a component of employee defined benefit plan re-measurements within Other comprehensive income, as set out in Note 11 and Note 15. We determine the maximum economic benefit available from the plans’ assets on the basis of reductions in future contributions to the plans.

On an annual basis, at a minimum, the defined benefit plan key assumptions are assessed and revised as appropriate; as referred to in (b), these are significant estimates for us. When the defined benefit plan key assumptions fluctuate significantly relative to their immediately preceding year-end values, actuarial gains (losses) arising from such significant fluctuations are recognized on an interim basis.

Defined contribution plans

We use defined contribution accounting for the Telecommunication Workers Pension Plan and the British Columbia Public Service Pension Plan, which cover certain of our employees and provide defined benefits to their members. In the absence of any regulations governing the calculation of the share of the underlying financial position and plan performance attributable to each employer-participant, and in the absence of contractual agreements between the plans and the employer-participants related to the financing of any shortfall (or distribution of any surplus), we account for these plans as defined contribution plans in accordance with International Accounting Standard 19, Employee Benefits.

(n)Cash and temporary investments, net

Cash and temporary investments, which may include investments in money market instruments that are purchased three months or less from maturity, are presented net of outstanding items, including cheques written but not cleared by the related banks as at the statement of financial position date. Cash and temporary investments, net, are classified as a liability in the statement of financial position when the total amount of all cheques written but not cleared by the related banks exceeds the amount of cash and temporary investments. When cash and temporary investments, net, are classified as a liability, they may also include overdraft amounts drawn on our bilateral bank facilities, which revolve daily and are discussed further in Note 22.

(o)Sales of trade receivables

Sales of trade receivables in securitization transactions are recognized as collateralized short-term borrowings and thus do not result in our de-recognition of the trade receivables sold.

(p)Inventories

Our inventories primarily consist of wireless handsets, parts and accessories (totalling $320 million (2016 — totalling $266 million)) and communications equipment held for resale. Inventories are valued at the lower of cost and net realizable value, with cost being determined on an average cost basis. Previous write-downs to net realizable value are reversed if there is a subsequent increase in the value of the related inventories. Costs of goods sold for the year ended December 31, 2017, totalled $1.95 billion (2016 — $1.84 billion).

(q)Property, plant and equipment; intangible assets

General

Property, plant and equipment and intangible assets are recorded at historical cost, which for self-constructed property, plant and equipment includes materials, direct labour and applicable overhead costs. For internally developed, internal-use software, the historical cost recorded includes materials, direct labour and direct labour-related costs. Where property, plant and equipment construction projects are of sufficient size and duration, an amount is capitalized for the cost of funds used to finance construction, as set out in Note 9. The rate for calculating the capitalized financing cost is based on our weighted average cost of borrowing experienced during the reporting period.

When we sell property, plant and/or equipment, the net book value is netted against the sale proceeds and the difference, as set out in Note 7, is included in the Consolidated statements of income and other comprehensive income as Other operating income.

Asset retirement obligations

Provisions for liabilities, as set out in Note 25, are recognized for statutory, contractual or legal obligations, normally when incurred, associated with the retirement of property, plant and equipment (primarily certain items of outside plant and wireless site equipment) when those obligations result from the acquisition, construction, development and/or normal operation of the assets; as referred to in (b), this is a significant estimate for us. The obligations are measured initially at fair value, which is determined using present value methodology, and the resulting costs are capitalized as a part of the carrying value of the related asset. In subsequent periods, the liability is adjusted for the accretion of discount, for any changes in the market-based discount rate and for any changes in the amount or timing of the underlying future cash flows. The capitalized asset retirement cost is depreciated on the same basis as the related asset and the discount accretion, as set out in Note 9, is included in the Consolidated statements of income and other comprehensive income as a component of Financing costs.

(r)Leases

Leases are classified as finance or operating depending upon the terms and conditions of the contracts. See Note 2 for significant changes to IFRS-IASB which are not yet effective, but which we will apply in fiscal 2019 and which will significantly affect the timing of the recognition of operating lease expenses and their recognition in the Consolidated statement of financial position, as well as their classification in both the Consolidated statement of income and other comprehensive income and the Consolidated statement of cash flows.

Where we are the lessee, asset values recorded under finance leases are amortized on a straight-line basis over the period of expected use. Obligations recorded under finance leases are reduced by lease payments net of imputed interest.

(s)Investments

We account for our investments in companies over which we have significant influence using the equity method of accounting, whereby the investments are initially recorded at cost and subsequently adjusted to recognize our share of earnings or losses of the investee companies and any earnings distributions received. The excess of the cost of an equity investment over its underlying book value at the date of acquisition, except for goodwill, is amortized over the estimated useful lives of the underlying assets to which the excess cost is attributed.

Similarly, we account for our interests in the real estate joint ventures, discussed further in Note 21, using the equity method of accounting. Unrealized gains and losses from transactions with (including contributions to) the real estate joint ventures are deferred in proportion to our remaining interest in the real estate joint ventures.

We account for our other investments as available-for-sale at their fair values unless they are investment securities that do not have quoted market prices in an active market or do not have other clear and objective evidence of fair value. When we do not account for our available-for-sale investments at their fair values, we use the cost basis of accounting, whereby the investments are initially recorded at cost and earnings from those investments are recognized only to the extent received or receivable. The costs of investments sold or the amounts reclassified from other comprehensive income to earnings are determined on a specific-identification basis.

Unless there is a significant or prolonged decline in the value of an available-for-sale investment, the carrying values of available-for-sale investments are adjusted to their estimated fair values, and the amount of any such adjustment is included in the Consolidated statement of income and other comprehensive income as a component of other comprehensive income. When there is a significant or prolonged decline in the value of an investment, the carrying value of any such investment accounted for using the equity, available-for-sale or cost method is reduced to its estimated fair value, and the amount of any such reduction is included in the Consolidated statement of income and other comprehensive income as Other operating income.

Fact Table
Network	10201 - Disclosure - accounting policy developments (http://www.telus.com/role/DisclosureAccountingPolicyDevelopments)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory (label)

2accounting policy developments

(a)Initial application of standards, interpretations and amendments to standards and interpretations in the reporting period

In January 2016, the International Accounting Standards Board released Amendments to IAS 7, Statement of Cash Flows as a part of its Disclosure Initiative. The amendments are required to be applied for years beginning on or after January 1, 2017; we applied them commencing with the year ended December 31, 2016, as set out in Note 31(b), and such application has had no material effect on our financial performance or disclosure.

Annual Improvements to IFRSs 2012-2014 Cycle are required to be applied for years beginning on or after January 1, 2016, and such application has had no effect on our financial performance or disclosure.

(b)Standards, interpretations and amendments to standards not yet effective and not yet applied

IFRS 9, Financial Instruments, is required to be applied for years beginning on or after January 1, 2018, with retrospective application. The new standard includes a model for the classification and measurement of financial instruments, a single forward-looking “expected loss” impairment model and a reformed approach to hedge accounting. We will make an accounting policy choice relative to impairment, and we will be using the lifetime expected credit loss approach. Based upon current facts and circumstances, we do not expect our financial performance or disclosure to be materially affected by the application of the standard.

IFRS 15, Revenue from Contracts with Customers, is required to be applied for years beginning on or after January 1, 2018, such date reflecting the one-year deferral approved by the International Accounting Standards Board on July 22, 2015; we are retrospectively applying the new standard effective January 1, 2018. The International Accounting Standards Board and the Financial Accounting Standards Board of the United States worked on this joint project to clarify the principles for the recognition of revenue. The new standard was released in May 2014 and supersedes existing standards and interpretations, including IAS 18, Revenue. In April 2016, the International Accounting Standards Board issued Clarifications to IFRS 15, Revenue from Contracts with Customers, clarifying application of some of the more complex aspects of the standard.

The effects of the new standard and the materiality of those effects will vary by industry and entity. Like many other telecommunications companies, we are materially affected by its application, as set out in (c) following, primarily in respect of the timing of revenue recognition, the classification of revenues, and the capitalization of costs of obtaining a contract with a customer (as defined by the new standard).

Revenue — timing of recognition; classification

The timing of revenue recognition and the classification of revenues as either service revenues or equipment revenues will be affected, since the allocation of consideration in multiple element arrangements (solutions for our customers that may involve deliveries of multiple services and products that occur at different points in time and/or over different periods of time) will no longer be affected by the current limitation cap methodology.

The effects of the timing of revenue recognition and the classification of revenue are expected to be most pronounced in our wireless results. Although the measurement of the total revenue recognized over the life of a contract will be largely unaffected by the new standard, the prohibition of the use of the limitation cap methodology will accelerate the recognition of total contract revenue, relative to both the associated cash inflows from customers and our current practice (using the limitation cap methodology). The acceleration of the recognition of contract revenue relative to the associated cash inflows will also result in the recognition of an amount reflecting the resulting difference as a contract asset. Although the underlying transaction economics would not differ, during periods of sustained growth in the number of wireless subscriber connection additions, assuming comparable contract-lifetime per unit cash inflows, revenues would appear to be greater than under the current practice (using the limitation cap methodology). Wireline results arising from transactions that include the initial provision of subsidized equipment or promotional pricing plans will be similarly affected.

Costs of contract acquisition; costs of contract fulfilment — timing of recognition

Similarly, the measurement of the total costs of contract acquisition and contract fulfilment over the life of a contract will be unaffected by the new standard, but the timing of recognition will be. The new standard will result in our wireless and wireline costs of contract acquisition and contract fulfilment, to the extent that they are material, being capitalized and subsequently recognized as an expense over the life of a contract on a rational, systematic basis consistent with the pattern of the transfer of goods or services to which the asset relates. Although the underlying transaction economics would not differ, during periods of sustained growth in the number of customer connection additions, assuming comparable per unit costs of contract acquisition and contract fulfilment, absolute profitability measures would appear to be greater than under the current practice (immediately expensing such costs).

Implementation

With a view to enhancing the clarity, comparability and utility of our financial information post-implementation of the standard, we will apply the standard retrospectively, subject to permitted and elected practical expedients. We are using the following practical expedients provided for in, and transitioning to, the new standard:

No restatement for contracts that were completed as at January 1, 2017, or earlier.

No restatement for contracts that were modified prior to January 1, 2017. The aggregate effect of all such modifications will be reflected when identifying satisfied and unsatisfied performance obligations and the transaction prices to be allocated thereto and when determining the transaction prices.

No disclosure of the aggregate transaction prices allocated to the remaining unfulfilled, or partially unfulfilled, performance obligations for periods ending prior to January 1, 2018.

For purposes of applying the new standard on an ongoing basis, we are using the following practical expedients provided for in the new standard:

No adjustment of the contracted amount of consideration for the effects of financing components when, at the inception of the contract, we expect that the effect of the financing component is not significant at the individual contract level.

No deferral of contract acquisition costs when the amortization period for such costs would be one year or less.

When estimating minimum transaction prices allocated to the remaining unfulfilled, or partially unfulfilled, performance obligations, exclusion of amounts arising from contracts originally expected to have a duration of one year or less, as well as amounts arising from contracts in which we may recognize and bill revenue in an amount that corresponds directly with our completed performance obligations.

For purposes of applying the new standard on an ongoing basis, we must also make incremental judgments in respect of the new standard:

In respect of revenue-generating transactions, we must make judgments about how to determine the transaction prices and how to allocate those amounts amongst the associated performance obligations. It is our judgment that, where applicable, it is most appropriate to use a contract’s minimum transaction price (the “minimum spend” amount required in a contract with a customer) as the contract’s transaction price as it best reflects the enforceable rights and obligations of the contract. The contract’s transaction price is allocated based upon the stand-alone selling prices of the contracted equipment and services included in the minimum transaction price.

We compensate third-party re-sellers and our employees for generating revenues, and we must exercise judgment as to whether such sales-based compensation amounts are costs incurred to obtain contracts with customers that should be capitalized. We believe that compensation amounts tangentially attributable to obtaining a contract with a customer, because the amount of such compensation could be affected in ways other than by simply obtaining the contract, should be expensed as incurred; compensation amounts directly attributable to obtaining a contract with a customer should be capitalized and subsequently amortized on a systematic basis, consistent with the satisfaction of our associated performance obligations.

Judgment must also be exercised in the capitalization of costs incurred to fulfill revenue-generating contracts with customers. Such fulfilment costs are those incurred to set up, activate or otherwise implement services involving access to, or usage of, our telecommunications infrastructure that would not otherwise be capitalized as property, plant and equipment and intangible assets.

In January 2016, the International Accounting Standards Board released IFRS 16, Leases, which is required to be applied for years beginning on or after January 1, 2019, and which supersedes IAS 17, Leases. We are currently assessing the impacts and transition provisions of the new standard; however, we are currently considering applying the new standard retrospectively, effective January 1, 2019. The International Accounting Standards Board and the Financial Accounting Standards Board of the United States worked together to modify the accounting for leases, generally by eliminating lessees’ classification of leases as either operating leases or finance leases and, for IFRS-IASB, introducing a single lessee accounting model.

The most significant effect of the new standard will be the lessee’s recognition of the initial present value of unavoidable future lease payments as lease assets and lease liabilities on the statement of financial position, including those for most leases that would currently be accounted for as operating leases. Both leases with durations of 12 months or less and leases for low-value assets may be exempted.

The measurement of the total lease expense over the term of a lease will be unaffected by the new standard. However, the new standard will result in the timing of lease expense recognition being accelerated for leases which would currently be accounted for as operating leases; the International Accounting Standards Board expects that this effect may be muted by a lessee having a portfolio of leases with varying maturities and lengths of term, and we expect that we will be similarly affected. The presentation on the statement of income and other comprehensive income required by the new standard will result in most non-executory lease expenses being presented as amortization of lease assets and financing costs arising from lease liabilities, rather than as a part of goods and services purchased; reported operating income would thus be higher under the new standard.

Relative to the results of applying the current standard, although actual cash flows will be unaffected, the lessee’s statement of cash flows will reflect increases in cash flows from operating activities offset equally by decreases in cash flows from financing activities. This is the result of the payments of the “principal” component of leases that would currently be accounted for as operating leases being presented as a cash flow use within financing activities under the new standard.

Implementation

As a transitional practical expedient permitted by the new standard, we do not expect to reassess whether contracts are, or contain, leases as at January 1, 2019, using the criteria of the new standard; as at January 1, 2019, only contracts that were previously identified as leases applying IAS 17, Leases and IFRIC 4, Determining whether an Arrangement contains a Lease, will be a part of the transition to the new standard. Only contracts entered into (or changed) after January 1, 2019, will be assessed for being, or containing, leases applying the criteria of the new standard.

(c)Impacts of application of IFRS 15, Revenue from Contracts with Customers

IFRS 15, Revenue from Contracts with Customers, will affect the fiscal 2017 comparative amounts to be reported in our fiscal 2018 Consolidated statements of income and other comprehensive income as follows:

Year ended December 31, 2017 (billions except per share amounts)	As currently reported			IFRS 15 effects			Pro forma
OPERATING REVENUES
Service	$	12.5		$	(1.2	)	$	11.3
Equipment	0.7			1.3			2.0

Revenues arising from contracts with customers	13.2			0.1			13.3
Other operating income	0.1			—			0.1

	13.3			0.1			13.4

OPERATING EXPENSES
Goods and services purchased	5.9			*			5.9
Employee benefits expense	2.6			*			2.6
Depreciation	1.6			—			1.6
Amortization of intangible assets	0.6			—			0.6

	10.7			*			10.7

OPERATING INCOME	2.6			0.1			2.7
Financing costs	0.6			—			0.6

INCOME BEFORE INCOME TAXES	2.0			0.1			2.1
Income taxes	0.5			*			0.5

NET INCOME	1.5			0.1			1.6
OTHER COMPREHENSIVE INCOME	(0.2		)	—			(0.2		)

COMPREHENSIVE INCOME	$	1.3		$	0.1		$	1.4

NET INCOME ATTRIBUTABLE TO:
Common Shares	$	1.5		$	0.1		$	1.6
Non-controlling interests	*			—			*

	$	1.5		$	0.1		$	1.6

COMPREHENSIVE INCOME ATTRIBUTABLE TO:
Common Shares	$	1.3		$	0.1		$	1.4
Non-controlling interests	*			—			*

	$	1.3		$	0.1		$	1.4

NET INCOME PER COMMON SHARE
Basic	$	2.46		$	0.15		$	2.61
Diluted	$	2.46		$	0.15		$	2.61

*Amounts less than $0.1 billion.

The effects of the transition to IFRS 15 on the line items in the preceding table are set out below:

	Amount of IFRS 15 effects (increase (decrease) in billions except per share amounts)
	Allocation of transaction price (affecting timing of revenue recognition)
				Costs incurred to obtain or fulfill a contract with a customer
Year ended December 31, 2017						Total
Operating revenues
Service	$	(1.2	)	$	—	$	(1.2	)
Equipment	$	1.3		$	—	$	1.3
Goods and services purchased	$	*		$	*	$	*
Employee benefits expense	$	—		$	*	$	*
Income taxes	$	*		$	*	$	*
Net income attributable to:
Common Shares	$	0.1		$	*	$	0.1
Net income per Common Share
Basic	$	0.11		$	0.04	$	0.15
Diluted	$	0.11		$	0.04	$	0.15

				Previously, costs incurred to obtain or fulfill a contract with a customer were expensed as incurred. The new standard requires that such costs be capitalized and subsequently recognized as an expense over the life of the contract on a rational, systematic basis consistent with the pattern of the transfer of goods or services to which the asset relates. This has the effect of reducing the costs recognized in the period arising from contracts with customers entered into during the period, offset by the amortization of capitalized costs arising from contracts with customers entered into in previous periods.
	Previously, a “limitation cap” constrained the recognition of revenue in a multiple element arrangement to an amount that was not contingent upon either delivering additional items or meeting other specified performance conditions. The new standard requires that amounts contingently billable and collectible in the future are to be recognized currently as revenue to the extent we have currently satisfied our performance obligations to the customer; this is the new standard’s most significant effect on us. For a contract with a customer, this has the effect of allocating more of the consideration to equipment revenue, which is recognized at the inception of the contract, and less to future service revenue.

*Amounts less than $0.1 billion.

IFRS 15, Revenue from Contracts with Customers, will affect the fiscal 2017 comparative amounts to be reported in our fiscal 2018 Consolidated statements of financial position as follows:

	December 31, 2017							January 1, 2017
As at (billions)	As currently reported		IFRS 15 effects			Pro forma		Excluding effects of IFRS 15		IFRS 15 effects			Pro forma
ASSETS
Current assets
Cash and temporary investments, net	$	0.5	$	—		$	0.5	$	0.4	$	—		$	0.4
Accounts receivable	1.6		*			1.6		1.5		*			1.5
Income and other taxes receivable	0.1		—			0.1		—		—			—
Inventories	0.4		*			0.4		0.3		*			0.3
Contract assets **	—		0.8			0.8		—		0.7			0.7
Prepaid expenses	0.3		0.2			0.5		0.2		0.2			0.4

	2.9		1.0			3.9		2.4		0.9			3.3

Non-current assets
Property, plant and equipment, net	11.4		—			11.4		10.5		—			10.5
Intangible assets, net	10.6		—			10.6		10.4		—			10.4
Goodwill, net	4.2		—			4.2		3.8		—			3.8
Contract assets **	—		0.4			0.4		—		0.3			0.3
Other long-term assets	0.4		0.1			0.5		0.6		0.1			0.7

	26.6		0.5			27.1		25.3		0.4			25.7

	$	29.5	$	1.5		$	31.0	$	27.7	$	1.3		$	29.0

LIABILITIES AND OWNERS’ EQUITY
Current liabilities
Short-term borrowings	$	0.1	$	—		$	0.1	$	0.1	$	—		$	0.1
Accounts payable, accrued liabilities and other	2.4		—			2.4		2.4		—			2.4
Dividends payable	0.3		—			0.3		0.3		—			0.3
Advance billings and customer deposits	0.8		(0.1		)	0.7		0.8		(0.2		)	0.6
Provisions	0.1		—			0.1		0.1		—			0.1
Current maturities of long-term debt	1.4		—			1.4		1.3		—			1.3

	5.1		(0.1		)	5.0		5.0		(0.2		)	4.8

Non-current liabilities
Provisions	0.5		—			0.5		0.4		—			0.4
Long-term debt	12.3		—			12.3		11.6		—			11.6
Other long-term liabilities	0.8		—			0.8		0.7		—			0.7
Deferred income taxes	2.5		0.4			2.9		2.1		0.4			2.5

	16.1		0.4			16.5		14.8		0.4			15.2

Liabilities	21.2		0.3			21.5		19.8		0.2			20.0
Owners’ equity	8.3		1.2			9.5		7.9		1.1			9.0

	$	29.5	$	1.5		$	31.0	$	27.7	$	1.3		$	29.0

*Amounts less than $0.1 billion.

**Will be measured at and classified as amortized cost upon application of IFRS 9, Financial Instruments, as discussed further in (a).

The effects of the transition to IFRS 15 on the line items in the preceding table are set out below:

	Amount of IFRS 15 effects (increase (decrease) in billions)
	Allocation of transaction price (affecting timing of revenue recognition)
							Costs incurred to obtain or fulfill a contract with a customer
											Total
As at	Dec. 31, 2017			Jan. 1, 2017			Dec. 31, 2017		Jan. 1, 2017		Dec. 31, 2017			Jan. 1, 2017
Current assets
Accounts receivable	$	*		$	*		$	—	$	—	$	*		$	*
Inventories	$	*		$	*		$	—	$	—	$	*		$	*
Contract assets, net	$	0.8		$	0.7		$	—	$	—	$	0.8		$	0.7
Prepaid expenses and other	$	—		$	—		$	0.2	$	0.2	$	0.2		$	0.2
Non-current assets
Contract assets, net	$	0.4		$	0.3		$	—	$	—	$	0.4		$	0.3
Other long-term assets	$	—		$	—		$	0.1	$	0.1	$	0.1		$	0.1
Advance billings and customer deposits	$	(0.1	)	$	(0.2	)	$	—	$	—	$	(0.1	)	$	(0.2	)
Deferred income taxes	$	0.3		$	0.3		$	0.1	$	0.1	$	0.4		$	0.4
Common equity
Retained earnings	$	1.0		$	0.9		$	0.2	$	0.2	$	1.2		$	1.1

							Previously, costs incurred to obtain or fulfill a contract with a customer were expensed as incurred. The new standard requires that such costs be capitalized and subsequently recognized as an expense over the life of the contract on a rational, systematic basis consistent with the pattern of the transfer of goods or services to which the asset relates. Increases in the amount of costs capitalized in the period arising from contracts with customers entered into during the period are offset by the amortization of capitalized costs arising from contracts with customers entered into in previous periods.
	Previously, a “limitation cap” constrained the recognition of revenue in a multiple element arrangement to an amount that was not contingent upon either delivering additional items or meeting other specified performance conditions. The new standard requires that amounts contingently billable and collectible in the future are to be recognized currently as revenue to the extent we have currently satisfied our performance obligations to the customer; this is the new standard’s most significant effect on us. The difference between the revenue recognized currently and the amount currently collected/collectible is recognized on the statement of financial position as a contract asset. The contract asset recorded at January 1, 2017, represents revenues that will not have been reflected at any time in our periodic results of operations, but, absent the transition to the new standard, would have been; the effect of this “pulling forward” of revenues is expected to be somewhat muted by the composite ongoing inception, maturation and expiration of millions of multi-year contracts with our customers.

*Amounts less than $0.1 billion.

IFRS 15, Revenue from Contracts with Customers, will affect the fiscal 2017 comparative amounts to be reported in our fiscal 2018 Consolidated statement of cash flows as follows:

Year ended December 31, 2017 (billions)	As currently reported			IFRS 15 effects			Pro forma
OPERATING ACTIVITIES
Net income	$	1.5		$	0.1		$	1.6
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	2.2			—			2.2
Deferred income taxes	0.4			*			0.4
Net employee defined benefit plans expense	0.1			—			0.1
Employer contributions to employee defined benefit plans	(0.1		)	—			(0.1		)
Other	(0.1		)	*			(0.1		)
Net change in non-cash operating working capital	(0.1		)	(0.1		)	(0.2		)

Cash provided by operating activities	$	3.9		$	—		$	3.9

*Amounts less than $0.1 billion.

Fact Table
Network	10301 - Disclosure - capital structure financial policies (http://www.telus.com/role/DisclosureCapitalStructureFinancialPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory (label)

3capital structure financial policies

General

Our objective when managing capital is to maintain a flexible capital structure that optimizes the cost and availability of capital at acceptable risk.

In the management of capital and in its definition, we include common equity (excluding accumulated other comprehensive income), long-term debt (including long-term credit facilities, commercial paper backstopped by long-term credit facilities and any hedging assets or liabilities associated with long-term debt items, net of amounts recognized in accumulated other comprehensive income), cash and temporary investments, and short-term borrowings arising from securitized trade receivables.

We manage our capital structure and make adjustments to it in light of changes in economic conditions and the risk characteristics of our telecommunications infrastructure. In order to maintain or adjust our capital structure, we may adjust the amount of dividends paid to holders of Common Shares, purchase Common Shares for cancellation pursuant to normal course issuer bids, issue new shares, issue new debt, issue new debt to replace existing debt with different characteristics, and/or increase or decrease the amount of trade receivables sold to an arm’s-length securitization trust.

During 2017, our financial objectives, which are reviewed annually, were unchanged from 2016. We believe that our financial objectives are supportive of our long-term strategy.

We monitor capital utilizing a number of measures, including: net debt to earnings before interest, income taxes, depreciation and amortization (EBITDA) — excluding restructuring and other costs ratio; coverage ratios; and dividend payout ratios.

Debt and coverage ratios

Net debt to EBITDA — excluding restructuring and other costs is calculated as net debt at the end of the period divided by 12-month trailing EBITDA — excluding restructuring and other costs. This measure, historically, is substantially similar to the leverage ratio covenant in our credit facilities. Net debt and EBITDA — excluding restructuring and other costs are measures that do not have any standardized meanings prescribed by IFRS-IASB and are therefore unlikely to be comparable to similar measures presented by other companies. The calculation of these measures is set out in the following table. Net debt is one component of a ratio used to determine compliance with debt covenants.

As at, or for the 12-month periods ended, December 31 ($ in millions)	Objective	2017		2016
Components of debt and coverage ratios
Net debt 1		$	13,422	$	12,652
EBITDA — excluding restructuring and other costs 2		$	4,913	$	4,708
Net interest cost 3		$	567	$	566
Debt ratio
Net debt to EBITDA — excluding restructuring and other costs	2.00 – 2.504	2.73		2.69
Coverage ratios
Earnings coverage 5		4.6		4.0
EBITDA — excluding restructuring and other costs interest coverage 6		8.7		8.3

(1)

Net debt is calculated as follows:

As at December 31	Note	2017			2016
Long-term debt	26	$	13,660		$	12,931
Debt issuance costs netted against long-term debt		73			67
Derivative (assets) liabilities, net		93			20
Accumulated other comprehensive income amounts arising from financial instruments used to manage interest rate and currency risks associated with U.S. dollar-denominated long-term debt (excluding tax effects)		5			(34		)
Cash and temporary investments, net		(509		)	(432		)
Short-term borrowings	22	100			100

Net debt		$	13,422		$	12,652

 EBITDA does not have any standardized meaning prescribed by IFRS-IASB and is therefore unlikely to be comparable to similar measures presented by other issuers; we define EBITDA as operating revenues less goods and services purchased and employee benefits expense. We have issued guidance on, and report, EBITDA because it is a key measure that management uses to evaluate the performance of our business, and it is also utilized in measuring compliance with certain debt covenants.

(2)

EBITDA — excluding restructuring and other costs is calculated as follows:

Years ended December 31	Note	2017		2016
EBITDA	5	$	4,774	$	4,229
Restructuring and other costs	16	139		479

EBITDA — excluding restructuring and other costs		$	4,913	$	4,708

(3)

Net interest cost is defined as financing costs, excluding employee defined benefit plans net interest, recoveries on long-term debt prepayment premium and repayment of debt, calculated on a 12-month trailing basis (expenses recorded for long-term debt prepayment premium, if any, are included in net interest cost).

(4)

Our long-term objective range for this ratio is 2.00 — 2.50 times. The ratio as at December 31, 2017, is outside the long-term objective range. We may permit, and have permitted, this ratio to go outside the objective range (for long-term investment opportunities), but we will endeavour to return this ratio to within the objective range in the medium term, as we believe that this range is supportive of our long-term strategy. We are in compliance with our credit facilities leverage ratio covenant, which states that we may not permit our net debt to operating cash flow ratio to exceed 4.00:1.00 (see Note 26(d)); the calculation of the debt ratio is substantially similar to the calculation of the leverage ratio covenant in our credit facilities.

(5)

Earnings coverage is defined as net income before borrowing costs and income tax expense, divided by borrowing costs (interest on long-term debt; interest on short-term borrowings and other; long-term debt prepayment premium), and adding back capitalized interest.

(6)

EBITDA — excluding restructuring and other costs interest coverage is defined as EBITDA — excluding restructuring and other costs, divided by net interest cost. This measure is substantially similar to the coverage ratio covenant in our credit facilities.

Net debt to EBITDA — excluding restructuring and other costs was 2.73 times as at December 31, 2017, up from 2.69 one year earlier. The increase in net debt increased the ratio by 0.16, which was largely offset by growth in EBITDA — excluding restructuring and other costs, which decreased the ratio by 0.12. The earnings coverage ratio for the twelve-month period ended December 31, 2017, was 4.6 times, up from 4.0 times one year earlier. Higher borrowing costs reduced the ratio by 0.1 and higher income before borrowing costs and income taxes increased the ratio by 0.7. The EBITDA — excluding restructuring and other costs interest coverage ratio for the twelve-month period ended December 31, 2017, was 8.7 times, up from 8.3 times one year earlier. Growth in EBITDA — excluding restructuring and other costs increased the ratio by 0.4.

Dividend payout ratio

The dividend payout ratio presented is a historical measure calculated as the sum of the last four quarterly dividends declared per Common Share, as recorded in the financial statements, divided by the sum of basic earnings per share for the most recent four quarters for interim reporting periods (divided by annual basic earnings per share if the reported amount is in respect of a fiscal year). The dividend payout ratio of adjusted net earnings presented, also a historical measure, differs in that it excludes the gain on exchange of wireless spectrum licences, net gains and equity income from real estate joint ventures, provisions related to business combinations, immediately vesting transformative compensation expense, long-term debt prepayment premium and income tax-related adjustments.

For the 12-month periods ended December 31 ($ in millions)	Objective	2017		2016
Dividend payout ratio	65%–75% 1	80	%	89	%
Dividend payout ratio of adjusted net earnings		80	%	77	%

(1)

Our objective range for the dividend payout ratio is 65%—75% of sustainable earnings on a prospective basis; we currently expect that we will be within our target guideline on a prospective basis within the medium term. Adjusted net earnings attributable to Common Shares is calculated as follows:

12-month periods ended December 31	2017			2016
Net income attributable to Common Shares	$	1,460		$	1,223
Gain and net equity income related to real estate redevelopment project, after income taxes	(1		)	(16		)
Gain on exchange of wireless spectrum licences, after income taxes	—			(13		)
Provisions related to business combinations, after income taxes	(22		)	15
Immediately vesting transformative compensation expense, after income taxes	—			224
Income tax-related adjustments	21			(17		)

Adjusted net earnings attributable to Common Shares	$	1,458		$	1,416

Fact Table
Network	10401 - Disclosure - financial instruments (http://www.telus.com/role/DisclosureFinancialInstruments)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfFinancialInstrumentsExplanatory (label)

4financial instruments

(a)Risks — overview

Our financial instruments, and the nature of certain risks to which they may be subject, are set out in the following table.

	Risks
			Market risks
Financial instrument	Credit	Liquidity	Currency	Interest rate	Other price
Measured at amortized cost
Accounts receivable	X		X
Construction credit facilities advances to real estate joint venture				X
Short-term obligations		X	X	X
Accounts payable		X	X
Provisions (including restructuring accounts payable)		X	X		X
Long-term debt		X	X	X
Measured at fair value
Cash and temporary investments	X		X	X
Long-term investments (not subject to significant influence) 1			X		X
Foreign exchange derivatives 2	X	X	X
Share-based compensation derivatives 2	X	X			X

(1)

Long-term investments over which we do not have significant influence are measured at fair value if those fair values can be reliably measured.

(2)

Use of derivative financial instruments is subject to a policy which requires that no derivative transaction is to be entered into for the purpose of establishing a speculative or leveraged position (the corollary being that all derivative transactions are to be entered into for risk management purposes only) and sets criteria for the creditworthiness of the transaction counterparties.

Derivative financial instruments

As set out in Note 1(d), we apply hedge accounting to financial instruments used to establish hedge accounting relationships for U.S. dollar-denominated transactions and to fix the cost of some share-based compensation. We believe that our use of derivative financial instruments for hedging or arbitrage assists us in managing our financing costs and/or lessening the uncertainty associated with our financing or other business activities. Uncertainty associated with currency risk (see (d) following for explanation of how such risk arises and the extent of the risk exposure that we manage) and other price risk (see (f) following for explanation of how such risk arises and the extent of the risk exposure that we manage) is lessened through our use of foreign exchange derivatives and share-based compensation derivatives that effectively swap currency exchange rates and share prices from floating rates and prices to fixed rates and prices. When entering into derivative financial instrument contracts, we seek to align the cash flow timing of the hedging items with that of the hedged items. The effects of the risk management strategy and its application are set out in (i) following.

(b)Credit risk

Excluding credit risk, if any, arising from currency swaps settled on a gross basis, the best representation of our maximum exposure (excluding income tax effects) to credit risk, which is a worst-case scenario and does not reflect results we expect, is set out in the following table:

As at December 31 (millions)	2017		2016
Cash and temporary investments, net	$	509	$	432
Accounts receivable	1,623		1,471
Derivative assets	24		17

	$	2,156	$	1,920

Cash and temporary investments, net

Credit risk associated with cash and temporary investments is managed by ensuring that these financial assets are placed with: governments; major financial institutions that have been accorded strong investment grade ratings by a primary rating agency; and/or other creditworthy counterparties. An ongoing review evaluates changes in the status of counterparties.

Accounts receivable

Credit risk associated with accounts receivable is inherently managed by the size and diversity of our large customer base, which includes substantially all consumer and business sectors in Canada. We follow a program of credit evaluations of customers and limit the amount of credit extended when deemed necessary.

As at December 31, 2017, the weighted average age of customer accounts receivable was 26 days (2016 — 26 days) and the weighted average age of past-due customer accounts receivable was 60 days (2016 — 61 days). Accounts are considered to be past due (in default) when the customers have failed to make the contractually required payments when due, which is generally within 30 days of the billing date. Any late payment charges are levied at an industry-based market or negotiated rate on outstanding non-current customer account balances.

		2017							2016
As at December 31 (millions)	Note	Gross		Allowance			Net 1		Gross		Allowance			Net 1
Customer accounts receivable, net of allowance for doubtful accounts
Less than 30 days past billing date		$	909	$	(5	)	$	904	$	908	$	(11	)	$	897
30-60 days past billing date		185		(8		)	177		185		(9		)	176
61-90 days past billing date		60		(8		)	52		44		(9		)	35
More than 90 days past billing date		67		(22		)	45		80		(25		)	55

	6	$	1,221	$	(43	)	$	1,178	$	1,217	$	(54	)	$	1,163

(1)

Net amounts represent customer accounts receivable for which an allowance had not been made as at the dates of the Consolidated statements of financial position.

We maintain allowances for lifetime expected credit losses related to doubtful accounts. Current economic conditions (including forward-looking macroeconomic data), historical information (including credit agency reports, if available), reasons for the accounts being past due and line of business from which the customer accounts receivable arose are all considered when determining whether to make allowances for past-due accounts. The same factors are considered when determining whether to write off amounts charged to the allowance for doubtful accounts against the customer accounts receivable; amounts that had been written off from the allowance for doubtful accounts but were still subject to enforcement activity as at December 31, 2017, were $298 million (2016 — $231 million). The doubtful accounts expense is calculated on a specific-identification basis for customer accounts receivable above a specific balance threshold and on a statistically derived allowance basis for the remainder. No customer accounts receivable are written off directly to the doubtful accounts expense.

The following table presents a summary of the activity related to our allowance for doubtful accounts.

Years ended December 31 (millions)	2017			2016
Balance, beginning of period	$	54		$	52
Additions (doubtful accounts expense)	54			58
Accounts written off, net of recoveries	(66		)	(65		)
Other	1			9

Balance, end of period	$	43		$	54

Derivative assets (and derivative liabilities)

Counterparties to our share-based compensation cash-settled equity forward agreements and foreign exchange derivatives are major financial institutions that have been accorded investment grade ratings by a primary credit rating agency. The total dollar amount of credit exposure under contracts with any one financial institution is limited and counterparties’ credit ratings are monitored. We do not give or receive collateral on swap agreements and hedging items due to our credit rating and those of our counterparties. While we are exposed to the risk of potential credit losses due to the possible non-performance of our counterparties, we consider this risk remote. Our derivative liabilities do not have credit risk-related contingent features.

(c)Liquidity risk

As a component of our capital structure financial policies, discussed further in Note 3, we manage liquidity risk by:

maintaining a daily cash pooling process that enables us to manage our available liquidity and our liquidity requirements according to our actual needs;

maintaining an agreement to sell trade receivables to an arm’s-length securitization trust (Note 22);

maintaining bilateral bank facilities (Note 22) and syndicated credit facilities (Note 26(d),(f));

maintaining a commercial paper program (Note 26(c));

maintaining an in-effect shelf prospectus;

continuously monitoring forecast and actual cash flows; and

managing maturity profiles of financial assets and financial liabilities.

Our debt maturities in future years are as disclosed in Note 26(g). As at December 31, 2017, we could offer $1.2 billion of debt or equity securities pursuant to a shelf prospectus that is in effect until April 2018 (2016 — $2.2 billion). We believe that our investment grade credit ratings contribute to reasonable access to capital markets.

We closely match the contractual maturities of our derivative financial liabilities with those of the risk exposures they are being used to manage.

The expected maturities of our undiscounted financial liabilities do not differ significantly from the contractual maturities, other than as noted below. The contractual maturities of our undiscounted financial liabilities, including interest thereon (where applicable), are set out in the following tables:

	Non-derivative									Derivative
	Non-interest					Construction		Composite long-term debt
As at December 31, 2017	bearing financial		Short-term			credit facilities commitment 2		Long-term debt 1		Currency swap agreement amounts to be exchanged 3					Currency swap agreement amounts to be exchanged
(millions)	liabilities		borrowings 1			(Note 21)		(Note 26)		(Receive)			Pay		(Receive)			Pay		Total
2018	$	2,232	$	103		$	67	$	1,928	$	(1,188	)	$	1,206	$	(545	)	$	557	$	4,360
2019	40		—			—		1,531		(44		)	46		—			—		1,573
2020	19		—			—		1,480		(44		)	46		—			—		1,501
2021	76		—			—		1,480		(44		)	46		—			—		1,558
2022	18		—			—		1,913		(44		)	46		—			—		1,933
Thereafter	16		—			—		11,430		(1,591		)	1,679		—			—		11,534

Total	$	2,401	$		103	$	67	$	19,762	$	(2,955	)	$	3,069	$	(545	)	$	557	$	22,459

								Total (Note 26(g))					$	19,876

(1)

Cash outflows in respect of interest payments on our short-term borrowings, commercial paper and amounts drawn under our credit facilities (if any) have been calculated based upon the interest rates in effect as at December 31, 2017.

(2)

The drawdowns on the construction credit facilities are expected to occur as construction progresses through 2019.

(3)

The amounts included in undiscounted non-derivative long-term debt in respect of U.S. dollar-denominated long-term debt, and the corresponding amounts in the long-term debt currency swaps receive column, have been determined based upon the currency exchange rates in effect as at December 31, 2017. The hedged U.S. dollar-denominated long-term debt contractual amounts at maturity, in effect, are reflected in the long-term debt currency swaps pay column as gross cash flows are exchanged pursuant to the currency swap agreements.

	Non-derivative								Derivative
As at	Non-interest				Construction		Composite long-term debt
December 31,	bearing				credit facilities		Long-term		Currency swap agreement							Currency swap agreement
2016	financial		Short-term		commitment 2		debt 1		amounts to be exchanged 3							amounts to be exchanged
(millions)	liabilities		borrowings 1		(Note 21)		(Note 26)		(Receive)			Pay		Other		(Receive)			Pay		Total
2017	$	1,949	$	1	$	93	$	1,832	$	(634	)	$	634	$	3	$	(475	)	$	469	$	3,872
2018	227		102		—		750		(23		)	23		—		—			—		1,079
2019	16		—		—		1,498		(23		)	23		—		—			—		1,514
2020	9		—		—		1,447		(23		)	23		—		—			—		1,456
2021	9		—		—		1,711		(23		)	23		—		—			—		1,720
Thereafter	5		—		—		11,584		(930		)	921		—		—			—		11,580

Total	$	2,215	$	103	$	93	$	18,822	$	(1,656	)	$	1,647	$	3	$	(475	)	$	469	$	21,221

							Total					$	18,813

(1)

(2)

The drawdowns on the construction credit facilities are expected to occur as construction progresses through 2018.

(3)

The amounts included in undiscounted non-derivative long-term debt in respect of U.S. dollar-denominated long-term debt, and the corresponding amounts in the long-term debt currency swaps receive column, have been determined based upon the currency exchange rates in effect as at December 31, 2016. The hedged U.S. dollar-denominated long-term debt contractual amounts at maturity, in effect, are reflected in the long-term debt currency swaps pay column as gross cash flows are exchanged pursuant to the currency swap agreements.

(d)Currency risk

Our functional currency is the Canadian dollar, but certain routine revenues and operating costs are denominated in U.S. dollars and some inventory purchases and capital asset acquisitions are sourced internationally. The U.S. dollar is the only foreign currency to which we have a significant exposure.

Our foreign exchange risk management includes the use of foreign currency forward contracts and currency options to fix the exchange rates on a varying percentage, typically in the range of 50% to 75%, of our domestic short-term U.S. dollar-denominated transactions and commitments and all U.S. dollar-denominated commercial paper. Other than in respect of U.S. dollar-denominated commercial paper, we designate only the spot element of these instruments as the hedging item; the forward element is wholly immaterial; in respect of U.S. dollar-denominated commercial paper, we designate the forward rate.

As discussed further in Note 26(b) and (f), we are also exposed to currency risk in that the fair value or future cash flows of our U.S. Dollar Notes and our TELUS International (Cda) Inc. credit facility U.S. dollar borrowings could fluctuate because of changes in foreign exchange rates. Currency hedging relationships have been established for the related semi-annual interest payments and the principal payment at maturity in respect of the U.S. Dollar Notes; we designate only the spot element of these instruments as the hedging item; the forward element is wholly immaterial. As the functional currency of our TELUS International (Cda) Inc. subsidiary is the U.S. dollar, fluctuations in foreign exchange rates affecting its borrowings are reflected as a foreign currency translation adjustment within other comprehensive income.

(e)Interest rate risk

Changes in market interest rates will cause fluctuations in the fair values or future cash flows of temporary investments, construction credit facility advances made to the real estate joint venture, short-term obligations, long-term debt and interest rate swap derivatives.

When we have temporary investments, they have short maturities and fixed interest rates and as a result, their fair values will fluctuate with changes in market interest rates; absent monetization prior to maturity, the related future cash flows will not change due to changes in market interest rates.

If the balance of short-term investments includes dividend-paying equity instruments, we could be exposed to interest rate risk.

Due to the short-term nature of the applicable rates of interest charged, the fair value of the construction credit facilities advances made to the real estate joint venture is not materially affected by changes in market interest rates; the associated cash flows representing interest payments will be affected until such advances are repaid.

As short-term obligations arising from bilateral bank facilities, which typically have variable interest rates, are rarely outstanding for periods that exceed one calendar week, interest rate risk associated with this item is not material.

Short-term borrowings arising from the sales of trade receivables to an arm’s-length securitization trust are fixed-rate debt. Due to the short maturities of these borrowings, interest rate risk associated with this item is not material.

All of our currently outstanding long-term debt, other than commercial paper and amounts drawn on our credit facilities (Note 26(d), (f)), is fixed-rate debt. The fair value of fixed-rate debt fluctuates with changes in market interest rates; absent early redemption, the related future cash flows will not change. Due to the short maturities of commercial paper, its fair value is not materially affected by changes in market interest rates, but the associated cash flows representing interest payments may be affected if the commercial paper is rolled over.

Amounts drawn on our short-term and long-term credit facilities will be affected by changes in market interest rates in a manner similar to commercial paper.

(f)Other price risk

Long-term investments

We are exposed to equity price risk arising from investments classified as available-for-sale. Such investments are held for strategic rather than trading purposes.

Share-based compensation derivatives

We are exposed to other price risk arising from cash-settled share-based compensation (appreciating Common Share prices increase both the expense and the potential cash outflow). Certain cash-settled equity swap agreements have been entered into that fix the cost associated with our estimate of TELUS Corporation restricted stock units which are expected to vest and are not subject to performance conditions (Note 14(b)).

(g)Market risks

Net income and other comprehensive income for the years ended December 31, 2017 and 2016, could have varied if the Canadian dollar: U.S. dollar exchange rate and our Common Share price varied by reasonably possible amounts from their actual statement of financial position date amounts.

The sensitivity analysis of our exposure to currency risk at the reporting date has been determined based upon a hypothetical change taking place at the relevant statement of financial position date. The U.S. dollar-denominated balances and derivative financial instrument notional amounts as at the statement of financial position dates have been used in the calculations.

The sensitivity analysis of our exposure to other price risk arising from share-based compensation at the reporting date has been determined based upon a hypothetical change taking place at the relevant statement of financial position date. The relevant notional number of Common Shares at the statement of financial position date, which includes those in the cash-settled equity swap agreements, has been used in the calculations.

Income tax expense, which is reflected net in the sensitivity analysis, reflects the applicable statutory income tax rates for the reporting periods.

Years ended December 31	Net income						Other comprehensive income						Comprehensive income
(increase (decrease) in millions)	2017			2016			2017			2016			2017			2016
Reasonably possible changes in market risks 1
10% change in C$: US$ exchange rate
Canadian dollar appreciates	$	(1	)	$	(1	)	$	(15	)	$	(4	)	$	(16	)	$	(5	)
Canadian dollar depreciates	$	1		$	1		$	15		$	6		$	16		$	7
25% 2 change in Common Share price 3
Price increases	$	(8	)	$	(8	)	$	13		$	16		$	5		$	8
Price decreases	$	14		$	8		$	(13	)	$	(16	)	$	1		$	(8	)

(1)

These sensitivities are hypothetical and should be used with caution. Changes in net income and/or other comprehensive income generally cannot be extrapolated because the relationship of the change in assumption to the change in net income and/or other comprehensive income may not be linear. In this table, the effect of a variation in a particular assumption on the amount of net income and/or other comprehensive income is calculated without changing any other factors; in reality, changes in one factor may result in changes in another, which might magnify or counteract the sensitivities.

The sensitivity analysis assumes that we would realize the changes in exchange rates; in reality, the competitive marketplace in which we operate would have an effect on this assumption.

No consideration has been made for a difference in the notional number of Common Shares associated with share-based compensation awards made during the reporting period that may have arisen due to a difference in the Common Share price.

(2)

To facilitate ongoing comparison of sensitivities, a constant variance of approximate magnitude has been used. Reflecting a twelve-month data period and calculated on a monthly basis, the volatility of our Common Share price as at December 31, 2017, was 7.0% (2016 — 13.1%).

(3)

The hypothetical effects of changes in the price of our Common Shares are restricted to those which would arise from our share-based compensation awards that are accounted for as liability instruments and the associated cash-settled equity swap agreements.

(h)Fair values

General

The carrying values of cash and temporary investments, accounts receivable, short-term obligations, short-term borrowings, accounts payable and certain provisions (including restructuring provisions) approximate their fair values due to the immediate or short-term maturity of these financial instruments. The fair values are determined directly by reference to quoted market prices in active markets.

The carrying values of our investments accounted for using the cost method do not exceed their fair values. The fair values of our investments accounted for as available-for-sale are based on quoted market prices in active markets or other clear and objective evidence of fair value.

The fair value of our long-term debt is based on quoted market prices in active markets.

The fair values of the derivative financial instruments we use to manage our exposure to currency risk are estimated based on quoted market prices in active markets for the same or similar financial instruments or on the current rates offered to us for financial instruments of the same maturity, as well as discounted future cash flows determined using current rates for similar financial instruments of similar maturities subject to similar risks (such fair value estimates being largely based on the Canadian dollar: U.S. dollar forward exchange rate as at the statement of financial position dates).

The fair values of the derivative financial instruments we use to manage our exposure to increases in compensation costs arising from certain forms of share-based compensation are based on fair value estimates of the related cash-settled equity forward agreements provided by the counterparty to the transactions (such fair value estimates being largely based on our Common Share price as at the statement of financial position dates).

The financial instruments that we measure at fair value on a recurring basis in periods subsequent to initial recognition and the level within the fair value hierarchy at which they are measured are set out in the following table.

					Fair value measurements at reporting date using
					Quoted prices in active markets for identical items				Significant other observable inputs				Significant unobservable inputs
	Carrying value				(Level 1)				(Level 2)				(Level 3)
As at December 31 (millions)	2017		2016		2017		2016		2017		2016		2017		2016
Assets
Foreign exchange derivatives	$	4	$	10	$	—	$	—	$	4	$	10	$	—	$	—
Share-based compensation derivatives	20		7		—		—		20		7		—		—
Available-for-sale portfolio investments	41		62		—		—		41		62		—		—

	$	65	$	79	$	—	$	—	$	65	$	79	$	—	$	—

Liabilities
Foreign exchange derivatives	$	108	$	30	$	—	$	—	$	108	$	30	$	—	$	—
Share-based compensation derivatives	—		3		—		—		—		3		—		—
Starting interest rate derivatives	1		—		—		—		1		—		—		—

	$	109	$	33	$	—	$	—	$	109	$	33	$	—	$	—

Derivative

The derivative financial instruments that we measure at fair value on a recurring basis subsequent to initial recognition are set out in the following table.

	2017								2016
As at December 31 (millions)	Designation	Maximum maturity date	Notional amount		Fair value and carrying value		Price or rate		Maximum maturity date	Notional amount		Fair value and carrying value		Price or rate
Current Assets 1
Derivatives used to manage
Currency risk arising from U.S. dollar-denominated purchases	HFH 2	2018	$	110	$	2	US$1.00: C$1.24		2017	$	263	$	7	US$1.00: C$1.30
Currency risk arising from U.S. dollar-denominated purchases	HFT 3	—	$	—	—		—		2017	$	8	—		US$1.00: C$1.28
Currency risk arising from U.S. dollar revenues	HFT 3	2018	$	71	1		US$1.00: C$1.25		2017	$	4	—		US$1.00: C$1.34
Changes in share-based compensation costs (Note 14(b))	HFH 2	2018	$	73	14		$	40.91	2017	$	6	1		$	41.00
Currency risk arising from U.S. dollar-denominated long-term debt (Note 26(b)-(c))	HFH 2	2018	$	124	1		US$1.00: C$1.24		2017	$	191	3		US$1.00: C$1.32

					$	18						$	11

Other Long-Term Assets 1
Derivatives used to manage
Changes in share-based compensation costs (Note 14(b))	HFH 2	2019	$	63	$	6	$	45.46	2018	$	69	$	6	$	40.77

Current Liabilities 1
Derivatives used to manage
Currency risk arising from U.S. dollar-denominated purchases	HFH 2	2018	$	376	$	14	US$1.00: C$1.30		2017	$	69	2		US$1.00: C$1.38
Currency risk arising from U.S. dollar revenues	HFT 3	—	$	—	—		—		2017	$	124	5		US$1.00: C$1.34
Changes in share-based compensation costs (Note 14(b))	HFH 2	—	$	—	—		—		2017	$	65	3		$	45.76
Currency risk arising from U.S. dollar-denominated long-term debt (Note 26(b)-(c))	HFH 2	2018	$	1,036	18		US$1.00: C$1.28		2017	$	422	2		US$1.00: C$1.35
Interest rate risk associated with planned refinancing of debt maturing	HFH 2	2018	$	300	1		2.14%, GOC 10-year term		—	—		—		—

					$	33						$	12

Other Long-Term Liabilities 1
Derivatives used to manage
Currency risk arising from U.S. dollar-denominated long-term debt (Note 26(b)-(c))	HFH 2	2027	$	1,910	$	76	US$1.00: C$1.32		2027	$	1,036	21		US$1.00: C$1.32

(1)

Derivative financial assets and liabilities are not set off.

(2)

Designated as held for hedging (HFH) upon initial recognition (cash flow hedging item); hedge accounting is applied.

Unless otherwise noted, hedge ratio is 1:1 and is established by assessing the degree of matching between the notional amounts of hedging items and the notional amounts of the associated hedged items.

(3)

Designated as held for trading (HFT) upon initial recognition; hedge accounting is not applied.

Non-derivative

Our long-term debt, which is measured at amortized cost, and the fair value thereof, are set out in the following table.

	2017				2016
As at December 31 (millions)	Carrying value		Fair value		Carrying value		Fair value
Long-term debt (Note 26)	$	13,660	$	14,255	$	12,931	$	13,533

(i)Recognition of derivative gains and losses

The following table sets out the gains and losses, excluding income tax effects, arising from derivative instruments that are classified as cash flow hedging items and their location within the Consolidated statements of income and other comprehensive income.

Credit risk associated with such derivative instruments, as discussed further in (b), would be the primary source of hedge ineffectiveness. There was no ineffective portion of derivative instruments classified as cash flow hedging items for the periods presented.

		Amount of gain (loss) recognized in other comprehensive income						Gain (loss) reclassified from other comprehensive income to income (effective portion) (Note 11)
		(effective portion) (Note 11)							Amount
Years ended December 31 (millions)	Note	2017			2016			Location	2017			2016
Derivatives used to manage currency risk
Arising from U.S. dollar-denominated purchases		$	(23	)	$	(12	)	Goods and services purchased Financing costs	$	(5	)	$	(9	)
Arising from U.S. dollar-denominated long-term debt	26(b)-(c)	(109		)	(54		)		(146		)	(20		)
		(132		)	(66		)		(151		)	(29		)
Derivatives used to manage other price risk
Arising from changes in share-based compensation costs	14(b)	24			19			Employee benefits expense	17			8

		$	(108	)	$	(47	)		$	(134	)	$	(21	)

The following table sets out the gains and losses arising from derivative instruments that are classified as held for trading and that are not designated as being in a hedging relationship, and their location within the Consolidated statements of income and other comprehensive income.

		Gain (loss) recognized in income on derivatives
Years ended December 31 (millions)	Location	2017		2016
Derivatives used to manage currency risk	Financing costs	$	3	$	(2	)

Fact Table
Network	10501 - Disclosure - segment information (http://www.telus.com/role/DisclosureSegmentInformation)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory (label)

5segment information

General

Operating segments are components of an entity that engage in business activities from which they earn revenues and incur expenses (including revenues and expenses related to transactions with the other component(s)), the operations of which can be clearly distinguished and the operating results of which are regularly reviewed by a chief operating decision-maker to make resource allocation decisions and to assess performance.

As at December 31, 2017, we do not currently aggregate operating segments, and thus our reportable segments as at December 31, 2017, are also wireless and wireline. The wireless segment includes network revenues (mobile data and mobile voice) and equipment sales arising from mobile technologies. The wireline segment includes wireline data revenues (which include Internet protocol; television; hosting, managed information technology and cloud-based services; business process outsourcing; certain healthcare solutions; and home security), voice and other telecommunications services revenues (excluding wireless arising from mobile technologies), and equipment sales. Segmentation is based on similarities in technology (mobile versus fixed), the technical expertise required to deliver the services and products, customer characteristics, the distribution channels used and regulatory treatment. Intersegment sales are recorded at the exchange value, which is the amount agreed to by the parties.

The segment information regularly reported to our Chief Executive Officer (our chief operating decision-maker) through December 31, 2017, and the reconciliations thereof to our revenues and income before income taxes, are set out in the following table.

Years ended December 31	Wireless				Wireline				Eliminations						Consolidated
(millions)	2017		2016		2017		2016		2017			2016			2017		2016
Operating revenues
External revenues
Service	$	6,994	$	6,569	$	5,484	$	5,431	$	—		$	—		$	12,478	$	12,000
Equipment	505		509		219		216		—			—			724		725

Revenues arising from contracts with customers	7,499		7,078		5,703		5,647		—			—			13,202		12,725
Other operating income	36		37		66		37		—			—			102		74

	7,535		7,115		5,769		5,684		—			—			13,304		12,799
Intersegment revenues	43		58		206		194		(249		)	(252		)	—		—

	$	7,578	$	7,173	$	5,975	$	5,878	$	(249	)	$	(252	)	$	13,304	$	12,799

EBITDA 1 contribution	$	3,099	$	2,906	$	1,675	$	1,323	$	—		$	—		$	4,774	$	4,229

CAPEX, excluding spectrum licences 2	$	978	$	982	$	2,116	$	1,986	$	—		$	—		$	3,094	$	2,968

Operating revenues — external (above)	$	13,304	$	12,799
Goods and services purchased	5,935		5,631
Employee benefits expense	2,595		2,939

EBITDA (above)	4,774		4,229
Depreciation	1,617		1,564
Amortization	552		483

Operating income	2,605		2,182
Financing costs	573		520

Income before income taxes	$	2,032	$	1,662

(1)

Earnings before interest, income taxes, depreciation and amortization (EBITDA) does not have any standardized meaning prescribed by IFRS-IASB and is therefore unlikely to be comparable to similar measures presented by other issuers; we define EBITDA as operating revenues less goods and services purchased and employee benefits expense. We have issued guidance on, and report, EBITDA because it is a key measure that management uses to evaluate the performance of our business, and it is also utilized in measuring compliance with certain debt covenants.

(2)

Total capital expenditures (CAPEX); see Note 31(a) for a reconciliation of capital expenditures, excluding spectrum licences to cash payments for capital assets, excluding spectrum licences reported in the Consolidated statements of cash flows.

Geographical information

We attribute revenues from external customers to individual countries on the basis of the location where the goods and/or services are provided. We do not have significant revenues that we attribute to countries other than Canada (our country of domicile), nor do we have significant amounts of property, plant, equipment, intangible assets and/or goodwill located outside of Canada.

Fact Table
Network	10601 - Disclosure - revenue from contracts with customers (http://www.telus.com/role/DisclosureRevenueFromContractsWithCustomers)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory (label)

6 revenue from contracts with customers

Accounts receivable

As at December 31 (millions)	Note	2017			2016
Customer accounts receivable	4(b)	$	1,221		$	1,217
Accrued receivables — customer		143			131
Allowance for doubtful accounts	4(b)	(43		)	(54		)

		1,321			1,294
Accrued receivables — other		302			177

		$	1,623		$	1,471

Fact Table
Network	10701 - Disclosure - other operating income (http://www.telus.com/role/DisclosureOtherOperatingIncome)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfOtherOperatingIncomeExplanatory (label)

7other operating income

Years ended December 31 (millions)	Note	2017		2016
Government assistance, including deferral account amortization		$	32	$	36
Investment income, gain on disposal of assets and other		44		37
Change in business combination-related accrued receivable	18(b)	26		—
Interest income	21(c)	—		1

		$	102	$	74

We receive government assistance, as defined by IFRS-IASB, from a number of sources and include such amounts received in Other operating income.

CRTC subsidy

Local exchange carriers’ costs of providing the level of residential basic telephone services that the CRTC requires to be provided in high cost serving areas are greater than the amounts the CRTC allows the local exchange carriers to charge for the level of service. To ameliorate the situation, the CRTC directs the collection of contribution payments, in a central fund, from all registered Canadian telecommunications service providers (including voice, data and wireless service providers) that are then disbursed to incumbent local exchange carriers as subsidy payments to partially offset the costs of providing residential basic telephone services in non-forborne high cost serving areas. The subsidy payments are based upon a total subsidy requirement calculated on a per network access line/per band subsidy rate. For the year ended December 31, 2017, our subsidy receipts were $19 million (2016 — $20 million).

The CRTC currently determines, at a national level, the total annual contribution requirement necessary to pay the subsidies and then collects contribution payments from the Canadian telecommunications service providers, calculated as a percentage of their CRTC-defined telecommunications service revenue. The final contribution expense rate for 2017 was 0.60% and the interim rate for 2018 has been set at 0.54%. For the year ended December 31, 2017, our contributions to the central fund, which are accounted for as goods and services purchased, were $27 million (2016 — $23 million).

Government of Quebec

Salaries for qualifying employment positions in the province of Quebec, mainly in the information technology sector, are eligible for tax credits. In respect of such tax credits, for the year ended December 31, 2017, we recorded $7 million (2016 — $6 million).

Fact Table
Network	10801 - Disclosure - employee benefits expense (http://www.telus.com/role/DisclosureEmployeeBenefitsExpense)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfEmployeeBenefitsExplanatory (label)

8employee benefits expense

		2017			2016
Years ended December 31 (millions)	Note	Total			Traditional			Transformative compensation (Note 16(c))		Total
Employee benefits expense — gross
Wages and salaries		$	2,594		$	2,548		$	185	$	2,733
Share-based compensation 1	14	128			114			67		181
Pensions — defined benefit	15(b)	82			92			—		92
Pensions — defined contribution	15(f)	88			89			41		130
Other defined benefits	15(g)	—			1			—		1
Restructuring costs 1	16(b)	26			112			—		112
Other		156			153			12		165

		3,074			3,109			305		3,414

Capitalized internal labour costs
Property, plant and equipment		(321		)	(314		)	—		(314		)
Intangible assets subject to amortization		(158		)	(161		)	—		(161		)

		(479		)	(475		)	—		(475		)

		$	2,595		$	2,634		$	305	$	2,939

(1)

For the year ended December 31, 2017, $(7) (2016 — $4) of share-based compensation expense (recovery) was included in restructuring costs.

Fact Table
Network	10901 - Disclosure - financing costs (http://www.telus.com/role/DisclosureFinancingCosts)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfFinancingCostsTextBlock (label)

9financing costs

Years ended December 31 (millions)	Note	2017			2016
Interest expense
Interest on long-term debt — gross		$	561		$	538
Capitalized long-term debt interest 1	18(a)	—			(52		)

Interest on long-term debt — net		561			486
Interest on short-term borrowings and other		5			4
Interest accretion on provisions	25	13			12

		579			502
Employee defined benefit plans net interest	15(b), (g)	6			6
Foreign exchange		(5		)	15

		580			523
Interest income		(7		)	(3		)

		$	573		$	520

(1)

Long-term debt interest at a composite rate of 3.31% was capitalized to intangible assets with indefinite lives in the comparative period.

Fact Table
Network	11001 - Disclosure - income taxes (http://www.telus.com/role/DisclosureIncomeTaxes)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfIncomeTaxExplanatory (label)

10income taxes

(a)Expense composition and rate reconciliation

Years ended December 31 (millions)	2017			2016
Current income tax expense
For the current reporting period	$	205		$	506
Adjustments recognized in the current period for income taxes of prior periods	(82		)	(38		)

	123			468

Deferred income tax expense (recovery)
Arising from the origination and reversal of temporary differences	324			(64		)
Revaluation of deferred income tax liability to reflect future statutory income tax rates	28			(4		)
Adjustments recognized in the current period for income taxes of prior periods	78			26

	430			(42		)

	$	553		$	426

Our income tax expense and effective income tax rate differ from those calculated by applying the applicable statutory rates for the following reasons:

Years ended December 31 ($ in millions)	2017					2016
Income taxes calculated at applicable statutory rates	$	541		26.6	%	$	444		26.7	%
Revaluation of deferred income tax liability to reflect future income tax rates	28			1.3		(4		)	(0.2	)
Adjustments recognized in the current period for income taxes of prior periods	(4		)	(0.2	)	(12		)	(0.8	)
Other	(12		)	(0.5	)	(2		)	(0.1	)

Income tax expense per Consolidated statements of income and other comprehensive income	$	553		27.2	%	$	426		25.6	%

(b)Temporary differences

We must make significant estimates in respect of the composition of our deferred income tax liability. Our operations are complex and the related income tax interpretations, regulations, legislation and jurisprudence are continually changing. As a result, there are usually some income tax matters in question.

Temporary differences comprising the net deferred income tax liability and the amounts of deferred income taxes recognized in the Consolidated statements of income and other comprehensive income and the Consolidated statements of changes in owners’ equity are estimated as follows:

(millions)	Property, plant and equipment and intangible assets subject to amortization		Intangible assets with indefinite lives		Partnership income unallocated for income tax purposes			Net pension and share- based compensation amounts			Reserves not currently deductible			Losses available to be carried forward 1			Other			Net deferred income tax liability
As at January 1, 2016	$	785	$	1,380	$	195		$	(45	)	$	(160	)	$	(3	)	$	3		$	2,155
Deferred income tax expense recognized in Net income	85		77		(200		)	(7		)	12			(3		)	(6		)	(42		)
Other comprehensive income	—		—		—			4			—			—			(10		)	(6		)
Deferred income taxes charged directly to owners’ equity and other	—		—		—			—			—			—			(5		)	(5		)

As at December 31, 2016 2	870		1,457		(5		)	(48		)	(148		)	(6		)	(18		)	2,102
Deferred income tax expense recognized in Net income	348		84		5			(11		)	8			(1		)	(3		)	430
Other comprehensive income	—		—		—			(61		)	—			—			4			(57		)
Deferred income taxes charged directly to owners’ equity and other	3		20		—			—			—			—			(3		)	20

As at December 31, 2017 3	$	1,221	$	1,561	$	—		$	(120	)	$	(140	)	$	(7	)	$	(20	)	$	2,495

(1)

We expect to be able to utilize our non-capital losses prior to expiry.

(2)

Deferred tax liability of $2,107, net of deferred tax asset of $5 (included in Other long-term assets).

(3)

Deferred tax liability of $2,500, net of deferred tax asset of $5 (included in Other long-term assets).

IFRS-IASB requires the separate disclosure of temporary differences arising from the carrying value of investments in subsidiaries and partnerships exceeding their tax base, for which no deferred income tax liabilities have been recognized because the parent is able to control the timing of the reversal of the difference and it is probable that it will not reverse in the foreseeable future. In our specific instance, this is relevant to our investments in Canadian subsidiaries and Canadian partnerships. We are not required to recognize such deferred income tax liabilities, as we are in a position to control the timing and manner of the reversal of the temporary differences, which would not be expected to be exigible to income tax, and it is probable that such differences will not reverse in the foreseeable future. We are in a position to control the timing and manner of the reversal of temporary differences in respect of our non-Canadian subsidiaries, and it is probable that such differences will not reverse in the foreseeable future.

(c)Other

We have net capital losses, and such losses may only be applied against realized taxable capital gains. We expect to include a net capital loss carry-forward of $NIL (2016 — $4 million) in our Canadian income tax returns. During the year ended December 31, 2017, we recognized the benefit of $4 million (2016 — $NIL) of net capital losses.

We conduct research and development activities, which are eligible to earn Investment Tax Credits. During the year ended December 31, 2017, we recorded Investment Tax Credits of $12 million (2016 — $5 million). Of this amount, $7 million (2016 — $1 million) was recorded as a reduction of property, plant and equipment and/or intangible assets and the balance was recorded as a reduction of Goods and services purchased.

Fact Table
Network	11101 - Disclosure - other comprehensive income (http://www.telus.com/role/DisclosureOtherComprehensiveIncome)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatory (label)

11other comprehensive income

																												Item never
																												reclassified
	Items that may subsequently be reclassified to income																											to income
	Change in unrealized fair value of derivatives designated as cash flow hedges in current period (Note 4(i))																					Change in
	Derivatives used to manage currency risk								Derivatives used to manage other price risk											Cumulative		unrealized fair
(millions)	Gains (losses) arising			Prior period (gains) losses transferred to net income		Total			Gains (losses) arising		Prior period (gains) losses transferred to net income			Total			Total			foreign currency translation adjustment		value of available-for- sale financial assets			Accumulated other comp. income			Employee defined benefit plans re-measurements			Other comp. income
Accumulated balance as at January 1, 2016						$	6							$	(6	)	$	—		$	43	$	16		$	59
Other comprehensive income (loss)
Amount arising	$	(66	)	$	29	(37		)	$	19	$	(8	)	11			(26		)	5		—			(21		)	$	—		$	(21	)
Income taxes	$	(18	)	$	9	(9		)	$	5	$	(2	)	3			(6		)	—		—			(6		)	—			(6		)

Net						(28		)						8			(20		)	5		—			(15		)	$	—		$	(15	)

Accumulated balance as at December 31, 2016						(22		)						2			(20		)	48		16			44
Other comprehensive income (loss)
Amount arising	$	(132	)	$	151	19			$	24	$	(17	)	7			26			5		(13		)	18			$	(234	)	$	(216	)
Income taxes	$	(21	)	$	27	6			$	6	$	(5	)	1			7			—		(2		)	5			(62		)	(57		)

Net						13								6			19			5		(11		)	13			$	(172	)	$	(159	)

Accumulated balance as at December 31, 2017						$	(9	)						$	8		$	(1	)	$	53	$	5		$	57

Attributable to:
Common Shares																									$	51
Non-controlling interests																									6

																									$	57

As at December 31, 2017, our estimate of the net amount of existing gains (losses) arising from the unrealized fair value of derivatives designated as cash flow hedges that are reported in accumulated other comprehensive income and are expected to be reclassified to net income in the next twelve months, excluding income tax effects, is $5 million.

Fact Table
Network	11201 - Disclosure - per share amounts (http://www.telus.com/role/DisclosurePerShareAmounts)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfEarningsPerShareExplanatory (label)

12per share amounts

Basic net income per Common Share is calculated by dividing net income attributable to Common Shares by the total weighted average number of Common Shares outstanding during the period. Diluted net income per Common Share is calculated to give effect to share option awards and restricted stock units.

The following table presents the reconciliation of the denominators of the basic and diluted per share computations. Net income was equal to diluted net income for all periods presented.

Years ended December 31 (millions)	2017	2016
Basic total weighted average number of Common Shares outstanding	593	592
Effect of dilutive securities
Share option awards	—	1

Diluted total weighted average number of Common Shares outstanding	593	593

For the years ended December 31, 2017 and 2016, no outstanding TELUS Corporation share option awards were excluded in the computation of diluted net income per Common Share.

Fact Table
Network	11301 - Disclosure - dividends per share (http://www.telus.com/role/DisclosureDividendsPerShare)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDividendsExplanatory (label)

13dividends per share

(a)Dividends declared

Years ended December 31 (millions
except per share amounts)	2017						2016
	Declared			Paid to			Declared			Paid to
Common Share dividends	Effective	Per share		shareholders	Total		Effective	Per share		shareholders	Total
Quarter 1 dividend	Mar. 10, 2017	$	0.4800	Apr. 3, 2017	$	283	Mar. 11, 2016	$	0.44	Apr. 1, 2016	$	261
Quarter 2 dividend	Jun. 9, 2017	0.4925		Jul. 4, 2017	293		Jun. 10, 2016	0.46		Jul. 4, 2016	274
Quarter 3 dividend	Sep. 8, 2017	0.4925		Oct. 2, 2017	292		Sep. 9, 2016	0.46		Oct. 3, 2016	272
Quarter 4 dividend	Dec. 11, 2017	0.5050		Jan. 2, 2018	299		Dec. 9, 2016	0.48		Jan. 3, 2017	284

		$	1.9700		$	1,167		$	1.84		$	1,091

On February 7, 2018, the Board of Directors declared a quarterly dividend of $0.5050 per share on our issued and outstanding Common Shares payable on April 2, 2018, to holders of record at the close of business on March 9, 2018. The final amount of the dividend payment depends upon the number of Common Shares issued and outstanding at the close of business on March 9, 2018.

(b)Dividend Reinvestment and Share Purchase Plan

We have a Dividend Reinvestment and Share Purchase Plan under which eligible holders of Common Shares may acquire additional Common Shares by reinvesting dividends and by making additional optional cash payments to the trustee. Under this Plan, we have the option of offering Common Shares from Treasury or having the trustee acquire Common Shares in the stock market. We may, at our discretion, offer Common Shares at a discount of up to 5% from the market price under the Plan.

In respect of Common Share dividends declared during the year ended December 31, 2017, $58 million (2016 — $59 million) was to be reinvested in Common Shares acquired by the trustee from Treasury (2016 — in the stock market), with no discount applicable.

Under the share purchase feature of the Plan, eligible shareholders can make optional cash payments to purchase our Common Shares at the market price without brokerage commissions or service charges; such purchases are subject to a minimum investment of $100 per transaction and a maximum investment of $20,000 per calendar year.

Fact Table
Network	11401 - Disclosure - share-based compensation (http://www.telus.com/role/DisclosureShareBasedCompensation)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory (label)

14share-based compensation

(a)Details of share-based compensation expense

Reflected in the Consolidated statements of income and other comprehensive income as Employee benefits expense and in the Consolidated statements of cash flows are the following share-based compensation amounts:

	2017								2016
Years ended December 31 (millions)	Note	Employee benefits expense		Associated operating cash outflows			Statement of cash flows adjustment		Employee benefits expense		Associated operating cash outflows			Statement of cash flows adjustment
Restricted stock units 1	(b)	$	83	$	(67	)	$	16	$	81	$	(83	)	$	(2	)
Transformative compensation 2	16(c)	—		—			—		64		(64		)	—
Employee share purchase plan 3	(c)	37		(37		)	—		40		(40		)	—
Share option awards	(d)	1		—			1		—		—			—

		$	121	$	(104	)	$	17	$	185	$	(187	)	$	(2	)

(1)

The expense arising from restricted stock units was net of cash-settled equity swap agreement effects (see Note 4(i)). Within employee benefits expense (see Note 8), restricted stock unit expense of $90 (2016 — $77) is presented as share-based compensation and the balance is included in restructuring costs.

(2)

As set out in Note 16(c), in 2016 we made immediately vesting, transformative compensation lump-sum payments to substantially all of our existing unionized and non-unionized Canadian-sited workforces. For the unionized and non-unionized workforces, approximately 40% of the after-tax value of such qualifying lump-sum payments was paid in our Common Shares (see Note 28(b)) by way of an employee benefit plan trust.

As a result of our being considered for accounting purposes to control an employee benefit plan trust that was used to effect these Common Share payments, such transactions have been recognized as treasury stock transactions and we have applied the cost method of accounting. As at December 31, 2016, the employee benefit plan trust held no Common Shares.

(3)

Employees who received an immediately vesting, transformative compensation lump-sum payment in 2016 contributed a percentage of their payment to the employee share purchase plan consistent with their regular compensation payment, as further described in (c). Our associated employer expense and contributions were $NIL (2016 — $3).

For the year ended December 31, 2017, the associated operating cash outflows in respect of restricted stock units were net of cash inflows arising from the cash-settled equity swap agreements of $14 million (2016 — $9 million). For the year ended December 31, 2017, the income tax benefit arising from share-based compensation was $32 million (2016 — $49 million).

(b)Restricted stock units

General

We use restricted stock units as a form of retention and incentive compensation. Each restricted stock unit is nominally equal in value to one equity share and is nominally entitled to the dividends that would arise thereon if it were an issued and outstanding equity share. The notional dividends are recorded as additional issuances of restricted stock units during the life of the restricted stock unit. Due to the notional dividend mechanism, the grant-date fair value of restricted stock units equals the fair market value of the corresponding equity shares at the grant date. The restricted stock units generally become payable when vesting is complete and typically vest over a period of 33 months (the requisite service period). The vesting method of restricted stock units, which is determined on or before the date of grant, may be either cliff or graded; the majority of restricted stock units outstanding are cliff-vesting. The associated liability is normally cash-settled.

TELUS Corporation restricted stock units

We also award restricted stock units that largely have the same features as our general restricted stock units, but have a variable payout (0% — 200%) that depends upon the achievement of our total customer connections performance condition (with a weighting of 25%) and the total shareholder return on our Common Shares relative to an international peer group of telecommunications companies (with a weighting of 75%). The grant-date fair value of the notional subset of our restricted stock units affected by the total customer connections performance condition equals the fair market value of the corresponding Common Shares at the grant date, and thus the notional subset has been included in the presentation of our restricted stock units with only service conditions. The recurring estimate, which reflects a variable payout, of the fair value of the notional subset of our restricted stock units affected by the relative total shareholder return performance condition is determined using a Monte Carlo simulation.

The following table presents a summary of outstanding TELUS Corporation non-vested restricted stock units.

Number of non-vested restricted stock units as at December 31	2017	2016
Restricted stock units without market performance conditions
Restricted stock units with only service conditions	3,327,464	3,260,745
Notional subset affected by total customer connections performance condition	154,452	130,234

	3,481,916	3,390,979
Restricted stock units with market performance conditions
Notional subset affected by relative total shareholder return performance condition	463,357	390,703

	3,945,273	3,781,682

The following table presents a summary of the activity related to TELUS Corporation restricted stock units without market performance conditions.

	2017						2016
	Number of restricted stock units 1				Weighted average grant-		Number of restricted stock units 1				Weighted average grant-
Years ended December 31	Non-vested		Vested		date fair value		Non-vested		Vested		date fair value
Outstanding, beginning of period
Non-vested	3,390,979		—		$	41.71	3,564,412		—		$	41.42
Vested	—		29,108		$	38.09	—		29,008		$	40.00
Issued
Initial award	1,825,688		—		$	43.56	1,942,446		—		$	39.74
In lieu of dividends	206,715		455		$	43.98	209,027		381		$	41.63
Vested	(1,766,680	)	1,766,680		$	43.73	(2,024,130	)	2,024,130		$	39.31
Settled in cash	—		(1,698,008	)	$	43.63	—		(2,004,126	)	$	39.29
Forfeited and cancelled	(174,786	)	(65,387	)	$	42.88	(300,776	)	(20,285	)	$	35.70

Outstanding, end of period
Non-vested	3,481,916		—		$	41.87	3,390,979		—		$	41.71
Vested	—		32,848		$	41.00	—		29,108		$	38.09

(1)

Excluding the notional subset of restricted stock units affected by the relative total shareholder return performance condition.

With respect to certain issuances of TELUS Corporation restricted stock units, we have entered into cash-settled equity forward agreements that fix our cost; that information, as well as a schedule of non-vested TELUS Corporation restricted stock units outstanding as at December 31, 2017, is set out in the following table.

Vesting in years ending December 31	Number of fixed-cost restricted stock units	Our fixed cost per restricted stock unit		Number of variable-cost restricted stock units	Total number of non-vested restricted stock units 1
2018	1,792,286	$	40.91	28,951	1,821,237
2019	1,385,734	$	45.46	274,945	1,660,679

	3,178,020			303,896	3,481,916

(1)

Excluding the notional subset of restricted stock units affected by the relative total shareholder return performance condition.

TELUS International (Cda) Inc. restricted stock units

We also award restricted stock units that largely have the same features as the TELUS Corporation restricted stock units, but have a variable payout (0% — 150%) that depends upon the achievement of TELUS International (Cda) Inc. financial performance and non-market quality-of-service performance conditions.

The following table presents a summary of the activity related to TELUS International (Cda) Inc. restricted stock units.

	2017									2016
	US$ denominated						Canadian $ denominated			US$ denominated			Canadian $ denominated
Years ended	Number of restricted stock units				Grant-date		Number of vested restricted	Grant-date		Number of non-vested restricted	Grant-date		Number of restricted stock units			Grant-date
December 31	Non-vested		Vested		fair value		stock units	fair value		stock units	fair value		Non-vested		Vested	fair value
Outstanding, beginning of period
Non-vested	163,785		—		US$	21.90	—	$	—	—	US$	—	—		—	$	—
Vested	—		—		US$	—	32,299	$	21.36	—	US$	—	—		—	$	—
Issued — initial award	213,768				US$	26.40	—	$	—	163,785	US$	21.90	32,299		—	$	21.36
Vested	(208	)	208		US$	24.10	—	$	—	—	US$	—	(32,299	)	32,299	$	21.36
Exercised	—		(208	)	US$	24.10	—	$	—	—	US$	—	—		—	$	—
Forfeited and cancelled	(2,559	)	—		US$	24.10	—	$	—	—	US$	—	—		—	$	—

Outstanding, end of period
Non-vested	374,786		—		US$	24.45	—	$	—	163,785	US$	21.90	—		—	$	—
Vested	—		—		US$	—	32,299	$	21.36	—	US$	—	—		32,299	$	21.36

(c)Employee share purchase plan

We have an employee share purchase plan under which eligible employees up to a certain job classification can purchase our Common Shares through regular payroll deductions by contributing between 1% and 20% of their pay; for more highly compensated job classifications, employees may contribute between 1% and 55% of their pay. For every dollar contributed by an employee, up to a maximum of 6% of eligible employee pay, we are required to make a contribution at a percentage between 20% and 40%. For the years ended December 31, 2017 and 2016, we contributed 40% for employees up to a certain job classification; for more highly compensated job classifications, we contributed 35%. We record our contributions as a component of Employee benefits expense and our contribution vests on the earlier of a plan participant’s last day in our employ or the last business day of the calendar year of our contribution, unless the plan participant’s employment is terminated with cause, in which case the plan participant will forfeit any in-year contribution from us.

In respect of Common Shares held within the employee share purchase plan, Common Share dividends declared during the year ended December 31, 2017, of $31 million (2016 — $27 million) were to be reinvested in Common Shares acquired by the trustee from Treasury (2016 — in the stock market), with no discount applicable.

(d)Share option awards

General

We use share option awards as a form of retention and incentive compensation. We apply the fair value method of accounting for share-based compensation awards granted to officers and other employees. Share option awards typically have a three-year vesting period (the requisite service period), but may vest over periods of up to five years. The vesting method of share option awards, which is determined on or before the date of grant, may be either cliff or graded; all share option awards granted subsequent to 2004 have been cliff-vesting.

The weighted average fair value of share option awards granted is calculated by using the Black-Scholes model (a closed-form option pricing model). The risk-free interest rate used in determining the fair value of the share option awards is based on a Government of Canada yield curve that is current at the time of grant. The expected lives of the share option awards are based on our historical share option award exercise data. Similarly, expected volatility considers the historical volatility in the price of our Common Shares for TELUS Corporation share options and average historical volatility in the prices of a peer group’s shares in respect of TELUS International (Cda) Inc. share options. The dividend yield is the annualized dividend current at the time of grant divided by the share option award exercise price. Dividends are not paid on unexercised share option awards and are not subject to vesting.

TELUS Corporation share options

Employees may receive options to purchase Common Shares at a price equal to the fair market value at the time of grant. Share option awards granted under the plan may be exercised over specific periods not to exceed seven years from the time of grant. No share options were awarded in fiscal 2017 or 2016.

These share option awards have a net-equity settlement feature. The optionee does not have the choice of exercising the net-equity settlement feature; it is at our option whether the exercise of a share option award is settled as a share option or settled using the net-equity settlement feature.

The following table presents a summary of the activity related to the TELUS Corporation share option plan.

	2017				2016
Years ended December 31	Number of share options		Weighted average share option price		Number of share options		Weighted average share option price
Outstanding, beginning of period	1,417,693		$	24.49	2,375,596		$	22.96
Exercised 1	(652,926	)	$	21.90	(925,682	)	$	20.75
Forfeited	(3,908	)	$	27.56	(13,112	)	$	24.49
Expired	(20,388	)	$	16.31	(19,109	)	$	15.29

Outstanding, end of period 2	740,471		$	26.99	1,417,693		$	24.49

(1)

The total intrinsic value of share option awards exercised for the year ended December 31, 2017, was $15 million (2016 — $19 million), reflecting a weighted average price at the dates of exercise of $44.63 per share (2016 — $41.06 per share). The difference between the number of share options exercised and the number of Common Shares issued (as reflected in the Consolidated statements of changes in owners’ equity) is the effect of our choosing to settle share option award exercises using the net-equity settlement feature.

(2)

All outstanding TELUS Corporation share options are vested, their range of prices is $23.08 — $31.69 per share and their weighted average remaining contractual life is 0.9 years.

TELUS International (Cda) Inc. share options

Employees may receive equity share options (equity-settled) to purchase TELUS International (Cda) Inc. common shares at a price equal to, or a multiple of, the fair market value at the time of grant and/or phantom share options (cash-settled) that provide them with exposure to TELUS International (Cda) Inc. common share price appreciation. Share option awards granted under the plan may be exercised over specific periods not to exceed ten years from the time of grant. All equity share option awards and most phantom share option awards have a variable payout (0% — 100%) that depends upon the achievement of TELUS International (Cda) Inc. financial performance and non-market quality-of-service performance conditions.

The following table presents a summary of the activity related to the TELUS International (Cda) Inc. share option plan.

	2017						2016
	US$ denominated			Canadian $ denominated			US$ denominated			Canadian $ denominated
Years ended December 31	Number of share options	Weighted average share option price 1		Number of share options	Share option price 2		Number of share options	Weighted average share option price 1		Number of share options	Share option price 2
Outstanding, beginning of period	573,354	US$	30.86	53,832	$	21.36	—	US$	—	—	$	—
Granted	175,272	US$	27.70	—	$	—	573,354	US$	30.86	53,832	$	21.36

Outstanding, end of period	748,626	US$	30.12	53,832	$	21.36	573,354	US$	30.86	53,832	$	21.36

(1)

The range of share option prices is US$21.90 — US$40.25 per TELUS International (Cda) Inc. equity share and the weighted average remaining contractual life is 9.2 years (2016 — 10.0 years).

(2)

The weighted average remaining contractual life is 8.5 years (2016 — 9.5 years).

Fact Table
Network	11501 - Disclosure - employee future benefits (http://www.telus.com/role/DisclosureEmployeeFutureBenefits)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:EmployeeFutureBenefitsTextBlock (label)

15employee future benefits

We have a number of defined benefit and defined contribution plans that provide pension and other retirement and post-employment benefits to most of our employees. As at December 31, 2017 and 2016, all registered defined benefit pension plans were closed to substantially all new participants and substantially all benefits had vested. The benefit plans in which our employees are participants reflect developments in our corporate history.

TELUS Corporation Pension Plan

Management and professional employees in Alberta who joined us prior to January 1, 2001, and certain unionized employees who joined us prior to June 9, 2011, are covered by this contributory defined benefit pension plan, which comprises slightly more than one-half of our total defined benefit obligation accrued. The plan contains a supplemental benefit account that may provide indexation of up to 70% of the annual increase in a specified cost-of-living index. Pensionable remuneration is determined by the average of the best five years of remuneration in the last ten years preceding retirement.

Pension Plan for Management and Professional Employees of TELUS Corporation

This defined benefit pension plan, which with certain limited exceptions ceased accepting new participants on January 1, 2006, and which comprises approximately one-quarter of our total defined benefit obligation accrued, provides a non-contributory base level of pension benefits. Additionally, on a contributory basis, employees annually can choose increased and/or enhanced levels of pension benefits above the base level. At an enhanced level of pension benefits, the plan has indexation of 100% of the annual increase in a specified cost-of-living index, to an annual maximum of 2%. Pensionable remuneration is determined by the annualized average of the best 60 consecutive months of remuneration.

TELUS Québec Defined Benefit Pension Plan

This contributory defined benefit pension plan, which ceased accepting new participants on April 14, 2009, covers any employee not governed by a collective agreement in Quebec who joined us prior to April 1, 2006, any non-supervisory employee governed by a collective agreement who joined us prior to September 6, 2006, and certain other unionized employees. The plan comprises approximately one-tenth of our total defined benefit obligation accrued. The plan has no indexation and pensionable remuneration is determined by the average of the best four years of remuneration.

TELUS Edmonton Pension Plan

This contributory defined benefit pension plan ceased accepting new participants on January 1, 1998. Indexation is 60% of the annual increase in a specified cost-of-living index and pensionable remuneration is determined by the annualized average of the best 60 consecutive months of remuneration. The plan comprises less than one-tenth of our total defined benefit obligation accrued.

Other defined benefit pension plans

In addition to the foregoing plans, we have non-registered, non-contributory supplementary defined benefit pension plans, which have the effect of maintaining the earned pension benefit once the allowable maximums in the registered plans are attained. As is common with non-registered plans of this nature, these plans are typically funded only as benefits are paid. These plans comprise less than 5% of our total defined benefit obligation accrued.

We have three contributory non-indexed defined benefit pension plans arising from a pre-merger acquisition, which comprise less than 1% of our total defined benefit obligation accrued; these plans ceased accepting new participants in September 1989.

Telecommunication Workers Pension Plan

Certain employees in British Columbia are covered by a negotiated-cost, target-benefit union pension plan. Our contributions are determined in accordance with provisions of negotiated labour contracts, the current one of which expires December 31, 2021, and are generally based on employee gross earnings. We are not required to guarantee the benefits or assure the solvency of the plan, and we are not liable to the plan for other participating employers’ obligations. For the years ended December 31, 2017 and 2016, our contributions comprised a significant proportion of the employer contributions to the union pension plan; similarly, a significant proportion of the plan participants were our active and retired employees.

British Columbia Public Service Pension Plan

Certain employees in British Columbia are covered by a public service pension plan. Contributions are determined in accordance with provisions of labour contracts negotiated by the Province of British Columbia and are generally based on employee gross earnings.

Defined contribution pension plans

We offer three defined contribution pension plans, which are contributory, and these are the pension plans that we sponsor that are available to our non-unionized and certain of our unionized employees. Employees, annually, can generally choose to contribute to the plans at a rate of between 3% and 6% of their pensionable earnings. Generally, we match 100% of the contributions of employees up to 5% of their pensionable earnings and 80% of employee contributions greater than that. Membership in a defined contribution pension plan is generally voluntary until an employee’s third-year service anniversary. In the event that annual contributions exceed allowable maximums, excess amounts are in certain cases contributed to a non-registered supplementary defined contribution pension plan.

Other defined benefit plans

Other defined benefit plans, which are all non-contributory and, as at December 31, 2017 and 2016, non-funded, are comprised of a healthcare plan for retired employees and a life insurance plan, both of which ceased accepting new participants on January 1, 1997.

(a)Defined benefit pension plans — funded status overview

Information concerning our defined benefit pension plans, in aggregate, is as follows:

As at December 31 (millions)	2017			2016
PRESENT VALUE OF THE DEFINED BENEFIT OBLIGATIONS
Balance at beginning of year	$	8,837		$	8,620
Current service cost	100			109
Past service cost	(2		)	2
Interest expense	331			340
Actuarial loss (gain) arising from:
Demographic assumptions	77			25
Financial assumptions	526			184
Benefits paid	(450		)	(443		)

Balance at end of year	9,419			8,837

PLAN ASSETS
Fair value at beginning of year	8,873			8,641
Return on plan assets
Notional interest income on plan assets at discount rate	330			339
Actual return on plan assets greater than discount rate	360			247
Contributions
Employer contributions (d)	66			70
Employees’ contributions	22			25
Benefits paid	(450		)	(443		)
Administrative fees	(6		)	(6		)

Fair value at end of year	9,195			8,873

Effect of asset ceiling limit
Beginning of year	(115		)	(74		)
Change	5			(41		)

End of year	(110		)	(115		)

Fair value of plan assets at end of year, net of asset ceiling limit	9,085			8,758

FUNDED STATUS — PLAN SURPLUS (DEFICIT)	$	(334	)	$	(79	)

The plan surplus (deficit) is reflected in the Consolidated statements of financial position as follows:

As at December 31 (millions)	Note	2017			2016
Funded status — plan surplus (deficit)
Pension benefit plans		$	(334	)	$	(79	)
Other benefit plans		(47		)	(47		)

		$	(381	)	$	(126	)

Presented in the Consolidated statements of financial position as:
Other long-term assets	20	$	156		$	358
Other long-term liabilities	27	(537		)	(484		)

		$	(381	)	$	(126	)

The measurement date used to determine the plan assets and defined benefit obligations accrued was December 31.

(b)Defined benefit pension plans — details

Expense

Our defined benefit pension plan expense (recovery) was as follows:

Years ended December 31 (millions)	2017												2016
Recognized in	Employee benefits expense (Note 8)			Financing costs (Note 9)			Other comp. income (Note 11)			Total			Employee benefits expense (Note 8)		Financing costs (Note 9)			Other comp. income (Note 11)			Total
Current service cost	$	78		$	—		$	—		$	78		$	84	$	—		$	—		$	84

Past service costs	(2		)	—			—			(2		)	2		—			—			2

Net interest; return on plan assets
Interest expense arising from defined benefit obligations accrued	—			331			—			331			—		340			—			340
Return, including interest income, on plan assets 1	—			(330		)	(360		)	(690		)	—		(339		)	(247		)	(586		)
Interest effect on asset ceiling limit	—			4			—			4			—		3			—			3

	—			5			(360		)	(355		)	—		4			(247		)	(243		)

Administrative fees	6			—			—			6			6		—			—			6

Re-measurements arising from:
Demographic assumptions	—			—			77			77			—		—			25			25
Financial assumptions	—			—			526			526			—		—			184			184

	—			—			603			603			—		—			209			209

Changes in the effect of limiting net defined benefit assets to the asset ceiling	—			—			(9		)	(9		)	—		—			38			38

	$	82		$	5		$	234		$	321		$	92	$	4		$	—		$	96

(1)

The interest income on the plan assets portion of the employee defined benefit plans net interest amount included in Financing costs reflects a rate of return on plan assets equal to the discount rate used in determining the defined benefit obligations accrued.

Disaggregation of defined benefit pension plan funding status

Defined benefit obligations accrued are the actuarial present values of benefits attributed to employee services rendered to a particular date. Our disaggregation of defined benefit pension plan surpluses and deficits at year-end is as follows:

	2017										2016
As at December 31 (millions)	Defined benefit obligations accrued		Plan assets		Difference			PBSR solvency position 1			Defined benefit obligations accrued		Plan assets		Difference			PBSR solvency position 1
Pension plans that have plan assets in excess of defined benefit obligations accrued	$	8,116	$	8,272	$	156		$	335		$	7,610	$	7,968	$	358		$	320
Pension plans that have defined benefit obligations accrued in excess of plan assets
Funded	1,099		813		(286		)	(80		)	1,034		790		(244		)	(67		)
Unfunded	204		—		(204		)	N/A		2	193		—		(193		)	N/A		2

	1,303		813		(490		)	(80		)	1,227		790		(437		)	(67		)

	$	9,419	$	9,085	$	(334	)	$	255		$	8,837	$	8,758	$	(79	)	$	253

Defined benefit obligations accrued owed to:
Active members	$	2,285									$	2,140
Deferred members	560										557
Pensioners	6,574										6,140

	$	9,419									$	8,837

(1)

The Office of the Superintendent of Financial Institutions, by way of the Pension Benefits Standards Regulations, 1985 (PBSR) (see (d)), requires that a solvency valuation be performed on a periodic basis. The actual PBSR solvency positions are determined in conjunction with mid-year annual funding reports prepared by actuaries (see (d)); as a result, the PBSR solvency positions in this table as at December 31, 2017 and 2016, are interim estimates and updated estimates, respectively. The interim estimate as at December 31, 2016, was a net surplus of $294.

Interim estimated solvency ratios as at December 31, 2017, ranged from 90% to 105% (2016 — updated estimate is 92% to 105%; interim estimate was 93% to 107%) and the estimated three-year average solvency ratios, adjusted as required by the PBSR, ranged from 93% to 104% (2016 — updated estimate is 92% to 103%; interim estimate was 93% to 104%).

The solvency valuation effectively uses the fair value (excluding any asset ceiling limit effects) of the funded defined benefit pension plan assets (adjusted for theoretical wind-up expenses) to measure the solvency assets. Although the defined benefit obligations accrued and the solvency liabilities are calculated similarly, the assumptions used for each differ, primarily in respect of retirement ages and discount rates, and the solvency liabilities, due to the required assumption that each plan is terminated on the valuation date, do not reflect assumptions about future compensation levels. Relative to the experience-based estimates of retirement ages used for purposes of determining the defined benefit obligations accrued, the minimum no-consent retirement age used for solvency valuation purposes may result in either a greater or lesser pension liability, depending upon the provisions of each plan. The solvency positions in this table reflect composite weighted average discount rates of 3.00% (2016 — 3.10%). A hypothetical decrease of 25 basis points in the composite weighted average discount rate would result in a $316 decrease in the PBSR solvency position as at December 31, 2017 (2016 — $303); these sensitivities are hypothetical, should be used with caution, are calculated without changing any other assumption and generally cannot be extrapolated because changes in amounts may not be linear.

(2)

PBSR solvency position calculations are not required for the three pension plans arising from a pre-merger acquisition or for the non-registered, unfunded pension plans.

Fair value measurements

Information about the fair value measurements of our defined benefit pension plan assets, in aggregate, is as follows:

							Fair value measurements at reporting date using
	Total						Quoted prices in active markets for identical items				Other
As at December 31 (millions)	2017			2016			2017		2016		2017		2016
Asset class
Equity securities
Canadian	$	1,385		$	1,172		$	1,129	$	1,135	$	256	$	37
Foreign	1,867			1,876			853		1,189		1,014		687
Debt securities
Issued by national, provincial or local governments	1,512			1,463			1,389		1,362		123		101
Corporate debt securities	1,208			1,317			—		—		1,208		1,317
Asset-backed securities	31			31			—		—		31		31
Commercial mortgages	1,659			1,107			—		—		1,659		1,107
Cash, cash equivalents and other	486			1,151			38		29		448		1,122
Real estate	1,047			756			—		—		1,047		756

	9,195			8,873			$	3,409	$	3,715	$	5,786	$	5,158

Effect of asset ceiling limit	(110		)	(115		)

	$	9,085		$	8,758

As at December 31, 2017, we administered pension benefit trusts that held no TELUS Corporation Common Shares and held debt of TELUS Corporation with a fair value of approximately $3 million (2016 — $3 million) (see (c) — Allowable and prohibited investment types). As at December 31, 2017 and 2016, pension benefit trusts that we administered did not lease real estate to us.

Future benefit payments

Estimated future benefit payments from our defined benefit pension plans, calculated as at December 31, 2017, are as follows:

Years ending December 31 (millions)
2018	$	446
2019	454
2020	458
2021	465
2022	471
2023-2027	2,440

(c)Plan investment strategies and policies

Our primary goal for the defined benefit pension plans is to ensure the security of the retirement income and other benefits of the plan members and their beneficiaries. A secondary goal is to maximize the long-term rate of return on the defined benefit plans’ assets within a level of risk acceptable to us.

Risk management

We consider absolute risk (the risk of contribution increases, inadequate plan surplus and unfunded obligations) to be more important than relative return risk. Accordingly, the defined benefit plans’ designs, the nature and maturity of defined benefit obligations and the characteristics of the plans’ memberships significantly influence investment strategies and policies. We manage risk by specifying allowable and prohibited investment types, setting diversification strategies and determining target asset allocations.

Allowable and prohibited investment types

Allowable and prohibited investment types, along with associated guidelines and limits, are set out in each plan’s required Statement of Investment Policies and Procedures (SIPP), which is reviewed and approved annually by the designated governing body. The SIPP guidelines and limits are further governed by the permitted investments and lending limits set out in the Pension Benefits Standards Regulations, 1985. As well as conventional investments, each fund’s SIPP may provide for the use of derivative products to facilitate investment operations and to manage risk, provided that no short position is taken, no use of leverage is made and no guidelines and limits established in the SIPP are violated. Internally and externally managed funds are not permitted to directly invest in our securities and are prohibited from increasing grandfathered investments in our securities; any such grandfathered investments were made prior to the merger of BC TELECOM Inc. and TELUS Corporation, our predecessors.

Diversification

Our strategy for investments in equity securities is to be broadly diversified across individual securities, industry sectors and geographical regions. A meaningful portion (20% — 30% of total plan assets) of the plans’ investment in equity securities is allocated to foreign equity securities with the intent of further diversifying plan assets. Debt securities may include a meaningful allocation to mortgages, with the objective of enhancing cash flow and providing greater scope for the management of the bond component of the plan assets. Debt securities also may include real return bonds to provide inflation protection, consistent with the indexed nature of some defined benefit obligations. Real estate investments are used to provide diversification of plan assets, hedging of potential long-term inflation and comparatively stable investment income.

Relationship between plan assets and benefit obligations

With the objective of lowering the long-term costs of our defined benefit pension plans, we purposely mismatch plan assets and benefit obligations. This mismatching is effected by including equity investments in the long-term asset mix, as well as fixed income securities and mortgages with durations that differ from those of the benefit obligations.

As at December 31, 2017, the present value-weighted average timing of estimated cash flows for the obligations (duration) of the defined benefit pension plans was 13.9 years (2016 — 13.6 years) and of the other defined benefit plans was 6.8 years (2016 — 7.3 years). Compensation for liquidity issues that may have otherwise arisen from the mismatching of plan assets and benefit obligations is provided by broadly diversified investment holdings (including cash and short-term investments) and cash flows from dividends, interest and rents from those diversified investment holdings.

Asset allocations

Our defined benefit pension plans’ target asset allocations and actual asset allocations are as follows:

	Target allocation	Percentage of plan assets at end of year
Years ended December 31	2018	2017		2016
Equity securities	20-50%	35	%	34	%
Debt securities	40-75%	53	%	57	%
Real estate	5-25%	12	%	9	%
Other	0-10%	—		—

		100	%	100	%

(d)Employer contributions

The determination of the minimum funding amounts necessary for substantially all of our registered defined benefit pension plans is governed by the Pension Benefits Standards Act, 1985, which requires that, in addition to current service costs being funded, both going-concern and solvency valuations be performed on a specified periodic basis.

Any excess of plan assets over plan liabilities determined in the going-concern valuation reduces our minimum funding requirement for current service costs, but may not reduce the requirement to an amount less than the employees’ contributions. The going-concern valuation generally determines the excess (if any) of a plan’s assets over its liabilities on a projected benefit basis.

As of the date of these consolidated financial statements, the solvency valuation generally requires that a plan’s average solvency liabilities, determined on the basis that the plan is terminated on the valuation date, in excess of its assets (if any) be funded, at a minimum, in equal annual amounts over a period not exceeding five years. So as to manage the risk of overfunding the plans, which results from the solvency valuation for funding purposes utilizing the average solvency ratios, our funding may include the provision of letters of credit. As at December 31, 2017, undrawn letters of credit in the amount of $188 million (2016 — $175 million) secured certain obligations of the defined benefit pension plans, including non-registered, unfunded plans.

Our best estimate of fiscal 2018 employer contributions to our defined benefit plans is approximately $50 million for defined benefit pension plans. This estimate is based upon the mid-year 2017 annual funding valuations that were prepared by actuaries using December 31, 2016, actuarial valuations. The funding reports are based on the pension plans’ fiscal years, which are calendar years. The next annual funding valuations are expected to be prepared mid-year 2018.

(e)Assumptions

As referred to in Note 1(b), management is required to make significant estimates related to certain actuarial and economic assumptions that are used in determining defined benefit pension costs, defined benefit obligations accrued and pension plan assets. These significant estimates are of a long-term nature, consistent with the nature of employee future benefits.

Demographic assumptions

In determining the defined benefit pension expense recognized in net income for the years ended December 31, 2017 and 2016, we utilized the Canadian Institute of Actuaries CPM 2014 mortality tables.

Financial assumptions

The discount rate, which is used to determine a plan’s defined benefit obligations accrued, is based upon the yield on long-term, high-quality fixed-term investments, and is set annually. The rate of future increases in compensation is based upon current benefits policies and economic forecasts.

The significant weighted average actuarial assumptions arising from these estimates and adopted in measuring our defined benefit obligations accrued are as follows:

	2017		2016
Discount rate 1 used to determine:
Net benefit costs for the year ended December 31	3.80	%	4.00	%
Defined benefit obligations accrued as at December 31	3.40	%	3.80	%
Current service cost in subsequent fiscal year	3.50	%	4.00	%
Rate of future increases in compensation used to determine:
Net benefit costs for the year ended December 31	2.51	%	3.00	%
Defined benefit obligations accrued as at December 31	2.70	%	2.51	%

(1)

The discount rate disclosed in this table reflects the computation of an average discount rate that replicates the timing of the obligation cash flows.

Sensitivity of key assumptions

The sensitivity of our key assumptions for our defined benefit pension plans was as follows:

Years ended, or as at, December 31	2017						2016
Increase (decrease) (millions)	Change in obligations			Change in expense			Change in obligations			Change in expense
Sensitivity of key demographic assumptions to an increase of one year 1 in life expectancy	$	270		$	11		$	228		$	10
Sensitivity of key financial assumptions to a hypothetical decrease of 25 basis points 1 in:
Discount rate	$	337		$	16		$	310		$	17
Rate of future increases in compensation	$	(34	)	$	(3	)	$	(27	)	$	(3	)

(1)

These sensitivities are hypothetical and should be used with caution. Favourable hypothetical changes in the assumptions result in decreased amounts, and unfavourable hypothetical changes in the assumptions result in increased amounts, of the obligations and expenses. Changes in amounts based on a variation in assumptions of one year or 25 basis points generally cannot be extrapolated because the relationship of the change in assumption to the change in amounts may not be linear. Also, in this table, the effect of a variation in a particular assumption on the change in obligations or change in expenses is calculated without changing any other assumption; in reality, changes in one factor may result in changes in another (for example, increases in the discount rate may result in changes in expectations about the rate of future increases in compensation), which might magnify or counteract the sensitivities.

(f)Defined contribution plans — expense

Our total defined contribution pension plan costs recognized were as follows:

	2017				2016
Years ended December 31 (millions)	Total		Traditional		Transformative compensation (Notes 8, 16(c))		Total
Union pension plan and public service pension plan contributions	$	23	$	26	$	36	$	62
Other defined contribution pension plans	65		63		5		68

	$	88	$	89	$	41	$	130

We expect that our 2018 union pension plan and public service pension plan contributions will be approximately $25 million.

(g)Other defined benefit plans

For the year ended December 31, 2017, other defined benefit current service cost was $NIL (2016 — $1 million), financing cost was $1 million (2016 — $2 million) and other re-measurements recorded in other comprehensive income were $NIL (2016 — $NIL). Estimated future benefit payments from our other defined benefit plans, calculated as at December 31, 2017, are $2 million annually for the five-year period from 2018 to 2022 and $7 million for the five-year period from 2023 to 2027.

Fact Table
Network	11601 - Disclosure - restructuring and other costs (http://www.telus.com/role/DisclosureRestructuringAndOtherCosts)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfRestructuringAndOtherCostsExplanatory (label)

16restructuring and other costs

(a)Details of restructuring and other costs

With the objective of reducing ongoing costs, we incur associated incremental, non-recurring restructuring costs, as discussed further in (b) following. We may also incur atypical charges when undertaking major or transformational changes to our business or operating models, as discussed further in (c) following. We also include incremental external costs incurred in connection with business acquisition or disposition activity, as well as litigation costs, in the context of significant losses or settlements, in other costs.

Restructuring and other costs are presented in the Consolidated statements of income and other comprehensive income, as set out in the following table:

	Restructuring (b)				Other (c)				Total
Years ended December 31 (millions)	2017		2016		2017		2016		2017		2016
Goods and services purchased	$	66	$	62	$	37	$	—	$	103	$	62
Employee benefits expense	26		112		10		305		36		417

	$	92	$	174	$	47	$	305	$	139	$	479

(b)Restructuring provisions

Employee-related provisions and other provisions, as presented in Note 25, include amounts in respect of restructuring activities. In 2017, restructuring activities included ongoing and incremental efficiency initiatives, including personnel-related costs and rationalization of real estate. These initiatives were intended to improve our long-term operating productivity and competitiveness.

For the year ended December 31, 2017, incremental external costs were incurred in connection with business acquisition activity. In connection with our acquisition of a portion of Manitoba Telecom Services Inc. postpaid wireless subscribers, as discussed further in Note 18(b), non-recurring atypical business integration expenditures that would be considered neither restructuring costs nor part of the fair value of the net assets acquired have been included in other costs.

For the year ended December 31, 2016, other costs were in respect of immediately vesting, transformative compensation expense for substantially all of our existing unionized (see Note 29(c)) and non-unionized Canadian-situated workforces; a portion of the expense is considered share-based compensation for accounting purposes, as set out in Note 14(a). The compensation vested immediately, and thus was expensed when incurred, as there was no requisite service period of the recipients. The one-time payment to our existing unionized Canadian-situated workforce was compensation in respect of collective agreement concessions that moderate future labour costs and underpin productivity improvements, as well as in lieu of salary increases that would otherwise have been effective July 1, 2016, 2017 and 2018; the one-time payment to our non-unionized Canadian-situated workforce was in lieu of general salary increases that would otherwise have been awarded in 2017 and 2018.

Fact Table
Network	11701 - Disclosure - property, plant and equipment (http://www.telus.com/role/DisclosurePropertyPlantAndEquipment)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory (label)

17property, plant and equipment

(millions)	Note	Network assets			Buildings and leasehold improvements			Other			Land			Assets under construction			Total
At cost
As at January 1, 2016		$	27,191		$	2,847		$	1,120		$	55		$	413		$	31,626
Additions 1		762			45			39			—			1,472			2,318
Additions arising from business acquisitions		—			1			1			—			—			2
Dispositions, retirements and other		(739		)	(78		)	(223		)	—			—			(1,040		)
Assets under construction put into service		1,070			139			84			—			(1,293		)	—

As at December 31, 2016		28,284			2,954			1,021			55			592			32,906
Additions 1		972			51			44			—			1,426			2,493
Additions arising from business acquisitions	18(b)	25			8			9			—			—			42
Dispositions, retirements and other		(1,724		)	(63		)	(48		)	(7		)	—			(1,842		)
Assets under construction put into service		1,167			127			69			—			(1,363		)	—

As at December 31, 2017		$	28,724		$	3,077		$	1,095		$	48		$	655		$	33,599

Accumulated depreciation
As at January 1, 2016		$	19,351		$	1,810		$	729		$	—		$	—		$	21,890

Depreciation		1,357			99			108			—			—			1,564
Dispositions, retirements and other		(758		)	(73		)	(181		)	—			—			(1,012		)

As at December 31, 2016		19,950			1,836			656			—			—			22,442
Depreciation		1,396			106			115			—			—			1,617
Dispositions, retirements and other		(1,708		)	(58		)	(62		)	—			—			(1,828		)

As at December 31, 2017		$	19,638		$	1,884		$	709		$	—		$	—		$	22,231

Net book value
As at December 31, 2016		$	8,334		$	1,118		$	365		$	55		$	592		$	10,464

As at December 31, 2017		$	9,086		$	1,193		$	386		$	48		$	655		$	11,368

(1)

For the year ended December 31, 2017, additions include $7 (2016 — $(40)) in respect of asset retirement obligations (see Note 25).

As at December 31, 2017, our contractual commitments for the acquisition of property, plant and equipment totalled $184 million over a period ending December 31, 2019 (2016 — $436 million over a period ending December 31, 2020).

Fact Table
Network	11801 - Disclosure - intangible assets and goodwill (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwill)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfIntangibleAssetsExplanatory (label)

18intangible assets and goodwill

(a)Intangible assets and goodwill, net

	Intangible assets subject to amortization															Intangible assets with indefinite lives
(millions)	Customer contracts, related customer relationships and leasehold interests			Software			Access to rights-of- way and other			Assets under construction			Total			Spectrum licences		Total intangible assets			Goodwill 1			Total intangible assets and goodwill
At cost
As at January 1, 2016	$	473		$	3,801		$	90		$	216		$	4,580		$	8,480	$	13,060		$	4,125		$	17,185
Additions	—			50			4			575			629			164		793			—			793
Additions arising from business acquisitions	12			4			—			—			16			—		16			22			38
Dispositions, retirements and other (including capitalized interest (see Note 9))	—			(137		)	(3		)	—			(140		)	49		(91		)	—			(91		)
Assets under construction put into service	—			577			2			(579		)	—			—		—			—			—
Net foreign exchange differences	—			—			—			—			—			—		—			4			4

As at December 31, 2016	485			4,295			93			212			5,085			8,693		13,778			4,151			17,929
Additions	—			74			5			538			617			—		617			—			617
Additions arising from business acquisitions (b)	134			101			—			—			235			—		235			433			668
Dispositions, retirements and other	(61		)	(209		)	(1		)	—			(271		)	—		(271		)	—			(271		)
Assets under construction put into service	—			406			—			(406		)	—			—		—			—			—
Net foreign exchange differences	—			—			—			—			—			—		—			(3		)	(3		)

As at December 31, 2017	$	558		$	4,667		$	97		$	344		$	5,666		$	8,693	$	14,359		$	4,581		$	18,940

Accumulated amortization
As at January 1, 2016	$	280		$	2,739		$	56		$	—		$	3,075		$	—	$	3,075		$	364		$	3,439
Amortization	43			436			4			—			483			—		483			—			483
Dispositions, retirements and other	—			(143		)	(1		)	—			(144		)	—		(144		)	—			(144		)

As at December 31, 2016	323			3,032			59			—			3,414			—		3,414			364			3,778
Amortization	48			500			4			—			552			—		552			—			552
Dispositions, retirements and other	(61		)	(202		)	(2		)	—			(265		)	—		(265		)	—			(265		)

As at December 31, 2017	$	310		$	3,330		$	61		$	—		$	3,701		$	—	$	3,701		$	364		$	4,065

Net book value
As at December 31, 2016	$	162		$	1,263		$	34		$	212		$	1,671		$	8,693	$	10,364		$	3,787		$	14,151

As at December 31, 2017	$	248		$	1,337		$	36		$	344		$	1,965		$	8,693	$	10,658		$	4,217		$	14,875

(1)

Accumulated amortization of goodwill is amortization recorded prior to 2002; there are no accumulated impairment losses in the accumulated amortization of goodwill.

As at December 31, 2017, our contractual commitments for the acquisition of intangible assets totalled $36 million over a period ending December 31, 2020 (2016 — $82 million over a period ending December 31, 2020).

(b)Business acquisitions

Manitoba Telecom Services Inc. postpaid wireless

On May 2, 2016, BCE Inc. announced that it had entered into a definitive agreement to acquire all issued and outstanding shares of Manitoba Telecom Services Inc.; as of September 30, 2016, all court and shareholder approvals had been obtained; as of February 15, 2017, all regulatory approvals had been obtained; and the transaction closed on March 17, 2017. In June 2016, we submitted a notification and advanced ruling request to the Competition Bureau regarding our previously announced agreement in principle with BCE Inc., pursuant to which we intended to acquire a portion of Manitoba Telecom Services Inc.’s postpaid wireless subscribers, certain network assets and dealer locations in Manitoba, upon the successful completion of BCE Inc.’s acquisition of Manitoba Telecom Services Inc.

On April 1, 2017, we acquired postpaid wireless customer contracts, certain network assets and rights to 15 retail locations in Manitoba. The primary reason for this acquisition is to increase the number of our postpaid wireless subscribers in Manitoba and to enhance our distribution of wireless products and customer services across all of Manitoba.

The primary factor that contributed to the recognition of goodwill was the earnings capacity of the acquired business in excess of the net tangible and intangible assets acquired (such excess arising from the benefits of acquiring established businesses in multiple locations). The amount assigned to goodwill is not expected to be deductible for income tax purposes.

Kroll Computer Systems Inc.

On May 15, 2017, we acquired 100% of Kroll Computer Systems Inc., the primary reason for which is to enhance our geographic reach and the quality of our product offering as a national pharmacy management services provider.

The primary factor that contributed to the recognition of goodwill was the earnings capacity of the acquired business in excess of the net tangible and intangible assets acquired (such excess arising from the acquired workforce and the benefits of acquiring an established business). The amount assigned to goodwill is expected to be deductible for income tax purposes.

Voxpro Limited

On August 31, 2017, we acquired 55% of Voxpro Limited, a business process outsourcing and contact centre services company with facilities in Ireland, the United States and Romania. The investment was made with a view to expanding further into supporting customers providing Internet-related services and products, bolstering sales capabilities in our chosen markets, and acquiring multi-site redundancy in support of other facilities.

In respect of the 55% acquired business, we concurrently provided a written put option to the remaining selling shareholders under which they could put the remaining 45% of the shares commencing in 2021. The acquisition-date fair value of the puttable shares held by the non-controlling shareholders has been recorded as a provision (see Note 25). Also concurrent with our acquisition of the initial 55% interest, the non-controlling shareholders provided us with a purchased call option, which mirrors the written put option.

The primary factor that contributed to the recognition of goodwill was the earnings capacity of the acquired business in excess of the net tangible and intangible assets acquired (such excess arising from the acquired workforce and the benefits of acquiring an established business). The amount assigned to goodwill is not expected to be deductible for income tax purposes.

Individually immaterial transactions

During the years ended December 31, 2017 and 2016, we acquired 100% ownership of multiple businesses complementary to our existing lines of business. The primary factor that contributed to the recognition of goodwill was the earnings capacity of the acquired businesses in excess of the net tangible and intangible assets acquired (such excess arising from: the low levels of tangible assets relative to the earnings capacity of the businesses; expected synergies; the benefits of acquiring established businesses with certain capabilities in their industries; and the geographic presence of the acquired businesses). A portion of the amounts assigned to goodwill may be deductible for income tax purposes.

Acquisition-date fair values

The acquisition-date fair values assigned to the assets acquired and liabilities assumed are set out in the following table:

	Manitoba Telecom Services Inc. postpaid wireless			Kroll Computer Systems Inc.		Voxpro Limited 1		Individually immaterial transactions		Total
Assets
Current assets
Cash	$	—		$	1	$	3	$	—	$	4
Accounts receivable 2	9			3		20		—		32
Other	7			—		4		1		12

	16			4		27		1		48

Non-current assets
Property, plant and equipment
Network assets	23			—		—		2		25
Buildings and leasehold improvements	—			—		8		—		8
Other	—			1		8		—		9
Intangible assets subject to amortization 3
Customer contracts, customer relationships (including those related to customer contracts) and leasehold interests	54			26		38		16		134
Software	—			101		—		—		101

	77			128		54		18		277

Total identifiable assets acquired	93			132		81		19		325

Liabilities
Current liabilities
Accounts payable and accrued liabilities	1			1		19		—		21
Advance billings and customer deposits	2			4		—		1		7
Provisions	7			—		—		—		7

	10			5		19		1		35

Non-current liabilities
Provisions	6			3		—		—		9
Other long-term liabilities	—			—		1		—		1
Deferred income taxes	18			—		5		—		23

	24			3		6		—		33

Total liabilities assumed	34			8		25		1		68

Net identifiable assets acquired	59			124		56		18		257
Goodwill	207			126		85		15		433

Net assets acquired	$	266		$	250	$	141	$	33	$	690

Acquisition effected by way of:
Cash consideration	$	306		$	150	$	58	$	31	$	545
Accrued receivable 4	(40		)	—		—		—		(40		)
Accounts payable and accrued liabilities	—			—		—		2		2
Provisions	—			—		60		—		60
Issue of TELUS Corporation Common Shares	—			100		—		—		100
Pre-existing relationship effectively settled	—			—		23		—		23

	$	266		$	250	$	141	$	33	$	690

(1)

The purchase price allocation, primarily in respect of customer relationships, had not been finalized as of the date of these consolidated financial statements. As is customary in a business acquisition transaction, until the time of acquisition of control, we did not have full access to Voxpro Limited’s books and records. Upon having sufficient time to review Voxpro Limited’s books and records, we expect to finalize our purchase price allocation.

Prior to acquisition, we had advanced $23 to Voxpro Limited; this pre-existing relationship was effectively settled at the date of the business combination with no gain or loss recognized.

(2)

The fair value of the accounts receivable is equal to the gross contractual amounts receivable and reflects the best estimates at the acquisition date of the contractual cash flows expected to be collected.

(3)

Customer contracts and customer relationships (including those related to customer contracts) are expected to be amortized over a period of 8 to 10 years; software is expected to be amortized over a period of 10 years.

(4)

The total transaction price is a function of the number of qualifying postpaid wireless subscribers acquired. If less than the targeted number of qualifying postpaid wireless subscribers is acquired, the total transaction price will be reduced on a pro-rated basis; a receivable has been accrued for the estimate of such reduction, net of associated adjustments.

To the extent that the actual number of qualifying wireless subscribers acquired is greater (less) than provided for in the purchase price allocation, such adjustment to the transaction price will result in a charge (recovery) recorded in Other operating income, reflecting treatment as a contingent consideration deposit; during the year ended December 31, 2017, we recorded a change in the contingent consideration receivable of $26 (Note 7). We have accrued our best estimate of the amount of the contingent consideration deposit we expect to recover.

Pro forma disclosures

The following pro forma supplemental information represents certain results of operations as if the business acquisitions noted above had been completed at the beginning of the fiscal 2017 year.

Year ended December 31, 2017 (millions except per share amounts)	As reported 1		Pro forma 2
Operating revenues	$	13,304	$	13,426
Net income	$	1,479	$	1,474
Net income per Common Share
Basic	$	2.46	$	2.45
Diluted	$	2.46	$	2.45

(1)

As reported operating revenues and net income include $49 and $20, respectively, in respect of the operations of Manitoba Telecom Services Inc. postpaid wireless (excluding the change in the contingent consideration receivable (Note 7)), $17 and $NIL, respectively, in respect of the operations of Kroll Computer Systems Inc., and $51 and $NIL, respectively, in respect of the operations of Voxpro Limited.

(2)

Pro forma amounts reflect the acquired businesses. In respect of Manitoba Telecom Services Inc. postpaid wireless, pro forma adjustments for revenues and goods and services purchased are not available as the seller’s information systems were not configured to capture such information; as a proxy, the revenues and goods and services purchased amounts for the three-month period ended June 30, 2017, have been used for pro forma purposes. The results of the acquired businesses have been included in our Consolidated statements of income and other comprehensive income effective the dates of acquisition.

The pro forma supplemental information is based on estimates and assumptions that are believed to be reasonable. The pro forma supplemental information is not necessarily indicative of our consolidated financial results in future periods or the actual results that would have been realized had the business acquisitions been completed at the beginning of the periods presented. The pro forma supplemental information includes incremental intangible asset amortization, financing and other charges as a result of the acquisitions, net of the related tax effects.

(c)Business acquisitions — subsequent to reporting period

AlarmForce Industries

On January 4, 2018, we acquired 100% of the customers, assets and operations of AlarmForce Industries Inc. in British Columbia, Alberta and Saskatchewan, for cash consideration of approximately $69 million; the primary reason for which is to leverage our telecommunications infrastructure and expertise to continue to enhance connected home, business, security and health services for our customers.

As of February 8, 2018, our initial provision for the net identifiable assets acquired is in the range of $10 million-$20 million; as is customary in a business acquisition transaction, until the time of acquisition of control, we did not have full access to the relevant portions of the books and records of AlarmForce Industries. Upon having sufficient time to review the relevant portions of the books and records of AlarmForce Industries, as well as obtaining new and additional information about the related facts and circumstances as of the acquisition date, we will adjust the provisional amounts for identifiable assets acquired and liabilities assumed and thus finalize our purchase price allocation.

Xavient Information Systems

On February 6, 2018, through our TELUS International (Cda) Inc. subsidiary, we acquired 65% of Xavient Information Systems, a group of information technology consulting and software services companies with facilities in the United States and India, for consideration of approximately $144 million (US$115 million) in cash and approximately $19 million (US$15 million) in TELUS International (Cda) Inc. common shares. The investment was made with a view to enhancing our ability to provide complex and higher-value information technology services, improve our related sales and solutioning capabilities and acquire multi-site redundancy in support of other facilities.

In respect of the 65% acquired business, we concurrently provided a written put option to the remaining selling shareholders; the written put option for the remaining 35% of the economic interest would become exercisable no later than December 31, 2020. The acquisition-date fair value of the puttable shares held by the non-controlling shareholders will be recorded as a provision in the three-month period ended March 31, 2018; we currently estimate that such fair value would be in the range of $150 million (US$120 million). Also concurrent with our acquisition of the initial 65% interest, the non-controlling shareholders provided us with a purchased call option, which substantially mirrors the written put option.

As of February 8, 2018, our initial provision for the net identifiable assets acquired is in the range of $95 million-$125 million (US$75 million-US$100 million); as is customary in a business acquisition transaction, until the time of acquisition of control, we did not have full access to the books and records of Xavient Information Systems. Upon having sufficient time to review the books and records of Xavient Information Systems, as well as obtaining new and additional information about the related facts and circumstances as of the acquisition date, we will adjust the provisional amounts for identifiable assets acquired and liabilities assumed and thus finalize our purchase price allocation.

(d)Intangible assets with indefinite lives — spectrum licences

Our intangible assets with indefinite lives include spectrum licences granted by Innovation, Science and Economic Development Canada which are used for the provision of both mobile and fixed wireless services. The spectrum licence policy terms indicate that the spectrum licences will likely be renewed. We expect our spectrum licences to be renewed every 20 years following a review of our compliance with licence terms. In addition to current usage, our licensed spectrum can be used for planned and new technologies. As a result of our assessment of the combination of these significant factors, we currently consider our spectrum licences to have indefinite lives and, as referred to in Note 1(b), this represents a significant judgment for us.

(e)Impairment testing of intangible assets with indefinite lives and goodwill

General

As referred to in Note 1(i), the carrying values of intangible assets with indefinite lives and goodwill are periodically tested for impairment and, as referred to in Note 1(b), this test represents a significant estimate for us, while also requiring significant judgments to be made.

The allocated carrying values of intangible assets with indefinite lives and goodwill are set out in the following table.

	Intangible assets with indefinite lives				Goodwill				Total
As at December 31 (millions)	2017		2016		2017		2016		2017		2016
Wireless	$	8,693	$	8,693	$	2,860	$	2,647	$	11,553	$	11,340
Wireline	—		—		1,357		1,140		1,357		1,140

	$	8,693	$	8,693	$	4,217	$	3,787	$	12,910	$	12,480

The recoverable amounts of the cash-generating units’ assets have been determined based on a fair value less costs of disposal calculation. There is a material degree of uncertainty with respect to the estimates of the recoverable amounts of the cash-generating units’ assets, given the necessity of making key economic assumptions about the future. Recoverable amounts based on the fair value less costs of disposal are categorized as Level 3 fair value measures.

We validate our recoverable amount calculation results through a market-comparable approach and an analytical review of industry facts and facts that are specific to us. The market-comparable approach uses current (at time of test) market consensus estimates and equity trading prices for U.S. and Canadian firms in the same industry. In addition, we ensure that the combination of the valuations of the cash-generating units is reasonable based on our current (at time of test) market value.

Key assumptions

The fair value less costs of disposal and the value in use calculations both use discounted cash flow projections that employ the following key assumptions: future cash flows and growth projections (including judgments about the allocation of future capital expenditures to support both wireless and wireline operations); associated economic risk assumptions and estimates of the likelihood of achieving key operating metrics and drivers; estimates of future generational infrastructure capital expenditures; and the future weighted average cost of capital. We consider a range of reasonably possible amounts to use for key assumptions and decide upon amounts that represent management’s best estimates of market amounts. In the normal course, we make changes to key assumptions so that they reflect current (at time of test) economic conditions, updates of historical information used to develop the key assumptions and changes (if any) in our debt ratings.

The key assumptions for cash flow projections are based upon our approved financial forecasts, which span a period of three years and are discounted, for December 2017 annual test purposes, at a consolidated post-tax notional rate of 7.0% (2016 — 7.0%). For impairment testing valuations, cash flows subsequent to the three-year projection period are extrapolated, for December 2017 annual test purposes, using perpetual growth rates of 2.25% (2016 — 2.0%) for each of the wireless cash-generating unit and the wireline cash-generating unit; these growth rates do not exceed the long-term average growth rates observed in the markets in which we operate.

We believe that any reasonably possible change in the key assumptions on which the calculation of the recoverable amounts of our cash-generating units is based would not cause the cash-generating units’ carrying values (including the intangible assets with indefinite lives and the goodwill allocated to each cash-generating unit) to exceed their recoverable amounts. If the future were to adversely differ from management’s best estimates of key assumptions and associated cash flows were to be materially adversely affected, we could potentially experience future material impairment charges in respect of our intangible assets with indefinite lives and goodwill.

Sensitivity testing

Sensitivity testing was conducted as a part of the December 2017 annual impairment test, a component of which was hypothetical changes in the future weighted average cost of capital. Stress testing included a scenario of moderate declines in annual cash flows with all other assumptions being held constant; under this scenario, we would be able to recover the carrying values of our intangible assets with indefinite lives and goodwill for the foreseeable future.

Fact Table
Network	11901 - Disclosure - leases (http://www.telus.com/role/DisclosureLeases)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfLeasesExplanatory (label)

19leases

We occupy leased premises in various locations and have the right of use of land, buildings and equipment under operating leases. For the year ended December 31, 2017, real estate and vehicle operating lease expenses, which are net of the amortization of deferred gains on the sale-leaseback of buildings and the occupancy costs associated with leased real estate, were $191 million (2016 — $176 million); occupancy costs associated with leased real estate totalled $128 million (2016 — $133 million).

As referred to in Note 16, we have consolidated our administrative real estate holdings and, in some instances, this has resulted in subletting land and buildings. The future minimum lease payments under operating leases are as follows:

As at December 31 (millions)	2017						2016
Years ending	Operating leases with arm’s-length lessors 1		Operating leases with related party lessors 2		Total		Operating leases with arm’s-length lessors1		Operating leases with related party lessors 2		Total
1 year hence	$	218	$	6	$	224	$	211	$	6	$	217
2 years hence	191		12		203		192		6		198
3 years hence	169		13		182		171		12		183
4 years hence	147		13		160		147		13		160
5 years hence	122		13		135		125		13		138
Thereafter	534		208		742		599		220		819

	$	1,381	$	265	$	1,646	$	1,445	$	270	$	1,715

(1)

Immaterial amounts for minimum lease receipts from sublet land and buildings have been netted against the minimum lease payments in this table. Minimum lease payments exclude occupancy costs and thus will differ from future amounts reported for operating lease expenses. As at December 31, 2017, commitments for occupancy costs under operating leases totalled $816 (2016 — $869).

(2)

As set out in Note 21(c), we have entered into leases with the real estate joint ventures. This table includes 100% of the minimum lease payment amounts due under these leases; of the total, $109 (2016 — $112) is due to our economic interests in the real estate joint ventures and $156 (2016 — $158) is due to our partners’ economic interests in the real estate joint ventures.

Of the total amount above as at December 31, 2017:

Approximately 33% (2016 — 34%) was in respect of our five largest leases, all of which were for office premises over various terms, with expiry dates ranging from 2024 to 2036 (2016 — ranging from 2024 to 2036); the weighted average remaining term of these leases is approximately 13 years (2016 — 14 years).

Approximately 29% (2016 — 30%) was in respect of wireless site leases; the weighted average remaining term of these leases is approximately 17 years (2016 — 17 years).

Most of our leases for real estate that we use for office or network (including wireless site) purposes typically have extension options which we use to protect our investment in leasehold improvements (including wireless site equipment) and/or which reflect the importance of the underlying right-of-use lease assets to our operations.

See Note 2(b) for details of significant changes to IFRS-IASB which are not yet effective and have not yet been applied, but which will significantly affect the timing of the recognition of operating lease expenses and their recognition in the Consolidated statement of financial position, as well as their classification in the Consolidated statement of income and other comprehensive income and the Consolidated statement of cash flows.

Fact Table
Network	12001 - Disclosure - other long-term assets (http://www.telus.com/role/DisclosureOtherLongTermAssets)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfOtherLongTermAssetsTextBlock (label)

20other long-term assets

As at December 31 (millions)	Note	2017		2016
Pension assets	15(a)	$	156	$	358
Investments		41		62
Prepaid maintenance		57		62
Real estate joint venture advances	21(c)	47		21
Real estate joint ventures	21(c)	15		30
Other		105		107

		$	421	$	640

Fact Table
Network	12101 - Disclosure - real estate joint ventures (http://www.telus.com/role/DisclosureRealEstateJointVentures)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfUnconsolidatedStructuredEntitiesExplanatory (label)

21real estate joint ventures

(a)General

In 2011, we partnered, as equals, with an arm’s-length party in a residential condominium, retail and commercial real estate redevelopment project, TELUS Garden, in Vancouver, British Columbia. TELUS is a tenant in TELUS Garden, which is now our global headquarters. The new-build office tower received 2009 Leadership in Energy and Environmental Design (LEED) Platinum certification, and the neighbouring new-build residential condominium tower was built to the LEED Gold standard.

In 2013, we partnered, as equals, with two arm’s-length parties (one of which is our TELUS Garden partner) in a residential, retail and commercial real estate redevelopment project, TELUS Sky, in Calgary, Alberta. The new-build tower, scheduled for completion in 2019, is to be built to the LEED Platinum standard.

(b)Real estate joint ventures — summarized financial information

As at December 31 (millions)	2017		2016
ASSETS
Current assets
Cash and temporary investments, net	$	20	$	15
Escrowed deposits for tenant inducements and liens	1		5
Sales contract deposits held by arm’s-length trustee	—		2
Other	4		6
Property under development — residential condominiums (subject to sales contracts)	—		13

	25		41

Non-current assets
Property under development — investment property	194		121
Investment property	256		261

	450		382

	$	475	$	423

LIABILITIES AND OWNERS’ EQUITY
Current liabilities
Accounts payable and accrued liabilities	$	13	$	18
Sales contract deposits
Payable	—		3
Held by arm’s-length trustee	—		2
Current portion of 3.7% mortgage and senior secured 3.4% bonds	5		4
Construction holdback liabilities	10		7

	28		34

Non-current liabilities
Construction credit facilities	141		63
3.7% mortgage due September 2024	27		—
Senior secured 3.4% bonds due July 2025	208		213

	376		276

Liabilities	404		310

Owners’ equity
TELUS 1	29		48
Other partners	42		65

	71		113

	$	475	$	423

(1)

The equity amounts recorded by the real estate joint ventures differ from those recorded by us by the amount of the deferred gains on our real estate contributed and the valuation provision we have recorded in excess of that recorded by one of the real estate joint ventures.

Years ended December 31 (millions)	2017			2016
Revenue
From investment property	$	34		$	34
From sale of residential condominiums	$	19		$	262
Depreciation and amortization	$	8		$	8
Interest expense 1	$	8		$	10
Net income (loss) and comprehensive income (loss) 2	$	(6	)	$	72

(1)

During the year ended December 31, 2017, the real estate joint ventures capitalized $3 (2016 — $4) of financing costs.

(2)

(c)Our real estate joint ventures activity

Our real estate joint ventures investment activity is set out in the following table.

Years ended December 31 (millions)	2017								2016
	Loans and receivables 1		Equity 2			Total			Loans and receivables 1			Equity 2			Total
Related to real estate joint ventures’ statements of income and other comprehensive income
Comprehensive income (loss) attributable to us 3	$	—	$	2		$	2		$	—		$	33		$	33
Related to real estate joint ventures’ statements of financial position
Items not affecting currently reported cash flows
Recognition of gain initially deferred on our real estate initially contributed	—		1			1			—			8			8
Construction credit facilities financing costs charged by us and other (Note 7)	—		—			—			1			—			1
Cash flows in the current reporting period
Construction credit facilities
Amounts advanced	26		—			26			33			—			33
Amounts repaid	—		—			—			(63		)	—			(63		)
Financing costs paid to us	—		—			—			(1		)	—			(1		)
Repayment of funds advanced	—		—			—			(18		)	—			(18		)
Funds repaid to us and earnings distributed	—		(18		)	(18		)	—			(21		)	(21		)

Net increase (decrease)	26		(15		)	11			(48		)	20			(28		)
Real estate joint ventures carrying amounts
Balance, beginning of period	21		30			51			69			25			94
Valuation provision	—		—			—			—			(15		)	(15		)

Balance, end of period	$	47	$	15		$	62		$	21		$	30		$	51

(1)

Loans and receivables are included in our Consolidated statements of financial position as Real estate joint venture advances and are comprised of advances under construction credit facilities (see (d)) and, prior to its repayment during the year ended December 31, 2016, an $18 mortgage on the TELUS Garden residential condominium tower.

(2)

We account for our interests in the real estate joint ventures using the equity method of accounting.

(3)

As the real estate joint ventures are partnerships, no provision for income taxes of the partners is made in determining the real estate joint ventures’ net income (loss) and comprehensive income (loss); provision for income taxes is made in determining the comprehensive income (loss) attributable to us.

During the year ended December 31, 2017, the TELUS Garden real estate joint venture recognized $12 million (2016 — $11 million) of revenue from our TELUS Garden office tenancy; of this amount, one-half is due to our economic interest in the real estate joint venture and one-half is due to our partner’s economic interest in the real estate joint venture.

(d)Commitments and contingent liabilities

Construction commitments

The TELUS Sky real estate joint venture is expected to spend a total of approximately $400 million on the construction of a mixed-use tower. As at December 31, 2017, the real estate joint venture’s construction-related contractual commitments were approximately $82 million through to 2019 (2016 — $121 million through to 2018).

Construction credit facilities

The TELUS Sky real estate joint venture has a credit agreement with three Canadian financial institutions (as 66-2/3% lender) and TELUS Corporation (as 33-1/3% lender) to provide $342 million of construction financing for the project. The TELUS Garden real estate joint venture had a credit agreement with two Canadian financial institutions (as 50% lender) and TELUS Corporation (as 50% lender) to provide construction financing for the residential condominium project; as at December 31, 2016, all outstanding amounts had been repaid.

The construction credit facilities contain customary real estate construction financing representations, warranties and covenants and are secured by demand debentures constituting first fixed and floating charge mortgages over the underlying real estate assets. The construction credit facilities are available by way of bankers’ acceptance or prime loan and bear interest at rates in line with similar construction financing facilities.

As at December 31 (millions)	Note	2017		2016
Construction credit facilities commitment — TELUS Corporation
Undrawn	4(c)	$	67	$	93
Advances		47		21

		114		114
Construction credit facilities commitment — other		228		228

		$	342	$	342

Fact Table
Network	12201 - Disclosure - short-term borrowings (http://www.telus.com/role/DisclosureShortTermBorrowings)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DisclosureOfBorrowingsExplanatory (label)	22short-term borrowings On July 26, 2002, one of our subsidiaries, TELUS Communications Inc., entered into an agreement with an arm’s-length securitization trust associated with a major Schedule I bank under which it is able to sell an interest in certain trade receivables up to a maximum of $500 million (2016 — $500 million). This revolving-period securitization agreement term ends December 31, 2018, and it requires minimum cash proceeds of $100 million from monthly sales of interests in certain trade receivables. TELUS Communications Inc. is required to maintain a credit rating of at least BB (2016 — BB) from Dominion Bond Rating Service or the securitization trust may require the sale program to be wound down prior to the end of the term. When we sell our trade receivables, we retain reserve accounts, which are retained interests in the securitized trade receivables, and servicing rights. As at December 31, 2017, we had sold to the trust (but continued to recognize) trade receivables of $119 million (2016 — $116 million). Short-term borrowings of $100 million (2016 — $100 million) are comprised of amounts advanced to us by the arm’s-length securitization trust pursuant to the sale of trade receivables. The balance of short-term borrowings (if any) is comprised of amounts drawn on our bilateral bank facilities.

Fact Table
Network	12301 - Disclosure - accounts payable and accrued liabilities (http://www.telus.com/role/DisclosureAccountsPayableAndAccruedLiabilities)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory (label)

23accounts payable and accrued liabilities

As at December 31 (millions)	2017		2016
Accrued liabilities	$	1,066	$	1,013
Payroll and other employee-related liabilities	403		460
Restricted stock units liability	66		55

	1,535		1,528
Trade accounts payable	717		578
Interest payable	147		144
Other	61		80

	$	2,460	$	2,330

Fact Table
Network	12401 - Disclosure - advance billings and customer deposits (http://www.telus.com/role/DisclosureAdvanceBillingsAndCustomerDeposits)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDepositsFromCustomersExplanatory (label)

24advance billings and customer deposits

As at December 31 (millions)	2017		2016
Advance billings	$	747	$	697
Deferred customer activation and connection fees	13		17
Customer deposits	21		15
Regulatory deferral accounts	1		8

	$	782	$	737

Fact Table
Network	12501 - Disclosure - provisions (http://www.telus.com/role/DisclosureProvisions)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory (label)

25provisions

(millions)	Asset retirement obligation			Employee- related			Written put options			Other			Total
As at January 1, 2016	$	377		$	109		$	46		$	98		$	630
Additions 1	15			113			17			54			199
Use	(9		)	(141		)	(54		)	(41		)	(245		)
Reversal	—			(4		)	—			(8		)	(12		)
Interest effect 2	(44		)	—			1			—			(43		)
Foreign exchange effects	—			—			(10		)	—			(10		)

As at December 31, 2016	339			77			—			103			519
Additions 1	13			39			71			58			181
Use	(6		)	(75		)	—			(40		)	(121		)
Reversal 3	(53		)	(5		)	(11		)	(1		)	(70		)
Interest effect 2	58			—			2			—			60
Foreign exchange effects	—			—			1			—			1

As at December 31, 2017	$	351		$	36		$	63		$	120		$	570

Current	$	11		$	76		$	—		$	37		$	124
Non-current	328			1			—			66			395

As at December 31, 2016	$	339		$	77		$	—		$	103		$	519

Current	$	6		$	35		$	—		$	37		$	78
Non-current	345			1			63			83			492

As at December 31, 2017	$	351		$	36		$	63		$	120		$	570

(1)

Employee-related additions are net of share-based compensation of $(7) (2016 — $4).

(2)

The difference of $47 (2016 — $(55)) between the interest effect in this table and the amount disclosed in Note 9 is in respect of the change in the discount rates applicable to the provision, such difference being included in the cost of the associated asset(s) by way of being included with (netted against) the additions detailed in Note 17.

(3)

The written put option reversal is an adjustment to the Voxpro Limited purchase price allocation disclosed in Note 18(b).

Asset retirement obligation

We establish provisions for liabilities associated with the retirement of property, plant and equipment when those obligations result from the acquisition, construction, development and/or normal operation of the assets. We expect that the cash outflows in respect of the balance accrued as at the financial statement date will occur proximate to the dates these assets are retired.

Employee-related

The employee-related provisions are largely in respect of restructuring activities (as discussed further in Note 16(b)). The timing of the cash outflows in respect of the balance accrued as at the financial statement date is substantially short-term in nature.

Written put options

In connection with certain business acquisitions, we have established provisions for written put options in respect of non-controlling interests. No cash outflows for the written put options outstanding at December 31, 2017, are expected prior to their initial exercisability in 2021.

Other

The provisions for other include: legal claims; non-employee related restructuring activities (as discussed further in Note 16); and contract termination costs and onerous contracts related to business acquisitions. Other than as set out following, we expect that the cash outflows in respect of the balance accrued as at the financial statement date will occur over an indeterminate multi-year period.

As discussed further in Note 29, we are involved in a number of legal claims and we are aware of certain other possible legal claims. In respect of legal claims, we establish provisions, when warranted, after taking into account legal assessments, information presently available, and the expected availability of recourse. The timing of cash outflows associated with legal claims cannot be reasonably determined.

In connection with certain business acquisitions, we have established provisions for contingent consideration, contract termination costs and onerous contracts acquired. In respect of contract termination costs and onerous contracts acquired, cash outflows are expected to occur through mid-2018.

Fact Table
Network	12601 - Disclosure - long-term debt (http://www.telus.com/role/DisclosureLongTermDebt)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfLongTermBorrowingsExplanatory (label)

26long-term debt

(a)Details of long-term debt

As at December 31 (millions)	Note	2017		2016
TELUS Corporation notes	(b)	$	11,561	$	11,367
TELUS Corporation commercial paper	(c)	1,140		613
TELUS Communications Inc. debentures	(e)	620		619
TELUS International (Cda) Inc. credit facility	(f)	339		332

Long-term debt		$	13,660	$	12,931

Current		$	1,404	$	1,327
Non-current		12,256		11,604

Long-term debt		$	13,660	$	12,931

(b)TELUS Corporation notes

The notes are senior, unsecured and unsubordinated obligations and rank equally in right of payment with all of our existing and future unsecured, unsubordinated obligations, are senior in right of payment to all of our existing and future subordinated indebtedness, and are effectively subordinated to all existing and future obligations of, or guaranteed by, our subsidiaries. The indentures governing the notes contain certain covenants which, among other things, place limitations on our ability and the ability of certain of our subsidiaries to: grant security in respect of indebtedness; enter into sale-leaseback transactions; and incur new indebtedness.

							Principal face amount				Redemption present value spread
Series 1	Issued	Maturity	Issue price		Effective interest rate 2		Originally issued		Outstanding at financial statement date		Basis points	Cessation date
4.95% Notes, Series CD	March 2007	March 2017	$	999.53	4.96	%	$	700 million	$	NIL	24 3	N/A
5.05% Notes, Series CG 4	December 2009	December 2019	$	994.19	5.13	%	$	1.0 billion	$	1.0 billion	45.5 3	N/A
5.05% Notes, Series CH 4	July 2010	July 2020	$	997.44	5.08	%	$	1.0 billion	$	1.0 billion	47 3	N/A
3.35% Notes, Series CJ 4	December 2012	March 2023	$	998.83	3.36	%	$	500 million	$	500 million	40 5	Dec. 15, 2022
3.35% Notes, Series CK 4	April 2013	April 2024	$	994.35	3.41	%	$	1.1 billion	$	1.1 billion	36 5	Jan. 2, 2024
4.40% Notes, Series CL 4	April 2013	April 2043	$	997.68	4.41	%	$	600 million	$	600 million	47 5	Oct. 1, 2042
3.60% Notes, Series CM 4	November 2013	January 2021	$	997.15	3.65	%	$	400 million	$	400 million	35 3	N/A
5.15% Notes, Series CN 4	November 2013	November 2043	$	995.00	5.18	%	$	400 million	$	400 million	50 5	May 26, 2043
3.20% Notes, Series CO 4	April 2014	April 2021	$	997.39	3.24	%	$	500 million	$	500 million	30 5	Mar. 5, 2021
4.85% Notes, Series CP 4	Multiple 6	April 2044	$	987.91 6	4.93	% 6	$	500 million 6	$	900 million 6	46 5	Oct. 5, 2043
3.75% Notes, Series CQ 4	September 2014	January 2025	$	997.75	3.78	%	$	800 million	$	800 million	38.5 5	Oct. 17, 2024
4.75% Notes, Series CR 4	September 2014	January 2045	$	992.91	4.80	%	$	400 million	$	400 million	51.5 5	July 17, 2044
1.50% Notes, Series CS 4	March 2015	March 2018	$	999.62	1.51	%	$	250 million	$	250 million	N/A 7	N/A
2.35% Notes, Series CT 4	March 2015	March 2022	$	997.31	2.39	%	$	1.0 billion	$	1.0 billion	35.5 5	Feb. 28, 2022
4.40% Notes, Series CU 4	March 2015	January 2046	$	999.72	4.40	%	$	500 million	$	500 million	60.5 5	July 29, 2045
3.75% Notes, Series CV 4	December 2015	March 2026	$	992.14	3.84	%	$	600 million	$	600 million	53.5 5	Dec. 10, 2025
2.80% U.S. Dollar Notes 4, 8	September 2016	February 2027	US$991.89		2.89	%	US$600 million		US$600 million		20 9	Nov. 16, 2026
3.70% U.S. Dollar Notes 4, 10	March 2017	September 2027	US$998.95		3.71	%	US$500 million		US$500 million		20 9	June 15, 2027
4.70% Notes, Series CW 4	March 2017	March 2048	$	990.65	4.76	%	$	325 million	$	325 million	58.5 5	Sept. 6, 2047

(1)

Interest is payable semi-annually.

(2)

The effective interest rate is that which the notes would yield to an initial debt holder if held to maturity.

(3)

The notes are redeemable at our option, in whole at any time, or in part from time to time, on not fewer than 30 and not more than 60 days’ prior notice. The redemption price is equal to the greater of (i) the present value of the notes discounted at the Government of Canada yield plus the redemption present value spread, or (ii) 100% of the principal amount thereof. In addition, accrued and unpaid interest, if any, will be paid to the date fixed for redemption.

(4)

This series of notes requires us to make an offer to repurchase the notes at a price equal to 101% of their principal amount plus accrued and unpaid interest to the date of repurchase upon the occurrence of a change in control triggering event, as defined in the supplemental trust indenture.

(5)

At any time prior to the respective maturity dates set out in the table, the notes are redeemable at our option, in whole at any time, or in part from time to time, on not fewer than 30 and not more than 60 days’ prior notice. The redemption price is equal to the greater of (i) the present value of the notes discounted at the Government of Canada yield plus the redemption present value spread calculated over the period to maturity, other than in the case of the Series CT and Series CU notes, where it is calculated over the period to the redemption present value spread cessation date, or (ii) 100% of the principal amount thereof. In addition, accrued and unpaid interest, if any, will be paid to the date fixed for redemption. On or after the respective redemption present value spread cessation dates set out in the table, the notes are redeemable at our option, in whole but not in part, on not fewer than 30 and not more than 60 days’ prior notice, at redemption prices equal to 100% of the principal amounts thereof.

(6)

$500 million of 4.85% Notes, Series CP were issued in April 2014 at an issue price of $998.74 and an effective interest rate of 4.86%. This series of notes was reopened in December 2015 and a further $400 million of notes were issued at an issue price of $974.38 and an effective interest rate of 5.02%.

(7)

The notes are not redeemable at our option, other than in the event of certain changes in tax laws.

(8)

We have entered into a foreign exchange derivative (a cross currency interest rate exchange agreement) which effectively converted the principal payments and interest obligations to Canadian dollar obligations with a fixed interest rate of 2.95% and an issued and outstanding amount of $792 million (reflecting a fixed exchange rate of $1.3205).

(9)

At any time prior to the respective maturity dates set out in the table, the notes are redeemable at our option, in whole at any time, or in part from time to time, on not fewer than 30 and not more than 60 days’ prior notice. The redemption price is equal to the greater of (i) the present value of the notes discounted at the U.S. Adjusted Treasury Rate plus the redemption present value spread calculated over the period to the redemption present value spread cessation date, or (ii) 100% of the principal amount thereof. In addition, accrued and unpaid interest, if any, will be paid to the date fixed for redemption. On or after the respective redemption present value spread cessation dates set out in the table, the notes are redeemable at our option, in whole but not in part, on not fewer than 30 and not more than 60 days’ prior notice, at redemption prices equal to 100% of the principal amounts thereof.

(10)

We have entered into a foreign exchange derivative (a cross currency interest rate exchange agreement) which effectively converted the principal payments and interest obligations to Canadian dollar obligations with a fixed interest rate of 3.41% and an issued and outstanding amount of $667 million (reflecting a fixed exchange rate of $1.3348).

(c)TELUS Corporation commercial paper

TELUS Corporation has an unsecured commercial paper program, which is backstopped by our $2.25 billion syndicated credit facility (see (d)) and is to be used for general corporate purposes, including capital expenditures and investments. This program enables us to issue commercial paper, subject to conditions related to debt ratings, up to a maximum aggregate amount at any one time of $1.4 billion (2016 — $1.4 billion). Foreign currency forward contracts are used to manage currency risk arising from issuing commercial paper denominated in U.S. dollars. Commercial paper debt is due within one year and is classified as a current portion of long-term debt, as the amounts are fully supported, and we expect that they will continue to be supported, by the revolving credit facility, which has no repayment requirements within the next year. As at December 31, 2017, we had $1,140 million of commercial paper outstanding, all of which was denominated in U.S. dollars (US$908 million), with an effective weighted average interest rate of 1.83%, maturing through April 2018.

(d)TELUS Corporation credit facility

As at December 31, 2017, TELUS Corporation had an unsecured revolving $2.25 billion bank credit facility, expiring on May 31, 2021, with a syndicate of financial institutions, which is to be used for general corporate purposes, including the backstopping of commercial paper.

TELUS Corporation’s credit facility bears interest at prime rate, U.S. Dollar Base Rate, a bankers’ acceptance rate or London interbank offered rate (LIBOR) (all such terms as used or defined in the credit facility), plus applicable margins. The credit facility contains customary representations, warranties and covenants, including two financial quarter-end ratio tests. These tests are that our net debt to operating cash flow ratio must not exceed 4.00:1.00 and our operating cash flow to interest expense ratio must not be less than 2.00:1.00, all as defined under the credit facility.

Continued access to TELUS Corporation’s credit facility is not contingent on TELUS Corporation maintaining a specific credit rating.

As at December 31 (millions)	2017		2016
Net available	$	1,110	$	1,637
Backstop of commercial paper	1,140		613

Gross available	$	2,250	$	2,250

We had $224 million of letters of credit outstanding as at December 31, 2017 (2016 — $210 million), issued under various uncommitted facilities; such letter of credit facilities are in addition to the ability to provide letters of credit pursuant to our committed bank credit facility.

(e)TELUS Communications Inc. debentures

The Series 3 and 5 Debentures were issued by a predecessor corporation of TELUS Communications Inc., BC TEL, under a Trust Indenture dated May 31, 1990. The Series B Debentures were issued by a predecessor corporation of TELUS Communications Inc., AGT Limited, under a Trust Indenture dated August 24, 1994, and a supplemental trust indenture dated September 22, 1995.

Principal face amount

Redemption present
value spread

Series 1

Issued

Maturity

Issue
price

Originally
issued

Outstanding at
financial
statement date

Basis points

10.65% Debentures, Series 3

June 1991

June 2021

998.00

175 million

N/A (non-redeemable)

9.65% Debentures, Series 5 2

April 1992

April 2022

972.00

150 million

249 million

N/A (non-redeemable)

8.80% Debentures, Series B

September 1995

September 2025

995.10

200 million

15 3

(1)

Interest is payable semi-annually.

(2)

Series 4 Debentures were exchangeable, at the holder’s option, effective on April 8 of any year during the four-year period from 1996 to 1999, for Series 5 Debentures; $99 million of Series 4 Debentures were exchanged for Series 5 Debentures.

(3)

At any time prior to the maturity date set out in the table, the debentures are redeemable at our option, in whole at any time, or in part from time to time, on not less than 30 days’ prior notice. The redemption price is equal to the greater of (i) the present value of the debentures discounted at the Government of Canada yield plus the redemption present value spread, or (ii) 100% of the principal amount thereof. In addition, accrued and unpaid interest, if any, will be paid to the date fixed for redemption.

The debentures became obligations of TELUS Communications Inc. pursuant to an amalgamation on January 1, 2001, are not secured by any mortgage, pledge or other charge and are governed by certain covenants, including a negative pledge and a limitation on issues of additional debt, subject to a debt to capitalization ratio and an interest coverage test. Effective June 12, 2009, TELUS Corporation guaranteed the payment of the debentures’ principal and interest.

(f)TELUS International (Cda) Inc. credit facility

As at December 31, 2017, TELUS International (Cda) Inc. had a bank credit facility, secured by its assets, expiring on December 20, 2022, (2016 — May 31, 2021), with a syndicate of financial institutions. The credit facility is comprised of a US$350 million (2016 — US$115 million) revolving component and an amortizing US$120 million (2016 — US$215 million) term loan component. The credit facility is non-recourse to TELUS Corporation. As at December 31, 2017, $346 million ($339 million net of unamortized issue costs) was outstanding, which was denominated in U.S. dollars (US$276 million), with a weighted average interest rate of 3.32%. Subsequent to December 31, 2017, an incremental $94 million (US$75 million) was drawn (see Note 18(c)).

As at December 31 (millions)	2017						2016
	Revolving component		Term loan component		Total		Revolving component		Term loan component		Total
Available	US$	193	US$	N/A	US$	193	US$	72	US$	N/A	US$	72
Outstanding		157		119		276		43		210		253

	US$	350	US$	119	US$	469	US$	115	US$	210	US$	325

TELUS International (Cda) Inc.’s credit facility bears interest at prime rate, U.S. Dollar Base Rate, a bankers’ acceptance rate or London interbank offered rate (LIBOR) (all such terms as used or defined in the credit facility), plus applicable margins. The credit facility contains customary representations, warranties and covenants, including two financial quarter-end ratio tests. These tests are that TELUS International (Cda) Inc.’s net debt to operating cash flow ratio generally must not exceed 3.25:1.00 and its operating cash flow to debt service (interest and scheduled principal repayment) ratio must not be less than 1.50:1.00, all as defined in the credit facility.

The term loan is subject to an amortization schedule which requires that 5% of the principal advanced be repaid each year of the term of the agreement, with the balance due at maturity.

(g)Long-term debt maturities

Anticipated requirements to meet long-term debt repayments, calculated upon such long-term debts owing as at December 31, 2017, for each of the next five fiscal years are as follows:

Long-term debt denominated in	Canadian dollars		U.S. dollars
					Derivative liability
Years ending December 31 (millions)	Debt		Debt		(Receive) 1			Pay		Total		Total
2018	$	250	$	1,147	$	(1,144	)	$	1,160	$	1,163	$	1,413
2019	1,000		8		—			—		8		1,008
2020	1,000		8		—			—		8		1,008
2021	1,075		8		—			—		8		1,083
2022	1,249		316		—			—		316		1,565
Thereafter	6,325		1,380		(1,380		)	1,460		1,460		7,785

Future cash outflows in respect of long-term debt principal repayments	10,899		2,867		(2,524		)	2,620		2,963		13,862
Future cash outflows in respect of associated interest and like carrying costs 2	5,506		490		(431		)	449		508		6,014

Undiscounted contractual maturities (Note 4(c))	$	16,405	$	3,357	$	(2,955	)	$	3,069	$	3,471	$	19,876

(1)

Where applicable, principal-related cash flows reflect foreign exchange rates at December 31, 2017.

(2)

Future cash outflows in respect of associated interest and like carrying costs for commercial paper and amounts drawn under our credit facilities (if any) have been calculated based upon the rates in effect at December 31, 2017.

Fact Table
Network	12701 - Disclosure - other long-term liabilities (http://www.telus.com/role/DisclosureOtherLongTermLiabilities)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfOtherLongTermLiabilitiesTextBlock (label)

27other long-term liabilities

As at December 31 (millions)	Note	2017		2016
Pension and other post-employment benefit liabilities	15(a)	$	537	$	484
Deferred revenues		81		72
Restricted stock unit and deferred share unit liabilities		68		62
Derivative liabilities		76		21
Other		67		73

		829		712
Deferred customer activation and connection fees		18		24

		$	847	$	736

Fact Table
Network	12801 - Disclosure - Common Share capital (http://www.telus.com/role/DisclosureCommonShareCapital)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory (label)

28Common Share capital

(a)General

Our authorized share capital is as follows:

As at December 31	2017	2016
First Preferred Shares	1 billion	1 billion
Second Preferred Shares	1 billion	1 billion
Common Shares	2 billion	2 billion

Only holders of Common Shares may vote at our general meetings, with each holder of Common Shares entitled to one vote per Common Share held at all such meetings so long as not less than 66-2/3% of the issued and outstanding Common Shares are owned by Canadians. With respect to priority in payment of dividends and in the distribution of assets in the event of our liquidation, dissolution or winding-up, whether voluntary or involuntary, or any other distribution of our assets among our shareholders for the purpose of winding up our affairs, preferences are as follows: First Preferred Shares; Second Preferred Shares; and finally Common Shares.

As at December 31, 2017, approximately 48 million Common Shares were reserved for issuance, from Treasury, under a share option plan (see Note 14(d)).

(b)Purchase of Common Shares for cancellation pursuant to normal course issuer bid

As referred to in Note 3, we may purchase a portion of our Common Shares for cancellation pursuant to normal course issuer bids in order to maintain or adjust our capital structure. During the year ended December 31, 2016, we purchased a number of our Common Shares for cancellation, through the facilities of the Toronto Stock Exchange, the New York Stock Exchange and/or alternative trading platforms or otherwise as may be permitted by applicable securities laws and regulations, including privately negotiated block purchases, as set out in the following table; there was no corresponding activity during the year ended December 31, 2017.

	2016
Year ended December 31 (millions except footnote amounts)	Common Shares	Cost
Normal course issuer bid period:
September 15, 2015 — September 14, 2016	3	$	130
September 30, 2016 — September 29, 2017 1	1	35

Total excluding employee benefit plan trust transactions	4	165
Employee benefit plan trust transactions	—	4

	4	$	169

(1)

In November 2017, we received approval for a normal course issuer bid to purchase and cancel up to 8 million of our Common Shares (up to a maximum amount of $250 million) from November 13, 2017, to November 12, 2018. Additionally, we may enter into an automatic share purchase plan with a broker for the purpose of permitting us to purchase our Common Shares under the normal course issuer bid at times when we would not be permitted to trade in our own Common Shares during internal blackout periods, including during regularly scheduled quarterly blackout periods. Such purchases are determined by the broker in its sole discretion based on parameters we have established. We record a liability and charge share capital and retained earnings for purchases that may occur during such blackout periods based upon the parameters of the normal course issuer bid as at the statement of financial position date.

The excess of the purchase price over the average stated value of Common Shares purchased for cancellation is charged to retained earnings. We cease to consider the Common Shares to be outstanding on the date of our purchase of the Common Shares, although the actual cancellation of the Common Shares by the transfer agent and registrar occurs on a timely basis on a date shortly thereafter.

Fact Table
Network	12901 - Disclosure - contingent liabilities (http://www.telus.com/role/DisclosureContingentLiabilities)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DisclosureOfContingentLiabilitiesExplanatory (label)	29contingent liabilities (a)Claims and lawsuits General A number of claims and lawsuits (including class actions and intellectual property infringement claims) seeking damages and other relief are pending against us and, in some cases, numerous other wireless carriers and telecommunications service providers. As well, we have received notice of, or are aware of, certain possible claims (including intellectual property infringement claims) against us. It is not currently possible for us to predict the outcome of such claims, possible claims and lawsuits due to various factors, including: the preliminary nature of some claims; uncertain damage theories and demands; an incomplete factual record; uncertainty concerning legal theories and procedures and their resolution by the courts, at both the trial and the appeal levels; and the unpredictable nature of opposing parties and their demands. However, subject to the foregoing limitations, management is of the opinion, based upon legal assessments and information presently available, that it is unlikely that any liability, to the extent not provided for through insurance or otherwise, would have a material effect on our financial position and the results of our operations, including cash flows, with the exception of the items enumerated following. Certified class actions Certified class actions against us include the following: System access fee class actions In 2004, a class action was brought in Saskatchewan against a number of past and present wireless service providers, including us, which alleged breach of contract, misrepresentation, unjust enrichment and violation of competition, trade practices and consumer protection legislation across Canada in connection with the collection of system access fees. In September 2007, a national opt-in class was certified by the Saskatchewan Court of Queen’s Bench in relation to the unjust enrichment claim only; all appeals of this certification decision have now been exhausted. In February 2008, the Saskatchewan Court of Queen’s Bench granted an order amending the certification order so as to exclude from the class of plaintiffs any customer bound by an arbitration clause with us. All appeals of this decision have now been exhausted. In addition to the 2004 class action brought in Saskatchewan, fourteen additional class actions were brought against us and other wireless service providers in the period 2004 to date in connection with the collection of system access fees in nine provinces. None of these additional fourteen class actions has ever been certified, and all have now been dismissed, discontinued or stayed. Per minute billing class action In 2008, a class action was brought in Ontario against us alleging breach of contract, breach of the Ontario Consumer Protection Act, breach of the Competition Act and unjust enrichment, in connection with our practice of “rounding up” wireless airtime to the nearest minute and charging for the full minute. The action sought certification of a national class. In November 2014, an Ontario class only was certified by the Ontario Superior Court of Justice in relation to the breach of contract, breach of the Consumer Protection Act and unjust enrichment claims; all appeals of the certification decision have now been exhausted. At the same time, the Ontario Superior Court of Justice declined to stay the claims of our business customers notwithstanding an arbitration clause in our customer service agreements with those customers. This latter decision was appealed and on May 31, 2017, the Ontario Court of Appeal dismissed our appeal. We have sought leave to appeal this decision to the Supreme Court of Canada. Unilateral rate amendments class actions In 2012, a class action was brought against us in Quebec alleging that we improperly unilaterally amended customer contracts to increase various wireless rates for optional services, contrary to the Quebec Consumer Protection Act and the Civil Code of Quebec. On June 13, 2013, the Superior Court of Quebec authorized this matter as a class action. This class action follows on a non-material 2008 class action brought in Quebec alleging that we improperly unilaterally amended customer contracts to charge for incoming SMS messages. On April 8, 2014, judgment was granted in part against us in the 2008 class action. We had appealed that judgment, but have now settled both the 2008 and 2012 class actions. This settlement received court approval in June 2016, is being implemented and has been fully accounted for in our financial statements. Call set-up time class actions In 2005, a class action was brought against us in British Columbia alleging that we have engaged in deceptive trade practices in charging for incoming calls from the moment the caller connects to the network, and not from the moment the incoming call is connected to the recipient. In 2011, the Supreme Court of Canada upheld a stay of all of the causes of action advanced by the plaintiff in this class action, with one exception, based on the arbitration clause that was included in our customer service agreements. The sole exception was the cause of action based on deceptive or unconscionable practices under the British Columbia Business Practices and Consumer Protection Act, which the Supreme Court of Canada declined to stay. In January 2016, the British Columbia Supreme Court certified this class action in relation to the claim under the Business Practices and Consumer Protection Act. The class is limited to residents of British Columbia who contracted with us for wireless services in the period from January 21, 1999, to April 2010. We have appealed the certification decision and the appeal hearing is expected to occur in March 2018. A companion class action was brought against us in Alberta at the same time as the British Columbia class action. The Alberta class action duplicates the allegations in the British Columbia action, but has not proceeded to date and is not certified. Uncertified class actions Uncertified class actions against us include: 9-1-1 class actions In 2008, a class action was brought in Saskatchewan against us and other Canadian telecommunications carriers alleging that, among other matters, we failed to provide proper notice of 9-1-1 charges to the public, have been deceitfully passing them off as government charges, and have charged 9-1-1 fees to customers who reside in areas where 9-1-1 service is not available. The plaintiffs advance causes of action in breach of contract, misrepresentation and false advertising and seek certification of a national class. A virtually identical class action was filed in Alberta at the same time, but the Alberta Court of Queen’s Bench declared that class action expired against us as of 2009. No steps were taken in this proceeding in 2017. Electromagnetic field radiation class actions In 2013, a class action was brought in British Columbia against us, other telecommunications carriers, and cellular telephone manufacturers alleging that prolonged usage of cellular telephones causes adverse health effects. The British Columbia class action alleges: strict liability; negligence; failure to warn; breach of warranty; breach of competition, consumer protection and trade practices legislation; negligent misrepresentation; breach of a duty not to market the products in question; and waiver of tort. Certification of a national class is sought, but the action has not proceeded to date and no steps were taken in 2016 or 2017. In 2015, a class action was brought in Quebec against us, other telecommunications carriers, and various other defendants alleging that electromagnetic field radiation causes adverse health effects, contravenes the Quebec Environmental Quality Act, creates a nuisance, and constitutes an abuse of right pursuant to the Quebec Civil Code. This action has not yet proceeded to an authorization hearing. Public Mobile class actions In 2014, class actions were brought against us in Quebec and Ontario on behalf of Public Mobile’s customers, alleging that changes to the technology, services and rate plans made by us contravene our statutory and common law obligations. In particular, the Quebec action alleges that our actions constitute a breach of the Quebec Consumer Protection Act, the Quebec Civil Code, and the Ontario Consumer Protection Act. It has not yet proceeded to an authorization hearing. The Ontario class action alleges negligence, breach of express and implied warranty, breach of the Competition Act, unjust enrichment, and waiver of tort. No steps have been taken in this proceeding since it was filed and served. Promotional pricing class action In 2016, a class action was brought in Quebec against us, other telecommunications carriers, and various other defendants alleging that we violated the Quebec Consumer Protection Act by enticing Quebec consumer customers to contract with us by providing goods or services to them at a reduced price, or free as a trial, for a fixed period and, at the end of the fixed period, charging them the regular price if they did not take steps to either renegotiate or cancel their contract with us. The plaintiff has agreed to discontinue this claim against us, and the court authorized the discontinuation of the class action against us on July 13, 2017. Handset subsidy class action In 2016, a class action was brought in Quebec against us and other telecommunications carriers alleging that we breached the Quebec Consumer Protection Act and the Civil Code of Quebec by making false or misleading representations relating to the handset subsidy provided to our wireless customers, and by charging our wireless customers inflated rate plan prices and termination fees higher than those permitted under the Act. This action has not yet proceeded to an authorization hearing. Intellectual property infringement claims Claims and possible claims received by us include: 4G LTE network patent infringement claim A patent infringement claim was filed in Ontario in 2016 alleging that communications between devices, including cellular telephones, and base stations on our 4G LTE network infringe three third-party patents. The trial for this matter has been scheduled to commence on October 28, 2019. Summary We believe that we have good defences to the above matters. Should the ultimate resolution of these matters differ from management’s assessments and assumptions, a material adjustment to our financial position and the results of our operations, including cash flows, could result. Management’s assessments and assumptions include that reliable estimates of any such exposure cannot be made considering the continued uncertainty about: the nature of the damages that may be sought by the plaintiffs; the causes of action that are being, or may ultimately be, pursued; and, in the case of the uncertified class actions, the causes of action that may ultimately be certified. (b)Indemnification obligations In the normal course of operations, we provide indemnification in conjunction with certain transactions. The terms of these indemnification obligations range in duration. These indemnifications would require us to compensate the indemnified parties for costs incurred as a result of failure to comply with contractual obligations, or litigation claims or statutory sanctions, or damages that may be suffered by an indemnified party. In some cases, there is no maximum limit on these indemnification obligations. The overall maximum amount of an indemnification obligation will depend on future events and conditions and therefore cannot be reasonably estimated. Where appropriate, an indemnification obligation is recorded as a liability. Other than obligations recorded as liabilities at the time of the related transactions, historically we have not made significant payments under these indemnifications. See Note 21(d) for details regarding our guarantees to the real estate joint ventures. As at December 31, 2017, we had no liability recorded in respect of our indemnification obligations. (c)Concentration of labour In 2015, we commenced collective bargaining with the Telecommunications Workers Union, United Steel Workers Local Union 1944 to renew the collective agreement that expired on December 31, 2015; the expired contract covered approximately 40% of our Canadian workforce as at December 31, 2015. On October 3, 2016, the Telecommunications Workers Union, United Steel Workers Local Union 1944 and ourselves announced that the two parties had reached a tentative five-year collective agreement which would be subject to ratification by members of the Telecommunications Workers Union, United Steel Workers Local Union 1944. On November 23, 2016, the Telecommunications Workers Union, United Steel Workers Local Union 1944 announced that its members had voted to accept the October 3, 2016, tentative agreement. The terms and conditions of the new collective agreement are effective from November 27, 2016, to December 31, 2021, and covered approximately 37% of our Canadian workforce as at December 31, 2016. In December 2016, a new collective agreement between the Syndicat des agents de maîtrise de TELUS and ourselves was ratified by a majority of its members. This collective agreement took effect on April 1, 2017, and will expire on March 31, 2022. A new collective agreement between the Syndicat québécois des employés de TELUS and ourselves was also ratified in December 2016. The new agreement is effective from January 1, 2018 to December 31, 2022. The Syndicat québécois des employés de TELUS collective agreement in effect at the time of ratification remained in effect until its expiry on December 31, 2017.

Fact Table
Network	13001 - Disclosure - related party transactions (http://www.telus.com/role/DisclosureRelatedPartyTransactions)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfRelatedPartyExplanatory (label)

30related party transactions

(a)Transactions with key management personnel

Our key management personnel have authority and responsibility for overseeing, planning, directing and controlling our activities and consist of our Board of Directors and our Executive Leadership Team.

Total compensation expense for key management personnel, and the composition thereof, is as follows:

Years ended December 31 (millions)	2017		2016
Short-term benefits	$	12	$	12
Post-employment pension 1 and other benefits	4		7
Share-based compensation 2	34		35

	$	50	$	54

(1)

Our Executive Leadership Team members are either members of our Pension Plan for Management and Professional Employees of TELUS Corporation and non-registered, non-contributory supplementary defined benefit pension plans, or members of one of our defined contribution pension plans.

(2)

For the year ended December 31, 2017, share-based compensation expense was net of $4 (2016 — $2) of the effects of derivatives used to manage share-based compensation costs (Note 14(b)). For the year ended December 31, 2017, share-based compensation expense (recovery) of $(7) (2016 — $4) was included in restructuring costs (Note 16).

As disclosed in Note 14, we made initial awards of share-based compensation in 2017 and 2016, including, as set out in the following table, to our key management personnel. As most of these awards are cliff-vesting or graded-vesting and have multi-year requisite service periods, the expense will be recognized ratably over a period of years and thus only a portion of the 2017 and 2016 initial awards are included in the amounts in the table above.

Years ended December 31	2017					2016
($ in millions)	Number of restricted stock units	Notional value 1		Grant-date fair value 1		Number of restricted stock units	Notional value 1		Grant-date fair value 1
Awarded in period	686,595	$	30	$	30	585,759	$	23	$	15

(1)

Notional value is determined by multiplying the Common Share price at the time of award by the number of units awarded. The grant-date fair value differs from the notional value because the fair values of some awards have been determined using a Monte Carlo simulation (see Note 14(b)).

As at December 31, 2017, no share options outstanding were held by key management personnel (including retirees). During the year ended December 31, 2017, key management personnel (including retirees) exercised 17,716 share options (2016 — 169,522 share options) that had an intrinsic value of less than $1 million (2016 — $4 million) at the time of exercise, reflecting a weighted average price at the date of exercise of $44.84 (2016 — $42.47).

The liability amounts accrued for share-based compensation awards to key management personnel are as follows:

As at December 31 (millions)	2017		2016
Restricted stock units	$	40	$	25
Deferred share units 1	24		32

	$	64	$	57

(1)

Our Directors’ Deferred Share Unit Plan provides that, in addition to his or her annual equity grant of deferred share units, a director may elect to receive his or her annual retainer and meeting fees in deferred share units, Common Shares or cash. Deferred share units entitle directors to a specified number of, or a cash payment based on the value of, our Common Shares. Deferred share units are paid out when a director ceases to be a director, for any reason, at a time elected by the director in accordance with the Directors’ Deferred Share Unit Plan; during the year ended December 31, 2017, $14 (2016 — $4) was paid out.

Employment agreements with members of the Executive Leadership Team typically provide for severance payments if an executive’s employment is terminated without cause: generally 18—24 months of base salary, benefits and accrual of pension service in lieu of notice, and 50% of base salary in lieu of an annual cash bonus. In the event of a change in control, Executive Leadership Team members are not entitled to treatment any different than that given to our other employees with respect to non-vested share-based compensation.

(b)Transactions with defined benefit pension plans

During the year ended December 31, 2017, we provided management and administrative services to our defined benefit pension plans; the charges for these services were on a cost recovery basis and amounted to $6 million (2016 — $6 million).

(c)Transactions with real estate joint ventures

During the years ended December 31, 2017 and 2016, we had transactions with the real estate joint ventures, which are related parties, as set out in Note 21.

Fact Table
Network	13101 - Disclosure - additional statement of cash flow information (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformation)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfCashFlowStatementExplanatory (label)

31additional statement of cash flow information

(a)Statements of cash flows — operating activities and investing activities

Years ended December 31 (millions)	Note	2017			2016
Net change in non-cash operating working capital
Accounts receivable		$	(70	)	$	(45	)
Inventories		(60		)	42
Prepaid expenses		(27		)	(20		)
Accounts payable and accrued liabilities		126			126
Income and other taxes receivable and payable, net		(90		)	(128		)
Advance billings and customer deposits		38			(28		)
Provisions		(59		)	(18		)

		$	(142	)	$	(71	)

Cash payments for capital assets, excluding spectrum licences
Capital asset additions, excluding spectrum licences
Gross capital expenditures
Property, plant and equipment	17	$	(2,486	)	$	(2,358	)
Intangible assets	18	(617		)	(629		)

		(3,103		)	(2,987		)
Additions arising from non-monetary transactions		9			19

Capital expenditures		(3,094		)	(2,968		)
Asset retirement obligations netted (included) in additions		(7		)	40

		(3,101		)	(2,928		)
Other non-cash items included above
Change in associated non-cash investing working capital		(27		)	231
Non-cash change in asset retirement obligation		47			(55		)

		20			176

		$	(3,081	)	$	(2,752	)

(b)Changes in liabilities arising from financing activities

				Year ended December 31, 2016														Year ended December 31, 2017
				Statement of cash flows						Non-cash changes								Statement of cash flows						Non-cash changes
(millions)	As at January 1, 2016			Issued or received			Redemptions, repayments or payments			Foreign exchange movement (Note 4(i))			Other			As at December 31, 2016		Issued or received			Redemptions, repayments or payments			Foreign exchange movement (Note 4(i))			Other			As at December 31, 2017
Dividends payable to holders of Common Shares	$	263		$	—		$	(1,070	)	$	—		$	1,091		$	284	$	—		$	(1,152	)	$	—		$	1,167		$	299
Dividends reinvested in shares from Treasury	—			—			—			—			—			—		—			70			—			(70		)	—

	$	263		$	—		$	(1,070	)	$	—		$	1,091		$	284	$	—		$	(1,082	)	$	—		$	1,097		$	299

Purchase of Common Shares for cancellation 1	$	10		$	—		$	(179	)	$	—		$	169		$	—	$	—		$	—		$	—		$	—		$	—

Short-term borrowings	$	100		$	3		$	(3	)	$	—		$	—		$	100	$	—		$	—		$	—		$	—		$	100

Long-term debt
TELUS Corporation notes	$	11,164		$	785		$	(600	)	$	19		$	(1	)	$	11,367	$	990		$	(700	)	$	(91	)	$	(5	)	$	11,561
TELUS Corporation commercial paper	256			4,568			(4,181		)	(30		)	—			613		5,295			(4,710		)	(58		)	—			1,140
TELUS Communications Inc. debentures	618			—			—			—			1			619		—			—			—			1			620
TELUS International (Cda) Inc. credit facility	—			373			(42		)	9			(8		)	332		82			(56		)	(20		)	1			339
Derivatives used to manage currency risk arising from U.S. dollar-denominated long-term debt — liability (asset)	(14		)	4,181			(4,201		)	11			43			20		4,710			(4,746		)	149			(40		)	93

	12,024			9,907			(9,024		)	9			35			12,951		11,077			(10,212		)	(20		)	(43		)	13,753
To eliminate effect of gross settlement of derivatives used to manage currency risk arising from U.S. dollar-denominated long-term debt	—			(4,181		)	4,181			—			—			—		(4,710		)	4,710			—			—			—

	$	12,024		$	5,726		$	(4,843	)	$	9		$	35		$	12,951	$	6,367		$	(5,502	)	$	(20	)	$	(43	)	$	13,753

Issue of shares by subsidiary to non-controlling interest
Gross proceeds on share issuance				$	302		$	—		$	—		$	(302	)	$	—	$	—		$	—		$	—		$	—		$	—
Transaction costs				—			(8		)	—			12			4		—			(1		)	—			—			3
Income taxes charged directly to contributed surplus 2				—			—			—			47			47		—			—			—			(3		)	44

				302			(8		)	—			(243		)	51		—			(1		)	—			(3		)	47
To eliminate effect of gross settlement of transaction costs				(8		)	8			—			—			—		—			—			—			—			—

				$	294		$	—		$	—		$	(243	)	$	51	$	—		$	(1	)	$	—		$	(3	)	$	47

(1)

Normal course issuer bid transactions, including employee benefit plan trust transactions (see Note 28(b)).

(2)

Income taxes charged directly to contributed surplus were comprised of a current income tax charge of $(3) (2016 — $50) and a deferred income tax recovery of $NIL (2016 — $3).

Fact Table
Network	20102 - Disclosure - summary of significant accounting policies (Policies) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForCustomerAcquisitionCostsExplanatory (label)

(g)Cost of acquisition and advertising costs

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory (label)

(i)Depreciation, amortization and impairment

Depreciation and amortization

Estimated useful lives for the majority of our property, plant and equipment subject to depreciation are as follows:

		Estimated useful lives 1
Network assets
Outside plant		17 to 40 years
Inside plant		4 to 25 years
Wireless site equipment		5 to 7 years
Balance of depreciable property, plant and equipment		3 to 40 years

Estimated useful lives for the majority of our intangible assets subject to amortization are as follows:

		Estimated useful lives
Wireline subscriber base		25 years
Customer contracts, related customer relationships and leasehold interests		4 to 10 years
Software		2 to 10 years
Access to rights-of-way and other		5 to 30 years

Impairment — general

Impairment — property, plant and equipment; intangible assets subject to amortization

Impairment — intangible assets with indefinite lives; goodwill

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory (label)

(m)Employee future benefit plans

Defined benefit plans

Defined contribution plans

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory (label)

(c)Financial instruments — recognition and measurement

In respect of the recognition and measurement of financial instruments, we have adopted the following policies:

	Accounting classification
Financial instrument	Fair value through net income 1, 2	Loans and receivables	Available- for-sale 3	Other financial liabilities	Part of a cash flow hedging relationship 3
Measured at amortized cost
Accounts receivable		X **
Construction credit facilities advances to real estate joint ventures		X **
Short-term obligations				X **
Accounts payable				X **
Provisions				X **
Long-term debt				X **
Measured at fair value
Cash and temporary investments	X *
Long-term investments (not subject to significant influence) 4			X ***
Foreign exchange derivatives	X *				X
Share-based compensation derivatives	X *				X


*	Will be classified as fair value through net income upon application of IFRS 9, Financial Instruments, as discussed further in Note 2(b).
**	Will be classified as amortized cost upon application of IFRS 9, Financial Instruments, as discussed further in Note 2(b).
***	On an investment-by-investment basis, will be classified as either fair value through net income or fair value through other comprehensive income upon application of IFRS 9, Financial Instruments, as discussed further in Note 2(b).
(1)	Classification includes financial instruments held for trading. Certain qualifying financial instruments that are not required to be classified as held for trading may be classified as held for trading if we so choose.
(2)	Unrealized changes in the fair values of financial instruments are included in net income.
(3)	Unrealized changes in the fair values of financial instruments classified as available-for-sale, or the effective portion of unrealized changes in the fair values of financial instruments held for hedging, are included in other comprehensive income.
(4)	Long-term investments over which we do not have significant influence are classified as available-for-sale. In respect of investments in securities for which the fair values can be reliably measured, we determine the classification on an investment-by-investment basis at the time of initial recognition.

Derivatives that are not part of a documented cash flow hedging relationship are accounted for as held for trading and thus are measured at fair value through net income.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory (label)

(j)Translation of foreign currencies

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForGovernmentGrants (label)

(f)Government assistance

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForHedgingExplanatory (label)

(d)Hedge accounting

General

Hedge accounting

Hedging assets and liabilities

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory (label)

(k)Income and other taxes

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory (label)

(r)Leases

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories (label)

(p)Inventories

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory (label)

(q)Property, plant and equipment; intangible assets

General

Asset retirement obligations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue (label)

(e)Revenue recognition

General

Lease accounting is applied to an accounting unit if it conveys to a customer the right to use a specific asset but does not convey the risks and/or benefits of ownership.

Our revenues are recorded net of any value-added and/or sales taxes billed to the customer concurrent with a revenue-generating transaction.

Voice and data

Other and wireless equipment

Non-high cost serving area deferral account

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory (label)

(h)Research and development

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory (label)

(l)Share-based compensation

General

Restricted stock units

Share option awards

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory (label)

(o)Sales of trade receivables

Sales of trade receivables in securitization transactions are recognized as collateralized short-term borrowings and thus do not result in our de-recognition of the trade receivables sold.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory (label)

(b)Use of estimates and judgments

Estimates

Examples of the significant estimates and assumptions that we make, and their relative significance and degree of difficulty, are set out in the graphic at right.

Significant Estimates and Assumptions

Judgments

Examples of our significant judgments, apart from those involving estimation, include the following:

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfBasisOfConsolidationExplanatory (label)

(a)Consolidation

Our financing arrangements and those of our wholly-owned subsidiaries do not impose restrictions on inter-corporate dividends.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfSignificantJudgementsAndAssumptionsMadeInRelationToInterestsInOtherEntitiesExplanatory (label)

(s)Investments

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DescriptionOfAccountingPolicyForCashAndTemporaryInvestmentsNetExplanatoryPolicyTextBlock (label)

(n)Cash and temporary investments, net

Fact Table
Network	30103 - Disclosure - summary of significant accounting policies (Tables) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDepreciationAndAmortisationExpenseExplanatory (label)

		Estimated useful lives 1
Network assets
Outside plant		17 to 40 years
Inside plant		4 to 25 years
Wireless site equipment		5 to 7 years
Balance of depreciable property, plant and equipment		3 to 40 years

		Estimated useful lives
Wireline subscriber base		25 years
Customer contracts, related customer relationships and leasehold interests		4 to 10 years
Software		2 to 10 years
Access to rights-of-way and other		5 to 30 years

Fact Table
Network	30203 - Disclosure - accounting policy developments (Tables) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfImpactOfIfrs15ApplicationOnConsolidatedStatementOfCashFlowsTableTextBlock (label)

Year ended December 31, 2017 (billions)	As currently reported			IFRS 15 effects			Pro forma
OPERATING ACTIVITIES
Net income	$	1.5		$	0.1		$	1.6
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	2.2			—			2.2
Deferred income taxes	0.4			*			0.4
Net employee defined benefit plans expense	0.1			—			0.1
Employer contributions to employee defined benefit plans	(0.1		)	—			(0.1		)
Other	(0.1		)	*			(0.1		)
Net change in non-cash operating working capital	(0.1		)	(0.1		)	(0.2		)

Cash provided by operating activities	$	3.9		$	—		$	3.9

*Amounts less than $0.1 billion.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfImpactOfIfrs15ApplicationOnConsolidatedStatementsOfFinancialPositionTableTextBlock (label)

	December 31, 2017							January 1, 2017
As at (billions)	As currently reported		IFRS 15 effects			Pro forma		Excluding effects of IFRS 15		IFRS 15 effects			Pro forma
ASSETS
Current assets
Cash and temporary investments, net	$	0.5	$	—		$	0.5	$	0.4	$	—		$	0.4
Accounts receivable	1.6		*			1.6		1.5		*			1.5
Income and other taxes receivable	0.1		—			0.1		—		—			—
Inventories	0.4		*			0.4		0.3		*			0.3
Contract assets **	—		0.8			0.8		—		0.7			0.7
Prepaid expenses	0.3		0.2			0.5		0.2		0.2			0.4

	2.9		1.0			3.9		2.4		0.9			3.3

Non-current assets
Property, plant and equipment, net	11.4		—			11.4		10.5		—			10.5
Intangible assets, net	10.6		—			10.6		10.4		—			10.4
Goodwill, net	4.2		—			4.2		3.8		—			3.8
Contract assets **	—		0.4			0.4		—		0.3			0.3
Other long-term assets	0.4		0.1			0.5		0.6		0.1			0.7

	26.6		0.5			27.1		25.3		0.4			25.7

	$	29.5	$	1.5		$	31.0	$	27.7	$	1.3		$	29.0

LIABILITIES AND OWNERS’ EQUITY
Current liabilities
Short-term borrowings	$	0.1	$	—		$	0.1	$	0.1	$	—		$	0.1
Accounts payable, accrued liabilities and other	2.4		—			2.4		2.4		—			2.4
Dividends payable	0.3		—			0.3		0.3		—			0.3
Advance billings and customer deposits	0.8		(0.1		)	0.7		0.8		(0.2		)	0.6
Provisions	0.1		—			0.1		0.1		—			0.1
Current maturities of long-term debt	1.4		—			1.4		1.3		—			1.3

	5.1		(0.1		)	5.0		5.0		(0.2		)	4.8

Non-current liabilities
Provisions	0.5		—			0.5		0.4		—			0.4
Long-term debt	12.3		—			12.3		11.6		—			11.6
Other long-term liabilities	0.8		—			0.8		0.7		—			0.7
Deferred income taxes	2.5		0.4			2.9		2.1		0.4			2.5

	16.1		0.4			16.5		14.8		0.4			15.2

Liabilities	21.2		0.3			21.5		19.8		0.2			20.0
Owners’ equity	8.3		1.2			9.5		7.9		1.1			9.0

	$	29.5	$	1.5		$	31.0	$	27.7	$	1.3		$	29.0

*Amounts less than $0.1 billion.

**Will be measured at and classified as amortized cost upon application of IFRS 9, Financial Instruments, as discussed further in (a).

	Amount of IFRS 15 effects (increase (decrease) in billions)
	Allocation of transaction price (affecting timing of revenue recognition)
							Costs incurred to obtain or fulfill a contract with a customer
											Total
As at	Dec. 31, 2017			Jan. 1, 2017			Dec. 31, 2017		Jan. 1, 2017		Dec. 31, 2017			Jan. 1, 2017
Current assets
Accounts receivable	$	*		$	*		$	—	$	—	$	*		$	*
Inventories	$	*		$	*		$	—	$	—	$	*		$	*
Contract assets, net	$	0.8		$	0.7		$	—	$	—	$	0.8		$	0.7
Prepaid expenses and other	$	—		$	—		$	0.2	$	0.2	$	0.2		$	0.2
Non-current assets
Contract assets, net	$	0.4		$	0.3		$	—	$	—	$	0.4		$	0.3
Other long-term assets	$	—		$	—		$	0.1	$	0.1	$	0.1		$	0.1
Advance billings and customer deposits	$	(0.1	)	$	(0.2	)	$	—	$	—	$	(0.1	)	$	(0.2	)
Deferred income taxes	$	0.3		$	0.3		$	0.1	$	0.1	$	0.4		$	0.4
Common equity
Retained earnings	$	1.0		$	0.9		$	0.2	$	0.2	$	1.2		$	1.1

							Previously, costs incurred to obtain or fulfill a contract with a customer were expensed as incurred. The new standard requires that such costs be capitalized and subsequently recognized as an expense over the life of the contract on a rational, systematic basis consistent with the pattern of the transfer of goods or services to which the asset relates. Increases in the amount of costs capitalized in the period arising from contracts with customers entered into during the period are offset by the amortization of capitalized costs arising from contracts with customers entered into in previous periods.
	Previously, a “limitation cap” constrained the recognition of revenue in a multiple element arrangement to an amount that was not contingent upon either delivering additional items or meeting other specified performance conditions. The new standard requires that amounts contingently billable and collectible in the future are to be recognized currently as revenue to the extent we have currently satisfied our performance obligations to the customer; this is the new standard’s most significant effect on us. The difference between the revenue recognized currently and the amount currently collected/collectible is recognized on the statement of financial position as a contract asset. The contract asset recorded at January 1, 2017, represents revenues that will not have been reflected at any time in our periodic results of operations, but, absent the transition to the new standard, would have been; the effect of this “pulling forward” of revenues is expected to be somewhat muted by the composite ongoing inception, maturation and expiration of millions of multi-year contracts with our customers.

*Amounts less than $0.1 billion.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfImpactOfIfrs15ApplicationOnConsolidatedStatementsOfIncomeAndComprehensiveIncomeTableTextBlock (label)

Year ended December 31, 2017 (billions except per share amounts)	As currently reported			IFRS 15 effects			Pro forma
OPERATING REVENUES
Service	$	12.5		$	(1.2	)	$	11.3
Equipment	0.7			1.3			2.0

Revenues arising from contracts with customers	13.2			0.1			13.3
Other operating income	0.1			—			0.1

	13.3			0.1			13.4

OPERATING EXPENSES
Goods and services purchased	5.9			*			5.9
Employee benefits expense	2.6			*			2.6
Depreciation	1.6			—			1.6
Amortization of intangible assets	0.6			—			0.6

	10.7			*			10.7

OPERATING INCOME	2.6			0.1			2.7
Financing costs	0.6			—			0.6

INCOME BEFORE INCOME TAXES	2.0			0.1			2.1
Income taxes	0.5			*			0.5

NET INCOME	1.5			0.1			1.6
OTHER COMPREHENSIVE INCOME	(0.2		)	—			(0.2		)

COMPREHENSIVE INCOME	$	1.3		$	0.1		$	1.4

NET INCOME ATTRIBUTABLE TO:
Common Shares	$	1.5		$	0.1		$	1.6
Non-controlling interests	*			—			*

	$	1.5		$	0.1		$	1.6

COMPREHENSIVE INCOME ATTRIBUTABLE TO:
Common Shares	$	1.3		$	0.1		$	1.4
Non-controlling interests	*			—			*

	$	1.3		$	0.1		$	1.4

NET INCOME PER COMMON SHARE
Basic	$	2.46		$	0.15		$	2.61
Diluted	$	2.46		$	0.15		$	2.61

*Amounts less than $0.1 billion.

	Amount of IFRS 15 effects (increase (decrease) in billions except per share amounts)
	Allocation of transaction price (affecting timing of revenue recognition)
				Costs incurred to obtain or fulfill a contract with a customer
Year ended December 31, 2017						Total
Operating revenues
Service	$	(1.2	)	$	—	$	(1.2	)
Equipment	$	1.3		$	—	$	1.3
Goods and services purchased	$	*		$	*	$	*
Employee benefits expense	$	—		$	*	$	*
Income taxes	$	*		$	*	$	*
Net income attributable to:
Common Shares	$	0.1		$	*	$	0.1
Net income per Common Share
Basic	$	0.11		$	0.04	$	0.15
Diluted	$	0.11		$	0.04	$	0.15

				Previously, costs incurred to obtain or fulfill a contract with a customer were expensed as incurred. The new standard requires that such costs be capitalized and subsequently recognized as an expense over the life of the contract on a rational, systematic basis consistent with the pattern of the transfer of goods or services to which the asset relates. This has the effect of reducing the costs recognized in the period arising from contracts with customers entered into during the period, offset by the amortization of capitalized costs arising from contracts with customers entered into in previous periods.
	Previously, a “limitation cap” constrained the recognition of revenue in a multiple element arrangement to an amount that was not contingent upon either delivering additional items or meeting other specified performance conditions. The new standard requires that amounts contingently billable and collectible in the future are to be recognized currently as revenue to the extent we have currently satisfied our performance obligations to the customer; this is the new standard’s most significant effect on us. For a contract with a customer, this has the effect of allocating more of the consideration to equipment revenue, which is recognized at the inception of the contract, and less to future service revenue.

*Amounts less than $0.1 billion.

Fact Table
Network	30303 - Disclosure - capital structure financial policies (Tables) (http://www.telus.com/role/DisclosureCapitalStructureFinancialPoliciesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDividendPayoutRatioExplanatory (label)

For the 12-month periods ended December 31 ($ in millions)	Objective	2017		2016
Dividend payout ratio	65%–75% 1	80	%	89	%
Dividend payout ratio of adjusted net earnings		80	%	77	%

(1)

12-month periods ended December 31	2017			2016
Net income attributable to Common Shares	$	1,460		$	1,223
Gain and net equity income related to real estate redevelopment project, after income taxes	(1		)	(16		)
Gain on exchange of wireless spectrum licences, after income taxes	—			(13		)
Provisions related to business combinations, after income taxes	(22		)	15
Immediately vesting transformative compensation expense, after income taxes	—			224
Income tax-related adjustments	21			(17		)

Adjusted net earnings attributable to Common Shares	$	1,458		$	1,416

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfFinancialObjectivesForManagingCapitalExplanatory (label)

As at, or for the 12-month periods ended, December 31 ($ in millions)	Objective	2017		2016
Components of debt and coverage ratios
Net debt 1		$	13,422	$	12,652
EBITDA — excluding restructuring and other costs 2		$	4,913	$	4,708
Net interest cost 3		$	567	$	566
Debt ratio
Net debt to EBITDA — excluding restructuring and other costs	2.00 – 2.504	2.73		2.69
Coverage ratios
Earnings coverage 5		4.6		4.0
EBITDA — excluding restructuring and other costs interest coverage 6		8.7		8.3

(1)

Net debt is calculated as follows:

As at December 31	Note	2017			2016
Long-term debt	26	$	13,660		$	12,931
Debt issuance costs netted against long-term debt		73			67
Derivative (assets) liabilities, net		93			20
Accumulated other comprehensive income amounts arising from financial instruments used to manage interest rate and currency risks associated with U.S. dollar-denominated long-term debt (excluding tax effects)		5			(34		)
Cash and temporary investments, net		(509		)	(432		)
Short-term borrowings	22	100			100

Net debt		$	13,422		$	12,652

(2)

EBITDA — excluding restructuring and other costs is calculated as follows:

Years ended December 31	Note	2017		2016
EBITDA	5	$	4,774	$	4,229
Restructuring and other costs	16	139		479

EBITDA — excluding restructuring and other costs		$	4,913	$	4,708

(3)

(4)

(5)

(6)

Fact Table
Network	30403 - Disclosure - financial instruments (Tables) (http://www.telus.com/role/DisclosureFinancialInstrumentsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfAllowanceForCreditLossesExplanatory (label)

Years ended December 31 (millions)	2017			2016
Balance, beginning of period	$	54		$	52
Additions (doubtful accounts expense)	54			58
Accounts written off, net of recoveries	(66		)	(65		)
Other	1			9

Balance, end of period	$	43		$	54

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfCreditRiskExposureExplanatory (label)

As at December 31 (millions)	2017		2016
Cash and temporary investments, net	$	509	$	432
Accounts receivable	1,623		1,471
Derivative assets	24		17

	$	2,156	$	1,920

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory (label)

	2017								2016
As at December 31 (millions)	Designation	Maximum maturity date	Notional amount		Fair value and carrying value		Price or rate		Maximum maturity date	Notional amount		Fair value and carrying value		Price or rate
Current Assets 1
Derivatives used to manage
Currency risk arising from U.S. dollar-denominated purchases	HFH 2	2018	$	110	$	2	US$1.00: C$1.24		2017	$	263	$	7	US$1.00: C$1.30
Currency risk arising from U.S. dollar-denominated purchases	HFT 3	—	$	—	—		—		2017	$	8	—		US$1.00: C$1.28
Currency risk arising from U.S. dollar revenues	HFT 3	2018	$	71	1		US$1.00: C$1.25		2017	$	4	—		US$1.00: C$1.34
Changes in share-based compensation costs (Note 14(b))	HFH 2	2018	$	73	14		$	40.91	2017	$	6	1		$	41.00
Currency risk arising from U.S. dollar-denominated long-term debt (Note 26(b)-(c))	HFH 2	2018	$	124	1		US$1.00: C$1.24		2017	$	191	3		US$1.00: C$1.32

					$	18						$	11

Other Long-Term Assets 1
Derivatives used to manage
Changes in share-based compensation costs (Note 14(b))	HFH 2	2019	$	63	$	6	$	45.46	2018	$	69	$	6	$	40.77

Current Liabilities 1
Derivatives used to manage
Currency risk arising from U.S. dollar-denominated purchases	HFH 2	2018	$	376	$	14	US$1.00: C$1.30		2017	$	69	2		US$1.00: C$1.38
Currency risk arising from U.S. dollar revenues	HFT 3	—	$	—	—		—		2017	$	124	5		US$1.00: C$1.34
Changes in share-based compensation costs (Note 14(b))	HFH 2	—	$	—	—		—		2017	$	65	3		$	45.76
Currency risk arising from U.S. dollar-denominated long-term debt (Note 26(b)-(c))	HFH 2	2018	$	1,036	18		US$1.00: C$1.28		2017	$	422	2		US$1.00: C$1.35
Interest rate risk associated with planned refinancing of debt maturing	HFH 2	2018	$	300	1		2.14%, GOC 10-year term		—	—		—		—

					$	33						$	12

Other Long-Term Liabilities 1
Derivatives used to manage
Currency risk arising from U.S. dollar-denominated long-term debt (Note 26(b)-(c))	HFH 2	2027	$	1,910	$	76	US$1.00: C$1.32		2027	$	1,036	21		US$1.00: C$1.32

(1)

Derivative financial assets and liabilities are not set off.

(2)

Designated as held for hedging (HFH) upon initial recognition (cash flow hedging item); hedge accounting is applied.

(3)

Designated as held for trading (HFT) upon initial recognition; hedge accounting is not applied.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory (label)

					Fair value measurements at reporting date using
					Quoted prices in active markets for identical items				Significant other observable inputs				Significant unobservable inputs
	Carrying value				(Level 1)				(Level 2)				(Level 3)
As at December 31 (millions)	2017		2016		2017		2016		2017		2016		2017		2016
Assets
Foreign exchange derivatives	$	4	$	10	$	—	$	—	$	4	$	10	$	—	$	—
Share-based compensation derivatives	20		7		—		—		20		7		—		—
Available-for-sale portfolio investments	41		62		—		—		41		62		—		—

	$	65	$	79	$	—	$	—	$	65	$	79	$	—	$	—

Liabilities
Foreign exchange derivatives	$	108	$	30	$	—	$	—	$	108	$	30	$	—	$	—
Share-based compensation derivatives	—		3		—		—		—		3		—		—
Starting interest rate derivatives	1		—		—		—		1		—		—		—

	$	109	$	33	$	—	$	—	$	109	$	33	$	—	$	—

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory (label)

	2017				2016
As at December 31 (millions)	Carrying value		Fair value		Carrying value		Fair value
Long-term debt (Note 26)	$	13,660	$	14,255	$	12,931	$	13,533

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory (label)

		Amount of gain (loss) recognized in other comprehensive income						Gain (loss) reclassified from other comprehensive income to income (effective portion) (Note 11)
		(effective portion) (Note 11)							Amount
Years ended December 31 (millions)	Note	2017			2016			Location	2017			2016
Derivatives used to manage currency risk
Arising from U.S. dollar-denominated purchases		$	(23	)	$	(12	)	Goods and services purchased Financing costs	$	(5	)	$	(9	)
Arising from U.S. dollar-denominated long-term debt	26(b)-(c)	(109		)	(54		)		(146		)	(20		)
		(132		)	(66		)		(151		)	(29		)
Derivatives used to manage other price risk
Arising from changes in share-based compensation costs	14(b)	24			19			Employee benefits expense	17			8

		$	(108	)	$	(47	)		$	(134	)	$	(21	)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory (label)

	Risks
			Market risks
Financial instrument	Credit	Liquidity	Currency	Interest rate	Other price
Measured at amortized cost
Accounts receivable	X		X
Construction credit facilities advances to real estate joint venture				X
Short-term obligations		X	X	X
Accounts payable		X	X
Provisions (including restructuring accounts payable)		X	X		X
Long-term debt		X	X	X
Measured at fair value
Cash and temporary investments	X		X	X
Long-term investments (not subject to significant influence) 1			X		X
Foreign exchange derivatives 2	X	X	X
Share-based compensation derivatives 2	X	X			X

(1)

Long-term investments over which we do not have significant influence are measured at fair value if those fair values can be reliably measured.

(2)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:MaturityAnalysisForDerivativeFinancialLiabilities (label)

	Non-derivative									Derivative
	Non-interest					Construction		Composite long-term debt
As at December 31, 2017	bearing financial		Short-term			credit facilities commitment 2		Long-term debt 1		Currency swap agreement amounts to be exchanged 3					Currency swap agreement amounts to be exchanged
(millions)	liabilities		borrowings 1			(Note 21)		(Note 26)		(Receive)			Pay		(Receive)			Pay		Total
2018	$	2,232	$	103		$	67	$	1,928	$	(1,188	)	$	1,206	$	(545	)	$	557	$	4,360
2019	40		—			—		1,531		(44		)	46		—			—		1,573
2020	19		—			—		1,480		(44		)	46		—			—		1,501
2021	76		—			—		1,480		(44		)	46		—			—		1,558
2022	18		—			—		1,913		(44		)	46		—			—		1,933
Thereafter	16		—			—		11,430		(1,591		)	1,679		—			—		11,534

Total	$	2,401	$		103	$	67	$	19,762	$	(2,955	)	$	3,069	$	(545	)	$	557	$	22,459

								Total (Note 26(g))					$	19,876

(1)

(2)

The drawdowns on the construction credit facilities are expected to occur as construction progresses through 2019.

(3)

	Non-derivative								Derivative
As at	Non-interest				Construction		Composite long-term debt
December 31,	bearing				credit facilities		Long-term		Currency swap agreement							Currency swap agreement
2016	financial		Short-term		commitment 2		debt 1		amounts to be exchanged 3							amounts to be exchanged
(millions)	liabilities		borrowings 1		(Note 21)		(Note 26)		(Receive)			Pay		Other		(Receive)			Pay		Total
2017	$	1,949	$	1	$	93	$	1,832	$	(634	)	$	634	$	3	$	(475	)	$	469	$	3,872
2018	227		102		—		750		(23		)	23		—		—			—		1,079
2019	16		—		—		1,498		(23		)	23		—		—			—		1,514
2020	9		—		—		1,447		(23		)	23		—		—			—		1,456
2021	9		—		—		1,711		(23		)	23		—		—			—		1,720
Thereafter	5		—		—		11,584		(930		)	921		—		—			—		11,580

Total	$	2,215	$	103	$	93	$	18,822	$	(1,656	)	$	1,647	$	3	$	(475	)	$	469	$	21,221

							Total					$	18,813

(1)

(2)

The drawdowns on the construction credit facilities are expected to occur as construction progresses through 2018.

(3)

The amounts included in undiscounted non-derivative long-term debt in respect of U.S. dollar-denominated long-term debt, and the corresponding amounts in the long-term debt currency swaps receive column, have been determined based upon the currency exchange rates in effect as at December 31, 2016. The hedged U.S. dollar-denominated long-term debt contractual amounts at maturity, in effect, are reflected in the long-term debt currency swaps pay column as gross cash flows are exchanged pursuant to the currency swap agreements.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities (label)

	Non-derivative									Derivative
	Non-interest					Construction		Composite long-term debt
As at December 31, 2017	bearing financial		Short-term			credit facilities commitment 2		Long-term debt 1		Currency swap agreement amounts to be exchanged 3					Currency swap agreement amounts to be exchanged
(millions)	liabilities		borrowings 1			(Note 21)		(Note 26)		(Receive)			Pay		(Receive)			Pay		Total
2018	$	2,232	$	103		$	67	$	1,928	$	(1,188	)	$	1,206	$	(545	)	$	557	$	4,360
2019	40		—			—		1,531		(44		)	46		—			—		1,573
2020	19		—			—		1,480		(44		)	46		—			—		1,501
2021	76		—			—		1,480		(44		)	46		—			—		1,558
2022	18		—			—		1,913		(44		)	46		—			—		1,933
Thereafter	16		—			—		11,430		(1,591		)	1,679		—			—		11,534

Total	$	2,401	$		103	$	67	$	19,762	$	(2,955	)	$	3,069	$	(545	)	$	557	$	22,459

								Total (Note 26(g))					$	19,876

(1)

(2)

The drawdowns on the construction credit facilities are expected to occur as construction progresses through 2019.

(3)

	Non-derivative								Derivative
As at	Non-interest				Construction		Composite long-term debt
December 31,	bearing				credit facilities		Long-term		Currency swap agreement							Currency swap agreement
2016	financial		Short-term		commitment 2		debt 1		amounts to be exchanged 3							amounts to be exchanged
(millions)	liabilities		borrowings 1		(Note 21)		(Note 26)		(Receive)			Pay		Other		(Receive)			Pay		Total
2017	$	1,949	$	1	$	93	$	1,832	$	(634	)	$	634	$	3	$	(475	)	$	469	$	3,872
2018	227		102		—		750		(23		)	23		—		—			—		1,079
2019	16		—		—		1,498		(23		)	23		—		—			—		1,514
2020	9		—		—		1,447		(23		)	23		—		—			—		1,456
2021	9		—		—		1,711		(23		)	23		—		—			—		1,720
Thereafter	5		—		—		11,584		(930		)	921		—		—			—		11,580

Total	$	2,215	$	103	$	93	$	18,822	$	(1,656	)	$	1,647	$	3	$	(475	)	$	469	$	21,221

							Total					$	18,813

(1)

(2)

The drawdowns on the construction credit facilities are expected to occur as construction progresses through 2018.

(3)

The amounts included in undiscounted non-derivative long-term debt in respect of U.S. dollar-denominated long-term debt, and the corresponding amounts in the long-term debt currency swaps receive column, have been determined based upon the currency exchange rates in effect as at December 31, 2016. The hedged U.S. dollar-denominated long-term debt contractual amounts at maturity, in effect, are reflected in the long-term debt currency swaps pay column as gross cash flows are exchanged pursuant to the currency swap agreements.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk (label)

Years ended December 31	Net income						Other comprehensive income						Comprehensive income
(increase (decrease) in millions)	2017			2016			2017			2016			2017			2016
Reasonably possible changes in market risks 1
10% change in C$: US$ exchange rate
Canadian dollar appreciates	$	(1	)	$	(1	)	$	(15	)	$	(4	)	$	(16	)	$	(5	)
Canadian dollar depreciates	$	1		$	1		$	15		$	6		$	16		$	7
25% 2 change in Common Share price 3
Price increases	$	(8	)	$	(8	)	$	13		$	16		$	5		$	8
Price decreases	$	14		$	8		$	(13	)	$	(16	)	$	1		$	(8	)

(1)

The sensitivity analysis assumes that we would realize the changes in exchange rates; in reality, the competitive marketplace in which we operate would have an effect on this assumption.

(2)

(3)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:AnalysisOfAgingCustomerAccountsReceivableTextBlock (label)

		2017							2016
As at December 31 (millions)	Note	Gross		Allowance			Net 1		Gross		Allowance			Net 1
Customer accounts receivable, net of allowance for doubtful accounts
Less than 30 days past billing date		$	909	$	(5	)	$	904	$	908	$	(11	)	$	897
30-60 days past billing date		185		(8		)	177		185		(9		)	176
61-90 days past billing date		60		(8		)	52		44		(9		)	35
More than 90 days past billing date		67		(22		)	45		80		(25		)	55

	6	$	1,221	$	(43	)	$	1,178	$	1,217	$	(54	)	$	1,163

(1)

Net amounts represent customer accounts receivable for which an allowance had not been made as at the dates of the Consolidated statements of financial position.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:ScheduleOfGainsAndLossesFromDerivativeInstrumentsClassifiedAsHeldForTradingTableTextBlock (label)

		Gain (loss) recognized in income on derivatives
Years ended December 31 (millions)	Location	2017		2016
Derivatives used to manage currency risk	Financing costs	$	3	$	(2	)

Fact Table
Network	30503 - Disclosure - segment information (Tables) (http://www.telus.com/role/DisclosureSegmentInformationTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfOperatingSegmentsReconciliationExplanatory (label)

Years ended December 31	Wireless				Wireline				Eliminations						Consolidated
(millions)	2017		2016		2017		2016		2017			2016			2017		2016
Operating revenues
External revenues
Service	$	6,994	$	6,569	$	5,484	$	5,431	$	—		$	—		$	12,478	$	12,000
Equipment	505		509		219		216		—			—			724		725

Revenues arising from contracts with customers	7,499		7,078		5,703		5,647		—			—			13,202		12,725
Other operating income	36		37		66		37		—			—			102		74

	7,535		7,115		5,769		5,684		—			—			13,304		12,799
Intersegment revenues	43		58		206		194		(249		)	(252		)	—		—

	$	7,578	$	7,173	$	5,975	$	5,878	$	(249	)	$	(252	)	$	13,304	$	12,799

EBITDA 1 contribution	$	3,099	$	2,906	$	1,675	$	1,323	$	—		$	—		$	4,774	$	4,229

CAPEX, excluding spectrum licences 2	$	978	$	982	$	2,116	$	1,986	$	—		$	—		$	3,094	$	2,968

Operating revenues — external (above)	$	13,304	$	12,799
Goods and services purchased	5,935		5,631
Employee benefits expense	2,595		2,939

EBITDA (above)	4,774		4,229
Depreciation	1,617		1,564
Amortization	552		483

Operating income	2,605		2,182
Financing costs	573		520

Income before income taxes	$	2,032	$	1,662

(1)

(2)

Fact Table
Network	30603 - Disclosure - revenue from contracts with customers (Tables) (http://www.telus.com/role/DisclosureRevenueFromContractsWithCustomersTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDetailedInformationAboutTradeAndOtherReceivablesTextBlock (label)

As at December 31 (millions)	Note	2017			2016
Customer accounts receivable	4(b)	$	1,221		$	1,217
Accrued receivables — customer		143			131
Allowance for doubtful accounts	4(b)	(43		)	(54		)

		1,321			1,294
Accrued receivables — other		302			177

		$	1,623		$	1,471

Fact Table
Network	30703 - Disclosure - other operating income (Tables) (http://www.telus.com/role/DisclosureOtherOperatingIncomeTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

Schedule of other operating income

Years ended December 31 (millions)	Note	2017		2016
Government assistance, including deferral account amortization		$	32	$	36
Investment income, gain on disposal of assets and other		44		37
Change in business combination-related accrued receivable	18(b)	26		—
Interest income	21(c)	—		1

		$	102	$	74

Fact Table
Network	30803 - Disclosure - employee benefits expense (Tables) (http://www.telus.com/role/DisclosureEmployeeBenefitsExpenseTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfInformationAboutEmployeesExplanatory (label)

		2017			2016
Years ended December 31 (millions)	Note	Total			Traditional			Transformative compensation (Note 16(c))		Total
Employee benefits expense — gross
Wages and salaries		$	2,594		$	2,548		$	185	$	2,733
Share-based compensation 1	14	128			114			67		181
Pensions — defined benefit	15(b)	82			92			—		92
Pensions — defined contribution	15(f)	88			89			41		130
Other defined benefits	15(g)	—			1			—		1
Restructuring costs 1	16(b)	26			112			—		112
Other		156			153			12		165

		3,074			3,109			305		3,414

Capitalized internal labour costs
Property, plant and equipment		(321		)	(314		)	—		(314		)
Intangible assets subject to amortization		(158		)	(161		)	—		(161		)

		(479		)	(475		)	—		(475		)

		$	2,595		$	2,634		$	305	$	2,939

(1)

For the year ended December 31, 2017, $(7) (2016 — $4) of share-based compensation expense (recovery) was included in restructuring costs.

Fact Table
Network	30903 - Disclosure - financing costs (Tables) (http://www.telus.com/role/DisclosureFinancingCostsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDetailedInformationAboutFinancingCostsTextBlock (label)

Years ended December 31 (millions)	Note	2017			2016
Interest expense
Interest on long-term debt — gross		$	561		$	538
Capitalized long-term debt interest 1	18(a)	—			(52		)

Interest on long-term debt — net		561			486
Interest on short-term borrowings and other		5			4
Interest accretion on provisions	25	13			12

		579			502
Employee defined benefit plans net interest	15(b), (g)	6			6
Foreign exchange		(5		)	15

		580			523
Interest income		(7		)	(3		)

		$	573		$	520

(1)

Long-term debt interest at a composite rate of 3.31% was capitalized to intangible assets with indefinite lives in the comparative period.

Fact Table
Network	31003 - Disclosure - income taxes (Tables) (http://www.telus.com/role/DisclosureIncomeTaxesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDeferredTaxesExplanatory (label)

(millions)	Property, plant and equipment and intangible assets subject to amortization		Intangible assets with indefinite lives		Partnership income unallocated for income tax purposes			Net pension and share- based compensation amounts			Reserves not currently deductible			Losses available to be carried forward 1			Other			Net deferred income tax liability
As at January 1, 2016	$	785	$	1,380	$	195		$	(45	)	$	(160	)	$	(3	)	$	3		$	2,155
Deferred income tax expense recognized in Net income	85		77		(200		)	(7		)	12			(3		)	(6		)	(42		)
Other comprehensive income	—		—		—			4			—			—			(10		)	(6		)
Deferred income taxes charged directly to owners’ equity and other	—		—		—			—			—			—			(5		)	(5		)

As at December 31, 2016 2	870		1,457		(5		)	(48		)	(148		)	(6		)	(18		)	2,102
Deferred income tax expense recognized in Net income	348		84		5			(11		)	8			(1		)	(3		)	430
Other comprehensive income	—		—		—			(61		)	—			—			4			(57		)
Deferred income taxes charged directly to owners’ equity and other	3		20		—			—			—			—			(3		)	20

As at December 31, 2017 3	$	1,221	$	1,561	$	—		$	(120	)	$	(140	)	$	(7	)	$	(20	)	$	2,495

(1)

We expect to be able to utilize our non-capital losses prior to expiry.

(2)

Deferred tax liability of $2,107, net of deferred tax asset of $5 (included in Other long-term assets).

(3)

Deferred tax liability of $2,500, net of deferred tax asset of $5 (included in Other long-term assets).

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock (label)

Years ended December 31 (millions)	2017			2016
Current income tax expense
For the current reporting period	$	205		$	506
Adjustments recognized in the current period for income taxes of prior periods	(82		)	(38		)

	123			468

Deferred income tax expense (recovery)
Arising from the origination and reversal of temporary differences	324			(64		)
Revaluation of deferred income tax liability to reflect future statutory income tax rates	28			(4		)
Adjustments recognized in the current period for income taxes of prior periods	78			26

	430			(42		)

	$	553		$	426

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock (label)

Years ended December 31 ($ in millions)	2017					2016
Income taxes calculated at applicable statutory rates	$	541		26.6	%	$	444		26.7	%
Revaluation of deferred income tax liability to reflect future income tax rates	28			1.3		(4		)	(0.2	)
Adjustments recognized in the current period for income taxes of prior periods	(4		)	(0.2	)	(12		)	(0.8	)
Other	(12		)	(0.5	)	(2		)	(0.1	)

Income tax expense per Consolidated statements of income and other comprehensive income	$	553		27.2	%	$	426		25.6	%

Fact Table
Network	31103 - Disclosure - other comprehensive income (Tables) (http://www.telus.com/role/DisclosureOtherComprehensiveIncomeTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemExplanatoryTableTextBlock (label)

																												Item never
																												reclassified
	Items that may subsequently be reclassified to income																											to income
	Change in unrealized fair value of derivatives designated as cash flow hedges in current period (Note 4(i))																					Change in
	Derivatives used to manage currency risk								Derivatives used to manage other price risk											Cumulative		unrealized fair
(millions)	Gains (losses) arising			Prior period (gains) losses transferred to net income		Total			Gains (losses) arising		Prior period (gains) losses transferred to net income			Total			Total			foreign currency translation adjustment		value of available-for- sale financial assets			Accumulated other comp. income			Employee defined benefit plans re-measurements			Other comp. income
Accumulated balance as at January 1, 2016						$	6							$	(6	)	$	—		$	43	$	16		$	59
Other comprehensive income (loss)
Amount arising	$	(66	)	$	29	(37		)	$	19	$	(8	)	11			(26		)	5		—			(21		)	$	—		$	(21	)
Income taxes	$	(18	)	$	9	(9		)	$	5	$	(2	)	3			(6		)	—		—			(6		)	—			(6		)

Net						(28		)						8			(20		)	5		—			(15		)	$	—		$	(15	)

Accumulated balance as at December 31, 2016						(22		)						2			(20		)	48		16			44
Other comprehensive income (loss)
Amount arising	$	(132	)	$	151	19			$	24	$	(17	)	7			26			5		(13		)	18			$	(234	)	$	(216	)
Income taxes	$	(21	)	$	27	6			$	6	$	(5	)	1			7			—		(2		)	5			(62		)	(57		)

Net						13								6			19			5		(11		)	13			$	(172	)	$	(159	)

Accumulated balance as at December 31, 2017						$	(9	)						$	8		$	(1	)	$	53	$	5		$	57

Attributable to:
Common Shares																									$	51
Non-controlling interests																									6

																									$	57

Fact Table
Network	31203 - Disclosure - per share amounts (Tables) (http://www.telus.com/role/DisclosurePerShareAmountsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:EarningsPerShareExplanatory (label)

Years ended December 31 (millions)	2017	2016
Basic total weighted average number of Common Shares outstanding	593	592
Effect of dilutive securities
Share option awards	—	1

Diluted total weighted average number of Common Shares outstanding	593	593

Fact Table
Network	31303 - Disclosure - dividends per share (Tables) (http://www.telus.com/role/DisclosureDividendsPerShareTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:IfrsDividendsDeclaredTableTextBlock (label)

Years ended December 31 (millions
except per share amounts)	2017						2016
	Declared			Paid to			Declared			Paid to
Common Share dividends	Effective	Per share		shareholders	Total		Effective	Per share		shareholders	Total
Quarter 1 dividend	Mar. 10, 2017	$	0.4800	Apr. 3, 2017	$	283	Mar. 11, 2016	$	0.44	Apr. 1, 2016	$	261
Quarter 2 dividend	Jun. 9, 2017	0.4925		Jul. 4, 2017	293		Jun. 10, 2016	0.46		Jul. 4, 2016	274
Quarter 3 dividend	Sep. 8, 2017	0.4925		Oct. 2, 2017	292		Sep. 9, 2016	0.46		Oct. 3, 2016	272
Quarter 4 dividend	Dec. 11, 2017	0.5050		Jan. 2, 2018	299		Dec. 9, 2016	0.48		Jan. 3, 2017	284

		$	1.9700		$	1,167		$	1.84		$	1,091

Fact Table
Network	31403 - Disclosure - share-based compensation (Tables) (http://www.telus.com/role/DisclosureShareBasedCompensationTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Scenario [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusCorporationRestrictedStockUnitsMember (label)

ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory (label)

Number of non-vested restricted stock units as at December 31	2017	2016
Restricted stock units without market performance conditions
Restricted stock units with only service conditions	3,327,464	3,260,745
Notional subset affected by total customer connections performance condition	154,452	130,234

	3,481,916	3,390,979
Restricted stock units with market performance conditions
Notional subset affected by relative total shareholder return performance condition	463,357	390,703

	3,945,273	3,781,682

	2017						2016
	Number of restricted stock units 1				Weighted average grant-		Number of restricted stock units 1				Weighted average grant-
Years ended December 31	Non-vested		Vested		date fair value		Non-vested		Vested		date fair value
Outstanding, beginning of period
Non-vested	3,390,979		—		$	41.71	3,564,412		—		$	41.42
Vested	—		29,108		$	38.09	—		29,008		$	40.00
Issued
Initial award	1,825,688		—		$	43.56	1,942,446		—		$	39.74
In lieu of dividends	206,715		455		$	43.98	209,027		381		$	41.63
Vested	(1,766,680	)	1,766,680		$	43.73	(2,024,130	)	2,024,130		$	39.31
Settled in cash	—		(1,698,008	)	$	43.63	—		(2,004,126	)	$	39.29
Forfeited and cancelled	(174,786	)	(65,387	)	$	42.88	(300,776	)	(20,285	)	$	35.70

Outstanding, end of period
Non-vested	3,481,916		—		$	41.87	3,390,979		—		$	41.71
Vested	—		32,848		$	41.00	—		29,108		$	38.09

(1)

Excluding the notional subset of restricted stock units affected by the relative total shareholder return performance condition.

Vesting in years ending December 31	Number of fixed-cost restricted stock units	Our fixed cost per restricted stock unit		Number of variable-cost restricted stock units	Total number of non-vested restricted stock units 1
2018	1,792,286	$	40.91	28,951	1,821,237
2019	1,385,734	$	45.46	274,945	1,660,679

	3,178,020			303,896	3,481,916

(1)

Excluding the notional subset of restricted stock units affected by the relative total shareholder return performance condition.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusInternationalCdaIncRestrictedStockUnitsMember (label)

ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory (label)

	2017									2016
	US$ denominated						Canadian $ denominated			US$ denominated			Canadian $ denominated
Years ended	Number of restricted stock units				Grant-date		Number of vested restricted	Grant-date		Number of non-vested restricted	Grant-date		Number of restricted stock units			Grant-date
December 31	Non-vested		Vested		fair value		stock units	fair value		stock units	fair value		Non-vested		Vested	fair value
Outstanding, beginning of period
Non-vested	163,785		—		US$	21.90	—	$	—	—	US$	—	—		—	$	—
Vested	—		—		US$	—	32,299	$	21.36	—	US$	—	—		—	$	—
Issued — initial award	213,768				US$	26.40	—	$	—	163,785	US$	21.90	32,299		—	$	21.36
Vested	(208	)	208		US$	24.10	—	$	—	—	US$	—	(32,299	)	32,299	$	21.36
Exercised	—		(208	)	US$	24.10	—	$	—	—	US$	—	—		—	$	—
Forfeited and cancelled	(2,559	)	—		US$	24.10	—	$	—	—	US$	—	—		—	$	—

Outstanding, end of period
Non-vested	374,786		—		US$	24.45	—	$	—	163,785	US$	21.90	—		—	$	—
Vested	—		—		US$	—	32,299	$	21.36	—	US$	—	—		32,299	$	21.36

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusCorporationShareOptionsMember (label)

ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory (label)

	2017				2016
Years ended December 31	Number of share options		Weighted average share option price		Number of share options		Weighted average share option price
Outstanding, beginning of period	1,417,693		$	24.49	2,375,596		$	22.96
Exercised 1	(652,926	)	$	21.90	(925,682	)	$	20.75
Forfeited	(3,908	)	$	27.56	(13,112	)	$	24.49
Expired	(20,388	)	$	16.31	(19,109	)	$	15.29

Outstanding, end of period 2	740,471		$	26.99	1,417,693		$	24.49

(1)

(2)

All outstanding TELUS Corporation share options are vested, their range of prices is $23.08 — $31.69 per share and their weighted average remaining contractual life is 0.9 years.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusInternationalCdaIncShareOptionsMember (label)

ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory (label)

	2017						2016
	US$ denominated			Canadian $ denominated			US$ denominated			Canadian $ denominated
Years ended December 31	Number of share options	Weighted average share option price 1		Number of share options	Share option price 2		Number of share options	Weighted average share option price 1		Number of share options	Share option price 2
Outstanding, beginning of period	573,354	US$	30.86	53,832	$	21.36	—	US$	—	—	$	—
Granted	175,272	US$	27.70	—	$	—	573,354	US$	30.86	53,832	$	21.36

Outstanding, end of period	748,626	US$	30.12	53,832	$	21.36	573,354	US$	30.86	53,832	$	21.36

(1)

The range of share option prices is US$21.90 — US$40.25 per TELUS International (Cda) Inc. equity share and the weighted average remaining contractual life is 9.2 years (2016 — 10.0 years).

(2)

The weighted average remaining contractual life is 8.5 years (2016 — 9.5 years).

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:SharebasedPaymentArrangementsMember (label)

ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss (label)

	2017								2016
Years ended December 31 (millions)	Note	Employee benefits expense		Associated operating cash outflows			Statement of cash flows adjustment		Employee benefits expense		Associated operating cash outflows			Statement of cash flows adjustment
Restricted stock units 1	(b)	$	83	$	(67	)	$	16	$	81	$	(83	)	$	(2	)
Transformative compensation 2	16(c)	—		—			—		64		(64		)	—
Employee share purchase plan 3	(c)	37		(37		)	—		40		(40		)	—
Share option awards	(d)	1		—			1		—		—			—

		$	121	$	(104	)	$	17	$	185	$	(187	)	$	(2	)

(1)

(2)

(3)

Fact Table
Network	31503 - Disclosure - employee future benefits (Tables) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory (label)

							Fair value measurements at reporting date using
	Total						Quoted prices in active markets for identical items				Other
As at December 31 (millions)	2017			2016			2017		2016		2017		2016
Asset class
Equity securities
Canadian	$	1,385		$	1,172		$	1,129	$	1,135	$	256	$	37
Foreign	1,867			1,876			853		1,189		1,014		687
Debt securities
Issued by national, provincial or local governments	1,512			1,463			1,389		1,362		123		101
Corporate debt securities	1,208			1,317			—		—		1,208		1,317
Asset-backed securities	31			31			—		—		31		31
Commercial mortgages	1,659			1,107			—		—		1,659		1,107
Cash, cash equivalents and other	486			1,151			38		29		448		1,122
Real estate	1,047			756			—		—		1,047		756

	9,195			8,873			$	3,409	$	3,715	$	5,786	$	5,158

Effect of asset ceiling limit	(110		)	(115		)

	$	9,085		$	8,758

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory (label)

As at December 31 (millions)	2017			2016
PRESENT VALUE OF THE DEFINED BENEFIT OBLIGATIONS
Balance at beginning of year	$	8,837		$	8,620
Current service cost	100			109
Past service cost	(2		)	2
Interest expense	331			340
Actuarial loss (gain) arising from:
Demographic assumptions	77			25
Financial assumptions	526			184
Benefits paid	(450		)	(443		)

Balance at end of year	9,419			8,837

PLAN ASSETS
Fair value at beginning of year	8,873			8,641
Return on plan assets
Notional interest income on plan assets at discount rate	330			339
Actual return on plan assets greater than discount rate	360			247
Contributions
Employer contributions (d)	66			70
Employees’ contributions	22			25
Benefits paid	(450		)	(443		)
Administrative fees	(6		)	(6		)

Fair value at end of year	9,195			8,873

Effect of asset ceiling limit
Beginning of year	(115		)	(74		)
Change	5			(41		)

End of year	(110		)	(115		)

Fair value of plan assets at end of year, net of asset ceiling limit	9,085			8,758

FUNDED STATUS — PLAN SURPLUS (DEFICIT)	$	(334	)	$	(79	)

As at December 31 (millions)	Note	2017			2016
Funded status — plan surplus (deficit)
Pension benefit plans		$	(334	)	$	(79	)
Other benefit plans		(47		)	(47		)

		$	(381	)	$	(126	)

Presented in the Consolidated statements of financial position as:
Other long-term assets	20	$	156		$	358
Other long-term liabilities	27	(537		)	(484		)

		$	(381	)	$	(126	)

	2017										2016
As at December 31 (millions)	Defined benefit obligations accrued		Plan assets		Difference			PBSR solvency position 1			Defined benefit obligations accrued		Plan assets		Difference			PBSR solvency position 1
Pension plans that have plan assets in excess of defined benefit obligations accrued	$	8,116	$	8,272	$	156		$	335		$	7,610	$	7,968	$	358		$	320
Pension plans that have defined benefit obligations accrued in excess of plan assets
Funded	1,099		813		(286		)	(80		)	1,034		790		(244		)	(67		)
Unfunded	204		—		(204		)	N/A		2	193		—		(193		)	N/A		2

	1,303		813		(490		)	(80		)	1,227		790		(437		)	(67		)

	$	9,419	$	9,085	$	(334	)	$	255		$	8,837	$	8,758	$	(79	)	$	253

Defined benefit obligations accrued owed to:
Active members	$	2,285									$	2,140
Deferred members	560										557
Pensioners	6,574										6,140

	$	9,419									$	8,837

(1)

(2)

PBSR solvency position calculations are not required for the three pension plans arising from a pre-merger acquisition or for the non-registered, unfunded pension plans.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory (label)

	2017		2016
Discount rate 1 used to determine:
Net benefit costs for the year ended December 31	3.80	%	4.00	%
Defined benefit obligations accrued as at December 31	3.40	%	3.80	%
Current service cost in subsequent fiscal year	3.50	%	4.00	%
Rate of future increases in compensation used to determine:
Net benefit costs for the year ended December 31	2.51	%	3.00	%
Defined benefit obligations accrued as at December 31	2.70	%	2.51	%

(1)

The discount rate disclosed in this table reflects the computation of an average discount rate that replicates the timing of the obligation cash flows.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDefinedBenefitPensionPlanAssetAllocationsTableTextBlock (label)

	Target allocation	Percentage of plan assets at end of year
Years ended December 31	2018	2017		2016
Equity securities	20-50%	35	%	34	%
Debt securities	40-75%	53	%	57	%
Real estate	5-25%	12	%	9	%
Other	0-10%	—		—

		100	%	100	%

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDefinedBenefitPlanExpenseTableTextBlock (label)

Years ended December 31 (millions)	2017												2016
Recognized in	Employee benefits expense (Note 8)			Financing costs (Note 9)			Other comp. income (Note 11)			Total			Employee benefits expense (Note 8)		Financing costs (Note 9)			Other comp. income (Note 11)			Total
Current service cost	$	78		$	—		$	—		$	78		$	84	$	—		$	—		$	84

Past service costs	(2		)	—			—			(2		)	2		—			—			2

Net interest; return on plan assets
Interest expense arising from defined benefit obligations accrued	—			331			—			331			—		340			—			340
Return, including interest income, on plan assets 1	—			(330		)	(360		)	(690		)	—		(339		)	(247		)	(586		)
Interest effect on asset ceiling limit	—			4			—			4			—		3			—			3

	—			5			(360		)	(355		)	—		4			(247		)	(243		)

Administrative fees	6			—			—			6			6		—			—			6

Re-measurements arising from:
Demographic assumptions	—			—			77			77			—		—			25			25
Financial assumptions	—			—			526			526			—		—			184			184

	—			—			603			603			—		—			209			209

Changes in the effect of limiting net defined benefit assets to the asset ceiling	—			—			(9		)	(9		)	—		—			38			38

	$	82		$	5		$	234		$	321		$	92	$	4		$	—		$	96

(1)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDefinedBenefitPlanFutureBenefitPaymentsTableTextBlock (label)

Years ending December 31 (millions)
2018	$	446
2019	454
2020	458
2021	465
2022	471
2023-2027	2,440

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDefinedContributionPensionPlanExpenseTableTextBlock (label)

Years ended, or as at, December 31	2017						2016
Increase (decrease) (millions)	Change in obligations			Change in expense			Change in obligations			Change in expense
Sensitivity of key demographic assumptions to an increase of one year 1 in life expectancy	$	270		$	11		$	228		$	10
Sensitivity of key financial assumptions to a hypothetical decrease of 25 basis points 1 in:
Discount rate	$	337		$	16		$	310		$	17
Rate of future increases in compensation	$	(34	)	$	(3	)	$	(27	)	$	(3	)

(1)

	2017				2016
Years ended December 31 (millions)	Total		Traditional		Transformative compensation (Notes 8, 16(c))		Total
Union pension plan and public service pension plan contributions	$	23	$	26	$	36	$	62
Other defined contribution pension plans	65		63		5		68

	$	88	$	89	$	41	$	130

Fact Table
Network	31603 - Disclosure - restructuring and other costs (Tables) (http://www.telus.com/role/DisclosureRestructuringAndOtherCostsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:ScheduleOfRestructuringAndOtherCostsExplanatory (label)

	Restructuring (b)				Other (c)				Total
Years ended December 31 (millions)	2017		2016		2017		2016		2017		2016
Goods and services purchased	$	66	$	62	$	37	$	—	$	103	$	62
Employee benefits expense	26		112		10		305		36		417

	$	92	$	174	$	47	$	305	$	139	$	479

Fact Table
Network	31703 - Disclosure - property, plant and equipment (Tables) (http://www.telus.com/role/DisclosurePropertyPlantAndEquipmentTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory (label)

(millions)	Note	Network assets			Buildings and leasehold improvements			Other			Land			Assets under construction			Total
At cost
As at January 1, 2016		$	27,191		$	2,847		$	1,120		$	55		$	413		$	31,626
Additions 1		762			45			39			—			1,472			2,318
Additions arising from business acquisitions		—			1			1			—			—			2
Dispositions, retirements and other		(739		)	(78		)	(223		)	—			—			(1,040		)
Assets under construction put into service		1,070			139			84			—			(1,293		)	—

As at December 31, 2016		28,284			2,954			1,021			55			592			32,906
Additions 1		972			51			44			—			1,426			2,493
Additions arising from business acquisitions	18(b)	25			8			9			—			—			42
Dispositions, retirements and other		(1,724		)	(63		)	(48		)	(7		)	—			(1,842		)
Assets under construction put into service		1,167			127			69			—			(1,363		)	—

As at December 31, 2017		$	28,724		$	3,077		$	1,095		$	48		$	655		$	33,599

Accumulated depreciation
As at January 1, 2016		$	19,351		$	1,810		$	729		$	—		$	—		$	21,890

Depreciation		1,357			99			108			—			—			1,564
Dispositions, retirements and other		(758		)	(73		)	(181		)	—			—			(1,012		)

As at December 31, 2016		19,950			1,836			656			—			—			22,442
Depreciation		1,396			106			115			—			—			1,617
Dispositions, retirements and other		(1,708		)	(58		)	(62		)	—			—			(1,828		)

As at December 31, 2017		$	19,638		$	1,884		$	709		$	—		$	—		$	22,231

Net book value
As at December 31, 2016		$	8,334		$	1,118		$	365		$	55		$	592		$	10,464

As at December 31, 2017		$	9,086		$	1,193		$	386		$	48		$	655		$	11,368

(1)

For the year ended December 31, 2017, additions include $7 (2016 — $(40)) in respect of asset retirement obligations (see Note 25).

Fact Table
Network	31803 - Disclosure - intangible assets and goodwill (Tables) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory (label)

	Manitoba Telecom Services Inc. postpaid wireless			Kroll Computer Systems Inc.		Voxpro Limited 1		Individually immaterial transactions		Total
Assets
Current assets
Cash	$	—		$	1	$	3	$	—	$	4
Accounts receivable 2	9			3		20		—		32
Other	7			—		4		1		12

	16			4		27		1		48

Non-current assets
Property, plant and equipment
Network assets	23			—		—		2		25
Buildings and leasehold improvements	—			—		8		—		8
Other	—			1		8		—		9
Intangible assets subject to amortization 3
Customer contracts, customer relationships (including those related to customer contracts) and leasehold interests	54			26		38		16		134
Software	—			101		—		—		101

	77			128		54		18		277

Total identifiable assets acquired	93			132		81		19		325

Liabilities
Current liabilities
Accounts payable and accrued liabilities	1			1		19		—		21
Advance billings and customer deposits	2			4		—		1		7
Provisions	7			—		—		—		7

	10			5		19		1		35

Non-current liabilities
Provisions	6			3		—		—		9
Other long-term liabilities	—			—		1		—		1
Deferred income taxes	18			—		5		—		23

	24			3		6		—		33

Total liabilities assumed	34			8		25		1		68

Net identifiable assets acquired	59			124		56		18		257
Goodwill	207			126		85		15		433

Net assets acquired	$	266		$	250	$	141	$	33	$	690

Acquisition effected by way of:
Cash consideration	$	306		$	150	$	58	$	31	$	545
Accrued receivable 4	(40		)	—		—		—		(40		)
Accounts payable and accrued liabilities	—			—		—		2		2
Provisions	—			—		60		—		60
Issue of TELUS Corporation Common Shares	—			100		—		—		100
Pre-existing relationship effectively settled	—			—		23		—		23

	$	266		$	250	$	141	$	33	$	690

(1)

Prior to acquisition, we had advanced $23 to Voxpro Limited; this pre-existing relationship was effectively settled at the date of the business combination with no gain or loss recognized.

(2)

(3)

(4)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory (label)

	Intangible assets subject to amortization															Intangible assets with indefinite lives
(millions)	Customer contracts, related customer relationships and leasehold interests			Software			Access to rights-of- way and other			Assets under construction			Total			Spectrum licences		Total intangible assets			Goodwill 1			Total intangible assets and goodwill
At cost
As at January 1, 2016	$	473		$	3,801		$	90		$	216		$	4,580		$	8,480	$	13,060		$	4,125		$	17,185
Additions	—			50			4			575			629			164		793			—			793
Additions arising from business acquisitions	12			4			—			—			16			—		16			22			38
Dispositions, retirements and other (including capitalized interest (see Note 9))	—			(137		)	(3		)	—			(140		)	49		(91		)	—			(91		)
Assets under construction put into service	—			577			2			(579		)	—			—		—			—			—
Net foreign exchange differences	—			—			—			—			—			—		—			4			4

As at December 31, 2016	485			4,295			93			212			5,085			8,693		13,778			4,151			17,929
Additions	—			74			5			538			617			—		617			—			617
Additions arising from business acquisitions (b)	134			101			—			—			235			—		235			433			668
Dispositions, retirements and other	(61		)	(209		)	(1		)	—			(271		)	—		(271		)	—			(271		)
Assets under construction put into service	—			406			—			(406		)	—			—		—			—			—
Net foreign exchange differences	—			—			—			—			—			—		—			(3		)	(3		)

As at December 31, 2017	$	558		$	4,667		$	97		$	344		$	5,666		$	8,693	$	14,359		$	4,581		$	18,940

Accumulated amortization
As at January 1, 2016	$	280		$	2,739		$	56		$	—		$	3,075		$	—	$	3,075		$	364		$	3,439
Amortization	43			436			4			—			483			—		483			—			483
Dispositions, retirements and other	—			(143		)	(1		)	—			(144		)	—		(144		)	—			(144		)

As at December 31, 2016	323			3,032			59			—			3,414			—		3,414			364			3,778
Amortization	48			500			4			—			552			—		552			—			552
Dispositions, retirements and other	(61		)	(202		)	(2		)	—			(265		)	—		(265		)	—			(265		)

As at December 31, 2017	$	310		$	3,330		$	61		$	—		$	3,701		$	—	$	3,701		$	364		$	4,065

Net book value
As at December 31, 2016	$	162		$	1,263		$	34		$	212		$	1,671		$	8,693	$	10,364		$	3,787		$	14,151

As at December 31, 2017	$	248		$	1,337		$	36		$	344		$	1,965		$	8,693	$	10,658		$	4,217		$	14,875

(1)

Accumulated amortization of goodwill is amortization recorded prior to 2002; there are no accumulated impairment losses in the accumulated amortization of goodwill.

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfBusinessAcquisitionProFormaInformationTableTextBlock (label)

Year ended December 31, 2017 (millions except per share amounts)	As reported 1		Pro forma 2
Operating revenues	$	13,304	$	13,426
Net income	$	1,479	$	1,474
Net income per Common Share
Basic	$	2.46	$	2.45
Diluted	$	2.46	$	2.45

(1)

(2)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfCarryingValueIndefiniteLivedIntangibleAssetsAndGoodwillTextBlock (label)

	Intangible assets with indefinite lives				Goodwill				Total
As at December 31 (millions)	2017		2016		2017		2016		2017		2016
Wireless	$	8,693	$	8,693	$	2,860	$	2,647	$	11,553	$	11,340
Wireline	—		—		1,357		1,140		1,357		1,140

	$	8,693	$	8,693	$	4,217	$	3,787	$	12,910	$	12,480

Fact Table
Network	31903 - Disclosure - leases (Tables) (http://www.telus.com/role/DisclosureLeasesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory (label)

As at December 31 (millions)	2017						2016
Years ending	Operating leases with arm’s-length lessors 1		Operating leases with related party lessors 2		Total		Operating leases with arm’s-length lessors1		Operating leases with related party lessors 2		Total
1 year hence	$	218	$	6	$	224	$	211	$	6	$	217
2 years hence	191		12		203		192		6		198
3 years hence	169		13		182		171		12		183
4 years hence	147		13		160		147		13		160
5 years hence	122		13		135		125		13		138
Thereafter	534		208		742		599		220		819

	$	1,381	$	265	$	1,646	$	1,445	$	270	$	1,715

(1)

(2)

Fact Table
Network	32003 - Disclosure - other long-term assets (Tables) (http://www.telus.com/role/DisclosureOtherLongTermAssetsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:ScheduleOfOtherLongTermAssetsTextBlock (label)

As at December 31 (millions)	Note	2017		2016
Pension assets	15(a)	$	156	$	358
Investments		41		62
Prepaid maintenance		57		62
Real estate joint venture advances	21(c)	47		21
Real estate joint ventures	21(c)	15		30
Other		105		107

		$	421	$	640

Fact Table
Network	32103 - Disclosure - real estate joint ventures (Tables) (http://www.telus.com/role/DisclosureRealEstateJointVenturesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfConstructionCreditFacilityTextBlock (label)

As at December 31 (millions)	Note	2017		2016
Construction credit facilities commitment — TELUS Corporation
Undrawn	4(c)	$	67	$	93
Advances		47		21

		114		114
Construction credit facilities commitment — other		228		228

		$	342	$	342

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfJointVenturesInvestmentActivityExplanatoryTextBlock (label)

Years ended December 31 (millions)	2017								2016
	Loans and receivables 1		Equity 2			Total			Loans and receivables 1			Equity 2			Total
Related to real estate joint ventures’ statements of income and other comprehensive income
Comprehensive income (loss) attributable to us 3	$	—	$	2		$	2		$	—		$	33		$	33
Related to real estate joint ventures’ statements of financial position
Items not affecting currently reported cash flows
Recognition of gain initially deferred on our real estate initially contributed	—		1			1			—			8			8
Construction credit facilities financing costs charged by us and other (Note 7)	—		—			—			1			—			1
Cash flows in the current reporting period
Construction credit facilities
Amounts advanced	26		—			26			33			—			33
Amounts repaid	—		—			—			(63		)	—			(63		)
Financing costs paid to us	—		—			—			(1		)	—			(1		)
Repayment of funds advanced	—		—			—			(18		)	—			(18		)
Funds repaid to us and earnings distributed	—		(18		)	(18		)	—			(21		)	(21		)

Net increase (decrease)	26		(15		)	11			(48		)	20			(28		)
Real estate joint ventures carrying amounts
Balance, beginning of period	21		30			51			69			25			94
Valuation provision	—		—			—			—			(15		)	(15		)

Balance, end of period	$	47	$	15		$	62		$	21		$	30		$	51

(1)

(2)

We account for our interests in the real estate joint ventures using the equity method of accounting.

(3)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfRealEstateJointVenturesFinancialInformationExplanatory (label)

As at December 31 (millions)	2017		2016
ASSETS
Current assets
Cash and temporary investments, net	$	20	$	15
Escrowed deposits for tenant inducements and liens	1		5
Sales contract deposits held by arm’s-length trustee	—		2
Other	4		6
Property under development — residential condominiums (subject to sales contracts)	—		13

	25		41

Non-current assets
Property under development — investment property	194		121
Investment property	256		261

	450		382

	$	475	$	423

LIABILITIES AND OWNERS’ EQUITY
Current liabilities
Accounts payable and accrued liabilities	$	13	$	18
Sales contract deposits
Payable	—		3
Held by arm’s-length trustee	—		2
Current portion of 3.7% mortgage and senior secured 3.4% bonds	5		4
Construction holdback liabilities	10		7

	28		34

Non-current liabilities
Construction credit facilities	141		63
3.7% mortgage due September 2024	27		—
Senior secured 3.4% bonds due July 2025	208		213

	376		276

Liabilities	404		310

Owners’ equity
TELUS 1	29		48
Other partners	42		65

	71		113

	$	475	$	423

(1)

Years ended December 31 (millions)	2017			2016
Revenue
From investment property	$	34		$	34
From sale of residential condominiums	$	19		$	262
Depreciation and amortization	$	8		$	8
Interest expense 1	$	8		$	10
Net income (loss) and comprehensive income (loss) 2	$	(6	)	$	72

(1)

During the year ended December 31, 2017, the real estate joint ventures capitalized $3 (2016 — $4) of financing costs.

(2)

Fact Table
Network	32303 - Disclosure - accounts payable and accrued liabilities (Tables) (http://www.telus.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfTradeAndOtherPayables (label)

As at December 31 (millions)	2017		2016
Accrued liabilities	$	1,066	$	1,013
Payroll and other employee-related liabilities	403		460
Restricted stock units liability	66		55

	1,535		1,528
Trade accounts payable	717		578
Interest payable	147		144
Other	61		80

	$	2,460	$	2,330

Fact Table
Network	32403 - Disclosure - advance billings and customer deposits (Tables) (http://www.telus.com/role/DisclosureAdvanceBillingsAndCustomerDepositsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TabularDisclosureOfAdvanceBillingsAndCustomerDeposits (label)

As at December 31 (millions)	2017		2016
Advance billings	$	747	$	697
Deferred customer activation and connection fees	13		17
Customer deposits	21		15
Regulatory deferral accounts	1		8

	$	782	$	737

Fact Table
Network	32503 - Disclosure - provisions (Tables) (http://www.telus.com/role/DisclosureProvisionsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

Disclosure of other provisions

(millions)	Asset retirement obligation			Employee- related			Written put options			Other			Total
As at January 1, 2016	$	377		$	109		$	46		$	98		$	630
Additions 1	15			113			17			54			199
Use	(9		)	(141		)	(54		)	(41		)	(245		)
Reversal	—			(4		)	—			(8		)	(12		)
Interest effect 2	(44		)	—			1			—			(43		)
Foreign exchange effects	—			—			(10		)	—			(10		)

As at December 31, 2016	339			77			—			103			519
Additions 1	13			39			71			58			181
Use	(6		)	(75		)	—			(40		)	(121		)
Reversal 3	(53		)	(5		)	(11		)	(1		)	(70		)
Interest effect 2	58			—			2			—			60
Foreign exchange effects	—			—			1			—			1

As at December 31, 2017	$	351		$	36		$	63		$	120		$	570

Current	$	11		$	76		$	—		$	37		$	124
Non-current	328			1			—			66			395

As at December 31, 2016	$	339		$	77		$	—		$	103		$	519

Current	$	6		$	35		$	—		$	37		$	78
Non-current	345			1			63			83			492

As at December 31, 2017	$	351		$	36		$	63		$	120		$	570

(1)

Employee-related additions are net of share-based compensation of $(7) (2016 — $4).

(2)

(3)

The written put option reversal is an adjustment to the Voxpro Limited purchase price allocation disclosed in Note 18(b).

Fact Table
Network	32603 - Disclosure - long-term debt (Tables) (http://www.telus.com/role/DisclosureLongTermDebtTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Scenario [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:BorrowingsByNameMember (label)

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory (label)

As at December 31 (millions)	Note	2017		2016
TELUS Corporation notes	(b)	$	11,561	$	11,367
TELUS Corporation commercial paper	(c)	1,140		613
TELUS Communications Inc. debentures	(e)	620		619
TELUS International (Cda) Inc. credit facility	(f)	339		332

Long-term debt		$	13,660	$	12,931

Current		$	1,404	$	1,327
Non-current		12,256		11,604

Long-term debt		$	13,660	$	12,931

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusCommunicationsInc.DebenturesMember (label)

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory (label)

Principal face amount

Redemption present
value spread

Series 1

Issued

Maturity

Issue
price

Originally
issued

Outstanding at
financial
statement date

Basis points

10.65% Debentures, Series 3

June 1991

June 2021

998.00

175 million

N/A (non-redeemable)

9.65% Debentures, Series 5 2

April 1992

April 2022

972.00

150 million

249 million

N/A (non-redeemable)

8.80% Debentures, Series B

September 1995

September 2025

995.10

200 million

15 3

(1)

Interest is payable semi-annually.

(2)

(3)

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusCorporationCreditFacilityMember (label)

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory (label)

As at December 31 (millions)	2017		2016
Net available	$	1,110	$	1,637
Backstop of commercial paper	1,140		613

Gross available	$	2,250	$	2,250

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusCorporationNotesMember (label)

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory (label)

							Principal face amount				Redemption present value spread
Series 1	Issued	Maturity	Issue price		Effective interest rate 2		Originally issued		Outstanding at financial statement date		Basis points	Cessation date
4.95% Notes, Series CD	March 2007	March 2017	$	999.53	4.96	%	$	700 million	$	NIL	24 3	N/A
5.05% Notes, Series CG 4	December 2009	December 2019	$	994.19	5.13	%	$	1.0 billion	$	1.0 billion	45.5 3	N/A
5.05% Notes, Series CH 4	July 2010	July 2020	$	997.44	5.08	%	$	1.0 billion	$	1.0 billion	47 3	N/A
3.35% Notes, Series CJ 4	December 2012	March 2023	$	998.83	3.36	%	$	500 million	$	500 million	40 5	Dec. 15, 2022
3.35% Notes, Series CK 4	April 2013	April 2024	$	994.35	3.41	%	$	1.1 billion	$	1.1 billion	36 5	Jan. 2, 2024
4.40% Notes, Series CL 4	April 2013	April 2043	$	997.68	4.41	%	$	600 million	$	600 million	47 5	Oct. 1, 2042
3.60% Notes, Series CM 4	November 2013	January 2021	$	997.15	3.65	%	$	400 million	$	400 million	35 3	N/A
5.15% Notes, Series CN 4	November 2013	November 2043	$	995.00	5.18	%	$	400 million	$	400 million	50 5	May 26, 2043
3.20% Notes, Series CO 4	April 2014	April 2021	$	997.39	3.24	%	$	500 million	$	500 million	30 5	Mar. 5, 2021
4.85% Notes, Series CP 4	Multiple 6	April 2044	$	987.91 6	4.93	% 6	$	500 million 6	$	900 million 6	46 5	Oct. 5, 2043
3.75% Notes, Series CQ 4	September 2014	January 2025	$	997.75	3.78	%	$	800 million	$	800 million	38.5 5	Oct. 17, 2024
4.75% Notes, Series CR 4	September 2014	January 2045	$	992.91	4.80	%	$	400 million	$	400 million	51.5 5	July 17, 2044
1.50% Notes, Series CS 4	March 2015	March 2018	$	999.62	1.51	%	$	250 million	$	250 million	N/A 7	N/A
2.35% Notes, Series CT 4	March 2015	March 2022	$	997.31	2.39	%	$	1.0 billion	$	1.0 billion	35.5 5	Feb. 28, 2022
4.40% Notes, Series CU 4	March 2015	January 2046	$	999.72	4.40	%	$	500 million	$	500 million	60.5 5	July 29, 2045
3.75% Notes, Series CV 4	December 2015	March 2026	$	992.14	3.84	%	$	600 million	$	600 million	53.5 5	Dec. 10, 2025
2.80% U.S. Dollar Notes 4, 8	September 2016	February 2027	US$991.89		2.89	%	US$600 million		US$600 million		20 9	Nov. 16, 2026
3.70% U.S. Dollar Notes 4, 10	March 2017	September 2027	US$998.95		3.71	%	US$500 million		US$500 million		20 9	June 15, 2027
4.70% Notes, Series CW 4	March 2017	March 2048	$	990.65	4.76	%	$	325 million	$	325 million	58.5 5	Sept. 6, 2047

(1)

Interest is payable semi-annually.

(2)

The effective interest rate is that which the notes would yield to an initial debt holder if held to maturity.

(3)

(4)

(5)

(6)

(7)

The notes are not redeemable at our option, other than in the event of certain changes in tax laws.

(8)

(9)

At any time prior to the respective maturity dates set out in the table, the notes are redeemable at our option, in whole at any time, or in part from time to time, on not fewer than 30 and not more than 60 days’ prior notice. The redemption price is equal to the greater of (i) the present value of the notes discounted at the U.S. Adjusted Treasury Rate plus the redemption present value spread calculated over the period to the redemption present value spread cessation date, or (ii) 100% of the principal amount thereof. In addition, accrued and unpaid interest, if any, will be paid to the date fixed for redemption. On or after the respective redemption present value spread cessation dates set out in the table, the notes are redeemable at our option, in whole but not in part, on not fewer than 30 and not more than 60 days’ prior notice, at redemption prices equal to 100% of the principal amounts thereof.

(10)

We have entered into a foreign exchange derivative (a cross currency interest rate exchange agreement) which effectively converted the principal payments and interest obligations to Canadian dollar obligations with a fixed interest rate of 3.41% and an issued and outstanding amount of $667 million (reflecting a fixed exchange rate of $1.3348).

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:TelusInternationalCdaInc.CreditFacilityMember (label)

ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory (label)

As at December 31 (millions)	2017						2016
	Revolving component		Term loan component		Total		Revolving component		Term loan component		Total
Available	US$	193	US$	N/A	US$	193	US$	72	US$	N/A	US$	72
Outstanding		157		119		276		43		210		253

	US$	350	US$	119	US$	469	US$	115	US$	210	US$	325

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:BorrowingsByNameMember (label)

tu:DisclosureOfDetailedInformationAboutLongTermDebtMaturitiesTableTextBlock (label)

Long-term debt denominated in	Canadian dollars		U.S. dollars
					Derivative liability
Years ending December 31 (millions)	Debt		Debt		(Receive) 1			Pay		Total		Total
2018	$	250	$	1,147	$	(1,144	)	$	1,160	$	1,163	$	1,413
2019	1,000		8		—			—		8		1,008
2020	1,000		8		—			—		8		1,008
2021	1,075		8		—			—		8		1,083
2022	1,249		316		—			—		316		1,565
Thereafter	6,325		1,380		(1,380		)	1,460		1,460		7,785

Future cash outflows in respect of long-term debt principal repayments	10,899		2,867		(2,524		)	2,620		2,963		13,862
Future cash outflows in respect of associated interest and like carrying costs 2	5,506		490		(431		)	449		508		6,014

Undiscounted contractual maturities (Note 4(c))	$	16,405	$	3,357	$	(2,955	)	$	3,069	$	3,471	$	19,876

(1)

Where applicable, principal-related cash flows reflect foreign exchange rates at December 31, 2017.

(2)

Fact Table
Network	32703 - Disclosure - other long-term liabilities (Tables) (http://www.telus.com/role/DisclosureOtherLongTermLiabilitiesTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory (label)

As at December 31 (millions)	Note	2017		2016
Pension and other post-employment benefit liabilities	15(a)	$	537	$	484
Deferred revenues		81		72
Restricted stock unit and deferred share unit liabilities		68		62
Derivative liabilities		76		21
Other		67		73

		829		712
Deferred customer activation and connection fees		18		24

		$	847	$	736

Fact Table
Network	32803 - Disclosure - Common Share capital (Tables) (http://www.telus.com/role/DisclosureCommonShareCapitalTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory (label)

As at December 31	2017	2016
First Preferred Shares	1 billion	1 billion
Second Preferred Shares	1 billion	1 billion
Common Shares	2 billion	2 billion

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfPurchaseOfCommonSharesForCancellationTableTextBlock (label)

	2016
Year ended December 31 (millions except footnote amounts)	Common Shares	Cost
Normal course issuer bid period:
September 15, 2015 — September 14, 2016	3	$	130
September 30, 2016 — September 29, 2017 1	1	35

Total excluding employee benefit plan trust transactions	4	165
Employee benefit plan trust transactions	—	4

	4	$	169

(1)

Fact Table
Network	33003 - Disclosure - related party transactions (Tables) (http://www.telus.com/role/DisclosureRelatedPartyTransactionsTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory (label)

Years ended December 31 (millions)	2017		2016
Short-term benefits	$	12	$	12
Post-employment pension 1 and other benefits	4		7
Share-based compensation 2	34		35

	$	50	$	54

(1)

(2)

Years ended December 31	2017					2016
($ in millions)	Number of restricted stock units	Notional value 1		Grant-date fair value 1		Number of restricted stock units	Notional value 1		Grant-date fair value 1
Awarded in period	686,595	$	30	$	30	585,759	$	23	$	15

(1)

As at December 31 (millions)	2017		2016
Restricted stock units	$	40	$	25
Deferred share units 1	24		32

	$	64	$	57

(1)

Fact Table
Network	33103 - Disclosure - additional statement of cash flow information (Tables) (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformationTables)
Table	(implied)

Reporting Entity [Axis]

Period [Axis]

Concept

Fact Value

Unit

Rounding

Parenthetical Explanations

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDetailedInformationAboutChangesInLiabilitiesArisingFromFinancingActivitiesTextBlock (label)

				Year ended December 31, 2016														Year ended December 31, 2017
				Statement of cash flows						Non-cash changes								Statement of cash flows						Non-cash changes
(millions)	As at January 1, 2016			Issued or received			Redemptions, repayments or payments			Foreign exchange movement (Note 4(i))			Other			As at December 31, 2016		Issued or received			Redemptions, repayments or payments			Foreign exchange movement (Note 4(i))			Other			As at December 31, 2017
Dividends payable to holders of Common Shares	$	263		$	—		$	(1,070	)	$	—		$	1,091		$	284	$	—		$	(1,152	)	$	—		$	1,167		$	299
Dividends reinvested in shares from Treasury	—			—			—			—			—			—		—			70			—			(70		)	—

	$	263		$	—		$	(1,070	)	$	—		$	1,091		$	284	$	—		$	(1,082	)	$	—		$	1,097		$	299

Purchase of Common Shares for cancellation 1	$	10		$	—		$	(179	)	$	—		$	169		$	—	$	—		$	—		$	—		$	—		$	—

Short-term borrowings	$	100		$	3		$	(3	)	$	—		$	—		$	100	$	—		$	—		$	—		$	—		$	100

Long-term debt
TELUS Corporation notes	$	11,164		$	785		$	(600	)	$	19		$	(1	)	$	11,367	$	990		$	(700	)	$	(91	)	$	(5	)	$	11,561
TELUS Corporation commercial paper	256			4,568			(4,181		)	(30		)	—			613		5,295			(4,710		)	(58		)	—			1,140
TELUS Communications Inc. debentures	618			—			—			—			1			619		—			—			—			1			620
TELUS International (Cda) Inc. credit facility	—			373			(42		)	9			(8		)	332		82			(56		)	(20		)	1			339
Derivatives used to manage currency risk arising from U.S. dollar-denominated long-term debt — liability (asset)	(14		)	4,181			(4,201		)	11			43			20		4,710			(4,746		)	149			(40		)	93

	12,024			9,907			(9,024		)	9			35			12,951		11,077			(10,212		)	(20		)	(43		)	13,753
To eliminate effect of gross settlement of derivatives used to manage currency risk arising from U.S. dollar-denominated long-term debt	—			(4,181		)	4,181			—			—			—		(4,710		)	4,710			—			—			—

	$	12,024		$	5,726		$	(4,843	)	$	9		$	35		$	12,951	$	6,367		$	(5,502	)	$	(20	)	$	(43	)	$	13,753

Issue of shares by subsidiary to non-controlling interest
Gross proceeds on share issuance				$	302		$	—		$	—		$	(302	)	$	—	$	—		$	—		$	—		$	—		$	—
Transaction costs				—			(8		)	—			12			4		—			(1		)	—			—			3
Income taxes charged directly to contributed surplus 2				—			—			—			47			47		—			—			—			(3		)	44

				302			(8		)	—			(243		)	51		—			(1		)	—			(3		)	47
To eliminate effect of gross settlement of transaction costs				(8		)	8			—			—			—		—			—			—			—			—

				$	294		$	—		$	—		$	(243	)	$	51	$	—		$	(1	)	$	—		$	(3	)	$	47

(1)

Normal course issuer bid transactions, including employee benefit plan trust transactions (see Note 28(b)).

(2)

Income taxes charged directly to contributed surplus were comprised of a current income tax charge of $(3) (2016 — $50) and a deferred income tax recovery of $NIL (2016 — $3).

0000868675 (http://www.sec.gov/CIK)

2017-01-01 to 2017-12-31

tu:DisclosureOfDetailedInformationAboutOperatingActivitiesAndInvestingActivitiesTextBlock (label)

Years ended December 31 (millions)	Note	2017			2016
Net change in non-cash operating working capital
Accounts receivable		$	(70	)	$	(45	)
Inventories		(60		)	42
Prepaid expenses		(27		)	(20		)
Accounts payable and accrued liabilities		126			126
Income and other taxes receivable and payable, net		(90		)	(128		)
Advance billings and customer deposits		38			(28		)
Provisions		(59		)	(18		)

		$	(142	)	$	(71	)

Cash payments for capital assets, excluding spectrum licences
Capital asset additions, excluding spectrum licences
Gross capital expenditures
Property, plant and equipment	17	$	(2,486	)	$	(2,358	)
Intangible assets	18	(617		)	(629		)

		(3,103		)	(2,987		)
Additions arising from non-monetary transactions		9			19

Capital expenditures		(3,094		)	(2,968		)
Asset retirement obligations netted (included) in additions		(7		)	40

		(3,101		)	(2,928		)
Other non-cash items included above
Change in associated non-cash investing working capital		(27		)	231
Non-cash change in asset retirement obligation		47			(55		)

		20			176

		$	(3,081	)	$	(2,752	)

Fact Table
Network	40101 - Disclosure - summary of significant accounting policies - Other (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesOtherDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RangesMember (label) * ifrs-full:EntitysTotalForSubsidiariesMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	243000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RangesMember (label) * tu:TelusInternationalCdaIncMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	302000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RangesMember (label) * tu:TelusCommunicationIncMember (label)	ifrs-full:ProportionOfOwnershipInterestInSubsidiary (label)	1.0	xbrli:pure	2
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:EntitysTotalForSubsidiariesMember (label)	tu:DeferralAccountLiabilityAmortizationPeriod (label)	_3471872
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:EntitysTotalForSubsidiariesMember (label)	tu:DirectExpensesAsPercentageOfOperatingExpensesIncludedInSegmentPerformanceMeasure (label)	0.5	xbrli:pure	2
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RangesMember (label) * tu:TelusInternationalCdaIncMember (label)	tu:NonControllingInterestPercent (label)	0.35	xbrli:pure	2
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RangesMember (label) * tu:TelusInternationalCdaIncMember (label)	tu:PercentOfNetBookValue (label)	0.35	xbrli:pure	2
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RangesMember (label) * ifrs-full:EntitysTotalForSubsidiariesMember (label)	tu:PercentageRevenueFromMultipleElementArrangements (label)	0.667	xbrli:pure	3

Fact Table
Network	40102 - Disclosure - summary of significant accounting policies - Useful lives property, plant and equipment (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesUsefulLivesPropertyPlantAndEquipmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:PropertyPlantAndEquipmentMember (label)	tu:CompositeDepreciationRate (label)	0.05	xbrli:pure	3
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:PropertyPlantAndEquipmentMember (label)	tu:CompositeDepreciationRate (label)	0.05	xbrli:pure	3
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ComputerEquipmentMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3463810
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ComputerEquipmentMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3464448
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPropertyPlantAndEquipmentMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3465086
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPropertyPlantAndEquipmentMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3465724
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:InsidePlantMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3466362
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:InsidePlantMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3467000
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OutsidePlantMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3467638
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OutsidePlantMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesPropertyPlantAndEquipment (label)	_3468276

Fact Table
Network	40103 - Disclosure - summary of significant accounting policies - Useful lives intangible assets (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesUsefulLivesIntangibleAssetsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ComputerSoftwareMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3457100
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ComputerSoftwareMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3457740
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CustomerrelatedIntangibleAssetsMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3458380
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CustomerrelatedIntangibleAssetsMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3459020
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherIntangibleAssetsMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3459660
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherIntangibleAssetsMember (label) * ifrs-full:TopOfRangeMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3460300
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WirelineSubscriberBaseMember (label)	tu:UsefulLivesIntangibleAssetsOtherThanGoodwill (label)	_3460916

Fact Table
Network	40104 - Disclosure - summary of significant accounting policies - Inventories (Details) (http://www.telus.com/role/DisclosureSummaryOfSignificantAccountingPoliciesInventoriesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CostOfSales (label)	1840000000	iso4217:CAD	-7
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CostOfSales (label)	1950000000	iso4217:CAD	-7
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:InventoryWirelessHandsetsPartsAccessories (label)	266000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:InventoryWirelessHandsetsPartsAccessories (label)	320000000	iso4217:CAD	-6

Fact Table
Network	40201 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statements of income and other comprehensive income (Details) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsImpactsOfApplicationOfIfrs15ConsolidatedStatementsOfIncomeAndOtherComprehensiveIncomeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	600000000	iso4217:CAD	-8
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:BasicEarningsLossPerShare (label)	2.06	iso4217:CAD/xbrli:shares	2
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:BasicEarningsLossPerShare (label)	2.46	iso4217:CAD/xbrli:shares	2
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:BasicEarningsLossPerShare (label)	0.15	iso4217:CAD/xbrli:shares	2
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:BasicEarningsLossPerShare (label)	0.11	iso4217:CAD/xbrli:shares	2
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:BasicEarningsLossPerShare (label)	0.04	iso4217:CAD/xbrli:shares	2
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:BasicEarningsLossPerShare (label)	2.61	iso4217:CAD/xbrli:shares	2
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ComprehensiveIncome (label)	1221000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ComprehensiveIncome (label)	1320000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ComprehensiveIncome (label)	100000000	iso4217:CAD	-8
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ComprehensiveIncome (label)	1400000000	iso4217:CAD	-8
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)	15000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)	23000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests (label)	100000000	iso4217:CAD	-8
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1206000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1297000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	100000000	iso4217:CAD	-8
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1400000000	iso4217:CAD	-8
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1564000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1617000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1600000000	iso4217:CAD	-8
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:DilutedEarningsLossPerShare (label)	2.06	iso4217:CAD/xbrli:shares	2
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:DilutedEarningsLossPerShare (label)	2.46	iso4217:CAD/xbrli:shares	2
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:DilutedEarningsLossPerShare (label)	0.15	iso4217:CAD/xbrli:shares	2
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:DilutedEarningsLossPerShare (label)	0.11	iso4217:CAD/xbrli:shares	2
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:DilutedEarningsLossPerShare (label)	0.04	iso4217:CAD/xbrli:shares	2
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:DilutedEarningsLossPerShare (label)	2.61	iso4217:CAD/xbrli:shares	2
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	2939000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	2595000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:EmployeeBenefitsExpense (label)	100000000	iso4217:CAD	-8
33	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	100000000	iso4217:CAD	-8
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:EmployeeBenefitsExpense (label)	2600000000	iso4217:CAD	-8
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:FinanceCosts (label)	520000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:FinanceCosts (label)	573000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:FinanceCosts (label)	600000000	iso4217:CAD	-8
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	426000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	553000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	100000000	iso4217:CAD	-8
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:AllocationOfTransactionPriceMember (label)	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	100000000	iso4217:CAD	-8
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	100000000	iso4217:CAD	-8
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	500000000	iso4217:CAD	-8
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:OperatingExpense (label)	10617000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:OperatingExpense (label)	10699000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:OperatingExpense (label)	100000000	iso4217:CAD	-8
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OperatingExpense (label)	10700000000	iso4217:CAD	-8
48	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-15000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-159000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherComprehensiveIncome (label)	-200000000	iso4217:CAD	-8
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:OtherRevenue (label)	74000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:OtherRevenue (label)	102000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherRevenue (label)	100000000	iso4217:CAD	-8
54	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ProfitLoss (label)	100000000	iso4217:CAD	-8
57	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ProfitLoss (label)	1600000000	iso4217:CAD	-8
58	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)	13000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)	19000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ProfitLossAttributableToNoncontrollingInterests (label)	100000000	iso4217:CAD	-8
61	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1223000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1460000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	100000000	iso4217:CAD	-8
64	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	100000000	iso4217:CAD	-8
65	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	100000000	iso4217:CAD	-8
66	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1600000000	iso4217:CAD	-8
67	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossBeforeTax (label)	1662000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossBeforeTax (label)	2032000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ProfitLossBeforeTax (label)	100000000	iso4217:CAD	-8
70	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ProfitLossBeforeTax (label)	2100000000	iso4217:CAD	-8
71	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossFromOperatingActivities (label)	2182000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:ProfitLossFromOperatingActivities (label)	2605000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ProfitLossFromOperatingActivities (label)	100000000	iso4217:CAD	-8
74	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ProfitLossFromOperatingActivities (label)	2700000000	iso4217:CAD	-8
75	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:Revenue (label)	12799000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:Revenue (label)	13304000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Revenue (label)	100000000	iso4217:CAD	-8
78	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Revenue (label)	13400000000	iso4217:CAD	-8
79	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	12725000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	13202000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	100000000	iso4217:CAD	-8
82	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	13300000000	iso4217:CAD	-8
83	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12000000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12478000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	-1200000000	iso4217:CAD	-8
86	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	-1200000000	iso4217:CAD	-8
87	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	11300000000	iso4217:CAD	-8
88	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	725000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	724000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:RevenueFromSaleOfGoods (label)	1300000000	iso4217:CAD	-8
91	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	1300000000	iso4217:CAD	-8
92	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:RevenueFromSaleOfGoods (label)	2000000000	iso4217:CAD	-8
93	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:RestatedMember (label)	tu:GoodsAndServicesPurchased (label)	5631000000	iso4217:CAD	-6
94	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:RestatedMember (label)	tu:GoodsAndServicesPurchased (label)	5935000000	iso4217:CAD	-6
95	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	tu:GoodsAndServicesPurchased (label)	100000000	iso4217:CAD	-8
96	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:AllocationOfTransactionPriceMember (label)	tu:GoodsAndServicesPurchased (label)	100000000	iso4217:CAD	-8
97	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	tu:GoodsAndServicesPurchased (label)	100000000	iso4217:CAD	-8
98	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	tu:GoodsAndServicesPurchased (label)	5900000000	iso4217:CAD	-8

Fact Table
Network	40202 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statements of financial position (Details) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsImpactsOfApplicationOfIfrs15ConsolidatedStatementsOfFinancialPositionDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Assets (label)	27729000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Assets (label)	29548000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Assets (label)	1500000000	iso4217:CAD	-8
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Assets (label)	31000000000	iso4217:CAD	-8
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Assets (label)	27700000000	iso4217:CAD	-8
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Assets (label)	1300000000	iso4217:CAD	-8
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Assets (label)	29000000000	iso4217:CAD	-8
8	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:CashAndCashEquivalents (label)	223000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CashAndCashEquivalents (label)	432000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CashAndCashEquivalents (label)	509000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CashAndCashEquivalents (label)	500000000	iso4217:CAD	-8
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CashAndCashEquivalents (label)	400000000	iso4217:CAD	-8
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CashAndCashEquivalents (label)	400000000	iso4217:CAD	-8
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentAssets (label)	2474000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentAssets (label)	2884000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentAssets (label)	1000000000	iso4217:CAD	-8
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentAssets (label)	3900000000	iso4217:CAD	-8
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentAssets (label)	2400000000	iso4217:CAD	-8
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentAssets (label)	900000000	iso4217:CAD	-8
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentAssets (label)	3300000000	iso4217:CAD	-8
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentContractAssets (label)	800000000	iso4217:CAD	-8
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:CurrentContractAssets (label)	800000000	iso4217:CAD	-8
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentContractAssets (label)	800000000	iso4217:CAD	-8
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentContractAssets (label)	700000000	iso4217:CAD	-8
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:CurrentContractAssets (label)	700000000	iso4217:CAD	-8
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentContractAssets (label)	700000000	iso4217:CAD	-8
27	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentDividendPayables (label)	284000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentDividendPayables (label)	299000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentDividendPayables (label)	300000000	iso4217:CAD	-8
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentDividendPayables (label)	300000000	iso4217:CAD	-8
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentDividendPayables (label)	300000000	iso4217:CAD	-8
32	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentLiabilities (label)	4951000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentLiabilities (label)	5190000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentLiabilities (label)	-100000000	iso4217:CAD	-8
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentLiabilities (label)	5000000000	iso4217:CAD	-8
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentLiabilities (label)	5000000000	iso4217:CAD	-8
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentLiabilities (label)	-200000000	iso4217:CAD	-8
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentLiabilities (label)	4800000000	iso4217:CAD	-8
39	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1327000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1404000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1400000000	iso4217:CAD	-8
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1300000000	iso4217:CAD	-8
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1300000000	iso4217:CAD	-8
44	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentPrepayments (label)	233000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentPrepayments (label)	260000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentPrepayments (label)	200000000	iso4217:CAD	-8
47	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:CurrentPrepayments (label)	200000000	iso4217:CAD	-8
48	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentPrepayments (label)	500000000	iso4217:CAD	-8
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentPrepayments (label)	200000000	iso4217:CAD	-8
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:CurrentPrepayments (label)	200000000	iso4217:CAD	-8
51	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:CurrentPrepayments (label)	200000000	iso4217:CAD	-8
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentPrepayments (label)	400000000	iso4217:CAD	-8
53	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentProvisions (label)	124000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentProvisions (label)	78000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentProvisions (label)	100000000	iso4217:CAD	-8
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentProvisions (label)	100000000	iso4217:CAD	-8
57	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentProvisions (label)	100000000	iso4217:CAD	-8
58	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentTaxAssetsCurrent (label)	9000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentTaxAssetsCurrent (label)	96000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CurrentTaxAssetsCurrent (label)	100000000	iso4217:CAD	-8
61	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:DeferredTaxLiabilities (label)	2107000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:DeferredTaxLiabilities (label)	2500000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:DeferredTaxLiabilities (label)	400000000	iso4217:CAD	-8
64	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:DeferredTaxLiabilities (label)	300000000	iso4217:CAD	-8
65	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:DeferredTaxLiabilities (label)	100000000	iso4217:CAD	-8
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:DeferredTaxLiabilities (label)	2900000000	iso4217:CAD	-8
67	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:DeferredTaxLiabilities (label)	2100000000	iso4217:CAD	-8
68	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:DeferredTaxLiabilities (label)	400000000	iso4217:CAD	-8
69	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:DeferredTaxLiabilities (label)	300000000	iso4217:CAD	-8
70	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:DeferredTaxLiabilities (label)	100000000	iso4217:CAD	-8
71	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:DeferredTaxLiabilities (label)	2500000000	iso4217:CAD	-8
72	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:Equity (label)	7672000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Equity (label)	7936000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Equity (label)	8263000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Equity (label)	1200000000	iso4217:CAD	-8
76	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:Equity (label)	1000000000	iso4217:CAD	-8
77	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:Equity (label)	200000000	iso4217:CAD	-8
78	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Equity (label)	9500000000	iso4217:CAD	-8
79	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Equity (label)	7900000000	iso4217:CAD	-8
80	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Equity (label)	1100000000	iso4217:CAD	-8
81	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:Equity (label)	900000000	iso4217:CAD	-8
82	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:Equity (label)	200000000	iso4217:CAD	-8
83	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Equity (label)	9000000000	iso4217:CAD	-8
84	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:EquityAndLiabilities (label)	27729000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:EquityAndLiabilities (label)	29548000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:EquityAndLiabilities (label)	1500000000	iso4217:CAD	-8
87	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:EquityAndLiabilities (label)	31000000000	iso4217:CAD	-8
88	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:EquityAndLiabilities (label)	27700000000	iso4217:CAD	-8
89	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:EquityAndLiabilities (label)	1300000000	iso4217:CAD	-8
90	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:EquityAndLiabilities (label)	29000000000	iso4217:CAD	-8
91	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Goodwill (label)	3787000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Goodwill (label)	4217000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Goodwill (label)	4200000000	iso4217:CAD	-8
94	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Goodwill (label)	3800000000	iso4217:CAD	-8
95	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Goodwill (label)	3800000000	iso4217:CAD	-8
96	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10364000000	iso4217:CAD	-6
97	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10658000000	iso4217:CAD	-6
98	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10600000000	iso4217:CAD	-8
99	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10400000000	iso4217:CAD	-8
100	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:IntangibleAssetsOtherThanGoodwill (label)	10400000000	iso4217:CAD	-8
101	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Liabilities (label)	19793000000	iso4217:CAD	-6
102	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Liabilities (label)	21285000000	iso4217:CAD	-6
103	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Liabilities (label)	300000000	iso4217:CAD	-8
104	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Liabilities (label)	21500000000	iso4217:CAD	-8
105	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Liabilities (label)	19800000000	iso4217:CAD	-8
106	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Liabilities (label)	200000000	iso4217:CAD	-8
107	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Liabilities (label)	20000000000	iso4217:CAD	-8
108	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:LongtermBorrowings (label)	11604000000	iso4217:CAD	-6
109	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:LongtermBorrowings (label)	12256000000	iso4217:CAD	-6
110	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:LongtermBorrowings (label)	12300000000	iso4217:CAD	-8
111	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:LongtermBorrowings (label)	11600000000	iso4217:CAD	-8
112	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:LongtermBorrowings (label)	11600000000	iso4217:CAD	-8
113	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:Merchandise (label)	318000000	iso4217:CAD	-6
114	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:Merchandise (label)	378000000	iso4217:CAD	-6
115	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Merchandise (label)	100000000	iso4217:CAD	-8
116	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:AllocationOfTransactionPriceMember (label)	ifrs-full:Merchandise (label)	100000000	iso4217:CAD	-8
117	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Merchandise (label)	400000000	iso4217:CAD	-8
118	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:Merchandise (label)	300000000	iso4217:CAD	-8
119	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:Merchandise (label)	100000000	iso4217:CAD	-8
120	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:TopOfRangeMember (label) * tu:AllocationOfTransactionPriceMember (label)	ifrs-full:Merchandise (label)	100000000	iso4217:CAD	-8
121	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:Merchandise (label)	300000000	iso4217:CAD	-8
122	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentAssets (label)	25255000000	iso4217:CAD	-6
123	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentAssets (label)	26664000000	iso4217:CAD	-6
124	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:NoncurrentAssets (label)	500000000	iso4217:CAD	-8
125	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentAssets (label)	27100000000	iso4217:CAD	-8
126	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:NoncurrentAssets (label)	25300000000	iso4217:CAD	-8
127	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:NoncurrentAssets (label)	400000000	iso4217:CAD	-8
128	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentAssets (label)	25700000000	iso4217:CAD	-8
129	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:NoncurrentContractAssets (label)	400000000	iso4217:CAD	-8
130	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:NoncurrentContractAssets (label)	400000000	iso4217:CAD	-8
131	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentContractAssets (label)	400000000	iso4217:CAD	-8
132	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:NoncurrentContractAssets (label)	300000000	iso4217:CAD	-8
133	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:AllocationOfTransactionPriceMember (label)	ifrs-full:NoncurrentContractAssets (label)	300000000	iso4217:CAD	-8
134	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentContractAssets (label)	300000000	iso4217:CAD	-8
135	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentLiabilities (label)	14842000000	iso4217:CAD	-6
136	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentLiabilities (label)	16095000000	iso4217:CAD	-6
137	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:NoncurrentLiabilities (label)	400000000	iso4217:CAD	-8
138	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentLiabilities (label)	16500000000	iso4217:CAD	-8
139	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:NoncurrentLiabilities (label)	14800000000	iso4217:CAD	-8
140	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:NoncurrentLiabilities (label)	400000000	iso4217:CAD	-8
141	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentLiabilities (label)	15200000000	iso4217:CAD	-8
142	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentProvisions (label)	395000000	iso4217:CAD	-6
143	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentProvisions (label)	492000000	iso4217:CAD	-6
144	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentProvisions (label)	500000000	iso4217:CAD	-8
145	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:NoncurrentProvisions (label)	400000000	iso4217:CAD	-8
146	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:NoncurrentProvisions (label)	400000000	iso4217:CAD	-8
147	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherNoncurrentAssets (label)	640000000	iso4217:CAD	-6
148	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherNoncurrentAssets (label)	421000000	iso4217:CAD	-6
149	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:OtherNoncurrentAssets (label)	100000000	iso4217:CAD	-8
150	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:OtherNoncurrentAssets (label)	100000000	iso4217:CAD	-8
151	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherNoncurrentAssets (label)	500000000	iso4217:CAD	-8
152	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:OtherNoncurrentAssets (label)	600000000	iso4217:CAD	-8
153	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:OtherNoncurrentAssets (label)	100000000	iso4217:CAD	-8
154	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:CostsIncurredToObtainOrFulfillContractWithCustomerMember (label)	ifrs-full:OtherNoncurrentAssets (label)	100000000	iso4217:CAD	-8
155	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherNoncurrentAssets (label)	700000000	iso4217:CAD	-8
156	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherNoncurrentLiabilities (label)	736000000	iso4217:CAD	-6
157	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherNoncurrentLiabilities (label)	847000000	iso4217:CAD	-6
158	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherNoncurrentLiabilities (label)	800000000	iso4217:CAD	-8
159	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:OtherNoncurrentLiabilities (label)	700000000	iso4217:CAD	-8
160	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherNoncurrentLiabilities (label)	700000000	iso4217:CAD	-8
161	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:PropertyPlantAndEquipment (label)	10464000000	iso4217:CAD	-6
162	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:PropertyPlantAndEquipment (label)	11368000000	iso4217:CAD	-6
163	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:PropertyPlantAndEquipment (label)	11400000000	iso4217:CAD	-8
164	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:PropertyPlantAndEquipment (label)	10500000000	iso4217:CAD	-8
165	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:PropertyPlantAndEquipment (label)	10500000000	iso4217:CAD	-8
166	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
167	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
168	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-8
169	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-8
170	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-8
171	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2330000000	iso4217:CAD	-6
172	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2460000000	iso4217:CAD	-6
173	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	2400000000	iso4217:CAD	-8
174	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2400000000	iso4217:CAD	-8
175	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	2400000000	iso4217:CAD	-8
176	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1471000000	iso4217:CAD	-6
177	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1623000000	iso4217:CAD	-6
178	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:TradeAndOtherCurrentReceivables (label)	100000000	iso4217:CAD	-8
179	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:AllocationOfTransactionPriceMember (label)	ifrs-full:TradeAndOtherCurrentReceivables (label)	100000000	iso4217:CAD	-8
180	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:TradeAndOtherCurrentReceivables (label)	1600000000	iso4217:CAD	-8
181	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1500000000	iso4217:CAD	-8
182	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:TradeAndOtherCurrentReceivables (label)	100000000	iso4217:CAD	-8
183	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:TopOfRangeMember (label) * tu:AllocationOfTransactionPriceMember (label)	ifrs-full:TradeAndOtherCurrentReceivables (label)	100000000	iso4217:CAD	-8
184	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:TradeAndOtherCurrentReceivables (label)	1500000000	iso4217:CAD	-8
185	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AdvanceBillingsAndCustomerDeposits (label)	737000000	iso4217:CAD	-6
186	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AdvanceBillingsAndCustomerDeposits (label)	782000000	iso4217:CAD	-6
187	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	tu:AdvanceBillingsAndCustomerDeposits (label)	-100000000	iso4217:CAD	-8
188	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AllocationOfTransactionPriceMember (label)	tu:AdvanceBillingsAndCustomerDeposits (label)	-100000000	iso4217:CAD	-8
189	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	tu:AdvanceBillingsAndCustomerDeposits (label)	700000000	iso4217:CAD	-8
190	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	tu:AdvanceBillingsAndCustomerDeposits (label)	800000000	iso4217:CAD	-8
191	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	tu:AdvanceBillingsAndCustomerDeposits (label)	-200000000	iso4217:CAD	-8
192	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:AllocationOfTransactionPriceMember (label)	tu:AdvanceBillingsAndCustomerDeposits (label)	-200000000	iso4217:CAD	-8
193	0000868675 (http://www.sec.gov/CIK)	2017-01-01	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	tu:AdvanceBillingsAndCustomerDeposits (label)	600000000	iso4217:CAD	-8

Fact Table
Network	40203 - Disclosure - accounting policy developments - Impacts of application of IFRS 15, Consolidated statement of cash flows (Details) (http://www.telus.com/role/DisclosureAccountingPolicyDevelopmentsImpactsOfApplicationOfIfrs15ConsolidatedStatementOfCashFlowsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	-42000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	430000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	100000000	iso4217:CAD	-8
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:AdjustmentsForDeferredTaxExpense (label)	400000000	iso4217:CAD	-8
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense (label)	2047000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense (label)	2169000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense (label)	2200000000	iso4217:CAD	-8
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CashFlowsFromUsedInOperatingActivities (label)	3219000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CashFlowsFromUsedInOperatingActivities (label)	3947000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:CashFlowsFromUsedInOperatingActivities (label)	3900000000	iso4217:CAD	-8
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncreaseDecreaseInWorkingCapital (label)	71000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncreaseDecreaseInWorkingCapital (label)	142000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:IncreaseDecreaseInWorkingCapital (label)	100000000	iso4217:CAD	-8
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:IncreaseDecreaseInWorkingCapital (label)	200000000	iso4217:CAD	-8
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)	29000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)	-21000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)	100000000	iso4217:CAD	-8
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:OtherAdjustmentsToReconcileProfitLoss (label)	-100000000	iso4217:CAD	-8
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees (label)	71000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees (label)	67000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:PaymentsToSuppliersForGoodsAndServicesAndToAndOnBehalfOfEmployees (label)	100000000	iso4217:CAD	-8
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member (label)	ifrs-full:ProfitLoss (label)	100000000	iso4217:CAD	-8
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	ifrs-full:ProfitLoss (label)	1600000000	iso4217:CAD	-8
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PensionAndOtherDefinedBenefitsExpense (label)	93000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PensionAndOtherDefinedBenefitsExpense (label)	82000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ProFormaIncludingEffectsOfIfrs15Member (label)	tu:PensionAndOtherDefinedBenefitsExpense (label)	100000000	iso4217:CAD	-8

Fact Table
Network	40301 - Disclosure - capital structure financial policies (Details) (http://www.telus.com/role/DisclosureCapitalStructureFinancialPoliciesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:CashAndCashEquivalents (label)	223000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CashAndCashEquivalents (label)	432000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CashAndCashEquivalents (label)	509000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CashAndCashEquivalents (label)	400000000	iso4217:CAD	-8
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NetDebt (label)	12652000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NetDebt (label)	13422000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1223000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossAttributableToOwnersOfParent (label)	1460000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-8
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AccumulatedOtherComprehensiveIncomePreTaxInterestRateAndCurrencyHedgesOnUSDLongTermDebt (label)	-34000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AccumulatedOtherComprehensiveIncomePreTaxInterestRateAndCurrencyHedgesOnUSDLongTermDebt (label)	5000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:AdjustedNetEarningsAttributableToCommonShares (label)	1416000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:AdjustedNetEarningsAttributableToCommonShares (label)	1458000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:BusinessAcquisitionRelatedProvisionAfterTax (label)	15000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:BusinessAcquisitionRelatedProvisionAfterTax (label)	-22000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:DebtIssuanceCostsNettedAgainstLongTermDebt (label)	67000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:DebtIssuanceCostsNettedAgainstLongTermDebt (label)	73000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DividendPayOutRatio (label)	0.89	xbrli:pure	2
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DividendPayOutRatio (label)	0.8	xbrli:pure	2
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:BottomOfRangeMember (label)	tu:DividendPayOutRatioTarget (label)	0.65	xbrli:pure	2
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label)	tu:DividendPayOutRatioTarget (label)	0.75	xbrli:pure	2
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DividendPayoutRatioAdjustedNetEarnings (label)	0.77	xbrli:pure	2
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DividendPayoutRatioAdjustedNetEarnings (label)	0.8	xbrli:pure	2
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4229000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4774000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCosts (label)	4708000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCosts (label)	4913000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCostsInterestCoverageRatio (label)	8.3	xbrli:pure	1
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortizationExcludingRestructuringAndOtherCostsInterestCoverageRatio (label)	8.7	xbrli:pure	1
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:EarningsCoverageRatio (label)	4.0	xbrli:pure	1
33	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:EarningsCoverageRatio (label)	4.6	xbrli:pure	1
34	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:GainAndNetEquityIncomeRealEstateDevelopmentAfterTax (label)	-16000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:GainAndNetEquityIncomeRealEstateDevelopmentAfterTax (label)	-1000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:GainExchangeWirelessSpectrumLicencesAfterTax (label)	-13000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:ImmediatelyVestingTransformativeCompensationExpenseAfterTax (label)	-224000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:IncomeTaxRelatedAdjustmentsToNetIncomeAttributableToCommonShares (label)	17000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncomeTaxRelatedAdjustmentsToNetIncomeAttributableToCommonShares (label)	-21000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseEarningsCoverageRatioDueToChangeInBorrowingCosts (label)	-0.1	xbrli:pure	1
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseEarningsCoverageRatioDueToChangeInIncomeBeforeBorrowingCostsAndIncomeTaxes (label)	0.7	xbrli:pure	1
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseEbitdaExcludingRestructuringAndOtherCostsInterestCoverageRatioDueToChangeInEbitda (label)	0.4	xbrli:pure	1
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseNetDebtToEBITDRatioDueToChangeInNetDebt (label)	0.16	xbrli:pure	2
44	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseNetDebtToEbitdaRatioDueToChangeInEbitda (label)	-0.12	xbrli:pure	2
45	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatio (label)	2.69	xbrli:pure	2
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatio (label)	2.73	xbrli:pure	2
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:BottomOfRangeMember (label)	tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatioTarget (label)	2.0	xbrli:pure	0
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label)	tu:NetDebtToEbitdaExcludingRestructuringAndOtherCostsRatioTarget (label)	2.5	xbrli:pure	2
51	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:NetDebtToOperatingCashFlowMaximumRatio (label)	4.0	xbrli:pure	INF
52	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:NetDerivativeFinancialLiabilitiesAssetsNet (label)	20000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:NetDerivativeFinancialLiabilitiesAssetsNet (label)	93000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:NetInterestCost (label)	566000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:NetInterestCost (label)	567000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:RestructuringAndOtherCosts (label)	479000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:RestructuringAndOtherCosts (label)	139000000	iso4217:CAD	-6

Fact Table
Network	40401 - Disclosure - financial instruments - Credit risk (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsCreditRiskDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	1920000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:DerivativesMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	17000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:TradeReceivablesMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	1471000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:CashAndTemporaryInvestmentsNetMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	432000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	2156000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:DerivativesMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	24000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TradeReceivablesMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	1623000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:CashAndTemporaryInvestmentsNetMember (label)	ifrs-full:MaximumExposureToCreditRisk (label)	509000000	iso4217:CAD	-6

Fact Table
Network	40402 - Disclosure - financial instruments - Accounts receivable (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsAccountsReceivableDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)	58000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets (label)	54000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)	52000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)	54000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets (label)	43000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:FinancialAssets (label)	-54000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:CurrentMember (label)	ifrs-full:FinancialAssets (label)	-11000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember (label)	ifrs-full:FinancialAssets (label)	-9000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	-25000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	-9000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:FinancialAssets (label)	1217000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:CurrentMember (label)	ifrs-full:FinancialAssets (label)	908000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember (label)	ifrs-full:FinancialAssets (label)	185000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	80000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	44000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:FinancialAssets (label)	1163000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:CurrentMember (label)	ifrs-full:FinancialAssets (label)	897000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember (label)	ifrs-full:FinancialAssets (label)	176000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	55000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	35000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:FinancialAssets (label)	-43000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:CurrentMember (label)	ifrs-full:FinancialAssets (label)	-5000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember (label)	ifrs-full:FinancialAssets (label)	-8000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	-22000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	-8000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:FinancialAssets (label)	1221000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:CurrentMember (label)	ifrs-full:FinancialAssets (label)	909000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember (label)	ifrs-full:FinancialAssets (label)	185000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	67000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	60000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:FinancialAssets (label)	1178000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:CurrentMember (label)	ifrs-full:FinancialAssets (label)	904000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember (label)	ifrs-full:FinancialAssets (label)	177000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	45000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember (label)	ifrs-full:FinancialAssets (label)	52000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesAllowanceAccountForCreditLossesOfFinancialAssets (label)	9000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesAllowanceAccountForCreditLossesOfFinancialAssets (label)	1000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets (label)	65000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets (label)	66000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	tu:WeightedAverageAgeOfPastDueReceivables (label)	_3217174
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	tu:WeightedAverageAgeOfPastDueReceivables (label)	_3217836
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	tu:WeightedAverageAgeOfReceivables (label)	_3218496
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	tu:WeightedAverageAgeOfReceivables (label)	_3219156
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	tu:WrittenOffAmountsChargedToAllowanceForDoubtfulAccountsFinancialAssetsStillSubjectToEnforcement (label)	231000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CarryingAmountMember (label) * ifrs-full:TradeReceivablesMember (label) * tu:PastBillingDateStatusMember (label)	tu:WrittenOffAmountsChargedToAllowanceForDoubtfulAccountsFinancialAssetsStillSubjectToEnforcement (label)	298000000	iso4217:CAD	-6

Fact Table
Network	40403 - Disclosure - financial instruments - Liquidity risk (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsLiquidityRiskDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	921000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	23000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	23000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	23000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	23000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * tu:CurrencyRiskForeignCurrencyTransactionsMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	469000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	634000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * tu:CurrencyRiskForeignCurrencyTransactionsMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	469000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	1647000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	1679000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	46000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	46000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	46000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	46000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * tu:CurrencyRiskForeignCurrencyTransactionsMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	557000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	1206000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * tu:CurrencyRiskForeignCurrencyTransactionsMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	557000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencySwapContractMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * tu:CurrencyRiskLongTermDebtMember (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	3069000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:OtherDerivativesMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * ifrs-full:TypesOfRisksMember (label)	ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	3000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:OtherDerivativesMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * ifrs-full:TypesOfRisksMember (label)	ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	3000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * ifrs-full:TypesOfRisksMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	18822000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * ifrs-full:TypesOfRisksMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	11584000000	iso4217:CAD	-6
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91	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialLiabilitiesMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * ifrs-full:TypesOfRisksMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1501000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialLiabilitiesMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * ifrs-full:TypesOfRisksMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	4360000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DebtAndEquitySecuritiesShelfProspectusTwoMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * ifrs-full:TypesOfRisksMember (label)	tu:ShelfProspectusSecuritiesAvailableForIssuance (label)	2200000000	iso4217:CAD	-8
94	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DebtAndEquitySecuritiesShelfProspectusOneMember (label) * ifrs-full:AggregatedTimeBandsMember (label) * ifrs-full:TypesOfRisksMember (label)	tu:ShelfProspectusSecuritiesAvailableForIssuance (label)	1200000000	iso4217:CAD	-8

Fact Table
Network	40404 - Disclosure - financial instruments - Currency risk (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsCurrencyRiskDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:BottomOfRangeMember (label) * currency:USD (label)	tu:CurrencyRiskManagementExchangeRateHedgedRange (label)	0.5		xbrli:pure	2
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * currency:USD (label)	tu:CurrencyRiskManagementExchangeRateHedgedRange (label)	0.75		xbrli:pure	2

Fact Table
Network	40406 - Disclosure - financial instruments - Market risks (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsMarketRisksDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	-8000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	7000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	1000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	16000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	8000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-5000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	5000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-16000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	8000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	1000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	14000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	1000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-8000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-1000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-8000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInNetIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-1000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	-16000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	6000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	-13000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleDecreaseInRiskVariable (label)	15000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	16000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-4000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	13000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:IncreaseDecreaseInOtherComprehensiveIncomeDueToReasonablyPossibleIncreaseInRiskVariable (label)	-15000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:SensitivityAnalysisPercentageOfReasonablyPossibleChangeInRiskVariable (label)	0.25	xbrli:pure	2
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:SensitivityAnalysisPercentageOfReasonablyPossibleChangeInRiskVariable (label)	0.1	xbrli:pure	2
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:SensitivityAnalysisPercentageOfReasonablyPossibleChangeInRiskVariable (label)	0.25	xbrli:pure	2
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * currency:USD (label)	tu:SensitivityAnalysisPercentageOfReasonablyPossibleChangeInRiskVariable (label)	0.1	xbrli:pure	2
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:SensitivityAnalysisPeriodOfDataForVolatilityInSharePrice (label)	_3124464
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:SensitivityAnalysisPeriodOfDataForVolatilityInSharePrice (label)	_3125082
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IssuedCapitalMember (label)	tu:SensitivityAnalysisSharePriceVolatility (label)	0.131	xbrli:pure	3
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IssuedCapitalMember (label)	tu:SensitivityAnalysisSharePriceVolatility (label)	0.07	xbrli:pure	3

Fact Table
Network	40407 - Disclosure - financial instruments - Fair values (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsFairValuesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsEquitySwapMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	7000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	10000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:LongTermInvestmentAvailableForSaleMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	62000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssets (label)	79000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	79000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IfrsEquitySwapMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	20000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	4000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermInvestmentAvailableForSaleMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	41000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssets (label)	65000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialAssets (label)	65000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsEquitySwapMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssetsAtFairValue (label)	7000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssetsAtFairValue (label)	10000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:LongTermInvestmentAvailableForSaleMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssetsAtFairValue (label)	62000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IfrsEquitySwapMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssetsAtFairValue (label)	20000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssetsAtFairValue (label)	4000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermInvestmentAvailableForSaleMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialAssetsAtFairValue (label)	41000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsEquitySwapMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialLiabilities (label)	3000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialLiabilities (label)	30000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialLiabilities (label)	33000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialLiabilities (label)	108000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:StartingInterestRateDerivativesMember (label) * ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialLiabilities (label)	1000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * tu:ReportedAtOtherThanFairValueMember (label)	ifrs-full:FinancialLiabilities (label)	109000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsEquitySwapMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialLiabilitiesAtFairValue (label)	3000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialLiabilitiesAtFairValue (label)	30000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialLiabilitiesAtFairValue (label)	33000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IfrsForeignExchangeContractMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialLiabilitiesAtFairValue (label)	108000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:StartingInterestRateDerivativesMember (label) * ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialLiabilitiesAtFairValue (label)	1000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:Level2OfFairValueHierarchyMember (label) * ifrs-full:RecurringFairValueMeasurementMember (label)	ifrs-full:FinancialLiabilitiesAtFairValue (label)	109000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * ifrs-full:AggregatedMeasurementMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13533000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * ifrs-full:AggregatedMeasurementMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AllLevelsOfFairValueHierarchyMember (label) * ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	14255000000	iso4217:CAD	-6

Fact Table
Network	40408 - Disclosure - financial instruments - Derivatives (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsDerivativesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:GOC2.14TenYearTermNoteMember (label) * ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:InterestRateRiskMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0214	xbrli:pure	4
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * ifrs-full:ClassesOfFinancialInstrumentsMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	11000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	11000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	1000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	3000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	7000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * ifrs-full:ClassesOfFinancialInstrumentsMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	18000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	1000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	18000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	14000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	1000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialAssets (label)	2000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * ifrs-full:ClassesOfFinancialInstrumentsMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	12000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	5000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	12000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	3000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	2000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	2000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * ifrs-full:ClassesOfFinancialInstrumentsMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	33000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:GOC2.14TenYearTermNoteMember (label) * ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:InterestRateRiskMember (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	1000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	33000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	18000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	ifrs-full:CurrentDerivativeFinancialLiabilities (label)	14000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	ifrs-full:NoncurrentDerivativeFinancialAssets (label)	6000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	ifrs-full:NoncurrentDerivativeFinancialAssets (label)	6000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	ifrs-full:NoncurrentDerivativeFinancialLiabilities (label)	21000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	ifrs-full:NoncurrentDerivativeFinancialLiabilities (label)	76000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.28	iso4217:CAD/iso4217:USD	2
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.34	iso4217:CAD/iso4217:USD	2
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.34	iso4217:CAD/iso4217:USD	2
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.32	iso4217:CAD/iso4217:USD	2
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.3	iso4217:CAD/iso4217:USD	2
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.35	iso4217:CAD/iso4217:USD	2
34	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.38	iso4217:CAD/iso4217:USD	2
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.32	iso4217:CAD/iso4217:USD	2
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.25	iso4217:CAD/iso4217:USD	2
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.24	iso4217:CAD/iso4217:USD	2
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.24	iso4217:CAD/iso4217:USD	2
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.28	iso4217:CAD/iso4217:USD	2
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.3	iso4217:CAD/iso4217:USD	2
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:DerivativeExchangeRate (label)	1.32	iso4217:CAD/iso4217:USD	2
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:DerivativeWeightedAveragePricePerUnit (label)	41.0	iso4217:CAD	2
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:DerivativeWeightedAveragePricePerUnit (label)	45.76	iso4217:CAD	2
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:DerivativeWeightedAveragePricePerUnit (label)	40.77	iso4217:CAD	2
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:DerivativeWeightedAveragePricePerUnit (label)	40.91	iso4217:CAD	2
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:DerivativeWeightedAveragePricePerUnit (label)	45.46	iso4217:CAD	2
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:GOC2.14TenYearTermNoteMember (label) * ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:InterestRateRiskMember (label)	tu:IfrsDebtInstrumentTerm (label)	_3050986
48	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:GOC2.14TenYearTermNoteMember (label) * ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:InterestRateRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	-
49	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
50	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
52	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
53	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
54	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
55	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
56	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2017
58	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
59	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2027
60	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:GOC2.14TenYearTermNoteMember (label) * ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:InterestRateRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
61	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	-
62	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
63	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	-
64	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
65	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
66	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
67	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	-
68	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
69	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2018
70	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2019
71	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:IfrsDerivativeInstrumentMaximumMaturityDate (label)	2027
72	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * ifrs-full:DerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label)	tu:IfrsHedgeRatioPercentage (label)	1.0	xbrli:pure	2
73	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * ifrs-full:DerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label)	tu:IfrsHedgeRatioPercentage (label)	1.0	xbrli:pure	2
74	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	8000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	4000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	6000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	191000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	263000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTradingCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	71000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	73000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	124000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeAssetsCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeAssets (label)	110000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossThatMeetDefinitionOfHeldForTradingCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:TypesOfHedgesMember (label) * tu:CurrencyRiskRevenuesMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	124000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	65000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	422000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	69000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:GOC2.14TenYearTermNoteMember (label) * ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:InterestRateRiskMember (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	300000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	1036000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:DerivativeLiabilitiesCurrentMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * currency:USD (label)	tu:NotionalAmountCurrentDerivativeLiabilities (label)	376000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:NotionalAmountNoncurrentDerivativeAssets (label)	69000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermAssetDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * ifrs-full:OtherPriceRiskMember (label)	tu:NotionalAmountNoncurrentDerivativeAssets (label)	63000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:NotionalAmountNoncurrentDerivativeLiabilities (label)	1036000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:FinancialAssetsCategoryMember (label) * ifrs-full:FinancialLiabilitiesCategoryMember (label) * tu:OtherLongTermLiabilitiesDerivativesMember (label) * ifrs-full:CashFlowHedgesMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * currency:USD (label)	tu:NotionalAmountNoncurrentDerivativeLiabilities (label)	1910000000	iso4217:CAD	-6

Fact Table
Network	40409 - Disclosure - financial instruments - Derivative gains and losses (Details) (http://www.telus.com/role/DisclosureFinancialInstrumentsDerivativeGainsAndLossesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-47000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-66000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:OtherPriceRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	19000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-12000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesHeldForHedgingMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-54000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-66000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	19000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-108000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-132000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:OtherPriceRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	24000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-23000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesHeldForHedgingMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-109000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-132000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	24000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesHeldForTradingMember (label) * ifrs-full:CurrencyRiskMember (label) * tu:FinancingCostsMember (label)	ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading (label)	-2000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesHeldForTradingMember (label) * ifrs-full:CurrencyRiskMember (label) * tu:FinancingCostsMember (label)	ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading (label)	3000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesHeldForHedgingMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnIneffectivenessOfCashFlowHedgesRecognisedInProfitOrLoss (label)	0	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesHeldForHedgingMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:GainsLossesOnIneffectivenessOfCashFlowHedgesRecognisedInProfitOrLoss (label)	0	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-21000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-29000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:OtherPriceRiskMember (label) * tu:EmployeeBenefitsExpenseMember (label) * currency:USD (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	8000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:DerivativesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * tu:GoodsAndServicesPurchasedMember (label) * currency:USD (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-9000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesHeldForHedgingMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * tu:FinancingCostsMember (label) * currency:USD (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-20000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-29000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-8000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-134000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-151000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * ifrs-full:OtherPriceRiskMember (label) * tu:EmployeeBenefitsExpenseMember (label) * currency:USD (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	17000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DerivativesMember (label) * tu:CurrencyRiskPurchaseTransactionsMember (label) * tu:GoodsAndServicesPurchasedMember (label) * currency:USD (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-5000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesHeldForHedgingMember (label) * tu:CurrencyRiskLongTermDebtMember (label) * tu:IfrsIncomeStatementLocationMember (label) * currency:USD (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-146000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	151000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label) * tu:IfrsIncomeStatementLocationMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-17000000	iso4217:CAD	-6

Fact Table
Network	40501 - Disclosure - segment information - Operating revenue (Details) (http://www.telus.com/role/DisclosureSegmentInformationOperatingRevenueDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:OtherRevenue (label)	74000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:OtherRevenue (label)	74000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:OtherRevenue (label)	37000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:OtherRevenue (label)	37000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:OtherRevenue (label)	102000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:OtherRevenue (label)	102000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:OtherRevenue (label)	36000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:OtherRevenue (label)	66000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:Revenue (label)	12799000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EliminationOfIntersegmentAmountsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:Revenue (label)	-252000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:Revenue (label)	12799000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:Revenue (label)	7173000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:Revenue (label)	5878000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:Revenue (label)	13304000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EliminationOfIntersegmentAmountsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:Revenue (label)	-249000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:Revenue (label)	13304000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:Revenue (label)	7578000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:Revenue (label)	5975000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	12725000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	12725000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	7078000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	5647000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	13202000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	13202000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	7499000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:RevenueFromContractsWithCustomers (label)	5703000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12000000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12000000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	6569000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	5431000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12478000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	12478000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	6994000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:RevenueFromRenderingOfTelecommunicationServices (label)	5484000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	725000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	725000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	509000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	216000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	724000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	724000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	505000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	ifrs-full:RevenueFromSaleOfGoods (label)	219000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	tu:CapexExcludingSpectrum (label)	2968000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:CapexExcludingSpectrum (label)	982000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:CapexExcludingSpectrum (label)	1986000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	tu:CapexExcludingSpectrum (label)	3094000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:CapexExcludingSpectrum (label)	978000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:CapexExcludingSpectrum (label)	2116000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4229000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4229000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	2906000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	1323000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * ifrs-full:SegmentsMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4774000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4774000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	3099000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	1675000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EliminationOfIntersegmentAmountsMember (label) * ifrs-full:SegmentsMember (label)	tu:IntersegmentRevenue (label)	-252000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:IntersegmentRevenue (label)	58000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:IntersegmentRevenue (label)	194000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EliminationOfIntersegmentAmountsMember (label) * ifrs-full:SegmentsMember (label)	tu:IntersegmentRevenue (label)	-249000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:IntersegmentRevenue (label)	43000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:IntersegmentRevenue (label)	206000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	tu:RevenueBeforeIntersegment (label)	12799000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:RevenueBeforeIntersegment (label)	7115000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:RevenueBeforeIntersegment (label)	5684000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OperatingSegmentsMember (label) * ifrs-full:SegmentsMember (label)	tu:RevenueBeforeIntersegment (label)	13304000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelessMember (label)	tu:RevenueBeforeIntersegment (label)	7535000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForSegmentConsolidationItemsMember (label) * tu:WirelineMember (label)	tu:RevenueBeforeIntersegment (label)	5769000000	iso4217:CAD	-6

Fact Table
Network	40502 - Disclosure - segment information - Income before income taxes (Details) (http://www.telus.com/role/DisclosureSegmentInformationIncomeBeforeIncomeTaxesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1564000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1617000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:EmployeeBenefitsExpense (label)	2939000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:EmployeeBenefitsExpense (label)	2595000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:FinanceCosts (label)	520000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:FinanceCosts (label)	573000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossBeforeTax (label)	1662000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossBeforeTax (label)	2032000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLossFromOperatingActivities (label)	2182000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossFromOperatingActivities (label)	2605000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:Revenue (label)	12799000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:Revenue (label)	13304000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4229000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:EarningsBeforeInterestTaxesDepreciationAndAmortization (label)	4774000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:GoodsAndServicesPurchased (label)	5631000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:GoodsAndServicesPurchased (label)	5935000000	iso4217:CAD	-6

Fact Table
Network	40601 - Disclosure - revenue from contracts with customers (Details) (http://www.telus.com/role/DisclosureRevenueFromContractsWithCustomersDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentAccruedIncome (label)	131000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentAccruedIncome (label)	143000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentReceivablesFromContractsWithCustomers (label)	1217000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentReceivablesFromContractsWithCustomers (label)	1221000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherCurrentReceivables (label)	177000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherCurrentReceivables (label)	302000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1471000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1623000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:TradeAndOtherCurrentReceivables (label)	1500000000	iso4217:CAD	-8
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:CurrentReceivablesFromContractsWithCustomersNet (label)	1294000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:CurrentReceivablesFromContractsWithCustomersNet (label)	1321000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:IfrsAllowanceForDoubtfulAccountsReceivable (label)	54000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:IfrsAllowanceForDoubtfulAccountsReceivable (label)	43000000	iso4217:CAD	-6

Fact Table
Network	40701 - Disclosure - other operating income (Details) (http://www.telus.com/role/DisclosureOtherOperatingIncomeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherRevenue (label)	74000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherRevenue (label)	102000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Contribution expense rate	0.006	xbrli:pure	4
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Contributions to the central fund	23000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Contributions to the central fund	27000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:GovernmentAssistance (label)	36000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:GovernmentAssistance (label)	32000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestIncomeRealEstateJointVentures (label)	1000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2018-01-01 to 2018-12-31	null	tu:InterimContributionExpenseRate (label)	0.0054	xbrli:pure	4
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable (label)	26000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:OtherOperatingIncomeInvestmentIncomeGainOnDisposalsOfAssetsAndOther (label)	37000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:OtherOperatingIncomeInvestmentIncomeGainOnDisposalsOfAssetsAndOther (label)	44000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:QuebecEmploymentIncomeTaxCredits (label)	6000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:QuebecEmploymentIncomeTaxCredits (label)	7000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	Subsidy receipts	20000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	Subsidy receipts	19000000	iso4217:CAD	-6

Fact Table
Network	40801 - Disclosure - employee benefits expense (Details) (http://www.telus.com/role/DisclosureEmployeeBenefitsExpenseDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	2939000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	2634000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	305000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:EmployeeBenefitsExpense (label)	2595000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	181000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	114000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	67000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label) * tu:RestructuringCostsMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	4000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	128000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label) * tu:RestructuringCostsMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	-7000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	92000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	92000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	82000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	130000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	89000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	41000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	88000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:WagesAndSalaries (label)	2733000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	ifrs-full:WagesAndSalaries (label)	2548000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	ifrs-full:WagesAndSalaries (label)	185000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	ifrs-full:WagesAndSalaries (label)	2594000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:CapitalizedIntangibleAssetsSubjectToAmortization (label)	-161000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:CapitalizedIntangibleAssetsSubjectToAmortization (label)	-161000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:CapitalizedIntangibleAssetsSubjectToAmortization (label)	-158000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:CapitalizedInternalLabour (label)	-475000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:CapitalizedInternalLabour (label)	-475000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:CapitalizedInternalLabour (label)	-479000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:CapitalizedPropertyPlantEquipment (label)	-314000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:CapitalizedPropertyPlantEquipment (label)	-314000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:CapitalizedPropertyPlantEquipment (label)	-321000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:EmployeeBenefitsIncludingRestructuring (label)	3414000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:EmployeeBenefitsIncludingRestructuring (label)	3109000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	tu:EmployeeBenefitsIncludingRestructuring (label)	305000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:EmployeeBenefitsIncludingRestructuring (label)	3074000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:ExpenseOfRestructuringActivitiesEmployeeBenefits (label)	112000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:ExpenseOfRestructuringActivitiesEmployeeBenefits (label)	112000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:ExpenseOfRestructuringActivitiesEmployeeBenefits (label)	26000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:OtherDefinedBenefits (label)	1000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:OtherDefinedBenefits (label)	1000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:OtherProvisionsEmployeeBenefits (label)	165000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:OtherProvisionsEmployeeBenefits (label)	153000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	tu:OtherProvisionsEmployeeBenefits (label)	12000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ClassesOfEmployeeBenefitsMember (label)	tu:OtherProvisionsEmployeeBenefits (label)	156000000	iso4217:CAD	-6

Fact Table
Network	40901 - Disclosure - financing costs (Details) (http://www.telus.com/role/DisclosureFinancingCostsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation (label)	0.0331	xbrli:pure	4
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation (label)	0.0331	xbrli:pure	4
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:FinanceCosts (label)	520000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:FinanceCosts (label)	573000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:InterestExpense (label)	523000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:InterestExpense (label)	580000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	-6000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	-6000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:InterestExpenseOnBorrowings (label)	502000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:InterestExpenseOnBorrowings (label)	579000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:RevenueFromInterest (label)	3000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:RevenueFromInterest (label)	7000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:TradingIncomeExpenseOnForeignExchangeContracts (label)	-15000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:TradingIncomeExpenseOnForeignExchangeContracts (label)	5000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestExpenseLongTermDebtCapitalizedToIndefiniteLivedIntangibleAssets (label)	52000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestExpenseOnBorrowingsAndOtherShortTerm (label)	4000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:InterestExpenseOnBorrowingsAndOtherShortTerm (label)	5000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestExpenseOnBorrowingsLongTermGross (label)	538000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:InterestExpenseOnBorrowingsLongTermGross (label)	561000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestExpenseOnBorrowingsLongTermNet (label)	486000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:InterestExpenseOnBorrowingsLongTermNet (label)	561000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestExpenseProvisions (label)	12000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:InterestExpenseProvisions (label)	13000000	iso4217:CAD	-6

Fact Table
Network	41001 - Disclosure - income taxes - Expense composition (Details) (http://www.telus.com/role/DisclosureIncomeTaxesExpenseCompositionDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)	-38000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod (label)	-82000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods (label)	26000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods (label)	78000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CurrentTaxExpenseIncome (label)	506000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CurrentTaxExpenseIncome (label)	205000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods (label)	468000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods (label)	123000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-42000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	430000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences (label)	-64000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences (label)	324000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes (label)	-4000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes (label)	28000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	426000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	553000000	iso4217:CAD	-6

Fact Table
Network	41002 - Disclosure - income taxes - Rate reconciliations (Details) (http://www.telus.com/role/DisclosureIncomeTaxesRateReconciliationsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ApplicableTaxRate (label)	0.267	xbrli:pure	3
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ApplicableTaxRate (label)	0.266	xbrli:pure	3
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AverageEffectiveTaxRate (label)	0.256	xbrli:pure	3
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AverageEffectiveTaxRate (label)	0.272	xbrli:pure	3
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes (label)	-4000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes (label)	28000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	426000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxExpenseContinuingOperations (label)	553000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)	-2000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)	-12000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)	-0.001	xbrli:pure	3
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherTaxRateEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome (label)	-0.005	xbrli:pure	3
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:TaxEffectFromChangeInTaxRate (label)	-12000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:TaxEffectFromChangeInTaxRate (label)	-4000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:TaxExpenseIncomeAtApplicableTaxRate (label)	444000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:TaxExpenseIncomeAtApplicableTaxRate (label)	541000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:TaxRateEffectFromChangeInTaxRate (label)	-0.002	xbrli:pure	3
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:TaxRateEffectFromChangeInTaxRate (label)	0.013	xbrli:pure	3
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods (label)	-0.008	xbrli:pure	3
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:TaxRateEffectOfAdjustmentsForCurrentTaxOfPriorPeriods (label)	-0.002	xbrli:pure	3

Fact Table
Network	41003 - Disclosure - income taxes - Temporary differences (Details) (http://www.telus.com/role/DisclosureIncomeTaxesTemporaryDifferencesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	Deferred tax assets	5000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	Deferred tax assets	5000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-42000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	77000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-6000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnusedTaxLossesMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-3000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-7000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:PartnershipIncomeUnallocatedForIncomeTaxPurposesMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-200000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	85000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ReservesNotCurrentlyDeductibleMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	12000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	430000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	84000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-3000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnusedTaxLossesMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-1000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	-11000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:PartnershipIncomeUnallocatedForIncomeTaxPurposesMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	5000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	348000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ReservesNotCurrentlyDeductibleMember (label)	ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss (label)	8000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxLiabilities (label)	2107000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxLiabilities (label)	2500000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxLiabilities (label)	2100000000	iso4217:CAD	-8
22	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	2155000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	1380000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	3000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:UnusedTaxLossesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-3000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-45000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:PartnershipIncomeUnallocatedForIncomeTaxPurposesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	195000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	785000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:ReservesNotCurrentlyDeductibleMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-160000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	2102000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	1457000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-18000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnusedTaxLossesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-6000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-48000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:PartnershipIncomeUnallocatedForIncomeTaxPurposesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-5000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	870000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:ReservesNotCurrentlyDeductibleMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-148000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	2495000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	1561000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-20000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnusedTaxLossesMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-7000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-120000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	1221000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ReservesNotCurrentlyDeductibleMember (label)	ifrs-full:DeferredTaxLiabilityAsset (label)	-140000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	5000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	5000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	-20000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	-20000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	3000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:PropertyPlantAndEquipmentAndIntangibleAssetsSubjectToAmortizationMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	-3000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	-6000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	-10000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	4000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember (label)	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	-57000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherTemporaryDifferencesMember (label)	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	4000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:NetPensionAndSharebasedCompensationAmountsMember (label)	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	-61000000	iso4217:CAD	-6

Fact Table
Network	41004 - Disclosure - income taxes - Other (Details) (http://www.telus.com/role/DisclosureIncomeTaxesOtherDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnusedTaxCreditsMember (label) * tu:IfrsBalanceSheetLocationMember (label) * tu:ScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	5000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnusedTaxCreditsMember (label) * tu:PropertyPlantAndEquipmentAndOrIntangibleAssetsMember (label) * tu:ScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	1000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:NetCapitalLossCarryforwardMember (label) * tu:IfrsBalanceSheetLocationMember (label) * tu:ScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	0	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:NetCapitalLossCarryforwardMember (label) * tu:IfrsBalanceSheetLocationMember (label) * tu:ForecastScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	4000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnusedTaxCreditsMember (label) * tu:IfrsBalanceSheetLocationMember (label) * tu:ScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	12000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnusedTaxCreditsMember (label) * tu:PropertyPlantAndEquipmentAndOrIntangibleAssetsMember (label) * tu:ScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	7000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:NetCapitalLossCarryforwardMember (label) * tu:IfrsBalanceSheetLocationMember (label) * tu:ScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	4000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:NetCapitalLossCarryforwardMember (label) * tu:IfrsBalanceSheetLocationMember (label) * tu:ForecastScenarioMember (label)	ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense (label)	0	iso4217:CAD	-6

Fact Table
Network	41101 - Disclosure - other comprehensive income (Details) (http://www.telus.com/role/DisclosureOtherComprehensiveIncomeDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	59000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	44000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	57000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	51000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:AccumulatedOtherComprehensiveIncome (label)	6000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-66000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	19000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	-132000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:GainsLossesOnCashFlowHedgesBeforeTax (label)	24000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome (label)	-2000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome (label)	-6000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome (label)	-9000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome (label)	3000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome (label)	7000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome (label)	6000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncome (label)	1000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	-6000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome (label)	-57000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome (label)	-62000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncome (label)	-15000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-17000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-17000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:OtherComprehensiveIncome (label)	2000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncome (label)	-159000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:OtherComprehensiveIncome (label)	9000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityAttributableToOwnersOfParentMember (label)	ifrs-full:OtherComprehensiveIncome (label)	-163000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:NoncontrollingInterestsMember (label)	ifrs-full:OtherComprehensiveIncome (label)	4000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTax (label)	-21000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTax (label)	-216000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets (label)	-13000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges (label)	-26000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges (label)	-37000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges (label)	11000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges (label)	26000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges (label)	19000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:OtherComprehensiveIncomeBeforeTaxCashFlowHedges (label)	7000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation (label)	5000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation (label)	5000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)	-234000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxAvailableforsaleFinancialAssets (label)	-11000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	-20000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	-28000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	8000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	19000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedOtherComprehensiveIncomeMember (label)	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	5000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	13000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges (label)	6000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)	5000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation (label)	5000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)	0	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans (label)	-172000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax (label)	-21000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax (label)	18000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)	-15000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax (label)	13000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-29000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-8000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	151000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesBeforeTax (label)	-17000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:ReserveOfCashFlowHedges (label)	6000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:ReserveOfCashFlowHedges (label)	-6000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ReserveOfCashFlowHedges (label)	-20000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:ReserveOfCashFlowHedges (label)	-22000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:ReserveOfCashFlowHedges (label)	2000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ReserveOfCashFlowHedges (label)	-1000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CurrencyRiskMember (label)	ifrs-full:ReserveOfCashFlowHedges (label)	-9000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OtherPriceRiskMember (label)	ifrs-full:ReserveOfCashFlowHedges (label)	8000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:ReserveOfExchangeDifferencesOnTranslation (label)	43000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ReserveOfExchangeDifferencesOnTranslation (label)	48000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ReserveOfExchangeDifferencesOnTranslation (label)	53000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2015-12-31	null	ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets (label)	16000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets (label)	16000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssets (label)	5000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeAccumulatedOther (label)	-6000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeAccumulatedOther (label)	5000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeNotReclassification (label)	-18000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeNotReclassification (label)	5000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeNotReclassification (label)	-21000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeNotReclassification (label)	6000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CurrencyRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeReclassification (label)	9000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherPriceRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeReclassification (label)	-2000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CurrencyRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeReclassification (label)	27000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherPriceRiskMember (label)	tu:IncomeTaxRelatingToCashFlowHedgesOfOtherComprehensiveIncomeReclassification (label)	-5000000	iso4217:CAD	-6

Fact Table
Network	41201 - Disclosure - per share amounts (Details) (http://www.telus.com/role/DisclosurePerShareAmountsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsAntidilutiveSecuritiesNameMember (label)	ifrs-full:AdjustedWeightedAverageShares (label)	593000000	xbrli:shares	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsAntidilutiveSecuritiesNameMember (label)	ifrs-full:AdjustedWeightedAverageShares (label)	593000000	xbrli:shares	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsAntidilutiveSecuritiesNameMember (label)	ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares (label)	1000000	xbrli:shares	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsAntidilutiveSecuritiesNameMember (label)	ifrs-full:WeightedAverageShares (label)	592000000	xbrli:shares	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsAntidilutiveSecuritiesNameMember (label)	ifrs-full:WeightedAverageShares (label)	593000000	xbrli:shares	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsEmployeeStockOptionMember (label)	tu:IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount (label)	0	xbrli:shares	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsEmployeeStockOptionMember (label)	tu:IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount (label)	0	xbrli:shares	-6

Fact Table
Network	41301 - Disclosure - dividends per share (Details) (http://www.telus.com/role/DisclosureDividendsPerShareDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-11 to 2017-12-11	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.505	iso4217:CAD/xbrli:shares	4
2	0000868675 (http://www.sec.gov/CIK)	2016-12-09 to 2016-12-09	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.48	iso4217:CAD/xbrli:shares	2
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	1.84	iso4217:CAD/xbrli:shares	2
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	1.97	iso4217:CAD/xbrli:shares	4
5	0000868675 (http://www.sec.gov/CIK)	2018-02-07 to 2018-02-07	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.505	iso4217:CAD/xbrli:shares	4
6	0000868675 (http://www.sec.gov/CIK)	2017-03-10 to 2017-03-10	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.48	iso4217:CAD/xbrli:shares	4
7	0000868675 (http://www.sec.gov/CIK)	2016-03-11 to 2016-03-11	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.44	iso4217:CAD/xbrli:shares	2
8	0000868675 (http://www.sec.gov/CIK)	2016-06-10 to 2016-06-10	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.46	iso4217:CAD/xbrli:shares	2
9	0000868675 (http://www.sec.gov/CIK)	2017-06-09 to 2017-06-09	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.4925	iso4217:CAD/xbrli:shares	4
10	0000868675 (http://www.sec.gov/CIK)	2017-09-08 to 2017-09-08	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.4925	iso4217:CAD/xbrli:shares	4
11	0000868675 (http://www.sec.gov/CIK)	2016-09-09 to 2016-09-09	null	ifrs-full:DividendsPaidOrdinarySharesPerShare (label)	0.46	iso4217:CAD/xbrli:shares	2
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	Dividend reinvestment in Common Shares	59000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	Dividend reinvestment in Common Shares	58000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-11 to 2017-12-11	null	tu:DividendsDeclared (label)	299000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-09 to 2016-12-09	null	tu:DividendsDeclared (label)	284000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DividendsDeclared (label)	1091000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DividendsDeclared (label)	1167000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-03-10 to 2017-03-10	null	tu:DividendsDeclared (label)	283000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-03-11 to 2016-03-11	null	tu:DividendsDeclared (label)	261000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-06-10 to 2016-06-10	null	tu:DividendsDeclared (label)	274000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-06-09 to 2017-06-09	null	tu:DividendsDeclared (label)	293000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-09-08 to 2017-09-08	null	tu:DividendsDeclared (label)	292000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-09-09 to 2016-09-09	null	tu:DividendsDeclared (label)	272000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate (label)	0.0	xbrli:pure	2
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:DividendReinvestmentAndSharePurchasePlanMember (label)	tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate (label)	0.05	xbrli:pure	INF
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate (label)	0.0	xbrli:pure	2
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	tu:MaximumInvestmentInCommonShares (label)	20000	iso4217:CAD	INF
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendReinvestmentAndSharePurchasePlanMember (label)	tu:MinimumInvestmentInCommonSharesPerTransaction (label)	100	iso4217:CAD	INF

Fact Table
Network	41401 - Disclosure - share-based compensation - Expense (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationExpenseDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForSharebasedPayments (label)	-2000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	ifrs-full:AdjustmentsForSharebasedPayments (label)	-2000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForSharebasedPayments (label)	17000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsEmployeeStockOptionMember (label)	ifrs-full:AdjustmentsForSharebasedPayments (label)	1000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	ifrs-full:AdjustmentsForSharebasedPayments (label)	16000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	185000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	40000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	81000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	64000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	121000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	37000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsEmployeeStockOptionMember (label)	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	1000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets (label)	83000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:CashInflowsReceiptsFromCashSettledEquitySwapAgreements (label)	9000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:CashInflowsReceiptsFromCashSettledEquitySwapAgreements (label)	14000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	tu:CommonSharesHeldInEmployeeBenefitPlanTrust (label)	0	xbrli:shares	0
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:EmployeeSharePurchasePlanEmployerContributions (label)	3000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:EmployeeSharePurchasePlanEmployerContributions (label)	0	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	tu:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsPresentedAsSharebasedCompensation (label)	77000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	tu:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssetsPresentedAsSharebasedCompensation (label)	90000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	187000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	40000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	83000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	64000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	104000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	37000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	tu:OperatingCashOutflowsAssociatedWithExpenseFromSharebasedPayment (label)	67000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TransformativeCompensationMember (label)	tu:PercentageTransformativeCompensationLumpsumPaymentsPaidInCommonShares (label)	0.4	xbrli:pure	2
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:TaxBenefitFromSharebasedCompensationExpense (label)	49000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:TaxBenefitFromSharebasedCompensationExpense (label)	32000000	iso4217:CAD	-6

Fact Table
Network	41402 - Disclosure - share-based compensation - Restricted stock units (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationRestrictedStockUnitsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3564412	tu:EquityInstruments	INF
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsCustomerConnectionMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	130234	tu:EquityInstruments	INF
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsShareholderReturnMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	390703	tu:EquityInstruments	INF
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3390979	tu:EquityInstruments	INF
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationRestrictedStockUnitsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3781682	tu:EquityInstruments	INF
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationServiceRestrictedStockUnitsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3260745	tu:EquityInstruments	INF
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsCustomerConnectionMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	154452	tu:EquityInstruments	INF
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsShareholderReturnMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	463357	tu:EquityInstruments	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3481916	tu:EquityInstruments	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationRestrictedStockUnitsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3945273	tu:EquityInstruments	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationServiceRestrictedStockUnitsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3327464	tu:EquityInstruments	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsCustomerConnectionMember (label)	tu:PayoutWeightOfCustomerConnectionPerformanceConditionInSharebasedPaymentArrangement (label)	0.25	xbrli:pure	INF
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsShareholderReturnMember (label)	tu:PayoutWeightOfShareholderReturnPerformanceConditionInSharebasedPaymentArrangement (label)	0.75	xbrli:pure	INF
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	tu:RestrictedStockUnitNominalValueInEquityShares (label)	1	xbrli:shares	0
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsMember (label)	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement (label)	0	xbrli:pure	INF
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsMember (label)	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement (label)	2	xbrli:pure	INF
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsRestrictedStockUnitsRSUMember (label)	tu:VestingLifeOfShareBasedAwards (label)	_2722598

Fact Table
Network	41403 - Disclosure - share-based compensation - TELUS Corp restricted stock units activity (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusCorpRestrictedStockUnitsActivityDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	1942446	tu:EquityInstruments	INF
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	1825688	tu:EquityInstruments	INF
3	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (label)	29008	tu:EquityInstruments	INF
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (label)	29108	tu:EquityInstruments	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (label)	32848	tu:EquityInstruments	INF
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement (label)	300776	tu:EquityInstruments	INF
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement (label)	174786	tu:EquityInstruments	INF
8	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3564412	tu:EquityInstruments	INF
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3390979	tu:EquityInstruments	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3481916	tu:EquityInstruments	INF
11	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (label)	41.42	iso4217:CAD	2
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (label)	41.71	iso4217:CAD	2
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (label)	41.87	iso4217:CAD	2
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfInstrumentsOtherEquityInstrumentsIssuedInLieuOfDividends (label)	209027	tu:EquityInstruments	INF
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfInstrumentsOtherEquityInstrumentsIssuedInLieuOfDividends (label)	206715	tu:EquityInstruments	INF
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfInstrumentsOtherEquityInstrumentsIssuedInLieuOfDividendsForVestedInstruments (label)	381	tu:EquityInstruments	INF
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfInstrumentsOtherEquityInstrumentsIssuedInLieuOfDividendsForVestedInstruments (label)	455	tu:EquityInstruments	INF
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfInstrumentsOtherEquityInstrumentsSettledInCash (label)	2004126	tu:EquityInstruments	INF
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfInstrumentsOtherEquityInstrumentsSettledInCash (label)	1698008	tu:EquityInstruments	INF
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (label)	2024130	tu:EquityInstruments	INF
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (label)	1766680	tu:EquityInstruments	INF
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfVestedOtherEquityInstrumentsForfeitedAndCancelledInSharebasedPaymentArrangement (label)	20285	tu:EquityInstruments	INF
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:NumberOfVestedOtherEquityInstrumentsForfeitedAndCancelledInSharebasedPaymentArrangement (label)	65387	tu:EquityInstruments	INF
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsForfeitedAndCancelledInPeriod (label)	35.7	iso4217:CAD	2
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsForfeitedAndCancelledInPeriod (label)	42.88	iso4217:CAD	2
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod (label)	39.74	iso4217:CAD	2
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod (label)	43.56	iso4217:CAD	2
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsIssuedInLieuOfDividendsInPeriod (label)	41.63	iso4217:CAD	2
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsIssuedInLieuOfDividendsInPeriod (label)	43.98	iso4217:CAD	2
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsSettledInCashInPeriod (label)	39.29	iso4217:CAD	2
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsSettledInCashInPeriod (label)	43.63	iso4217:CAD	2
32	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (label)	40.0	iso4217:CAD	2
33	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (label)	38.09	iso4217:CAD	2
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (label)	41.0	iso4217:CAD	2
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVestedInPeriod (label)	39.31	iso4217:CAD	2
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVestedInPeriod (label)	43.73	iso4217:CAD	2

Fact Table
Network	41404 - Disclosure - share-based compensation - TELUS Corp restricted stock units vesting year (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusCorpRestrictedStockUnitsVestingYearDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3564412	tu:EquityInstruments	INF
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3390979	tu:EquityInstruments	INF
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsFixedCostMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	1385734	tu:EquityInstruments	INF
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	1660679	tu:EquityInstruments	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsVariableCostMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	274945	tu:EquityInstruments	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NotLaterThanOneYearMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsFixedCostMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	1792286	tu:EquityInstruments	INF
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NotLaterThanOneYearMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	1821237	tu:EquityInstruments	INF
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NotLaterThanOneYearMember (label) * tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsVariableCostMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	28951	tu:EquityInstruments	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsFixedCostMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3178020	tu:EquityInstruments	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	3481916	tu:EquityInstruments	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPerformanceRestrictedStockUnitsWithoutMarketConditionsVariableCostMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	303896	tu:EquityInstruments	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	tu:FixedCostPerOtherEquityInstrumentsOutstanding (label)	45.46	iso4217:CAD	2
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NotLaterThanOneYearMember (label)	tu:FixedCostPerOtherEquityInstrumentsOutstanding (label)	40.91	iso4217:CAD	2

Fact Table
Network	41405 - Disclosure - share-based compensation - TELUS International (Cda) Inc. restricted stock units (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusInternationalCdaIncRestrictedStockUnitsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	32299	tu:EquityInstruments	INF
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	163785	tu:EquityInstruments	INF
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	213768	tu:EquityInstruments	INF
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (label)	32299	tu:EquityInstruments	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement (label)	32299	tu:EquityInstruments	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement (label)	2559	tu:EquityInstruments	INF
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	163785	tu:EquityInstruments	INF
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement (label)	374786	tu:EquityInstruments	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement (label)	208	tu:EquityInstruments	INF
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (label)	32299	tu:EquityInstruments	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:NumberOfOtherEquityInstrumentsVestedInSharebasedPaymentArrangement (label)	208	tu:EquityInstruments	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:TelusInternationalCdaIncRestrictedStockUnitsMember (label)	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement (label)	0	xbrli:pure	INF
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:TelusInternationalCdaIncRestrictedStockUnitsMember (label)	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement (label)	1.5	xbrli:pure	INF
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsExercisedInPeriod (label)	24.1	iso4217:USD	2
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsForfeitedAndCancelledInPeriod (label)	24.1	iso4217:USD	2
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod (label)	21.36	iso4217:CAD	2
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod (label)	21.9	iso4217:USD	2
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGrantedInPeriod (label)	26.4	iso4217:USD	2
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested (label)	21.9	iso4217:USD	2
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsNonvested (label)	24.45	iso4217:USD	2
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (label)	21.36	iso4217:CAD	2
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVested (label)	21.36	iso4217:CAD	2
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsCanadianDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVestedInPeriod (label)	21.36	iso4217:CAD	2
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncRestrictedStockUnitsUSDollarDenominatedMember (label)	tu:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsVestedInPeriod (label)	24.1	iso4217:USD	2

Fact Table
Network	41406 - Disclosure - share-based compensation - Employee share purchase plan (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationEmployeeSharePurchasePlanDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:ActualPercentageOfMatchingContributionHighlyCompensatedJobClassificationsToEmployeeSharePurchasePlan (label)	0.35	xbrli:pure	2
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:ActualPercentageOfMatchingContributionHighlyCompensatedJobClassificationsToEmployeeSharePurchasePlan (label)	0.35	xbrli:pure	2
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:ActualPercentageOfMatchingContributionToEmployeeSharePurchasePlan (label)	0.4	xbrli:pure	2
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:ActualPercentageOfMatchingContributionToEmployeeSharePurchasePlan (label)	0.4	xbrli:pure	2
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	Dividend reinvestment in Common Shares	27000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	Dividend reinvestment in Common Shares	31000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate (label)	0.0	xbrli:pure	2
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate (label)	0.0	xbrli:pure	2
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:EmployeeSharePurchasePlanMember (label)	tu:MaximumPercentageOfEmployeeContributionMatchedInEmployeeSharePurchasePlan (label)	0.06	xbrli:pure	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:EmployeeSharePurchasePlanMember (label)	tu:PercentageOfEmployeeContributionHighlyCompensatedToEmployeeSharePurchasePlan (label)	0.01	xbrli:pure	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:EmployeeSharePurchasePlanMember (label)	tu:PercentageOfEmployeeContributionHighlyCompensatedToEmployeeSharePurchasePlan (label)	0.55	xbrli:pure	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:EmployeeSharePurchasePlanMember (label)	tu:PercentageOfEmployeeContributionToEmployeeSharePurchasePlan (label)	0.01	xbrli:pure	INF
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:EmployeeSharePurchasePlanMember (label)	tu:PercentageOfEmployeeContributionToEmployeeSharePurchasePlan (label)	0.2	xbrli:pure	INF
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:EmployeeSharePurchasePlanMember (label)	tu:PercentageOfMatchingContributionToEmployeeSharePurchasePlan (label)	0.2	xbrli:pure	INF
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:EmployeeSharePurchasePlanMember (label)	tu:PercentageOfMatchingContributionToEmployeeSharePurchasePlan (label)	0.4	xbrli:pure	INF

Fact Table
Network	41407 - Disclosure - share-based compensation - General options (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationGeneralOptionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value		Unit	Rounding	Parenthetical Explanations
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:IfrsEmployeeStockOptionMember (label)	tu:VestingLifeOfShareBasedAwards (label)	_2652670
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:IfrsEmployeeStockOptionMember (label)	tu:VestingLifeOfShareBasedAwards (label)	_2653306

Fact Table
Network	41408 - Disclosure - share-based compensation - TELUS Corporation share options (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusCorporationShareOptionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:TelusShareOptionsMember (label)	ifrs-full:ExercisePriceOfOutstandingShareOptions (label)	23.08	iso4217:CAD	2
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:TelusShareOptionsMember (label)	ifrs-full:ExercisePriceOfOutstandingShareOptions (label)	31.69	iso4217:CAD	2
3	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	2375596	tu:EquityInstruments	INF
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	1417693	tu:EquityInstruments	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	740471	tu:EquityInstruments	INF
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	925682	tu:EquityInstruments	INF
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	652926	tu:EquityInstruments	INF
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (label)	19109	tu:EquityInstruments	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement (label)	20388	tu:EquityInstruments	INF
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement (label)	13112	tu:EquityInstruments	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement (label)	3908	tu:EquityInstruments	INF
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	20.75	iso4217:CAD	2
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	21.9	iso4217:CAD	2
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement (label)	15.29	iso4217:CAD	2
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement (label)	16.31	iso4217:CAD	2
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement (label)	24.49	iso4217:CAD	2
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement (label)	27.56	iso4217:CAD	2
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise (label)	41.06	iso4217:CAD	2
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise (label)	44.63	iso4217:CAD	2
20	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	22.96	iso4217:CAD	2
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	24.49	iso4217:CAD	2
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	26.99	iso4217:CAD	2
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusShareOptionsMember (label)	ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions (label)	0.9	tu:Y	1
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	tu:ContractualLifeOfShareBasedAwards (label)	_2649780
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusShareOptionsMember (label)	tu:IntrinsicValueOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	19000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusShareOptionsMember (label)	tu:IntrinsicValueOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	15000000	iso4217:CAD	-6

Fact Table
Network	41409 - Disclosure - share-based compensation - TELUS International (Cda) Inc. share options (Details) (http://www.telus.com/role/DisclosureShareBasedCompensationTelusInternationalCdaIncShareOptionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:ExercisePriceOfOutstandingShareOptions (label)	21.9	iso4217:USD	2
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:ExercisePriceOfOutstandingShareOptions (label)	40.25	iso4217:USD	2
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	573354	tu:Options	INF
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	53832	tu:Options	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	748626	tu:Options	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	53832	tu:Options	INF
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement (label)	573354	tu:Options	INF
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement (label)	53832	tu:Options	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement (label)	175272	tu:Options	INF
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement (label)	30.86	iso4217:USD	2
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement (label)	21.36	iso4217:CAD	2
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement (label)	27.7	iso4217:USD	2
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	30.86	iso4217:USD	2
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	21.36	iso4217:CAD	2
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	30.12	iso4217:USD	2
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement (label)	21.36	iso4217:CAD	2
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions (label)	10.0	tu:Y	1
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions (label)	9.5	tu:Y	1
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncShareOptionsUnitedStatesDollarDenominatedMember (label)	ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions (label)	9.2	tu:Y	1
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaShareOptionsCanadianDollarDenominatedMember (label)	ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions (label)	8.5	tu:Y	1
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaIncShareOptionsMember (label)	tu:ContractualLifeOfShareBasedAwards (label)	_2632824
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BottomOfRangeMember (label) * tu:TelusInternationalCdaIncShareOptionsMember (label)	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement (label)	0	xbrli:pure	INF
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:TopOfRangeMember (label) * tu:TelusInternationalCdaIncShareOptionsMember (label)	tu:VariablePayoutOfAwardsInSharebasedPaymentArrangement (label)	1	xbrli:pure	INF

Fact Table
Network	41501 - Disclosure - employee future benefits - Pension plans (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionPlansDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:PensionPlanForManagementAndProfessionalEmployeesOfTelusCorporationMember (label)	tu:MaximumPercentageOfAnnualIncreaseOfPensionBenefits (label)	0.02	xbrli:pure	INF
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:PreMergerAcquisitionDefinedBenefitPensionPlansMember (label)	tu:NumberOfDefinedBenefitPensionPlans (label)	3	tu:plan	INF
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:PensionPlanForManagementAndProfessionalEmployeesOfTelusCorporationMember (label)	tu:PensionableRemunerationPeriodBasis (label)	_2610486
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPensionPlanMember (label)	tu:PensionableRemunerationPeriodBasis (label)	_2611098
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusEdmontonPensionPlanMember (label)	tu:PensionableRemunerationPeriodBasis (label)	_2611710
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusQuebecDefinedBenefitPensionPlanMember (label)	tu:PensionableRemunerationPeriodBasis (label)	_2612322
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationPensionPlanMember (label)	tu:PensionableRemunerationReferencePeriodBasis (label)	_2612936
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:PensionPlanForManagementAndProfessionalEmployeesOfTelusCorporationMember (label)	tu:PercentageOfIndexationOfAnnualIncreaseInCostLivingIndex (label)	1	xbrli:pure	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPensionPlanMember (label) * ifrs-full:TopOfRangeMember (label)	tu:PercentageOfIndexationOfAnnualIncreaseInCostLivingIndex (label)	0.7	xbrli:pure	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusEdmontonPensionPlanMember (label)	tu:PercentageOfIndexationOfAnnualIncreaseInCostLivingIndex (label)	0.6	xbrli:pure	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusQuebecDefinedBenefitPensionPlanMember (label)	tu:PercentageOfIndexationOfAnnualIncreaseInCostLivingIndex (label)	0	xbrli:pure	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:NonRegisteredNonContributorySupplementaryDefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label)	tu:PercentageToTotalDefinedBenefitPlanObligation (label)	0.05	xbrli:pure	2
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:PensionPlanForManagementAndProfessionalEmployeesOfTelusCorporationMember (label)	tu:PercentageToTotalDefinedBenefitPlanObligation (label)	0.25	xbrli:pure	2
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:PreMergerAcquisitionDefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label)	tu:PercentageToTotalDefinedBenefitPlanObligation (label)	0.01	xbrli:pure	2
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationPensionPlanMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:PercentageToTotalDefinedBenefitPlanObligation (label)	0.5	xbrli:pure	2
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusEdmontonPensionPlanMember (label) * ifrs-full:TopOfRangeMember (label)	tu:PercentageToTotalDefinedBenefitPlanObligation (label)	0.1	xbrli:pure	2
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusQuebecDefinedBenefitPensionPlanMember (label)	tu:PercentageToTotalDefinedBenefitPlanObligation (label)	0.1	xbrli:pure	2

Fact Table
Network	41502 - Disclosure - employee future benefits - Defined contribution pension plans (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsDefinedContributionPensionPlansDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:DefinedContributionEmployerMatchingContributionToEmployeesFivePercentContribution (label)	1	xbrli:pure	INF
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label)	tu:DefinedContributionPercentageOfEmployeesContributionMatchFullyByEmployer (label)	0.05	xbrli:pure	INF
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:BottomOfRangeMember (label)	tu:DefinedContributionPlanAnnualContributionsPerEmployeePercent (label)	0.03	xbrli:pure	INF
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:TopOfRangeMember (label)	tu:DefinedContributionPlanAnnualContributionsPerEmployeePercent (label)	0.06	xbrli:pure	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:DefinedContributionPlanEmployerMatchingContributionPercentOfMatchOverFivePercent (label)	0.8	xbrli:pure	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:NumberDefinedContributionPensionPlans (label)	3	tu:plan	INF

Fact Table
Network	41503 - Disclosure - employee future benefits - Pensions funded status (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionsFundedStatusDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)	-25000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset (label)	-77000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)	-184000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsNetDefinedBenefitLiabilityAsset (label)	-526000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)	70000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset (label)	66000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset (label)	25000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:ContributionsToPlanByPlanParticipantsNetDefinedBenefitLiabilityAsset (label)	22000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)	109000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset (label)	100000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:EffectOfAssetCeilingMember (label)	ifrs-full:GainLossOnChangesInEffectOfLimitingNetDefinedBenefitAssetToAssetCeiling (label)	-41000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:EffectOfAssetCeilingMember (label)	ifrs-full:GainLossOnChangesInEffectOfLimitingNetDefinedBenefitAssetToAssetCeiling (label)	5000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:NetDefinedBenefitLiabilityAssetMember (label)	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	-6000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	-339000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	340000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:NetDefinedBenefitLiabilityAssetMember (label)	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	-6000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	-330000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset (label)	331000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:EffectOfAssetCeilingMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	74000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-8641000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	8620000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:NetDefinedBenefitLiabilityAssetMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	126000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:NetDefinedBenefitLiabilityAssetMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	79000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:EffectOfAssetCeilingMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	115000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-8873000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	8837000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-8758000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NetDefinedBenefitLiabilityAssetMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	381000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:NetDefinedBenefitLiabilityAssetMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	334000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:EffectOfAssetCeilingMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	110000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-9195000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	9419000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-9085000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset (label)	2000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset (label)	-2000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset (label)	-443000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset (label)	443000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset (label)	-450000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label)	ifrs-full:PaymentsFromPlanNetDefinedBenefitLiabilityAsset (label)	450000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	tu:AdministrativeExpenseEffectOnNetBenefitLiabilityAsset (label)	6000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	tu:AdministrativeExpenseEffectOnNetBenefitLiabilityAsset (label)	6000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	tu:ReturnOnPlanAssetsInterestIncomeInExcessOfNotionalInterestIncomeNetDeferredBenefitLiabilityAsset (label)	247000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PlanAssetsMember (label)	tu:ReturnOnPlanAssetsInterestIncomeInExcessOfNotionalInterestIncomeNetDeferredBenefitLiabilityAsset (label)	360000000	iso4217:CAD	-6

Fact Table
Network	41504 - Disclosure - employee future benefits - Pensions funded status presentation in statements of financial position (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionsFundedStatusPresentationInStatementsOfFinancialPositionDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	126000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	79000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:OtherBenefitPlansMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	47000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	381000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	334000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	47000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentProvisionsForEmployeeBenefits (label)	484000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentProvisionsForEmployeeBenefits (label)	537000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan (label)	358000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan (label)	156000000	iso4217:CAD	-6

Fact Table
Network	41505 - Disclosure - employee future benefits - Pension plan expense (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPensionPlanExpenseDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	92000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeBenefitsExpenseMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	92000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	82000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeBenefitsExpenseMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans (label)	82000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsServiceCost (label)	25000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsServiceCost (label)	77000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsServiceCostInOtherComprehensiveIncome (label)	25000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsServiceCostInOtherComprehensiveIncome (label)	77000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsServiceCost (label)	184000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsServiceCost (label)	526000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsServiceCostInOtherComprehensiveIncome (label)	184000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:ActuarialGainsLossesArisingFromChangesInFinancialAssumptionsServiceCostInOtherComprehensiveIncome (label)	526000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DefinedBenefitPlansActuarialGainsLosses (label)	209000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DefinedBenefitPlansActuarialGainsLosses (label)	603000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:DefinedBenefitPlansActuarialGainsLossesInOtherComprehensiveIncome (label)	209000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:DefinedBenefitPlansActuarialGainsLossesInOtherComprehensiveIncome (label)	603000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DefinedBenefitPlansAdministrativeExpense (label)	6000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DefinedBenefitPlansAdministrativeExpense (label)	6000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeBenefitsExpenseMember (label)	tu:DefinedBenefitPlansAdministrativeExpenseInEmployeeBenefitsExpense (label)	6000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeBenefitsExpenseMember (label)	tu:DefinedBenefitPlansAdministrativeExpenseInEmployeeBenefitsExpense (label)	6000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DefinedBenefitPlansCurrentServiceCost (label)	84000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DefinedBenefitPlansCurrentServiceCost (label)	78000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeBenefitsExpenseMember (label)	tu:DefinedBenefitPlansCurrentServiceCostInEmployeeBenefitsExpense (label)	84000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeBenefitsExpenseMember (label)	tu:DefinedBenefitPlansCurrentServiceCostInEmployeeBenefitsExpense (label)	78000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DefinedBenefitPlansInterestEffectOnAssetCeilingLimit (label)	3000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DefinedBenefitPlansInterestEffectOnAssetCeilingLimit (label)	4000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:FinancingCostsMember (label)	tu:DefinedBenefitPlansInterestEffectOnAssetCeilingLimitInFinancingCost (label)	3000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:FinancingCostsMember (label)	tu:DefinedBenefitPlansInterestEffectOnAssetCeilingLimitInFinancingCost (label)	4000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DefinedBenefitPlansPastServiceCost (label)	2000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DefinedBenefitPlansPastServiceCost (label)	-2000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeBenefitsExpenseMember (label)	tu:DefinedBenefitPlansPastServiceCostInEmployeeBenefitsExpense (label)	2000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeBenefitsExpenseMember (label)	tu:DefinedBenefitPlansPastServiceCostInEmployeeBenefitsExpense (label)	-2000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:DefinedBenefitPlansReturnOnPlanAssets (label)	586000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:DefinedBenefitPlansReturnOnPlanAssets (label)	690000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:FinancingCostsMember (label)	tu:DefinedBenefitPlansReturnOnPlanAssetsInFinancingCost (label)	339000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:FinancingCostsMember (label)	tu:DefinedBenefitPlansReturnOnPlanAssetsInFinancingCost (label)	330000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:DefinedBenefitPlansReturnOnPlanAssetsInOtherComprehensiveIncome (label)	247000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:DefinedBenefitPlansReturnOnPlanAssetsInOtherComprehensiveIncome (label)	360000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:ExpenseIncomeFromGainLossOnChangesInEffectOfLimitingNetdefinedBenefitAssetToAssetCeiling (label)	38000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:ExpenseIncomeFromGainLossOnChangesInEffectOfLimitingNetdefinedBenefitAssetToAssetCeiling (label)	-9000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:ExpenseIncomeFromGainLossOnChangesInEffectOfLimitingNetdefinedBenefitAssetToAssetCeilingInOtherComprehensiveIncome (label)	38000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:ExpenseIncomeFromGainLossOnChangesInEffectOfLimitingNetdefinedBenefitAssetToAssetCeilingInOtherComprehensiveIncome (label)	-9000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:InterestExpenseFromDefinedBenefitObligationsAccrued (label)	340000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:InterestExpenseFromDefinedBenefitObligationsAccrued (label)	331000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:FinancingCostsMember (label)	tu:InterestExpenseFromDefinedBenefitObligationsAccruedInFinancingCost (label)	340000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:FinancingCostsMember (label)	tu:InterestExpenseFromDefinedBenefitObligationsAccruedInFinancingCost (label)	331000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:NetInterestAndReturnOnPlanAssets (label)	243000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:NetInterestAndReturnOnPlanAssets (label)	355000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:FinancingCostsMember (label)	tu:NetInterestAndReturnOnPlanAssetsInFinancingCost (label)	4000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:FinancingCostsMember (label)	tu:NetInterestAndReturnOnPlanAssetsInFinancingCost (label)	5000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:NetInterestAndReturnOnPlanAssetsInOtherComprehensiveIncome (label)	247000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:NetInterestAndReturnOnPlanAssetsInOtherComprehensiveIncome (label)	360000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PostemploymentBenefitCostsDefinedBenefitPlans (label)	96000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PostemploymentBenefitCostsDefinedBenefitPlans (label)	321000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:FinancingCostsMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost (label)	4000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:FinancingCostsMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost (label)	5000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:IfrsOtherComprehensiveIncomeMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInOtherComprehensiveIncome (label)	234000000	iso4217:CAD	-6

Fact Table
Network	41506 - Disclosure - employee future benefits - Disaggregation of defined benefit pension (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsDisaggregationOfDefinedBenefitPensionDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	8620000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	126000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	79000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	8837000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	7610000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	1227000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	1034000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:UnfundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	193000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanActiveMembersMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	2140000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanDeferredMembersMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	557000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanPensionersMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	6140000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-8758000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-7968000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-790000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-790000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-358000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	437000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	244000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:UnfundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	193000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	381000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	334000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	9419000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	8116000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	1303000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	1099000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:UnfundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	204000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanActiveMembersMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	2285000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanDeferredMembersMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	560000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:PresentValueOfDefinedBenefitObligationMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanPensionersMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	6574000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-9085000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-8272000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-813000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:PlanAssetsMemberNetOfEffectOfAssetCeilingMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-813000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	-156000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	490000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	286000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:UnfundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	ifrs-full:LiabilityAssetOfDefinedBenefitPlans (label)	204000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyPosition (label)	253000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyPosition (label)	320000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyPosition (label)	-67000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyPosition (label)	-67000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyRatios (label)	0.92	xbrli:pure	2
43	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualSolvencyRatios (label)	1.05	xbrli:pure	2
44	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualThreeYearSolvencyRatios (label)	0.92	xbrli:pure	2
45	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985AnnualThreeYearSolvencyRatios (label)	1.03	xbrli:pure	2
46	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985CompositeWeightedAverageDiscountRate (label)	0.031	xbrli:pure	4
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985CompositeWeightedAverageDiscountRate (label)	0.03	xbrli:pure	4
48	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985CurrentYearInterimSolvencyPosition (label)	294000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985DecreaseInSolvencyPositionDueToHypotheticalDecreaseOfBasisPointsInCompositeWeightedAverageDiscountRate (label)	303000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985DecreaseInSolvencyPositionDueToHypotheticalDecreaseOfBasisPointsInCompositeWeightedAverageDiscountRate (label)	316000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985HypotheticalDecreaseOfBasisPointsInCompositeWeightedAverageDiscountRate (label)	0.0025	xbrli:pure	4
52	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985HypotheticalDecreaseOfBasisPointsInCompositeWeightedAverageDiscountRate (label)	0.0025	xbrli:pure	4
53	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedSolvencyRatios (label)	0.93	xbrli:pure	2
54	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedSolvencyRatios (label)	1.07	xbrli:pure	2
55	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedSolvencyRatios (label)	0.9	xbrli:pure	2
56	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedSolvencyRatios (label)	1.05	xbrli:pure	2
57	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedThreeYearSolvencyRatios (label)	0.93	xbrli:pure	2
58	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedThreeYearSolvencyRatios (label)	1.04	xbrli:pure	2
59	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedThreeYearSolvencyRatios (label)	0.93	xbrli:pure	2
60	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimEstimatedThreeYearSolvencyRatios (label)	1.04	xbrli:pure	2
61	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlanFundingStatusMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimSolvencyPosition (label)	255000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithAssetsInExcessOfObligationsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimSolvencyPosition (label)	335000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:DefinedBenefitPlansWithObligationsInExcessOfAssetsMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimSolvencyPosition (label)	-80000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * tu:FundedDefinedBenefitPlanPensionPlansMember (label) * tu:DefinedBenefitPlanParticipantsStatusMember (label)	tu:PensionBenefitsStandardsRegulations1985InterimSolvencyPosition (label)	-80000000	iso4217:CAD	-6

Fact Table
Network	41507 - Disclosure - employee future benefits - Fair value measurements (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsFairValueMeasurementsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets (label)	31000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets (label)	31000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets (label)	31000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:AssetbackedSecuritiesAmountContributedToFairValueOfPlanAssets (label)	31000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	1151000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	29000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	1122000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	486000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	38000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssets (label)	448000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CorporateLoansMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1317000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CorporateLoansMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1317000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:MortgagesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1107000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:MortgagesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1107000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:GovernmentalSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1463000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:GovernmentalSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1362000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:GovernmentalSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	101000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CorporateLoansMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1208000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CorporateLoansMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1208000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:MortgagesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1659000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:MortgagesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1659000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:GovernmentalSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1512000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:GovernmentalSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1389000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:GovernmentalSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:DebtInstrumentsAmountContributedToFairValueOfPlanAssets (label)	123000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:CountryOfDomicileMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1172000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:CountryOfDomicileMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1135000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:CountryOfDomicileMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	37000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1876000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1189000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	687000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:CountryOfDomicileMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1385000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:CountryOfDomicileMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1129000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:CountryOfDomicileMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	256000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1867000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	853000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:EquityInstrumentsAmountContributedToFairValueOfPlanAssets (label)	1014000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:PlanAssetsAtFairValue (label)	8873000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:PlanAssetsAtFairValue (label)	3715000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:PlanAssetsAtFairValue (label)	5158000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:PlanAssetsAtFairValue (label)	9195000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level1OfFairValueHierarchyMember (label)	ifrs-full:PlanAssetsAtFairValue (label)	3409000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:PlanAssetsAtFairValue (label)	5786000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets (label)	756000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets (label)	756000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets (label)	1047000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label) * ifrs-full:Level2And3OfFairValueHierarchyMember (label)	ifrs-full:PropertyAmountContributedToFairValueOfPlanAssets (label)	1047000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	tu:FairValueOfPlanAssetsAfterEffectOfAssetCeiling (label)	8758000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	tu:FairValueOfPlanAssetsAfterEffectOfAssetCeiling (label)	9085000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	tu:PensionBenefitTrustsAdministeredWithNoProhibitedInvestmentsFairValue (label)	3000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	tu:PensionBenefitTrustsAdministeredWithNoProhibitedInvestmentsFairValue (label)	3000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	tu:PlanAssetsEffectOfAssetCeiling (label)	115000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:GeographicalAreasMember (label)	tu:PlanAssetsEffectOfAssetCeiling (label)	110000000	iso4217:CAD	-6

Fact Table
Network	41508 - Disclosure - employee future benefits - Future benefit payments (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsFutureBenefitPaymentsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:LaterThanFiveYearsAndNotLaterThanTenYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	2440000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	471000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	454000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	465000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	458000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:NotLaterThanOneYearMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	446000000	iso4217:CAD	-6

Fact Table
Network	41509 - Disclosure - employee future benefits - Plan investment strategies and policies (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsPlanInvestmentStrategiesAndPoliciesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation (label)	13.6	tu:Y	1
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OtherBenefitPlansMember (label)	ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation (label)	7.3	tu:Y	1
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation (label)	13.9	tu:Y	1
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherBenefitPlansMember (label)	ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation (label)	6.8	tu:Y	1
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DebtSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.4	xbrli:pure	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:DebtSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.75	xbrli:pure	INF
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.2	xbrli:pure	INF
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:ForeignCountriesMember (label) * ifrs-full:TopOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.3	xbrli:pure	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.2	xbrli:pure	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.5	xbrli:pure	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:InvestmentPropertyMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.05	xbrli:pure	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:InvestmentPropertyMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.25	xbrli:pure	INF
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherAssetsMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0	xbrli:pure	INF
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherAssetsMember (label) * tu:DefinedBenefitPensionPlansMember (label) * ifrs-full:TopOfRangeMember (label)	tu:IfrsDefinedBenefitPlanTargetPlanAssetAllocation (label)	0.1	xbrli:pure	INF
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:DebtSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	0.57	xbrli:pure	2
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EquityInvestmentsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	0.34	xbrli:pure	2
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:InvestmentPropertyMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	0.09	xbrli:pure	2
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	1.0	xbrli:pure	2
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:DebtSecuritiesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	0.53	xbrli:pure	2
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EquityInvestmentsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	0.35	xbrli:pure	2
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:InvestmentPropertyMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	0.12	xbrli:pure	2
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label)	tu:IfrsDefinedBenefitPlanWeightedAverageAssetAllocations (label)	1.0	xbrli:pure	2

Fact Table
Network	41510 - Disclosure - employee future benefits - Employer contributions (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsEmployerContributionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan (label)	50000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DefinedBenefitPensionPlansMember (label)	tu:DefinedBenefitPlanUndrawnLettersOfCredit (label)	175000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DefinedBenefitPensionPlansMember (label)	tu:DefinedBenefitPlanUndrawnLettersOfCredit (label)	188000000	iso4217:CAD	-6

Fact Table
Network	41511 - Disclosure - employee future benefits - Assumptions (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsAssumptionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:ActuarialAssumptionOfDiscountRates (label)	0.038	xbrli:pure	4
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:ActuarialAssumptionOfDiscountRates (label)	0.034	xbrli:pure	4
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)	0.0251	xbrli:pure	4
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases (label)	0.027	xbrli:pure	4
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionOfDiscountRatesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	310000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	-27000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:ActuarialAssumptionOfLifeExpectancyMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	228000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionOfDiscountRatesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	337000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	-34000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:ActuarialAssumptionOfLifeExpectancyMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	270000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption (label)	0.0025	xbrli:pure	4
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption (label)	0.0025	xbrli:pure	4
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:ActuarialAssumptionOfDiscountRatesCurrentServiceCostInSubsequentYear (label)	0.04	xbrli:pure	4
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:ActuarialAssumptionOfDiscountRatesCurrentServiceCostInSubsequentYear (label)	0.035	xbrli:pure	4
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:ActuarialAssumptionOfDiscountRatesNetBenefitCosts (label)	0.04	xbrli:pure	4
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:ActuarialAssumptionOfDiscountRatesNetBenefitCosts (label)	0.038	xbrli:pure	4
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:ActuarialAssumptionOfRateOfFutureIncreaseNetBenefitCosts (label)	0.03	xbrli:pure	4
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:ActuarialAssumptionOfRateOfFutureIncreaseNetBenefitCosts (label)	0.0251	xbrli:pure	4
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ActuarialAssumptionOfDiscountRatesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	17000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	-3000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ActuarialAssumptionOfLifeExpectancyMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	10000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ActuarialAssumptionOfDiscountRatesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	16000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	-3000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ActuarialAssumptionOfLifeExpectancyMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:IncreaseDecreaseInDefinedBenefitPlanExpenseDueToReasonablyPossibleDecreaseInActuarialAssumption (label)	11000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:PeriodOfReasonablyPossibleIncreaseInLifeExpectancy (label)	_2432410
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ActuarialAssumptionsMember (label) * tu:DefinedBenefitPensionPlansMember (label)	tu:PeriodOfReasonablyPossibleIncreaseInLifeExpectancy (label)	_2433050

Fact Table
Network	41512 - Disclosure - employee future benefits - Defined contribution pension plans expense (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsDefinedContributionPensionPlansExpenseDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	130000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	89000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	41000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans (label)	88000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:EstimateFutureContributionToPostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans (label)	25000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PostemploymentBenefitExpenseDefinedContributionPlansOther (label)	68000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:PostemploymentBenefitExpenseDefinedContributionPlansOther (label)	63000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	tu:PostemploymentBenefitExpenseDefinedContributionPlansOther (label)	5000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PostemploymentBenefitExpenseDefinedContributionPlansOther (label)	65000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans (label)	62000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TraditionalMember (label)	tu:PostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans (label)	26000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TransformativeCompensationMember (label)	tu:PostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans (label)	36000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PostemploymentBenefitExpenseDefinedContributionPlansUnionPensionAndPublicServicePlans (label)	23000000	iso4217:CAD	-6

Fact Table
Network	41513 - Disclosure - employee future benefits - Other defined benefit plans (Details) (http://www.telus.com/role/DisclosureEmployeeFutureBenefitsOtherDefinedBenefitPlansDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label) * ifrs-full:LaterThanFiveYearsAndNotLaterThanTenYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	7000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	2000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	2000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	2000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	2000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:OtherBenefitPlansMember (label) * ifrs-full:NotLaterThanOneYearMember (label)	tu:EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans (label)	2000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:OtherDefinedBenefits (label)	1000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OtherBenefitPlansMember (label)	tu:OtherDefinedBenefits (label)	1000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherBenefitPlansMember (label)	tu:OtherDefinedBenefits (label)	0	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OtherBenefitPlansMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost (label)	2000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherBenefitPlansMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInFinancingCost (label)	1000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OtherBenefitPlansMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInOtherComprehensiveIncome (label)	0	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherBenefitPlansMember (label)	tu:PostemploymentBenefitCostsDefinedBenefitPlansInOtherComprehensiveIncome (label)	0	iso4217:CAD	-6

Fact Table
Network	41601 - Disclosure - restructuring and other costs (Details) (http://www.telus.com/role/DisclosureRestructuringAndOtherCostsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TransformativeCompensationMember (label)	tu:RequisiteVestingServicePeriod (label)	_2387674
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:RestructuringAndOtherCosts (label)	479000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OtherCostsMember (label)	tu:RestructuringAndOtherCosts (label)	305000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:RestructuringCostsMember (label)	tu:RestructuringAndOtherCosts (label)	174000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:RestructuringAndOtherCosts (label)	139000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherCostsMember (label)	tu:RestructuringAndOtherCosts (label)	47000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:RestructuringCostsMember (label)	tu:RestructuringAndOtherCosts (label)	92000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:RestructuringCostsEmployeeBenefitsExpense (label)	417000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OtherCostsMember (label)	tu:RestructuringCostsEmployeeBenefitsExpense (label)	305000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:RestructuringCostsMember (label)	tu:RestructuringCostsEmployeeBenefitsExpense (label)	112000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:RestructuringCostsEmployeeBenefitsExpense (label)	36000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherCostsMember (label)	tu:RestructuringCostsEmployeeBenefitsExpense (label)	10000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:RestructuringCostsMember (label)	tu:RestructuringCostsEmployeeBenefitsExpense (label)	26000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:RestructuringCostsGoodsAndServicesPurchased (label)	62000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:RestructuringCostsMember (label)	tu:RestructuringCostsGoodsAndServicesPurchased (label)	62000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:RestructuringCostsGoodsAndServicesPurchased (label)	103000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OtherCostsMember (label)	tu:RestructuringCostsGoodsAndServicesPurchased (label)	37000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:RestructuringCostsMember (label)	tu:RestructuringCostsGoodsAndServicesPurchased (label)	66000000	iso4217:CAD	-6

Fact Table
Network	41701 - Disclosure - property, plant and equipment (Details) (http://www.telus.com/role/DisclosurePropertyPlantAndEquipmentDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	2000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	1000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	1000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	42000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	8000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	25000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment (label)	9000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	2318000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	45000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	762000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	39000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	1472000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	2493000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	51000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	972000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	44000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment (label)	1426000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment (label)	436000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment (label)	184000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1564000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-1564000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-99000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-1357000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-108000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	1617000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-1617000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-106000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-1396000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:DepreciationPropertyPlantAndEquipment (label)	-115000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-1012000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-73000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-758000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-181000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	1040000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	78000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	739000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	223000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-1828000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-58000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-1708000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	-62000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	1842000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	63000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:LandMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	7000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	1724000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment (label)	48000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-21890000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-1810000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-19351000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-729000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	31626000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	2847000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:LandMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	55000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	27191000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	1120000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	413000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:PropertyPlantAndEquipment (label)	10464000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-22442000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-1836000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-19950000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-656000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	32906000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	2954000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:LandMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	55000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	28284000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	1021000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	592000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	1118000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LandMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	55000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	8334000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	365000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2016-12-31	us-gaap:AssetUnderConstructionMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	592000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:PropertyPlantAndEquipment (label)	11368000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-22231000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-1884000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-19638000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	-709000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	33599000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	3077000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:LandMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	48000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	28724000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	1095000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	655000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BuildingsMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	1193000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LandMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	48000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	9086000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	386000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2017-12-31	us-gaap:AssetUnderConstructionMember (label)	ifrs-full:PropertyPlantAndEquipment (label)	655000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:PropertyPlantAndEquipment (label)	10500000000	iso4217:CAD	-8
90	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AdditionsInRespectOfAssetRetirementObligations (label)	-40000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AdditionsInRespectOfAssetRetirementObligations (label)	7000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	139000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	1070000000	iso4217:CAD	-6
94	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	84000000	iso4217:CAD	-6
95	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	-1293000000	iso4217:CAD	-6
96	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:BuildingsMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	127000000	iso4217:CAD	-6
97	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:NetworkInfrastructureMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	1167000000	iso4217:CAD	-6
98	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	69000000	iso4217:CAD	-6
99	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * us-gaap:AssetUnderConstructionMember (label)	tu:AssetsUnderConstructionPutIntoService (label)	-1363000000	iso4217:CAD	-6

Fact Table
Network	41801 - Disclosure - intangible assets and goodwill (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	38000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	4000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	22000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	16000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	12000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	16000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	668000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	101000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	433000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	235000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	134000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsAndGoodwill (label)	235000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	793000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	50000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	4000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	793000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	575000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	629000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	164000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	617000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	74000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	5000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	617000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	538000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill (label)	617000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	436000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	4000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	43000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	483000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	500000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	4000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	48000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill (label)	552000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:ContractualCommitmentsForAcquisitionOfIntangibleAssets (label)	82000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:ContractualCommitmentsForAcquisitionOfIntangibleAssets (label)	36000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-144000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-143000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-1000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-144000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-144000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	91000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	137000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	3000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	91000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	140000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-49000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-265000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-202000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-2000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-265000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-61000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	-265000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	271000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	209000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	1000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	271000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	61000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:DisposalsAndRetirementsIntangibleAssetsAndGoodwill (label)	271000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:Goodwill (label)	3787000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:Goodwill (label)	4217000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedImpairmentMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:Goodwill (label)	0	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:Goodwill (label)	3800000000	iso4217:CAD	-8
69	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill (label)	4000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill (label)	4000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill (label)	-3000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsAndGoodwill (label)	-3000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3439000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-2739000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-56000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-364000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3075000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-280000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3075000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	17185000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	3801000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	90000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4125000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	13060000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	216000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	473000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4580000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	8480000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	14151000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3778000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3032000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-59000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-364000000	iso4217:CAD	-6
94	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3414000000	iso4217:CAD	-6
95	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-323000000	iso4217:CAD	-6
96	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3414000000	iso4217:CAD	-6
97	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	17929000000	iso4217:CAD	-6
98	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4295000000	iso4217:CAD	-6
99	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	93000000	iso4217:CAD	-6
100	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4151000000	iso4217:CAD	-6
101	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	13778000000	iso4217:CAD	-6
102	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	212000000	iso4217:CAD	-6
103	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	485000000	iso4217:CAD	-6
104	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	5085000000	iso4217:CAD	-6
105	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	8693000000	iso4217:CAD	-6
106	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	1263000000	iso4217:CAD	-6
107	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	34000000	iso4217:CAD	-6
108	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	3787000000	iso4217:CAD	-6
109	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	10364000000	iso4217:CAD	-6
110	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	212000000	iso4217:CAD	-6
111	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	162000000	iso4217:CAD	-6
112	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	1671000000	iso4217:CAD	-6
113	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	8693000000	iso4217:CAD	-6
114	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	14875000000	iso4217:CAD	-6
115	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-4065000000	iso4217:CAD	-6
116	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3330000000	iso4217:CAD	-6
117	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-61000000	iso4217:CAD	-6
118	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-364000000	iso4217:CAD	-6
119	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3701000000	iso4217:CAD	-6
120	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-310000000	iso4217:CAD	-6
121	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AccumulatedDepreciationAndAmortisationMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	-3701000000	iso4217:CAD	-6
122	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	18940000000	iso4217:CAD	-6
123	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4667000000	iso4217:CAD	-6
124	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	97000000	iso4217:CAD	-6
125	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4581000000	iso4217:CAD	-6
126	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	14359000000	iso4217:CAD	-6
127	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	344000000	iso4217:CAD	-6
128	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	558000000	iso4217:CAD	-6
129	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	5666000000	iso4217:CAD	-6
130	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	8693000000	iso4217:CAD	-6
131	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	1337000000	iso4217:CAD	-6
132	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	36000000	iso4217:CAD	-6
133	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:GoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	4217000000	iso4217:CAD	-6
134	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsOtherThanGoodwillMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	10658000000	iso4217:CAD	-6
135	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	344000000	iso4217:CAD	-6
136	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:CustomerContractsRelatedCustomerRelationshipsAndLeaseholdInterestsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	248000000	iso4217:CAD	-6
137	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:IntangibleAssetsSubjectToAmortizationMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	1965000000	iso4217:CAD	-6
138	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	ifrs-full:IntangibleAssetsAndGoodwill (label)	8693000000	iso4217:CAD	-6
139	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	tu:IncreaseDecreaseThroughAssetsUnderConstructionPutIntoService (label)	577000000	iso4217:CAD	-6
140	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:CopyrightsPatentsAndOtherIndustrialPropertyRightsServiceAndOperatingRightsMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	tu:IncreaseDecreaseThroughAssetsUnderConstructionPutIntoService (label)	2000000	iso4217:CAD	-6
141	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	tu:IncreaseDecreaseThroughAssetsUnderConstructionPutIntoService (label)	-579000000	iso4217:CAD	-6
142	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:ComputerSoftwareMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	tu:IncreaseDecreaseThroughAssetsUnderConstructionPutIntoService (label)	406000000	iso4217:CAD	-6
143	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:GrossCarryingAmountMember (label) * ifrs-full:IntangibleAssetsUnderDevelopmentMember (label) * ifrs-full:IntangibleAssetsWithIndefiniteUsefulLifeMember (label)	tu:IncreaseDecreaseThroughAssetsUnderConstructionPutIntoService (label)	-406000000	iso4217:CAD	-6
144	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:IntangibleAssetsAndGoodwillMember (label) * ifrs-full:GSMLicencesMember (label)	tu:RenewalOfSpectrumLicenses (label)	_2324466

Fact Table
Network	41802 - Disclosure - intangible assets and goodwill - Business acquisitions (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillBusinessAcquisitionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)	33000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)	690000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)	266000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)	250000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred (label)	141000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate (label)	4000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate (label)	3000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:CashTransferred (label)	31000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:CashTransferred (label)	545000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:CashTransferred (label)	306000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:CashTransferred (label)	150000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:CashTransferred (label)	58000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate (label)	40000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate (label)	40000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate (label)	48000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate (label)	16000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate (label)	4000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:CurrentAssetsRecognisedAsOfAcquisitionDate (label)	27000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	35000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	10000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	5000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:CurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	19000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate (label)	23000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate (label)	18000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate (label)	5000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:EquityInterestsOfAcquirer (label)	100000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:EquityInterestsOfAcquirer (label)	100000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:FairValueOfAcquiredReceivables (label)	32000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:FairValueOfAcquiredReceivables (label)	9000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:FairValueOfAcquiredReceivables (label)	3000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:FairValueOfAcquiredReceivables (label)	20000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForBusinessCombinationsMember (label)	ifrs-full:Goodwill (label)	3787000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForBusinessCombinationsMember (label)	ifrs-full:Goodwill (label)	4217000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:Goodwill (label)	15000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:Goodwill (label)	433000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForBusinessCombinationsMember (label)	ifrs-full:Goodwill (label)	3800000000	iso4217:CAD	-8
42	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:Goodwill (label)	207000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:Goodwill (label)	126000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:Goodwill (label)	85000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	18000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	257000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	59000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	124000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	56000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	16000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label) * ifrs-full:ComputerSoftwareMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	101000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	134000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	54000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label) * ifrs-full:ComputerSoftwareMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	101000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	26000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label)	ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate (label)	38000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate (label)	18000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate (label)	277000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate (label)	77000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate (label)	128000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate (label)	54000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	33000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	24000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	3000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate (label)	6000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:PercentageOfVotingEquityInterestsAcquired (label)	1	xbrli:pure	INF
67	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	ifrs-full:PercentageOfVotingEquityInterestsAcquired (label)	1	xbrli:pure	INF
68	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:PercentageOfVotingEquityInterestsAcquired (label)	1	xbrli:pure	INF
69	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:PercentageOfVotingEquityInterestsAcquired (label)	0.55	xbrli:pure	INF
70	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	2000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	25000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	9000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label) * tu:BuildingsAndLeaseholdImprovementsMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	8000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label) * ifrs-full:NetworkInfrastructureMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	23000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label) * ifrs-full:OtherPropertyPlantAndEquipmentMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	8000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label) * tu:BuildingsAndLeaseholdImprovementsMember (label)	ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate (label)	8000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate (label)	21000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate (label)	19000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForBusinessCombinationsMember (label) * ifrs-full:ComputerSoftwareMember (label)	ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill (label)	P10Y
83	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForBusinessCombinationsMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label) * ifrs-full:BottomOfRangeMember (label)	ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill (label)	P8Y
84	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForBusinessCombinationsMember (label) * ifrs-full:CustomerrelatedIntangibleAssetsMember (label) * ifrs-full:TopOfRangeMember (label)	ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill (label)	P10Y
85	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	tu:AccountsPayableAndAccruedLiabilitiesTransferred (label)	2000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:AccountsPayableAndAccruedLiabilitiesTransferred (label)	2000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	tu:AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate (label)	7000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate (label)	2000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	tu:AdvanceBillingsAndCustomerDepositsAsOfAcquisitionDate (label)	4000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:AdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination (label)	23000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	tu:AdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination (label)	23000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:CurrentProvisionsRecognizedAsOfAcquisitionDate (label)	7000000	iso4217:CAD	-6
94	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:CurrentProvisionsRecognizedAsOfAcquisitionDate (label)	7000000	iso4217:CAD	-6
95	0000868675 (http://www.sec.gov/CIK)	2017-08-31 to 2017-08-31	tu:VoxproLimitedMember (label)	tu:GainLossOnAdvancesToAcquiredEntityPriorToAcquisitionSettledAsConsiderationInBusinessCombination (label)	0	iso4217:CAD	-6
96	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed (label)	33000000	iso4217:CAD	-6
97	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed (label)	690000000	iso4217:CAD	-6
98	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed (label)	266000000	iso4217:CAD	-6
99	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed (label)	250000000	iso4217:CAD	-6
100	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	tu:GoodwillAndIdentifiableAssetsAcquiredLiabilitiesAssumed (label)	141000000	iso4217:CAD	-6
101	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	tu:IdentifiableAssetsAcquired (label)	19000000	iso4217:CAD	-6
102	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:IdentifiableAssetsAcquired (label)	325000000	iso4217:CAD	-6
103	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:IdentifiableAssetsAcquired (label)	93000000	iso4217:CAD	-6
104	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	tu:IdentifiableAssetsAcquired (label)	132000000	iso4217:CAD	-6
105	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	tu:IdentifiableAssetsAcquired (label)	81000000	iso4217:CAD	-6
106	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
107	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate (label)	68000000	iso4217:CAD	-6
108	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate (label)	34000000	iso4217:CAD	-6
109	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate (label)	8000000	iso4217:CAD	-6
110	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	tu:IdentifiableLiabilitiesAssumedAsOfAcquisitionDate (label)	25000000	iso4217:CAD	-6
111	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:NonCurrentProvisionsRecognizedAsOfAcquisitionDate (label)	9000000	iso4217:CAD	-6
112	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:NonCurrentProvisionsRecognizedAsOfAcquisitionDate (label)	6000000	iso4217:CAD	-6
113	0000868675 (http://www.sec.gov/CIK)	2017-05-15	tu:KrollComputerSystemsIncMember (label)	tu:NonCurrentProvisionsRecognizedAsOfAcquisitionDate (label)	3000000	iso4217:CAD	-6
114	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:NumberOfRetailLocationRightsAcquired (label)	15	tu:item	INF
115	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:AggregatedIndividuallyImmaterialBusinessCombinationsMember (label)	tu:OtherCurrentAssetsRecognisedAsOfAcquisitionDate (label)	1000000	iso4217:CAD	-6
116	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:OtherCurrentAssetsRecognisedAsOfAcquisitionDate (label)	12000000	iso4217:CAD	-6
117	0000868675 (http://www.sec.gov/CIK)	2017-04-01	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	tu:OtherCurrentAssetsRecognisedAsOfAcquisitionDate (label)	7000000	iso4217:CAD	-6
118	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	tu:OtherCurrentAssetsRecognisedAsOfAcquisitionDate (label)	4000000	iso4217:CAD	-6
119	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForBusinessCombinationsMember (label)	tu:OtherIncomeChangeInBusinessCombinationRelatedAccruedReceivable (label)	26000000	iso4217:CAD	-6
120	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:BusinessCombinationsMember (label)	tu:ProvisionsTransferred (label)	60000000	iso4217:CAD	-6
121	0000868675 (http://www.sec.gov/CIK)	2017-08-31	tu:VoxproLimitedMember (label)	tu:ProvisionsTransferred (label)	60000000	iso4217:CAD	-6
122	0000868675 (http://www.sec.gov/CIK)	2017-08-31 to 2017-08-31	tu:VoxproLimitedMember (label)	tu:VotingEquityInterestsIncludedInWrittenPutOptionProvidedToShareholdersPercentage (label)	0.45	xbrli:pure	INF

Fact Table
Network	41803 - Disclosure - intangible assets and goodwill - Business acquisition pro forma information (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillBusinessAcquisitionProFormaInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:BasicEarningsLossPerShare (label)	2.06	iso4217:CAD/xbrli:shares	2
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:BasicEarningsLossPerShare (label)	2.46	iso4217:CAD/xbrli:shares	2
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:DilutedEarningsLossPerShare (label)	2.06	iso4217:CAD/xbrli:shares	2
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:DilutedEarningsLossPerShare (label)	2.46	iso4217:CAD/xbrli:shares	2
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:KrollComputerSystemsIncMember (label)	ifrs-full:ProfitLossOfAcquiree (label)	0	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:ProfitLossOfAcquiree (label)	20000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:VoxproLimitedMember (label)	ifrs-full:ProfitLossOfAcquiree (label)	0	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLossOfCombinedEntity (label)	1474000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:Revenue (label)	12799000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:Revenue (label)	13304000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:KrollComputerSystemsIncMember (label)	ifrs-full:RevenueOfAcquiree (label)	17000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ManitobaTelecomServicesIncPostpaidWirelessMember (label)	ifrs-full:RevenueOfAcquiree (label)	49000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:VoxproLimitedMember (label)	ifrs-full:RevenueOfAcquiree (label)	51000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:RevenueOfCombinedEntity (label)	13426000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IfrsBusinessAcquisitionProFormaEarningsPerShareBasic (label)	2.45	iso4217:CAD/xbrli:shares	2
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IfrsBusinessAcquisitionProFormaEarningsPerShareDiluted (label)	2.45	iso4217:CAD/xbrli:shares	2

Fact Table
Network	41804 - Disclosure - intangible assets and goodwill - Business acquisitions - subsequent to reporting period (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillBusinessAcquisitionsSubsequentToReportingPeriodDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2018-01-04	tu:AlarmForceIndustriesIncMember (label) * ifrs-full:MajorBusinessCombinationMember (label)	ifrs-full:CashTransferred (label)	69000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2018-02-06	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:TelusInternationalCdaIncMember (label)	ifrs-full:CashTransferred (label)	115000000	iso4217:USD	-6
3	0000868675 (http://www.sec.gov/CIK)	2018-02-06	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:TelusInternationalCdaIncMember (label)	ifrs-full:CashTransferred (label)	144000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2018-02-06	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:TelusInternationalCdaIncMember (label)	ifrs-full:EquityInterestsOfAcquirer (label)	15000000	iso4217:USD	-6
5	0000868675 (http://www.sec.gov/CIK)	2018-02-06	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:TelusInternationalCdaIncMember (label)	ifrs-full:EquityInterestsOfAcquirer (label)	19000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2018-02-08	tu:AlarmForceIndustriesIncMember (label) * ifrs-full:NonadjustingEventsMember (label) * ifrs-full:BottomOfRangeMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	10000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2018-02-08	tu:AlarmForceIndustriesIncMember (label) * ifrs-full:NonadjustingEventsMember (label) * ifrs-full:TopOfRangeMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	20000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2018-02-08	tu:XavientInformationSystemsMember (label) * ifrs-full:NonadjustingEventsMember (label) * ifrs-full:BottomOfRangeMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	75000000	iso4217:USD	-6
9	0000868675 (http://www.sec.gov/CIK)	2018-02-08	tu:XavientInformationSystemsMember (label) * ifrs-full:NonadjustingEventsMember (label) * ifrs-full:BottomOfRangeMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	95000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2018-02-08	tu:XavientInformationSystemsMember (label) * ifrs-full:NonadjustingEventsMember (label) * ifrs-full:TopOfRangeMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	100000000	iso4217:USD	-6
11	0000868675 (http://www.sec.gov/CIK)	2018-02-08	tu:XavientInformationSystemsMember (label) * ifrs-full:NonadjustingEventsMember (label) * ifrs-full:TopOfRangeMember (label)	ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed (label)	125000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2018-03-31	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:ForecastScenarioMember (label)	ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate (label)	120000000	iso4217:USD	-6
13	0000868675 (http://www.sec.gov/CIK)	2018-03-31	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:ForecastScenarioMember (label)	ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate (label)	150000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2018-02-06	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label) * tu:TelusInternationalCdaIncMember (label)	ifrs-full:PercentageOfVotingEquityInterestsAcquired (label)	0.65	xbrli:pure	2
15	0000868675 (http://www.sec.gov/CIK)	2018-01-04	tu:AlarmForceIndustriesIncMember (label) * ifrs-full:MajorBusinessCombinationMember (label)	tu:PercentageOfBusinessCustomersAssetsAndOperationsAcquired (label)	1	xbrli:pure	INF
16	0000868675 (http://www.sec.gov/CIK)	2018-02-06 to 2018-02-06	tu:XavientInformationSystemsMember (label) * ifrs-full:MajorBusinessCombinationMember (label)	tu:VotingEquityInterestsIncludedInWrittenPutOptionProvidedToShareholdersPercentage (label)	0.35	xbrli:pure	2

Fact Table
Network	41805 - Disclosure - intangible assets and goodwill - Intangible assets with indefinite lives and goodwill - spectrum licences and impairment testing (Details) (http://www.telus.com/role/DisclosureIntangibleAssetsAndGoodwillIntangibleAssetsWithIndefiniteLivesAndGoodwillSpectrumLicencesAndImpairmentTestingDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label)	ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections (label)	0.07	xbrli:pure	4
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label)	ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections (label)	0.07	xbrli:pure	3
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelessCashGeneratingUnitMember (label)	ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections (label)	0.02	xbrli:pure	4
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelineCashGeneratingUnitMember (label)	ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections (label)	0.02	xbrli:pure	4
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelessCashGeneratingUnitMember (label)	ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections (label)	0.0225	xbrli:pure	4
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelineCashGeneratingUnitMember (label)	ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections (label)	0.0225	xbrli:pure	4
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label)	ifrs-full:Goodwill (label)	3787000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelessCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:Goodwill (label)	2647000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelineCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:Goodwill (label)	1140000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:Goodwill (label)	3787000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label)	ifrs-full:Goodwill (label)	4217000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelessCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:Goodwill (label)	2860000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelineCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:Goodwill (label)	1357000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:Goodwill (label)	4217000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label)	ifrs-full:Goodwill (label)	3800000000	iso4217:CAD	-8
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelessCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLife (label)	8693000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLife (label)	8693000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelessCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLife (label)	8693000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	ifrs-full:IntangibleAssetsWithIndefiniteUsefulLife (label)	8693000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelessCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill (label)	11340000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:WirelineCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill (label)	1140000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill (label)	12480000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelessCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill (label)	11553000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WirelineCashGeneratingUnitMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill (label)	1357000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:Level3OfFairValueHierarchyMember (label)	tu:IntangibleAssetsWithIndefiniteUsefulLifeAndGoodwill (label)	12910000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label)	tu:PeriodOverWhichManagementHasProjectedCashFlows (label)	_2133456
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForCashgeneratingUnitsMember (label) * ifrs-full:GSMLicencesMember (label)	tu:RenewalOfSpectrumLicenses (label)	_2134090

Fact Table
Network	41901 - Disclosure - leases (Details) (http://www.telus.com/role/DisclosureLeasesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:RealEstateAndVehicleMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpense (label)	176000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:RealEstateAndVehicleMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpense (label)	191000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	1715000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	819000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	599000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	220000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	138000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	125000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	13000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	198000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	192000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	6000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	217000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	211000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	6000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	160000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	147000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	13000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	183000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	171000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	12000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	1445000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:PartnersInterestInRealEstateJointVenturesMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	158000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:RealEstateJointVenturesMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	112000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	270000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	1646000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	742000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	534000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	208000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	135000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	122000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	13000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	203000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	191000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	12000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	224000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	218000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanOneYearMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	6000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	160000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	147000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	13000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	182000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	169000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	13000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:ArmsLengthLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	1381000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:PartnersInterestInRealEstateJointVenturesMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	156000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:RealEstateJointVenturesMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	109000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:RelatedPartyLessorsMember (label)	ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease (label)	265000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	tu:CommitmentsUnderOperatingLeasesForOccupancyCosts (label)	869000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	tu:CommitmentsUnderOperatingLeasesForOccupancyCosts (label)	816000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:LeasedRealEstateMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	tu:LeasedRealEstateOccupancyCosts (label)	133000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:LeasedRealEstateMember (label) * tu:IfrsLeaseArrangementTypeMember (label)	tu:LeasedRealEstateOccupancyCosts (label)	128000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OfficePremisesMember (label) * tu:RelatedPartyLessorsMember (label)	tu:NumberOfLargestLeases (label)	5	xbrli:pure	INF
54	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:RealEstateJointVenturesMember (label)	tu:PercentageOfMinimumLeasePaymentsDue (label)	1	xbrli:pure	INF
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ClassesOfAssetsMember (label) * tu:RealEstateJointVenturesMember (label)	tu:PercentageOfMinimumLeasePaymentsDue (label)	1	xbrli:pure	INF
56	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OfficePremisesMember (label) * tu:RelatedPartyLessorsMember (label)	tu:PercentageRelatedToCertainLeases (label)	0.34	xbrli:pure	2
57	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:WirelessSiteMember (label) * tu:RelatedPartyLessorsMember (label)	tu:PercentageRelatedToCertainLeases (label)	0.3	xbrli:pure	2
58	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OfficePremisesMember (label) * tu:RelatedPartyLessorsMember (label)	tu:PercentageRelatedToCertainLeases (label)	0.33	xbrli:pure	2
59	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WirelessSiteMember (label) * tu:RelatedPartyLessorsMember (label)	tu:PercentageRelatedToCertainLeases (label)	0.29	xbrli:pure	2
60	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:OfficePremisesMember (label) * tu:RelatedPartyLessorsMember (label)	Weighted average term of leases	_2114752
61	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:WirelessSiteMember (label) * tu:RelatedPartyLessorsMember (label)	Weighted average term of leases	_2115372
62	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:OfficePremisesMember (label) * tu:RelatedPartyLessorsMember (label)	Weighted average term of leases	_2115992
63	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WirelessSiteMember (label) * tu:RelatedPartyLessorsMember (label)	Weighted average term of leases	_2116612

Fact Table
Network	42001 - Disclosure - other long-term assets (Details) (http://www.telus.com/role/DisclosureOtherLongTermAssetsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentHeldtomaturityInvestments (label)	62000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentHeldtomaturityInvestments (label)	41000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan (label)	358000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan (label)	156000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherNoncurrentAssets (label)	640000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherNoncurrentAssets (label)	421000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:OtherNoncurrentAssets (label)	600000000	iso4217:CAD	-8
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:OtherNonCurrentAssetsOther (label)	107000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:OtherNonCurrentAssetsOther (label)	105000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:PrepaidExpenseMaintenanceNonCurrent (label)	62000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:PrepaidExpenseMaintenanceNonCurrent (label)	57000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:RealEstateJointVentureAdvancesOtherNonCurrent (label)	21000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:RealEstateJointVentureAdvancesOtherNonCurrent (label)	47000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:RealEstateJointVentureOtherNonCurrentAssets (label)	30000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:RealEstateJointVentureOtherNonCurrentAssets (label)	15000000	iso4217:CAD	-6

Fact Table
Network	42101 - Disclosure - real estate joint ventures - Summarized financial information (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesSummarizedFinancialInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Assets (label)	27729000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Assets (label)	423000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Assets (label)	29548000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Assets (label)	475000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Assets (label)	27700000000	iso4217:CAD	-8
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:Mortgage3.7PercentDueSeptember2024Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.037	xbrli:pure	INF
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:SeniorSecured3.4PercentBondsDueJuly2025Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.034	xbrli:pure	INF
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Mortgage3.7PercentDueSeptember2024Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.037	xbrli:pure	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeniorSecured3.4PercentBondsDueJuly2025Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.034	xbrli:pure	INF
10	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CashAndCashEquivalents (label)	223000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CashAndCashEquivalents (label)	432000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CashAndCashEquivalents (label)	15000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CashAndCashEquivalents (label)	509000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CashAndCashEquivalents (label)	20000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CashAndCashEquivalents (label)	400000000	iso4217:CAD	-8
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentAssets (label)	2474000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentAssets (label)	41000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentAssets (label)	2884000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentAssets (label)	25000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentAssets (label)	2400000000	iso4217:CAD	-8
21	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings (label)	4000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings (label)	5000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentDepositsFromCustomers (label)	3000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentLiabilities (label)	4951000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentLiabilities (label)	34000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentLiabilities (label)	5190000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentLiabilities (label)	28000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:CurrentLiabilities (label)	5000000000	iso4217:CAD	-8
29	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Equity (label)	7672000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Equity (label)	7936000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Equity (label)	113000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Equity (label)	8263000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Equity (label)	71000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Equity (label)	7900000000	iso4217:CAD	-8
35	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAndLiabilities (label)	27729000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAndLiabilities (label)	423000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAndLiabilities (label)	29548000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAndLiabilities (label)	475000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAndLiabilities (label)	27700000000	iso4217:CAD	-8
40	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAttributableToOwnersOfParent (label)	7917000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAttributableToOwnersOfParent (label)	48000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAttributableToOwnersOfParent (label)	8221000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:EquityAttributableToOwnersOfParent (label)	29000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentProperty (label)	261000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentProperty (label)	256000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentPropertyUnderConstructionOrDevelopment (label)	121000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentPropertyUnderConstructionOrDevelopment (label)	194000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Liabilities (label)	19793000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Liabilities (label)	310000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Liabilities (label)	21285000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Liabilities (label)	404000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:Liabilities (label)	19800000000	iso4217:CAD	-8
53	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncontrollingInterests (label)	19000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncontrollingInterests (label)	65000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncontrollingInterests (label)	42000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncontrollingInterests (label)	42000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentAssets (label)	25255000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentAssets (label)	382000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentAssets (label)	26664000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentAssets (label)	450000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentAssets (label)	25300000000	iso4217:CAD	-8
62	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentLiabilities (label)	14842000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentLiabilities (label)	276000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentLiabilities (label)	16095000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentLiabilities (label)	376000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentLiabilities (label)	14800000000	iso4217:CAD	-8
67	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:SeniorSecured3.4PercentBondsDueJuly2025Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued (label)	213000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeniorSecured3.4PercentBondsDueJuly2025Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentPortionOfNoncurrentBondsIssued (label)	208000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Mortgage3.7PercentDueSeptember2024Member (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:NoncurrentPortionOfNoncurrentSecuredBankLoansReceived (label)	27000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:OtherBorrowings (label)	63000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:OtherBorrowings (label)	141000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:OtherCurrentAssets (label)	6000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:OtherCurrentAssets (label)	4000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	2330000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	18000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	2460000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	13000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2017-01-01	ifrs-full:EntitysTotalForUnconsolidatedStructuredEntitiesMember (label)	ifrs-full:TradeAndOtherCurrentPayables (label)	2400000000	iso4217:CAD	-8
79	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:ConstructionHoldbackLiabilities (label)	7000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:ConstructionHoldbackLiabilities (label)	10000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:EscrowedDeposit (label)	5000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:EscrowedDeposit (label)	1000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2013-01-01 to 2013-12-31	tu:TELUSSkyRealEstateJointVentureMember (label)	tu:NumbersOfPartiesInTransaction (label)	2	tu:item	0
84	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:ResidentialPropertyUnderConstructionOrDevelopment (label)	13000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:SalesContractDepositLiabilitiesHeldByArmSLengthTrustee (label)	2000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:SalesContractDepositsHeldByArmSLengthTrustee (label)	2000000	iso4217:CAD	-6

Fact Table
Network	42102 - Disclosure - real estate joint ventures - Net income (loss) and comprehensive income (loss) (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesNetIncomeLossAndComprehensiveIncomeLossDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ComprehensiveIncome (label)	1221000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ComprehensiveIncome (label)	1320000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:DepreciationAndAmortisationExpense (label)	8000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:DepreciationAndAmortisationExpense (label)	8000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:InterestExpense (label)	523000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InterestExpense (label)	10000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:InterestExpense (label)	580000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InterestExpense (label)	8000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProfitLoss (label)	1236000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:ProfitLoss (label)	72000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProfitLoss (label)	1479000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:ProfitLoss (label)	-6000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:RentalIncome (label)	34000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:RentalIncome (label)	34000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:FinanceCostsCapitalized (label)	4000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:FinanceCostsCapitalized (label)	3000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:ProvisionForIncomeTaxesOfPartnersIncludedInNetIncomeAndComprehensiveIncome (label)	0	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:ProvisionForIncomeTaxesOfPartnersIncludedInNetIncomeAndComprehensiveIncome (label)	0	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:RevenueFromSaleOfResidentialCondominiums (label)	262000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:RevenueFromSaleOfResidentialCondominiums (label)	19000000	iso4217:CAD	-6

Fact Table
Network	42103 - Disclosure - real estate joint ventures - Investment activity (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesInvestmentActivityDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1206000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	33000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	33000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	1297000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	2000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent (label)	2000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	69000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	25000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	94000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	21000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	30000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	51000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	47000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	15000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:InvestmentsInJointVentures (label)	62000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * tu:TELUSGardenRealEstateJointVentureMember (label)	ifrs-full:LeasesAsLesseeRelatedPartyTransactions (label)	11000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * tu:TELUSGardenRealEstateJointVentureMember (label)	ifrs-full:LeasesAsLesseeRelatedPartyTransactions (label)	12000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:JointVenturePartnerMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:PercentageOfEntitysRevenue (label)	0.5	xbrli:pure	2
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:PercentageOfEntitysRevenue (label)	0.5	xbrli:pure	2
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:JointVenturePartnerMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:PercentageOfEntitysRevenue (label)	0.5	xbrli:pure	2
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	ifrs-full:PercentageOfEntitysRevenue (label)	0.5	xbrli:pure	2
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:InvestmentInJointVentureValuationProvision (label)	15000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:InvestmentInJointVentureValuationProvision (label)	15000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureConstructionCreditFinancingCostsCharged (label)	1000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureConstructionCreditFinancingCostsCharged (label)	1000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureCreditFacilitiesAdvances (label)	33000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureCreditFacilitiesAdvances (label)	33000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureCreditFacilitiesAdvances (label)	26000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureCreditFacilitiesAdvances (label)	26000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureCreditFacilitiesRepaid (label)	63000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureCreditFacilitiesRepaid (label)	63000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureFundsAdvancedRepaid (label)	18000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureFundsAdvancedRepaid (label)	18000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureFundsRepaidAndEarningsDistributed (label)	21000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureFundsRepaidAndEarningsDistributed (label)	21000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureFundsRepaidAndEarningsDistributed (label)	18000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureFundsRepaidAndEarningsDistributed (label)	18000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureIncreaseDecrease (label)	-48000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureIncreaseDecrease (label)	20000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureIncreaseDecrease (label)	-28000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureIncreaseDecrease (label)	26000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureIncreaseDecrease (label)	-15000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureIncreaseDecrease (label)	11000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LoansAndReceivablesCategoryMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureReceiptsFromFinanceCost (label)	1000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureReceiptsFromFinanceCost (label)	1000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureRecognitionOfDeferredGainOnRealEstateContributed (label)	8000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureRecognitionOfDeferredGainOnRealEstateContributed (label)	8000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EquityInvestmentsMember (label) * ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureRecognitionOfDeferredGainOnRealEstateContributed (label)	1000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureRecognitionOfDeferredGainOnRealEstateContributed (label)	1000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:CounterpartiesMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:MortgageOnProperty (label)	18000000	iso4217:CAD	-6

Fact Table
Network	42104 - Disclosure - real estate joint ventures - Commitments and contingent liabilities (Details) (http://www.telus.com/role/DisclosureRealEstateJointVenturesCommitmentsAndContingentLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TELUSSkyRealEstateJointVentureMember (label)	Contractual capital commitments	121000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TELUSSkyRealEstateJointVentureMember (label)	Contractual capital commitments	82000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ConstructionCreditFacilityOtherMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:AmountOfConstructionFinancing (label)	228000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationConstructionCreditFacilityMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:AmountOfConstructionFinancing (label)	114000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:AmountOfConstructionFinancing (label)	342000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ConstructionCreditFacilityOtherMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:AmountOfConstructionFinancing (label)	228000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationConstructionCreditFacilityMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:AmountOfConstructionFinancing (label)	114000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:AmountOfConstructionFinancing (label)	342000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TELUSSkyRealEstateJointVentureMember (label)	tu:AmountOfConstructionFinancing (label)	342000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationConstructionCreditFacilityMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureUndrawnCreditFacilitiesProvidedByEntity (label)	93000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationConstructionCreditFacilityMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:JointVentureUndrawnCreditFacilitiesProvidedByEntity (label)	67000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationConstructionCreditFacilityMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	21000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationConstructionCreditFacilityMember (label) * ifrs-full:UnconsolidatedStructuredEntitiesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	47000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ThreeCanadianFinancialInstitutionsMember (label) * tu:TELUSSkyRealEstateJointVentureMember (label)	tu:NumberOfFinancialInstitutionsLenders (label)	3	tu:item	INF
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TELUSGardenRealEstateJointVentureMember (label)	tu:NumberOfFinancialInstitutionsLenders (label)	2	tu:item	INF
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ThreeCanadianFinancialInstitutionsMember (label) * tu:TELUSSkyRealEstateJointVentureMember (label)	tu:PercentageOfConstructionFinancingProvided (label)	0.66667	xbrli:pure	5
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TwoCanadianFinancialInstitutionsMember (label) * tu:TELUSGardenRealEstateJointVentureMember (label)	tu:PercentageOfConstructionFinancingProvided (label)	0.5	xbrli:pure	INF
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TELUSGardenRealEstateJointVentureMember (label)	tu:PercentageOfConstructionFinancingProvided (label)	0.5	xbrli:pure	INF
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TELUSSkyRealEstateJointVentureMember (label)	tu:PercentageOfConstructionFinancingProvided (label)	0.33333	xbrli:pure	5
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TELUSSkyRealEstateJointVentureMember (label)	tu:RealEstateJointVentureExpectedSpending (label)	400000000	iso4217:CAD	-6

Fact Table
Network	42201 - Disclosure - short-term borrowings (Details) (http://www.telus.com/role/DisclosureShortTermBorrowingsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * tu:TelusCommunicationIncMember (label)	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * tu:TelusCommunicationIncMember (label)	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:ShorttermBorrowings (label)	100000000	iso4217:CAD	-8
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * tu:TelusCommunicationIncMember (label)	tu:CashProceedsMinimumSalesRequirement (label)	100000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * tu:TelusCommunicationIncMember (label)	tu:CashProceedsMinimumSalesRequirement (label)	100000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * ifrs-full:TopOfRangeMember (label) * tu:TelusCommunicationIncMember (label)	tu:TradeReceivableSecuritizationAgreementMaximumCapacity (label)	500000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * ifrs-full:TopOfRangeMember (label) * tu:TelusCommunicationIncMember (label)	tu:TradeReceivableSecuritizationAgreementMaximumCapacity (label)	500000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * tu:TelusCommunicationIncMember (label)	tu:TradeReceivablesHeldForSale (label)	116000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:RevolvingPeriodSecuritizationAgreementMember (label) * tu:TelusCommunicationIncMember (label)	tu:TradeReceivablesHeldForSale (label)	119000000	iso4217:CAD	-6

Fact Table
Network	42301 - Disclosure - accounts payable and accrued liabilities (Details) (http://www.telus.com/role/DisclosureAccountsPayableAndAccruedLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:InterestPayable (label)	144000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:InterestPayable (label)	147000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherLiabilities (label)	80000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherLiabilities (label)	61000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:ShorttermEmployeeBenefitsAccruals (label)	460000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:ShorttermEmployeeBenefitsAccruals (label)	403000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2330000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2460000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:TradeAndOtherCurrentPayables (label)	2400000000	iso4217:CAD	-8
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers (label)	578000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers (label)	717000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AccruedAndEmployeeRelatedAndRestrictedStockUnitsLiabilities (label)	1528000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AccruedAndEmployeeRelatedAndRestrictedStockUnitsLiabilities (label)	1535000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AccruedLiabilities (label)	1013000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AccruedLiabilities (label)	1066000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:RestrictedStockUnitsLiability (label)	55000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:RestrictedStockUnitsLiability (label)	66000000	iso4217:CAD	-6

Fact Table
Network	42401 - Disclosure - advance billings and customer deposits (Details) (http://www.telus.com/role/DisclosureAdvanceBillingsAndCustomerDepositsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:DepositsFromCustomers (label)	15000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:DepositsFromCustomers (label)	21000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:RegulatoryDeferralAccountCreditBalances (label)	8000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:RegulatoryDeferralAccountCreditBalances (label)	1000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AdvanceBilling (label)	697000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AdvanceBilling (label)	747000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:AdvanceBillingsAndCustomerDeposits (label)	737000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:AdvanceBillingsAndCustomerDeposits (label)	782000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	tu:AdvanceBillingsAndCustomerDeposits (label)	800000000	iso4217:CAD	-8
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:DeferredCustomerActivationAndConnectionFeesCurrentLiabilities (label)	17000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:DeferredCustomerActivationAndConnectionFeesCurrentLiabilities (label)	13000000	iso4217:CAD	-6

Fact Table
Network	42501 - Disclosure - provisions (Details) (http://www.telus.com/role/DisclosureProvisionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	181000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	4000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	128000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees (label)	-7000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)	-10000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)	-10000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)	1000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions (label)	1000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	199000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	54000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	15000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	113000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	17000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	181000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	58000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	13000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	39000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:NewProvisionsOtherProvisions (label)	71000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:OtherProvisions (label)	630000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:OtherProvisions (label)	98000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:OtherProvisions (label)	377000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:OtherProvisions (label)	109000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:OtherProvisions (label)	46000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:OtherProvisions (label)	519000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:OtherProvisions (label)	103000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:OtherProvisions (label)	339000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:OtherProvisions (label)	77000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:OtherProvisions (label)	570000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:OtherProvisions (label)	120000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:OtherProvisions (label)	351000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:OtherProvisions (label)	36000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:OtherProvisions (label)	63000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	245000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	41000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	9000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	141000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	54000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	121000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	40000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	6000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:ProvisionUsedOtherProvisions (label)	75000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	12000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	8000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	4000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherProvisionsMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	70000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	1000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AssetRetirementObligationMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	53000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:EmployeeRelatedMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	5000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WrittenPutOptionProvisionMember (label)	ifrs-full:UnusedProvisionReversedOtherProvisions (label)	11000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OtherProvisionsMember (label)	tu:IncreaseDecreaseThroughChangeInInterest (label)	-43000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:AssetRetirementObligationMember (label)	tu:IncreaseDecreaseThroughChangeInInterest (label)	-44000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:WrittenPutOptionProvisionMember (label)	tu:IncreaseDecreaseThroughChangeInInterest (label)	1000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OtherProvisionsMember (label)	tu:IncreaseDecreaseThroughChangeInInterest (label)	60000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AssetRetirementObligationMember (label)	tu:IncreaseDecreaseThroughChangeInInterest (label)	58000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:WrittenPutOptionProvisionMember (label)	tu:IncreaseDecreaseThroughChangeInInterest (label)	2000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:AssetRetirementObligationMember (label)	tu:InterestEffectDifferenceDueToDiscountRateOtherProvisions (label)	-55000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:AssetRetirementObligationMember (label)	tu:InterestEffectDifferenceDueToDiscountRateOtherProvisions (label)	47000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OtherProvisionsMember (label)	tu:OtherProvisionsCurrent (label)	124000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	tu:OtherProvisionsCurrent (label)	37000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:AssetRetirementObligationMember (label)	tu:OtherProvisionsCurrent (label)	11000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:EmployeeRelatedMember (label)	tu:OtherProvisionsCurrent (label)	76000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OtherProvisionsMember (label)	tu:OtherProvisionsCurrent (label)	78000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	tu:OtherProvisionsCurrent (label)	37000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AssetRetirementObligationMember (label)	tu:OtherProvisionsCurrent (label)	6000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:EmployeeRelatedMember (label)	tu:OtherProvisionsCurrent (label)	35000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OtherProvisionsMember (label)	tu:OtherProvisionsNonCurrent (label)	395000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	tu:OtherProvisionsNonCurrent (label)	66000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:AssetRetirementObligationMember (label)	tu:OtherProvisionsNonCurrent (label)	328000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:EmployeeRelatedMember (label)	tu:OtherProvisionsNonCurrent (label)	1000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OtherProvisionsMember (label)	tu:OtherProvisionsNonCurrent (label)	492000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:MiscellaneousOtherProvisionsMember (label)	tu:OtherProvisionsNonCurrent (label)	83000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:AssetRetirementObligationMember (label)	tu:OtherProvisionsNonCurrent (label)	345000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:EmployeeRelatedMember (label)	tu:OtherProvisionsNonCurrent (label)	1000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:WrittenPutOptionProvisionMember (label)	tu:OtherProvisionsNonCurrent (label)	63000000	iso4217:CAD	-6

Fact Table
Network	42601 - Disclosure - long-term debt (Details) (http://www.telus.com/role/DisclosureLongTermDebtDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1327000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1404000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1300000000	iso4217:CAD	-8
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:LongtermBorrowings (label)	11604000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:LongtermBorrowings (label)	12256000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:LongtermBorrowings (label)	11600000000	iso4217:CAD	-8
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCommunicationsInc.DebenturesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	619000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	613000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	11367000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	332000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCommunicationsInc.DebenturesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	620000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	908000000	iso4217:USD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1140000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	11561000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	339000000	iso4217:CAD	-6

Fact Table
Network	42602 - Disclosure - long-term debt - TELUS Corporation notes (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCorporationNotesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0495	xbrli:pure	INF
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0505	xbrli:pure	INF
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0505	xbrli:pure	INF
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0335	xbrli:pure	INF
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0335	xbrli:pure	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.044	xbrli:pure	INF
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.036	xbrli:pure	INF
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0515	xbrli:pure	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.032	xbrli:pure	INF
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0485	xbrli:pure	INF
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0375	xbrli:pure	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0475	xbrli:pure	INF
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.015	xbrli:pure	INF
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0235	xbrli:pure	INF
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.044	xbrli:pure	INF
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0375	xbrli:pure	INF
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.047	xbrli:pure	INF
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.028	xbrli:pure	INF
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label) * tu:ForeignExchangeDerivativeMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0295	xbrli:pure	INF
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.037	xbrli:pure	INF
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label) * tu:ForeignExchangeDerivativeMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0341	xbrli:pure	INF
22	0000868675 (http://www.sec.gov/CIK)	2014-04-30	tu:SeriesCp4.85PercentNotesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0485	xbrli:pure	4
23	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:SeriesCp4.85PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	400000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	700000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	1000000000	iso4217:CAD	-8
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	1000000000	iso4217:CAD	-8
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	500000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	1100000000	iso4217:CAD	-8
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	600000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	400000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	400000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	500000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	500000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	800000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	400000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	250000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	1000000000	iso4217:CAD	-8
38	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	500000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	600000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	325000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	ifrs-full:NotionalAmount (label)	600000000	iso4217:USD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	ifrs-full:NotionalAmount (label)	500000000	iso4217:USD	-6
43	0000868675 (http://www.sec.gov/CIK)	2014-04-30	tu:SeriesCp4.85PercentNotesMember (label)	ifrs-full:NotionalAmount (label)	500000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0502	xbrli:pure	4
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0496	xbrli:pure	4
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0513	xbrli:pure	4
47	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0508	xbrli:pure	4
48	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0336	xbrli:pure	4
49	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0341	xbrli:pure	4
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0441	xbrli:pure	4
51	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0365	xbrli:pure	4
52	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0518	xbrli:pure	4
53	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0324	xbrli:pure	4
54	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0493	xbrli:pure	4
55	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0378	xbrli:pure	4
56	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.048	xbrli:pure	3
57	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0151	xbrli:pure	4
58	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0239	xbrli:pure	4
59	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.044	xbrli:pure	3
60	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0384	xbrli:pure	4
61	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0476	xbrli:pure	4
62	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0289	xbrli:pure	4
63	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0371	xbrli:pure	4
64	0000868675 (http://www.sec.gov/CIK)	2014-04-30	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsEffectiveInterestRate (label)	0.0486	xbrli:pure	4
65	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	974.38	iso4217:CAD/tu:NotesSeries	2
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	999.53	iso4217:CAD/tu:NotesSeries	2
67	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	994.19	iso4217:CAD/tu:NotesSeries	2
68	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	997.44	iso4217:CAD/tu:NotesSeries	2
69	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	998.83	iso4217:CAD/tu:NotesSeries	2
70	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	994.35	iso4217:CAD/tu:NotesSeries	2
71	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	997.68	iso4217:CAD/tu:NotesSeries	2
72	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	997.15	iso4217:CAD/tu:NotesSeries	2
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	995.0	iso4217:CAD/tu:NotesSeries	2
74	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	997.39	iso4217:CAD/tu:NotesSeries	2
75	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	987.91	iso4217:CAD/tu:NotesSeries	2
76	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	997.75	iso4217:CAD/tu:NotesSeries	2
77	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	992.91	iso4217:CAD/tu:NotesSeries	2
78	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	999.62	iso4217:CAD/tu:NotesSeries	2
79	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	997.31	iso4217:CAD/tu:NotesSeries	2
80	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	999.72	iso4217:CAD/tu:NotesSeries	2
81	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	992.14	iso4217:CAD/tu:NotesSeries	2
82	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	990.65	iso4217:CAD/tu:NotesSeries	2
83	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:BorrowingsIssuePrice (label)	991.89	iso4217:USD/tu:NotesSeries	2
84	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:BorrowingsIssuePrice (label)	998.95	iso4217:USD/tu:NotesSeries	2
85	0000868675 (http://www.sec.gov/CIK)	2014-04-30	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsIssuePrice (label)	998.74	iso4217:CAD/tu:NotesSeries	2
86	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:BorrowingsRedemptionPeriod (label)	_1808066
87	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label) * ifrs-full:TopOfRangeMember (label)	tu:BorrowingsRedemptionPeriod (label)	_1808700
88	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label)	tu:BorrowingsRedemptionPricePercentage (label)	1.0	xbrli:pure	2
89	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0024	xbrli:pure	5
90	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00455	xbrli:pure	5
91	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0047	xbrli:pure	5
92	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.004	xbrli:pure	5
93	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0036	xbrli:pure	5
94	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0047	xbrli:pure	5
95	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0035	xbrli:pure	5
96	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.005	xbrli:pure	5
97	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.003	xbrli:pure	5
98	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0046	xbrli:pure	5
99	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00385	xbrli:pure	5
100	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00515	xbrli:pure	5
101	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00355	xbrli:pure	5
102	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00605	xbrli:pure	5
103	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00535	xbrli:pure	5
104	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.00585	xbrli:pure	5
105	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.002	xbrli:pure	5
106	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.002	xbrli:pure	5
107	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TELUSCorpNotesAllSeriesExceptSeriesCDMember (label)	tu:BorrowingsRepurchasePricePercentage (label)	1.01	xbrli:pure	2
108	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	N/A
109	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	N/A
110	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	N/A
111	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Dec. 15, 2022
112	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Jan. 2, 2024
113	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Oct. 1, 2042
114	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	N/A
115	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	May 26, 2043
116	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Mar. 5, 2021
117	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Oct. 5, 2043
118	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Oct. 17, 2024
119	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	July 17, 2044
120	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	N/A
121	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Feb. 28, 2022
122	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	July 29, 2045
123	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Dec. 10, 2025
124	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Sept. 6, 2047
125	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	Nov. 16, 2026
126	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:DebtInstrumentRedemptionPresentValueSpreadCessationDate (label)	June 15, 2027
127	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label) * tu:ForeignExchangeDerivativeMember (label)	tu:DerivativesFixedExchangeRate (label)	1.3205	xbrli:pure	INF
128	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label) * tu:ForeignExchangeDerivativeMember (label)	tu:DerivativesFixedExchangeRate (label)	1.3348	xbrli:pure	INF
129	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	March 2007
130	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	December 2009
131	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	July 2010
132	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	December 2012
133	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	April 2013
134	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	April 2013
135	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	November 2013
136	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	November 2013
137	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	April 2014
138	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	September 2014
139	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	September 2014
140	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	March 2015
141	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	March 2015
142	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	March 2015
143	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	December 2015
144	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	March 2017
145	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	September 2016
146	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	March 2017
147	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	March 2017
148	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	December 2019
149	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	July 2020
150	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	March 2023
151	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	April 2024
152	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	April 2043
153	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	January 2021
154	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	November 2043
155	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	April 2021
156	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	April 2044
157	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	January 2025
158	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	January 2045
159	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	March 2018
160	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	March 2022
161	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	January 2046
162	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	March 2026
163	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	March 2048
164	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	February 2027
165	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	September 2027
166	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
167	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	11367000000	iso4217:CAD	-6
168	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
169	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCd4.95PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	0	iso4217:CAD	-6
170	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCg5.05PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1000000000	iso4217:CAD	-8
171	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCh5.05PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1000000000	iso4217:CAD	-8
172	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCj3.35PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	500000000	iso4217:CAD	-6
173	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCk3.35PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1100000000	iso4217:CAD	-8
174	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCl4.40PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	600000000	iso4217:CAD	-6
175	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCm3.60PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	400000000	iso4217:CAD	-6
176	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCn5.15PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	400000000	iso4217:CAD	-6
177	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCo3.20PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	500000000	iso4217:CAD	-6
178	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCp4.85PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	900000000	iso4217:CAD	-6
179	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCq3.75PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	800000000	iso4217:CAD	-6
180	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCr4.75PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	400000000	iso4217:CAD	-6
181	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCs1.50PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	250000000	iso4217:CAD	-6
182	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCt2.35PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1000000000	iso4217:CAD	-8
183	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCu4.40PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	500000000	iso4217:CAD	-6
184	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCv3.75PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	600000000	iso4217:CAD	-6
185	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesCw4.70PercentNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	325000000	iso4217:CAD	-6
186	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationNotesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	11561000000	iso4217:CAD	-6
187	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	600000000	iso4217:USD	-6
188	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes2.80PercentMember (label) * tu:ForeignExchangeDerivativeMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	792000000	iso4217:CAD	-6
189	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	500000000	iso4217:USD	-6
190	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:U.s.DollarNotes3.70PercentMember (label) * tu:ForeignExchangeDerivativeMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	667000000	iso4217:CAD	-6

Fact Table
Network	42603 - Disclosure - long-term debt - TELUS Corporation commercial paper (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCorporationCommercialPaperDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1327000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1404000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label)	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	0	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:CurrentPortionOfLongtermBorrowings (label)	1300000000	iso4217:CAD	-8
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:BorrowingsEffectiveWeightedAverageInterestRate (label)	0.0183	xbrli:pure	4
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	613000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	908000000	iso4217:USD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1140000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCommercialPaperMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	1400000000	iso4217:CAD	-8
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	1400000000	iso4217:CAD	-8
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-7

Fact Table
Network	42604 - Disclosure - long-term debt - TELUS Corporation credit facility (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCorporationCreditFacilityDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:UndrawnBorrowingFacilities (label)	1637000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:UndrawnBorrowingFacilities (label)	1110000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	613000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	908000000	iso4217:USD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	1140000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label)	tu:NumberOfFinancialRatioTests (label)	2	tu:item	INF
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label) * ifrs-full:TopOfRangeMember (label)	tu:RatioOfNetDebtToOperatingCashFlow (label)	4.0	xbrli:pure	2
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:RatioOfOperatingCashFlowToInterestExpense (label)	2.0	xbrli:pure	2
11	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCreditFacilityMember (label)	us-gaap:LettersOfCreditOutstandingAmount (label)	210000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label)	us-gaap:LettersOfCreditOutstandingAmount (label)	224000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCommercialPaperMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	1400000000	iso4217:CAD	-8
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	1400000000	iso4217:CAD	-8
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCreditFacilityMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-7

Fact Table
Network	42605 - Disclosure - long-term debt - TELUS Communications Inc. debentures (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusCommunicationsIncDebenturesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series310.65PercentDebenturesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.1065	xbrli:pure	INF
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series59.65PercentDebenturesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.0965	xbrli:pure	INF
3	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	ifrs-full:BorrowingsInterestRate (label)	0.088	xbrli:pure	INF
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series310.65PercentDebenturesMember (label)	ifrs-full:NotionalAmount (label)	175000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series59.65PercentDebenturesMember (label)	ifrs-full:NotionalAmount (label)	150000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	ifrs-full:NotionalAmount (label)	200000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series310.65PercentDebenturesMember (label)	tu:BorrowingsIssuePrice (label)	998.0	iso4217:CAD/tu:NotesSeries	2
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series59.65PercentDebenturesMember (label)	tu:BorrowingsIssuePrice (label)	972.0	iso4217:CAD/tu:NotesSeries	2
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:BorrowingsIssuePrice (label)	995.1	iso4217:CAD/tu:NotesSeries	2
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:BorrowingsRedemptionPricePercentage (label)	1.0	xbrli:pure	2
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:BorrowingsRedemptionSpreadBasisPoints (label)	0.0015	xbrli:pure	5
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series59.65PercentDebenturesMember (label)	tu:ExchangeOfDebenturesAmount (label)	99000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:Series310.65PercentDebenturesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	June 1991
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:Series59.65PercentDebenturesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	April 1992
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:IfrsDebtInstrumentIssuedDate (label)	September 1995
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:Series310.65PercentDebenturesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	June 2021
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:Series59.65PercentDebenturesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	April 2022
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:IfrsDebtInstrumentMaturityDate (label)	September 2025
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series310.65PercentDebenturesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	175000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:Series59.65PercentDebenturesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	249000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	200000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:Series59.65PercentDebenturesMember (label)	tu:PeriodForExchangeOfDebenturesUnderBorrowings (label)	_1734474
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:SeriesB8.80PercentDebenturesMember (label)	tu:RedemptionOfDebenturesNoticePeriod (label)	_1735086

Fact Table
Network	42606 - Disclosure - long-term debt - TELUS International (Cda) Inc. credit facility (Details) (http://www.telus.com/role/DisclosureLongTermDebtTelusInternationalCdaIncCreditFacilityDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:ProceedsFromNoncurrentBorrowings (label)	5726000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:ProceedsFromNoncurrentBorrowings (label)	6367000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2018-02-08 to 2018-02-08	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	ifrs-full:ProceedsFromNoncurrentBorrowings (label)	75000000	iso4217:USD	-6
4	0000868675 (http://www.sec.gov/CIK)	2018-02-08 to 2018-02-08	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	ifrs-full:ProceedsFromNoncurrentBorrowings (label)	94000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:UndrawnBorrowingFacilities (label)	1637000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	ifrs-full:UndrawnBorrowingFacilities (label)	72000000	iso4217:USD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	ifrs-full:UndrawnBorrowingFacilities (label)	72000000	iso4217:USD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:UndrawnBorrowingFacilities (label)	1110000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	ifrs-full:UndrawnBorrowingFacilities (label)	193000000	iso4217:USD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	ifrs-full:UndrawnBorrowingFacilities (label)	193000000	iso4217:USD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:BorrowingsWeightedAverageInterestRate (label)	0.0332	xbrli:pure	4
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:GrossBorrowings (label)	253000000	iso4217:USD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	tu:GrossBorrowings (label)	43000000	iso4217:USD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncTermLoanMember (label)	tu:GrossBorrowings (label)	210000000	iso4217:USD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:GrossBorrowings (label)	276000000	iso4217:USD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:GrossBorrowings (label)	346000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	tu:GrossBorrowings (label)	157000000	iso4217:USD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncTermLoanMember (label)	tu:GrossBorrowings (label)	119000000	iso4217:USD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	12931000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	332000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	13660000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:LongTermBorrowingsCurrentAndNonCurrent (label)	339000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:NumberOfFinancialRatioTests (label)	2	tu:item	INF
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	tu:PercentageOfPrincipalAdvanceToRepayBorrowings (label)	0.05	xbrli:pure	2
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * ifrs-full:TopOfRangeMember (label)	tu:RatioOfNetDebtToOperatingCashFlow (label)	3.25	xbrli:pure	2
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:RatioOfOperatingCashFlowToDebtServiceRatio (label)	1.5	xbrli:pure	2
27	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	325000000	iso4217:USD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	115000000	iso4217:USD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaIncTermLoanMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	215000000	iso4217:USD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	2250000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	469000000	iso4217:USD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncRevolvingCreditFacilityMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	350000000	iso4217:USD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaIncTermLoanMember (label)	us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity (label)	120000000	iso4217:USD	-6

Fact Table
Network	42607 - Disclosure - long-term debt - Long-term debt maturities - (Details) (http://www.telus.com/role/DisclosureLongTermDebtLongTermDebtMaturitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesPayableMember (label) * currency:USD (label)	ifrs-full:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchanged (label)	3069000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	18822000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	11584000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1711000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	750000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1447000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1498000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1832000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	19762000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	11430000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1913000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1531000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1480000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1480000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:NotLaterThanOneYearMember (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1928000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * currency:CAD (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	16405000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * currency:USD (label)	ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows (label)	3357000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	6325000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	1380000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	1249000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	316000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	1000000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	8000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	1075000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	8000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	1000000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	8000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	250000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	1147000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * currency:CAD (label)	ifrs-full:NotionalAmount (label)	10899000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * currency:USD (label)	ifrs-full:NotionalAmount (label)	2867000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesReceivableMember (label) * currency:USD (label)	tu:ContractualAmountsToBeExchangedInDerivativeFinancialInstrumentForWhichGrossCashFlowsAreExchangedDerivativeReceive (label)	2955000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * currency:CAD (label)	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCosts (label)	5506000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCosts (label)	490000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesPayableMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCostsDerivativeLiabilities (label)	449000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesReceivableMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCostsDerivativeLiabilities (label)	-431000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label)	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCostsIncludingDerivativeLiabilities (label)	6014000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtInterestAndLikeCarryingCostsIncludingDerivativeLiabilities (label)	508000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesPayableMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities (label)	1460000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesPayableMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities (label)	1160000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesPayableMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities (label)	2620000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesReceivableMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities (label)	-1380000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesReceivableMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities (label)	-1144000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativeLiabilitiesReceivableMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsDerivativeLiabilities (label)	-2524000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	13862000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanFiveYearsMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	7785000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanFiveYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1460000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1565000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	316000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1008000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	8000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1083000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	8000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1008000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	8000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:NotLaterThanOneYearMember (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1413000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * ifrs-full:NotLaterThanOneYearMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	1163000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * currency:USD (label)	tu:FutureCashOutflowsLongTermDebtPrincipalRepaymentsIncludingDerivativeLiabilities (label)	2963000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	21221000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LaterThanFiveYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	11580000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1720000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1079000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1456000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1514000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:NotLaterThanOneYearMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	3872000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	22459000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	19876000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongTermDebtNetOfDerivativeImpactMember (label) * currency:USD (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	3471000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanFiveYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	11534000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1933000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1573000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1558000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	1501000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:NotLaterThanOneYearMember (label)	tu:NonderivativeAndDerivativeFinancialLiabilitiesUndiscountedCashFlows (label)	4360000000	iso4217:CAD	-6

Fact Table
Network	42701 - Disclosure - other long-term liabilities (Details) (http://www.telus.com/role/DisclosureOtherLongTermLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:DeferredIncome (label)	72000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:DeferredIncome (label)	81000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:DerivativeFinancialLiabilities (label)	21000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:DerivativeFinancialLiabilities (label)	76000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan (label)	484000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan (label)	537000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	ifrs-full:OtherNoncurrentLiabilities (label)	736000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	ifrs-full:OtherNoncurrentLiabilities (label)	847000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-01-01	null	ifrs-full:OtherNoncurrentLiabilities (label)	700000000	iso4217:CAD	-8
10	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:DeferredCustomerActivationAndConnectionFeesOtherLongTermLiabilities (label)	24000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:DeferredCustomerActivationAndConnectionFeesOtherLongTermLiabilities (label)	18000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:NonCurrentOtherLiability (label)	73000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:NonCurrentOtherLiability (label)	67000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:NonCurrentRestrictedStockUnitsAndDeferredShareUnitsLiability (label)	62000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:NonCurrentRestrictedStockUnitsAndDeferredShareUnitsLiability (label)	68000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2016-12-31	null	tu:OtherNonCurrentLiabilityBeforeDeferredCustomerActivationAndConnectionFees (label)	712000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-12-31	null	tu:OtherNonCurrentLiabilityBeforeDeferredCustomerActivationAndConnectionFees (label)	829000000	iso4217:CAD	-6

Fact Table
Network	42801 - Disclosure - Common Share capital (Details) (http://www.telus.com/role/DisclosureCommonShareCapitalDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:NumberOfSharesAuthorised (label)	2000000000	xbrli:shares	-7
2	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:FirstPreferredSharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:NumberOfSharesAuthorised (label)	1000000000	xbrli:shares	-7
3	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:SecondPreferredSharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:NumberOfSharesAuthorised (label)	1000000000	xbrli:shares	-7
4	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:NumberOfSharesAuthorised (label)	2000000000	xbrli:shares	-7
5	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:FirstPreferredSharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:NumberOfSharesAuthorised (label)	1000000000	xbrli:shares	-7
6	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:SecondPreferredSharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:NumberOfSharesAuthorised (label)	1000000000	xbrli:shares	-7
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ClassesOfShareCapitalMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:PurchaseOfTreasuryShares (label)	45000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:PurchaseOfTreasuryShares (label)	169000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ClassesOfShareCapitalMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	ifrs-full:SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares (label)	48000000	xbrli:shares	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:CostOfPurchaseOfCommonSharesRelatedToEmployeeBenefitPlanTrustTransactions (label)	4000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2017-11-01 to 2017-11-30	ifrs-full:OrdinarySharesMember (label) * ifrs-full:TopOfRangeMember (label) * tu:September302016September292017Member (label)	tu:CostOfPurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	250000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:CostOfPurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	165000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:September152015September142016Member (label)	tu:CostOfPurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	130000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:September302016September292017Member (label)	tu:CostOfPurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	35000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:CostOfPurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	0	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:ClassesOfShareCapitalMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:MinimumPercentageOfCommonSharesIssuedAndOutstandingOwnedByCanadians (label)	0.6667	xbrli:pure	INF
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:NumberOfVotePerCommonShare (label)	1	tu:Vote	0
18	0000868675 (http://www.sec.gov/CIK)	2017-11-01 to 2017-11-30	ifrs-full:OrdinarySharesMember (label) * ifrs-full:TopOfRangeMember (label) * tu:September302016September292017Member (label)	tu:PurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	8000000	xbrli:shares	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:PurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	4000000	xbrli:shares	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:September152015September142016Member (label)	tu:PurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	3000000	xbrli:shares	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:September302016September292017Member (label)	tu:PurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	1000000	xbrli:shares	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:PurchaseOfCommonSharesRelatedToNormalCourseIssuerBid (label)	0	xbrli:shares	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:OrdinarySharesMember (label) * tu:NormalCourseIssuerBidPeriodMember (label)	tu:PurchaseOfTreasury (label)	4000000	xbrli:shares	-6

Fact Table
Network	42901 - Disclosure - contingent liabilities (Details) (http://www.telus.com/role/DisclosureContingentLiabilitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ContingentLiabilitiesMember (label) * tu:IfrsLitigationCaseTypeDomain (label)	ifrs-full:EstimatedFinancialEffectOfContingentLiabilities (label)	null	iso4217:CAD
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ContingentLiabilitiesMember (label) * tu:IfrsLitigationCaseTypeDomain (label)	ifrs-full:EstimatedFinancialEffectOfContingentLiabilities (label)	null	iso4217:CAD
3	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LegalProceedingsContingentLiabilityMember (label) * tu:SystemAccessFeeClassActionsMember (label)	tu:ClassActionLawsuitsRelatedToSystemAccessFees (label)	14	tu:item	INF
4	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ConcentrationOfLabourMember (label) * tu:IfrsLitigationCaseTypeDomain (label)	tu:CollectiveAgreementDuration (label)	_1621710
5	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LegalProceedingsContingentLiabilityMember (label) * tu:SystemAccessFeeClassActionsMember (label)	tu:NumberOfClassActionLawsuitsCertified (label)	0	tu:item	INF
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LegalProceedingsContingentLiabilityMember (label) * tu:SystemAccessFeeClassActionsMember (label)	tu:NumberOfProvinces (label)	9	tu:item	INF
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LegalProceedingsContingentLiabilityMember (label) * tu:Network4gltePatentInfringementClaimMember (label)	tu:PatentInfringementClaimNumberOfThirdPartyPatents (label)	3	tu:item	INF
8	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:ConcentrationOfLabourMember (label) * tu:IfrsLitigationCaseTypeDomain (label)	tu:PercentageEmployeesCoveredUnderCollectiveAgreement (label)	0.4	xbrli:pure	2
9	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:ConcentrationOfLabourMember (label) * tu:IfrsLitigationCaseTypeDomain (label)	tu:PercentageEmployeesCoveredUnderCollectiveAgreement (label)	0.37	xbrli:pure	2

Fact Table
Network	43001 - Disclosure - related party transactions (Details) (http://www.telus.com/role/DisclosureRelatedPartyTransactionsDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:IntrinsicValueOfLiabilitiesFromSharebasedPaymentTransactionsForWhichCounterpartysRightToCashOrOtherAssetsVested2011 (label)	4000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:IntrinsicValueOfLiabilitiesFromSharebasedPaymentTransactionsForWhichCounterpartysRightToCashOrOtherAssetsVested2011 (label)	1000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensation (label)	54000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensation (label)	50000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits (label)	7000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits (label)	4000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment (label)	35000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment (label)	34000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits (label)	12000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits (label)	12000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	585759	tu:EquityInstruments	INF
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember (label)	ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted (label)	686595	tu:EquityInstruments	INF
13	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:NumberOfOutstandingShareOptions (label)	0	tu:EquityInstruments	INF
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	169522	tu:EquityInstruments	INF
15	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	17716	tu:EquityInstruments	INF
16	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	42.47	iso4217:CAD	2
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelShareOptionsMember (label)	ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement (label)	44.84	iso4217:CAD	2
18	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember (label)	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (label)	15000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember (label)	ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted (label)	30000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:EntitysTotalForRelatedPartiesMember (label)	tu:DefinedBenefitPlansManagementAndAdministrativeServiceCharges (label)	6000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:EntitysTotalForRelatedPartiesMember (label)	tu:DefinedBenefitPlansManagementAndAdministrativeServiceCharges (label)	6000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagementPersonnelCompensationShareBasedPaymentDerivativeEffect (label)	2000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagementPersonnelCompensationShareBasedPaymentDerivativeEffect (label)	4000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagementPersonnelCompensationShareBasedPaymentIncludedInRestructuringCosts (label)	4000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagementPersonnelCompensationShareBasedPaymentIncludedInRestructuringCosts (label)	-7000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:DirectorsDeferredShareUnitPlanMember (label)	tu:KeyManagerialPersonnelDeferredShareUnitsPaidOut (label)	4000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:DirectorsDeferredShareUnitPlanMember (label)	tu:KeyManagerialPersonnelDeferredShareUnitsPaidOut (label)	14000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelLiabilitiesAccruedForDeferredShareUnits (label)	32000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelLiabilitiesAccruedForDeferredShareUnits (label)	24000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnits (label)	25000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnits (label)	40000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnitsAndDeferredShareUnits (label)	57000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelLiabilitiesAccruedForRestrictedStockUnitsAndDeferredShareUnits (label)	64000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label)	tu:KeyManagerialPersonnelSeverancePaymentsAnnualCashBonusPercentage (label)	0.5	xbrli:pure	INF
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * ifrs-full:BottomOfRangeMember (label)	tu:KeyManagerialPersonnelSeverancePaymentsNumberOfMonthsBaseSalaryConsidered (label)	_1616260
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * ifrs-full:TopOfRangeMember (label)	tu:KeyManagerialPersonnelSeverancePaymentsNumberOfMonthsBaseSalaryConsidered (label)	_1616906
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember (label)	tu:NotionalValueOfInstrumentsOtherEquityInstrumentsGranted (label)	23000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:KeyManagementPersonnelOfEntityOrParentMember (label) * tu:KeyManagementPersonnelRestrictedStockUnitsRSUMember (label)	tu:NotionalValueOfInstrumentsOtherEquityInstrumentsGranted (label)	30000000	iso4217:CAD	-6

Fact Table
Network	43101 - Disclosure - additional statement of cash flow information (Details) (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformationDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDecreaseIncreaseInInventories (label)	42000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDecreaseIncreaseInInventories (label)	-60000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)	-45000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables (label)	-70000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForProvisions (label)	-18000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForProvisions (label)	-59000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:AdjustmentsForReconcileProfitLoss (label)	-71000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:AdjustmentsForReconcileProfitLoss (label)	-142000000	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities (label)	629000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities (label)	617000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)	2358000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities (label)	2486000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets (label)	2987000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets (label)	3103000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:AdditionalCapitalExpendituresFromNonMonetaryTransactions (label)	19000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:AdditionalCapitalExpendituresFromNonMonetaryTransactions (label)	9000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:AdjustmentsForDecreaseIncreaseInPrepaidExpenses (label)	-20000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:AdjustmentsForDecreaseIncreaseInPrepaidExpenses (label)	-27000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:AssetRetirementObligationsExpenditures (label)	-40000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:AssetRetirementObligationsExpenditures (label)	7000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:CapitalExpendituresExcludingNonCash (label)	2968000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:CapitalExpendituresExcludingNonCash (label)	3094000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:CapitalExpendituresNetAssetRetirementObligations (label)	2928000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:CapitalExpendituresNetAssetRetirementObligations (label)	3101000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:IncreaseDecreaseAccountsPayableAndAccruedLiabilities (label)	126000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseAccountsPayableAndAccruedLiabilities (label)	126000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:IncreaseDecreaseAccruedTaxesPayable (label)	-128000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseAccruedTaxesPayable (label)	-90000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:IncreaseDecreaseCustomerAdvancesAndDeposits (label)	-28000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseCustomerAdvancesAndDeposits (label)	38000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:IncreaseDecreaseInNonCashInvestingWorkingCapital (label)	231000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:IncreaseDecreaseInNonCashInvestingWorkingCapital (label)	-27000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:NonCashChangeInAssetRetirementObligation (label)	-55000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:NonCashChangeInAssetRetirementObligation (label)	47000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:OtherCapitalExpendituresFromNonCashTransactions (label)	176000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:OtherCapitalExpendituresFromNonCashTransactions (label)	20000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	null	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences (label)	2752000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	null	tu:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodWillInvestmentPropertyAndOtherNonCurrentAssetsExcludingSpectrumLicences (label)	3081000000	iso4217:CAD	-6

Fact Table
Network	43102 - Disclosure - additional statement of cash flow information - Financing activities (Details) (http://www.telus.com/role/DisclosureAdditionalStatementOfCashFlowInformationFinancingActivitiesDetails)
Table	(implied)

#	Reporting Entity [Axis]	Period [Axis]	Scenario [Axis]	Concept	Fact Value	Unit	Rounding
1	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	47000000	iso4217:CAD	-6
2	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	-3000000	iso4217:CAD	-6
3	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	50000000	iso4217:CAD	-6
4	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:CurrentTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	-3000000	iso4217:CAD	-6
5	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	5000000	iso4217:CAD	-6
6	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	3000000	iso4217:CAD	-6
7	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	-20000000	iso4217:CAD	-6
8	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity (label)	0	iso4217:CAD	-6
9	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl (label)	243000000	iso4217:CAD	-6
10	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	11000000	iso4217:CAD	-6
11	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	-30000000	iso4217:CAD	-6
12	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	19000000	iso4217:CAD	-6
13	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	9000000	iso4217:CAD	-6
14	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	9000000	iso4217:CAD	-6
15	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	9000000	iso4217:CAD	-6
16	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	149000000	iso4217:CAD	-6
17	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	-58000000	iso4217:CAD	-6
18	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	-91000000	iso4217:CAD	-6
19	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	-20000000	iso4217:CAD	-6
20	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	-20000000	iso4217:CAD	-6
21	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities (label)	-20000000	iso4217:CAD	-6
22	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	43000000	iso4217:CAD	-6
23	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCommunicationsInc.DebenturesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1000000	iso4217:CAD	-6
24	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-1000000	iso4217:CAD	-6
25	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-8000000	iso4217:CAD	-6
26	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	35000000	iso4217:CAD	-6
27	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1091000000	iso4217:CAD	-6
28	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1091000000	iso4217:CAD	-6
29	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	35000000	iso4217:CAD	-6
30	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:PurchaseOfCommonSharesForCancellationMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	169000000	iso4217:CAD	-6
31	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-40000000	iso4217:CAD	-6
32	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCommunicationsInc.DebenturesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1000000	iso4217:CAD	-6
33	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-5000000	iso4217:CAD	-6
34	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1000000	iso4217:CAD	-6
35	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-43000000	iso4217:CAD	-6
36	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1167000000	iso4217:CAD	-6
37	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	1097000000	iso4217:CAD	-6
38	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendsReinvestedInSharesFromTreasuryMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-70000000	iso4217:CAD	-6
39	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities (label)	-43000000	iso4217:CAD	-6
40	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity (label)	3000000	iso4217:CAD	-6
41	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	-14000000	iso4217:CAD	-6
42	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCommunicationsInc.DebenturesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	618000000	iso4217:CAD	-6
43	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	256000000	iso4217:CAD	-6
44	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	11164000000	iso4217:CAD	-6
45	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	12024000000	iso4217:CAD	-6
46	0000868675 (http://www.sec.gov/CIK)	2015-12-31	ifrs-full:ShorttermBorrowingsMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	100000000	iso4217:CAD	-6
47	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	263000000	iso4217:CAD	-6
48	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	263000000	iso4217:CAD	-6
49	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	12024000000	iso4217:CAD	-6
50	0000868675 (http://www.sec.gov/CIK)	2015-12-31	tu:PurchaseOfCommonSharesForCancellationMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	10000000	iso4217:CAD	-6
51	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	20000000	iso4217:CAD	-6
52	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCommunicationsInc.DebenturesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	619000000	iso4217:CAD	-6
53	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	613000000	iso4217:CAD	-6
54	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	11367000000	iso4217:CAD	-6
55	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	332000000	iso4217:CAD	-6
56	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	12951000000	iso4217:CAD	-6
57	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:ShorttermBorrowingsMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	100000000	iso4217:CAD	-6
58	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	284000000	iso4217:CAD	-6
59	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	284000000	iso4217:CAD	-6
60	0000868675 (http://www.sec.gov/CIK)	2016-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	12951000000	iso4217:CAD	-6
61	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	93000000	iso4217:CAD	-6
62	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCommunicationsInc.DebenturesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	620000000	iso4217:CAD	-6
63	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	1140000000	iso4217:CAD	-6
64	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	11561000000	iso4217:CAD	-6
65	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	339000000	iso4217:CAD	-6
66	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LongtermBorrowingsMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	13753000000	iso4217:CAD	-6
67	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:ShorttermBorrowingsMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	100000000	iso4217:CAD	-6
68	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	299000000	iso4217:CAD	-6
69	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	299000000	iso4217:CAD	-6
70	0000868675 (http://www.sec.gov/CIK)	2017-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	ifrs-full:LiabilitiesArisingFromFinancingActivities (label)	13753000000	iso4217:CAD	-6
71	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:PaymentsForShareIssueCosts (label)	8000000	iso4217:CAD	-6
72	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:PaymentsForShareIssueCosts (label)	1000000	iso4217:CAD	-6
73	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:PaymentsForShareIssueCosts (label)	1000000	iso4217:CAD	-6
74	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries (label)	294000000	iso4217:CAD	-6
75	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:ProceedsFromIssueOfOrdinaryShares (label)	302000000	iso4217:CAD	-6
76	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	ifrs-full:ShareIssueRelatedCost (label)	12000000	iso4217:CAD	-6
77	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:EliminateEffectOfTransactionCostsPaymentsForIssueOfOrdinaryShares (label)	8000000	iso4217:CAD	-6
78	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:EliminateEffectOfTransactionCostsProceedsFromIssueOfOrdinaryShares (label)	8000000	iso4217:CAD	-6
79	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	4181000000	iso4217:CAD	-6
80	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	4568000000	iso4217:CAD	-6
81	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	785000000	iso4217:CAD	-6
82	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	373000000	iso4217:CAD	-6
83	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:ToEliminateEffectOfGrossSettlementOfDerivativesUsedToManageCurrencyRisksArisingFromLongTermDebtMember (label) * ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	-4181000000	iso4217:CAD	-6
84	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	5726000000	iso4217:CAD	-6
85	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ShorttermBorrowingsMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	3000000	iso4217:CAD	-6
86	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	9907000000	iso4217:CAD	-6
87	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	4710000000	iso4217:CAD	-6
88	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	5295000000	iso4217:CAD	-6
89	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	990000000	iso4217:CAD	-6
90	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	82000000	iso4217:CAD	-6
91	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ToEliminateEffectOfGrossSettlementOfDerivativesUsedToManageCurrencyRisksArisingFromLongTermDebtMember (label) * ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	-4710000000	iso4217:CAD	-6
92	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	6367000000	iso4217:CAD	-6
93	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseIssuingOrReceivingLiabilitiesArisingFromFinancingActivities (label)	11077000000	iso4217:CAD	-6
94	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-4201000000	iso4217:CAD	-6
95	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-4181000000	iso4217:CAD	-6
96	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-600000000	iso4217:CAD	-6
97	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-42000000	iso4217:CAD	-6
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99	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-4843000000	iso4217:CAD	-6
100	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:ShorttermBorrowingsMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-3000000	iso4217:CAD	-6
101	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-1070000000	iso4217:CAD	-6
102	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-1070000000	iso4217:CAD	-6
103	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-9024000000	iso4217:CAD	-6
104	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	tu:PurchaseOfCommonSharesForCancellationMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-179000000	iso4217:CAD	-6
105	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DerivativesUsedToManageCurrencyRisksArisingFromUSDollarDenominatedLongTermDebtMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-4746000000	iso4217:CAD	-6
106	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationCommercialPaperMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-4710000000	iso4217:CAD	-6
107	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusCorporationNotesMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-700000000	iso4217:CAD	-6
108	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:TelusInternationalCdaInc.CreditFacilityMember (label) * tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-56000000	iso4217:CAD	-6
109	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:ToEliminateEffectOfGrossSettlementOfDerivativesUsedToManageCurrencyRisksArisingFromLongTermDebtMember (label) * ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	4710000000	iso4217:CAD	-6
110	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	ifrs-full:LongtermBorrowingsMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-5502000000	iso4217:CAD	-6
111	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendsPayableToHoldersOfCommonSharesMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-1152000000	iso4217:CAD	-6
112	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendsPayableToHoldersOfCommonSharesNetOfDividendsReinvestedInSharesFromTreasuryMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-1082000000	iso4217:CAD	-6
113	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:DividendsReinvestedInSharesFromTreasuryMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	70000000	iso4217:CAD	-6
114	0000868675 (http://www.sec.gov/CIK)	2017-01-01 to 2017-12-31	tu:LongtermBorrowingsIncludingEffectOfDerivativesToManageForeignCurrencyRisksMember (label)	tu:IncreaseDecreaseThroughFinancingRedemptionsRepaymentsOrPaymentsLiabilitiesArisingFromFinancingActivities (label)	-10212000000	iso4217:CAD	-6
115	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:LiabilitiesChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquity (label)	51000000	iso4217:CAD	-6
116	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:LiabilitiesChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControlEquity (label)	47000000	iso4217:CAD	-6
117	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:LiabilitiesCurrentAndDeferredTaxRelatingToItemsCreditedChargedDirectlyToEquity (label)	47000000	iso4217:CAD	-6
118	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:LiabilitiesCurrentAndDeferredTaxRelatingToItemsCreditedChargedDirectlyToEquity (label)	44000000	iso4217:CAD	-6
119	0000868675 (http://www.sec.gov/CIK)	2016-01-01 to 2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:OtherNonCashChangesToGrossProceedsOnShareIssuance (label)	302000000	iso4217:CAD	-6
120	0000868675 (http://www.sec.gov/CIK)	2016-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:ShareIssueRelatedCostPayables (label)	4000000	iso4217:CAD	-6
121	0000868675 (http://www.sec.gov/CIK)	2017-12-31	ifrs-full:SubsidiariesMember (label) * ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember (label)	tu:ShareIssueRelatedCostPayables (label)	3000000	iso4217:CAD	-6

Rules

Type	Defined	Bound	OK	Fail
formula	0	0	0	0
existenceAssertion	0	0	0	0
valueAssertion	0	0	0	0
calculation	328	1439	1329	110

Rule Details

Errors and Warnings

Other than rule related. The error Type is just a conjecture on the culprit, because some 'bad reports' may contain some XBRL feature we have not yet covered.

Type	Where	What
bad_report	loadContext/Duration_12_11_2017_To_12_11_2017	failed((simpleDate(2017-12-11),simpleDate(2017-12-11),2017-12-11@>2017-12-11))
bad_report	loadContext/Duration_12_9_2016_To_12_9_2016	failed((simpleDate(2016-12-09),simpleDate(2016-12-09),2016-12-09@>2016-12-09))
bad_report	loadContext/Duration_2_6_2018_To_2_6_2018_ifrs-full_BusinessCombinationsAxis_tu_XavientInformationSystemsMember_ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_ifrs-full_MajorBusinessCombinationMember	failed((simpleDate(2018-02-06),simpleDate(2018-02-06),2018-02-06@>2018-02-06))
bad_report	loadContext/Duration_2_7_2018_To_2_7_2018	failed((simpleDate(2018-02-07),simpleDate(2018-02-07),2018-02-07@>2018-02-07))
bad_report	loadContext/Duration_2_8_2018_To_2_8_2018_ifrs-full_BorrowingsByNameAxis_tu_TelusInternationalCdaIncRevolvingCreditFacilityMember	failed((simpleDate(2018-02-08),simpleDate(2018-02-08),2018-02-08@>2018-02-08))
bad_report	loadContext/Duration_3_10_2017_To_3_10_2017	failed((simpleDate(2017-03-10),simpleDate(2017-03-10),2017-03-10@>2017-03-10))
bad_report	loadContext/Duration_3_11_2016_To_3_11_2016	failed((simpleDate(2016-03-11),simpleDate(2016-03-11),2016-03-11@>2016-03-11))
bad_report	loadContext/Duration_6_10_2016_To_6_10_2016	failed((simpleDate(2016-06-10),simpleDate(2016-06-10),2016-06-10@>2016-06-10))
bad_report	loadContext/Duration_6_9_2017_To_6_9_2017	failed((simpleDate(2017-06-09),simpleDate(2017-06-09),2017-06-09@>2017-06-09))
bad_report	loadContext/Duration_8_31_2017_To_8_31_2017_ifrs-full_BusinessCombinationsAxis_tu_VoxproLimitedMember	failed((simpleDate(2017-08-31),simpleDate(2017-08-31),2017-08-31@>2017-08-31))
bad_report	loadContext/Duration_9_8_2017_To_9_8_2017	failed((simpleDate(2017-09-08),simpleDate(2017-09-08),2017-09-08@>2017-09-08))
bad_report	loadContext/Duration_9_9_2016_To_9_9_2016	failed((simpleDate(2016-09-09),simpleDate(2016-09-09),2016-09-09@>2016-09-09))

For more information: http://logicalcontracts.com/xbrl-and-sbrm-reporting/
DISCLAIMER: this analysis is provided by software still under development, and likely incomplete or even erroneous; do NOT use it other than for experimental, inconsequential purposes

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Table of Contents

Terms

Model Structures

Fact Tables

Rules

Rule Details

Errors and Warnings