CHINA TELECOM CORP LTD (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 1001 - Document - Document and Entity Information Network

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 http://www.chinatelecom-h.com/taxonomy/role/DocumentandEntityInformation
2 Document Information [Table] Table

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 dei:DocumentInformationTable
3 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
4 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
5 Overseas listed H shares [member] Member cha:HSharesMember
6 Document information [Line Items] LineItems dei:DocumentInformationLineItems
7 Document Type Concept (Submission Type) For Period dei:DocumentType
8 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
9 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
10 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
11 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
12 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
13 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
14 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
15 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
16 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
17 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
18 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
19 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
20 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
21 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
22 1003 - Statement - Consolidated Statements of Financial Position Network

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 http://www.chinatelecom-h.com/taxonomy/role/StatementOfFinancialPositionCurrentNonCurrent-210000
23 Implied Table Table

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24 Non Current Assets Finance Liabilities [abstract] Abstract cha:NonCurrentAssetsFinanceLiabilitiesAbstract
25 ASSETS Abstract ifrs-full:AssetsAbstract
26 Current assets Abstract ifrs-full:CurrentAssetsAbstract
27 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
28 Short-term bank deposits Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents
29 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
30 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
31 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
32 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
33 Income tax recoverable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
34 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
35 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
36 Property, plant and equipment, net Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
37 Construction in progress Concept (Monetary) As Of Debit ifrs-full:ConstructionInProgress
38 Lease prepayments Concept (Monetary) As Of Debit ifrs-full:NoncurrentLeasePrepayments
39 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
40 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
41 Interests in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
42 Investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
43 Equity instruments at fair value through other comprehensive income Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome
44 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
45 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
46 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
47 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
48 LIABILITIES AND EQUITY Abstract ifrs-full:EquityAndLiabilitiesAbstract
49 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
50 Short-term debt Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
51 Current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
52 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
53 Accrued expenses and other payables Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
54 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
55 Income tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
56 Current portion of finance lease obligations Concept (Monetary) As Of Credit ifrs-full:CurrentFinanceLeaseLiabilities
57 Current portion of deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
58 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
59 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
60 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
61 Finance lease obligations Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinanceLeaseLiabilities
62 Deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
63 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
64 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
65 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
66 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
67 Equity Abstract ifrs-full:EquityAbstract
68 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
69 Reserves Concept (Monetary) As Of Credit cha:OtherReservesAndRetainedEarnings
70 Total equity attributable to equity holders of the Company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
71 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
72 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
73 Total liabilities and equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
74 1004 - Statement - Consolidated Statements of Comprehensive Income Network

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 http://www.chinatelecom-h.com/taxonomy/role/StatementOfComprehensiveIncomeProfitOrLossByFunctionOfExpense-310000
75 Implied Table Table

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76 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
77 Operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
78 Operating expenses Abstract ifrs-full:ExpenseByNatureAbstract
79 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
80 Network operations and support Concept (Monetary) For Period Debit cha:NetworkOperationAndSupportExpenses
81 Selling, general and administrative Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
82 Personnel expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
83 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
84 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
85 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
86 Net finance costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
87 Investment income Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
88 Income from investments in associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
89 Earnings before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
90 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
91 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
92 Other comprehensive income for the year, Items that will not be reclassified subsequently to profit or loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
93 Change in fair value of investments in equity instruments at fair value through other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments
94 Deferred tax on change in fair value of investments in equity instruments at fair value through other comprehensive income Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome
95 Items that will not be reclassified subsequently to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax
96 Other comprehensive income for the year, Items that may be reclassified subsequently to profit or loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
97 Change in fair value of available-for-sale equity securities Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxAvailableforsaleFinancialAssets
98 Deferred tax on change in fair value of available-for-sale equity securities Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToAvailableforsaleFinancialAssetsOfOtherComprehensiveIncome
99 Exchange difference on translation of financial statements of subsidiaries outside mainland China Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
100 Share of other comprehensive income of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax
101 Items that may be reclassified subsequently to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
102 Other comprehensive income for the year, net of tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
103 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
104 Profit attributable to Abstract ifrs-full:ProfitLossAttributableToAbstract
105 Equity holders of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
106 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
107 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
108 Total comprehensive income attributable to Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
109 Equity holders of the Company Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
110 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
111 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
112 Basic earnings per share Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
113 Number of shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
114 1005 - Statement - Consolidated Statements of Changes in Equity Network

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 http://www.chinatelecom-h.com/taxonomy/role/StatementOfChangesInEquity-610000
115 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
116 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
117 Equity [member] Member ifrs-full:EquityMember
118 Share capital [member] Member ifrs-full:IssuedCapitalMember
119 Capital reserve [member] Member ifrs-full:CapitalReserveMember
120 Share premium [member] Member ifrs-full:SharePremiumMember
121 Surplus reserve [member] Member cha:SurplusReserveMember
122 Other reserves [Member] Member ifrs-full:MiscellaneousOtherReservesMember
123 Exchange reserve [member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
124 Retained earnings [member] Member ifrs-full:RetainedEarningsMember
125 Attributable to equity holders of the company [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
126 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
127 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
128 Currently stated [member] Member ifrs-full:RestatedMember
129 Changes in accounting policies [member] Member ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember
130 Restated balance [member] Member cha:RestatedBalanceMember
131 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
132 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
133 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
134 Other comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
135 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
136 Disposal of a subsidiary Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary
137 Distribution to non-controlling interests Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToNoncontrollingInterests
138 Dividends Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParent
139 Appropriations Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve
140 Others Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity
141 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
142 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
143 Other comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
144 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
145 Disposal of investments in equity instruments at fair value through other comprehensive income Concept (Monetary) For Period Credit ifrs-full:CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
146 Acquisition of the Eighth Acquired Group Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
147 Disposal of a subsidiary Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughDisposalOfSubsidiary
148 Acquisition of non-controlling interests Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
149 Contribution from non-controlling interests Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
150 Reduction of capital by non-controlling interests Concept (Monetary) For Period Debit ifrs-full:ReductionOfIssuedCapital
151 Distribution to non-controlling interests Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToNoncontrollingInterests
152 Dividends Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParent
153 Appropriations Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve
154 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
155 1006 - Statement - Consolidated Statements of Cash Flows Network

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 http://www.chinatelecom-h.com/taxonomy/role/StatementOfCashFlowsDirectMethod-510000
156 Implied Table Table

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157 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
158 Net cash from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
159 Cash flows used in investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
160 Capital expenditure Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
161 Lease prepayments Concept (Monetary) For Period Credit ifrs-full:CashOutflowForLeases
162 Purchase of investments Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
163 Proceeds from disposal of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
164 Proceeds from disposal of lease prepayments Concept (Monetary) For Period Debit cha:ProceedsFromDisposalOfLeasePrepaymentsClassifiedAsInvestingActivities
165 Proceeds from disposal of investments Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInvestmentsAccountedForUsingEquityMethod
166 Net cash (outflow) / inflow from disposal of subsidiaries Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
167 Purchase of short-term bank deposits Concept (Monetary) For Period Credit cha:CashFlowsUsedInIncreaseInShorttermDeposits
168 Maturity of short-term bank deposits Concept (Monetary) For Period Debit cha:CashFlowsFromDecreaseInShorttermDeposits
169 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
170 Cash flows used in financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
171 Principal element of finance lease payments Concept (Monetary) For Period Credit ifrs-full:PaymentsOfFinanceLeaseLiabilitiesClassifiedAsFinancingActivities
172 Proceeds from bank debt and other loans Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
173 Repayments of bank debt and other loans Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
174 Repayment of deferred consideration in respect of the Mobile Network Acquisition Concept (Monetary) For Period Credit cha:RepaymentOfDeferredConsiderationOfAcquisitionClassifiedAsFinancingActivities
175 Payment of the acquisition price of the Eighth Acquisition (Note 1) Concept (Monetary) For Period Credit cha:PaymentForAcquisitionOfBusiness
176 Payment of dividends Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities
177 Cash distributions to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities
178 Payment for the acquisition of non-controlling interests Concept (Monetary) For Period Credit ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries
179 Contribution from non-controlling interests Concept (Monetary) For Period Debit ifrs-full:ProceedsFromContributionsOfNoncontrollingInterests
180 Reduction of capital by non-controlling interests Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
181 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
182 Net decrease in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
183 Cash and cash equivalents at beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
184 Effect of changes in foreign exchange rate Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
185 Cash and cash equivalents at end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
186 1007 - Statement - Consolidated Statements of Cash Flows (Parenthetical) Network

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 http://www.chinatelecom-h.com/taxonomy/role/StatementOfCashFlowsDirectMethod-510000Parenthetical
187 Statement [table] Table

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 cha:StatementTable
188 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
189 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
190 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
191 Statement [LineItems] LineItems cha:StatementLineItems
192 Earnings before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
193 Adjustments for: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
194 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
195 Credit impairment losses, net of reversal Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeAndOtherReceivables
196 Impairment losses for long-lived assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
197 Write down of inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories
198 Investment income Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
199 Income from investments in associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
200 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
201 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
202 Net foreign exchange (gain) / loss Concept (Monetary) For Period Credit cha:NetForeignExchangeLossGain
203 Net loss on retirement and disposal of long-lived assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
204 Increase in accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
205 Decrease in contract assets Concept (Monetary) For Period Debit cha:AdjustmentsForIncreaseDecreaseInContractAssets
206 Decrease / (increase) in inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
207 Increase in prepayments and other current assets Concept (Monetary) For Period Debit cha:AdjustmentsForDecreaseIncreaseInPrepaymentsAndOtherCurrentAssets
208 Decrease / (increase) in other assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets
209 Increase / (decrease) in accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
210 Increase in accrued expenses and other payables Concept (Monetary) For Period Debit cha:AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherPayables
211 Decrease in contract liabilities Concept (Monetary) For Period Debit cha:AdjustmentsForIncreaseDecreaseInContractLiabilities
212 Decrease in deferred revenues Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDeferredIncome
213 Cash generated from operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
214 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsOperatingActivities
215 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
216 Investment income received Concept (Monetary) For Period Debit ifrs-full:DividendsReceivedClassifiedAsOperatingActivities
217 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
218 Net cash from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
219 Purchase of investments Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
220 1008 - Disclosure - Principal Activities, Organization and Basis of Presentation Network

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221 Implied Table Table

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222 Text block [abstract] Abstract cha:TextBlockAbstract
223 Principal Activities, Organization and Basis of Presentation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
224 1009 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation Network

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225 Implied Table Table

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226 Text block [abstract] Abstract cha:TextBlockAbstract
227 Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
228 1010 - Disclosure - Significant Accounting Policies Network

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229 Implied Table Table

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230 Text block [abstract] Abstract cha:TextBlockAbstract
231 Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
232 1011 - Disclosure - Cash and Cash Equivalents Network

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233 Implied Table Table

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234 Text block [abstract] Abstract cha:TextBlockAbstract
235 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
236 1012 - Disclosure - Accounts Receivable, Net Network

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237 Implied Table Table

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238 Text block [abstract] Abstract cha:TextBlockAbstract
239 Accounts Receivable, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
240 1013 - Disclosure - Contract Assets Network

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241 Implied Table Table

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242 Text block [abstract] Abstract cha:TextBlockAbstract
243 Contract Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueFromContractsWithCustomersExplanatory
244 1014 - Disclosure - Inventories Network

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245 Implied Table Table

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246 Text block [abstract] Abstract cha:TextBlockAbstract
247 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
248 1015 - Disclosure - Prepayments and Other Current Assets Network

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249 Implied Table Table

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250 Text block [abstract] Abstract cha:TextBlockAbstract
251 Prepayments and Other Current Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPrepaymentsAndOtherAssetsExplanatory
252 1016 - Disclosure - Property, Plant and Equipment, Net Network

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253 Implied Table Table

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254 Text block [abstract] Abstract cha:TextBlockAbstract
255 Property, Plant and Equipment, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
256 1017 - Disclosure - Construction in Progress Network

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257 Implied Table Table

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258 Text block [abstract] Abstract cha:TextBlockAbstract
259 Construction in Progress Concept (Text Block (HTML)) For Period cha:DisclosureOfConstructionInProgressExplanatory
260 1018 - Disclosure - Goodwill Network

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261 Implied Table Table

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262 Text block [abstract] Abstract cha:TextBlockAbstract
263 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
264 1019 - Disclosure - Intangible Assets Network

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265 Implied Table Table

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266 Text block [abstract] Abstract cha:TextBlockAbstract
267 Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
268 1020 - Disclosure - Interests in Associates Network

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269 Implied Table Table

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270 Investments accounted for using equity method [abstract] Abstract ifrs-full:InvestmentsAccountedForUsingEquityMethodAbstract
271 Interests in Associates Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInAssociatesExplanatory
272 1021 - Disclosure - Investments Network

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273 Implied Table Table

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274 Text block [abstract] Abstract cha:TextBlockAbstract
275 Investments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory
276 1022 - Disclosure - Equity Instruments at Fair Value Through Other Comprehensive Income Network

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277 Implied Table Table

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278 Text block [abstract] Abstract cha:TextBlockAbstract
279 Equity Instruments at Fair Value Through Other Comprehensive Income Concept (Text Block (HTML)) For Period cha:EquityInstrumentsAtFairValueThroughOtherComprehensiveIncomeExplanatory
280 1023 - Disclosure - Deferred Tax Assets and Liabilities Network

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281 Implied Table Table

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282 Text block [abstract] Abstract cha:TextBlockAbstract
283 Deferred Tax Assets and Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
284 1024 - Disclosure - Other Assets Network

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285 Implied Table Table

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286 Text block [abstract] Abstract cha:TextBlockAbstract
287 Other Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
288 1025 - Disclosure - Short-term and Long-term Debt Network

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289 Implied Table Table

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290 Text block [abstract] Abstract cha:TextBlockAbstract
291 Short-term and Long-term Debt Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
292 1026 - Disclosure - Accounts Payable Network

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293 Implied Table Table

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294 Text block [abstract] Abstract cha:TextBlockAbstract
295 Accounts Payable Concept (Text Block (HTML)) For Period cha:DisclosureOfAccountsPayableExplanatory
296 1027 - Disclosure - Accrued Expenses and Other Payables Network

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297 Implied Table Table

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298 Text block [abstract] Abstract cha:TextBlockAbstract
299 Accrued Expenses and Other Payables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory
300 1028 - Disclosure - Contract Liabilities Network

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301 Implied Table Table

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302 Text block [abstract] Abstract cha:TextBlockAbstract
303 Contract Liabilities Concept (Text Block (HTML)) For Period cha:DisclosureOfContractLiabilitiesExplanatory
304 1029 - Disclosure - Deferred Revenues Network

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305 Implied Table Table

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306 Text block [abstract] Abstract cha:TextBlockAbstract
307 Deferred Revenues Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredIncomeExplanatory
308 1030 - Disclosure - Share Capital Network

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309 Implied Table Table

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310 Text block [abstract] Abstract cha:TextBlockAbstract
311 Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIssuedCapitalExplanatory
312 1031 - Disclosure - Reserves Network

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313 Implied Table Table

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314 Text block [abstract] Abstract cha:TextBlockAbstract
315 Reserves Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory
316 1032 - Disclosure - Operating Revenues Network

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317 Implied Table Table

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318 Text block [abstract] Abstract cha:TextBlockAbstract
319 Operating Revenues Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueExplanatory
320 1033 - Disclosure - Network Operations and Support Expenses Network

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321 Implied Table Table

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322 Text block [abstract] Abstract cha:TextBlockAbstract
323 Network Operations and Support Expenses Concept (Text Block (HTML)) For Period cha:DisclosureOfNetworkOperationAndSupportExpensesExplanatory
324 1034 - Disclosure - Personnel Expenses Network

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325 Implied Table Table

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326 Text block [abstract] Abstract cha:TextBlockAbstract
327 Personnel Expenses Concept (Text Block (HTML)) For Period cha:DisclosureOfPersonnelExpensesExplanatory
328 1035 - Disclosure - Other Operating Expenses Network

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329 Implied Table Table

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330 Text block [abstract] Abstract cha:TextBlockAbstract
331 Other Operating Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingExpenseExplanatory
332 1036 - Disclosure - Net Finance Costs Network

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333 Implied Table Table

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334 Text block [abstract] Abstract cha:TextBlockAbstract
335 Net Finance Costs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
336 1037 - Disclosure - Income Tax Network

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337 Implied Table Table

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338 Text block [abstract] Abstract cha:TextBlockAbstract
339 Income Tax Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
340 1038 - Disclosure - Dividends Network

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341 Implied Table Table

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342 Text block [abstract] Abstract cha:TextBlockAbstract
343 Dividends Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDividendsExplanatory
344 1039 - Disclosure - Basic Earnings Per Share Network

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345 Implied Table Table

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346 Text block [abstract] Abstract cha:TextBlockAbstract
347 Basic Earnings Per Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
348 1040 - Disclosure - Commitments and Contingencies Network

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349 Implied Table Table

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350 Text block [abstract] Abstract cha:TextBlockAbstract
351 Commitments and Contingencies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
352 1041 - Disclosure - Financial Instruments Network

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353 Implied Table Table

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354 Text block [abstract] Abstract cha:TextBlockAbstract
355 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
356 1042 - Disclosure - Capital Management Network

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357 Implied Table Table

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358 Text block [abstract] Abstract cha:TextBlockAbstract
359 Capital Management Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory
360 1043 - Disclosure - Reconciliation of Liabilities Arising from Financing Activities Network

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361 Implied Table Table

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362 Text block [abstract] Abstract cha:TextBlockAbstract
363 Reconciliation of Liabilities Arising from Financing Activities Concept (Text Block (HTML)) For Period cha:DisclosureOfReconciliationOfLiabilitiesFromFinancingActivitiesExplanatory
364 1044 - Disclosure - Related Party Transactions Network

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365 Implied Table Table

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366 Text block [abstract] Abstract cha:TextBlockAbstract
367 Related Party Transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
368 1045 - Disclosure - Post-employment Benefits Plans Network

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369 Implied Table Table

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370 Text block [abstract] Abstract cha:TextBlockAbstract
371 Post-employment Benefits Plans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
372 1046 - Disclosure - Share Appreciation Rights Network

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373 Implied Table Table

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374 Text block [abstract] Abstract cha:TextBlockAbstract
375 Share Appreciation Rights Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
376 1047 - Disclosure - Principal Subsidiaries Network

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377 Implied Table Table

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378 Investments accounted for using equity method [abstract] Abstract ifrs-full:InvestmentsAccountedForUsingEquityMethodAbstract
379 Principal Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
380 1048 - Disclosure - Accounting Estimates and Judgments Network

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381 Implied Table Table

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382 Text block [abstract] Abstract cha:TextBlockAbstract
383 Accounting Estimates and Judgments Concept (Text Block (HTML)) For Period cha:DisclosureOfAccountingEstimatesAndJudgementsExplanatory
384 1049 - Disclosure - Possible Impact of Amendments to Standards , New Standards and Interpretation Issued but Not Yet Effective for the Annual Accounting Period Ended December 31, 2018 Network

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385 Implied Table Table

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386 Text block [abstract] Abstract cha:TextBlockAbstract
387 Possible Impact of Amendments to Standards , New Standards and Interpretation Issued but Not Yet Effective for the Annual Accounting Period Ended December 31, 2018 Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
388 1050 - Disclosure - Event After the Reporting Period Network

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389 Implied Table Table

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390 Text block [abstract] Abstract cha:TextBlockAbstract
391 Event After the Reporting Period Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
392 1051 - Disclosure - Parent and Ultimate Holding Company Network

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393 Implied Table Table

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394 Text block [abstract] Abstract cha:TextBlockAbstract
395 Parent and Ultimate Holding Company Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAdditionalInformationExplanatory
396 1052 - Disclosure - Significant Accounting Policies (Policies) Network

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397 Implied Table Table

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398 Text block [abstract] Abstract cha:TextBlockAbstract
399 Basis of preparation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
400 Basis of consolidation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfConsolidationExplanatory
401 Foreign currencies Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory
402 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
403 Construction in progress Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForConstructionInProgressExplanatory
404 Lease prepayments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLeasePrepaymentsExplanatory
405 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
406 Intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
407 Impairment of long-lived assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
408 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
409 Financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
410 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
411 Revenue from contract with customers (upon application of IFRS 15 in accordance with transitions in note 2.1) Concept (Text Block (HTML)) For Period cha:DisclosureOfAccountingPolicyForRevenueFromContractsWithCustomersExplanatory
412 Revenue recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
413 Leasing Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
414 Net finance costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory
415 Research and development expense Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
416 Employee benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
417 Government grants Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGovernmentGrants
418 Provisions and contingent liabilities Concept (Text Block (HTML)) For Period cha:DescriptionOfAccountingPolicyForProvisionsAndContingentLiabilitiesExplanatory
419 Value-added tax Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory
420 Income tax Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
421 Dividends Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDividendsExplanatory
422 Related parties Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithRelatedPartiesExplanatory
423 Segmental reporting Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory
424 1053 - Disclosure - Principal Activities, Organization and Basis of Presentation (Tables) Network

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425 Implied Table Table

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426 Text block [abstract] Abstract cha:TextBlockAbstract
427 Analysis of Assets and Liabilities of Disposed Subsidiary Concept (Text Block (HTML)) For Period cha:DisclosureOfCarryingAmountsOfAssetsAndLiabilitiesDisposedExplanatory
428 Summary of Gain on Disposal of Subsidiary Concept (Text Block (HTML)) For Period cha:DisclosureOfGainLossOnDisposalOfSubsidiaryExplanatory
429 Summary of Net Cash Inflow from Disposal of Subsidiary Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationOfNetCashInflowArisingFromDisposalOfSubsidiaryExplanatory
430 Summary of Consolidated Financial Statements of Group to Reflect Acquisition of Eighth Acquired Group Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReclassificationsOrChangesInPresentationExplanatory
431 1054 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation (Tables) Network

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432 Implied Table Table

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433 Text block [abstract] Abstract cha:TextBlockAbstract
434 Summary of Impact of IFRS 15 on Reserves Concept (Text Block (HTML)) For Period cha:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsExplanatory
435 Summary of Impact of Implementation of IFRS 15 on Consolidated Statement of Financial Position Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfInitialApplicationOfStandardsOrInterpretations
436 Disclosure of Impact of Implementation of IFRS 15 on Consolidated Statement of Financial Position Concept (Text Block (HTML)) For Period cha:DisclosureOfImpactOfInitialApplicationOfIFRS15OnConsolidatedStatementsOfFinancialPositionExplanatory
437 Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation Concept (Text Block (HTML)) For Period cha:DisclosureOfImpactOfInitialApplicationOfIFRS15OnConsolidatedStatementOfComprehensiveIncomeExplanatory
438 Disclosure of Impact of Implementation of IFRS 15 on Consolidated Statement of Cash Flows Concept (Text Block (HTML)) For Period cha:DisclosureOfImpactOfInitialApplicationOfIFRS15OnConsolidatedStatementOfCashFlowsExplanatory
439 Classification and Measurement of Financial Assets and Other Items Subject to ECL Under IFRS 9 and IAS 39 Concept (Text Block (HTML)) For Period cha:DisclosureOfClassificationOfFinancialAssetsAndLiabilitiesExplanatory
440 Disclosure of Loss Allowances for Financial Assets, Including Account Receivables and Financial Assets Included in Prepayments and Other Current Assets, and Contract Assets Concept (Text Block (HTML)) For Period cha:DisclosureOfLossAllowancesForFinancialAssetsExplanatory
441 Disclosure of Impacts on Opening Consolidated Statement of Financial Position from Application of New Standards Concept (Text Block (HTML)) For Period cha:DisclosureOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsExplanatory
442 1055 - Disclosure - Significant Accounting Policies (Tables) Network

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443 Implied Table Table

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444 Text block [abstract] Abstract cha:TextBlockAbstract
445 Estimated Useful Life for Depreciation Purposes of Property, Plant and Equipment Concept (Text Block (HTML)) For Period cha:DisclosureOfPropertyPlantAndEquipmentEstimatedUsefulLifeExplanatory
446 1056 - Disclosure - Cash and Cash Equivalents (Tables) Network

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447 Implied Table Table

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448 Text block [abstract] Abstract cha:TextBlockAbstract
449 Summary of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
450 1057 - Disclosure - Accounts Receivable, Net (Tables) Network

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451 Statement [table] Table

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452 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
453 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
454 Accounts receivable [member] Member ifrs-full:TradeReceivablesMember
455 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
456 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
457 Telephone and Internet subscribers [member] Member cha:TelephoneAndInternetSubscribersMember
458 Other telecommunications operators and enterprise customers [member] Member cha:OtherTelecommunicationsOperatorsAndEnterpriseCustomersMember
459 Statement [LineItems] LineItems cha:StatementLineItems
460 Summary of Accounts Receivable, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsExplanatory
461 Ageing Analysis of Accounts Receivable not Impaired Concept (Text Block (HTML)) For Period ifrs-full:AnalysisOfAgeOfFinancialAssetsThatArePastDueButNotImpaired
462 Changes in Allowance for Doubtful Debts Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInLossAllowanceAndExplanationOfChangesInGrossCarryingAmountForFinancialInstrumentsExplanatory
463 1058 - Disclosure - Contract Assets (Tables) Network

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464 Implied Table Table

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465 Text block [abstract] Abstract cha:TextBlockAbstract
466 Summary of Contract Assets Concept (Text Block (HTML)) For Period cha:DisclosureOfContractAssetsExplanatory
467 1059 - Disclosure - Inventories (Tables) Network

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468 Implied Table Table

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469 Text block [abstract] Abstract cha:TextBlockAbstract
470 Summary of Inventories Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutInventoriesExplanatory
471 1060 - Disclosure - Prepayments and Other Current Assets (Tables) Network

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472 Implied Table Table

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473 Text block [abstract] Abstract cha:TextBlockAbstract
474 Summary of Prepayments and Other Current Assets Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutPrepaymentsAndOtherCurrentAssetsExplanatory
475 1061 - Disclosure - Property, Plant and Equipment, Net (Tables) Network

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476 Implied Table Table

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477 Text block [abstract] Abstract cha:TextBlockAbstract
478 Summary of Property, Plant and Equipment, Net Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
479 1062 - Disclosure - Construction in Progress (Tables) Network

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480 Implied Table Table

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481 Text block [abstract] Abstract cha:TextBlockAbstract
482 Summary of Construction in Progress Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutConstructionInProgressExplanatory
483 1063 - Disclosure - Goodwill (Tables) Network

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484 Implied Table Table

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485 Text block [abstract] Abstract cha:TextBlockAbstract
486 Summary of Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory
487 1064 - Disclosure - Intangible Assets (Tables) Network

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488 Implied Table Table

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489 Text block [abstract] Abstract cha:TextBlockAbstract
490 Summary of Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
491 1065 - Disclosure - Interests in Associates (Tables) Network

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492 Statement [table] Table

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493 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
494 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
495 Shanghai Information Investment Incorporation [member] Member cha:ShanghaiInformationInvestmentIncorporationMember
496 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
497 Statement [LineItems] LineItems cha:StatementLineItems
498 Summary of Interests in Associates Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutInterestsInAssociatesExplanatory
499 Details of Principal Associates Accounted for under Equity Method Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
500 Summarized Financial Information of Associates and Reconciled to Carrying Amounts of Interests in Associates in Consolidated Financial Statements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfSummarisedFinancialInformationOfAssociateAccountedForUsingEquityMethodToCarryingAmountOfInterestInAssociateExplanatory
501 1066 - Disclosure - Investments (Tables) Network

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502 Implied Table Table

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503 Text block [abstract] Abstract cha:TextBlockAbstract
504 Summary of Investments Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory
505 1067 - Disclosure - Equity Instruments at Fair Value Through Other Comprehensive Income (Tables) Network

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506 Implied Table Table

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507 Text block [abstract] Abstract cha:TextBlockAbstract
508 Summary of Equity Instruments at Fair Value Through Other Comprehensive Income Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfEachInvestmentInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncomeExplanatory
509 1068 - Disclosure - Deferred Tax Assets and Liabilities (Tables) Network

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510 Implied Table Table

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511 Text block [abstract] Abstract cha:TextBlockAbstract
512 Components of Deferred Tax Assets and Deferred Tax Liabilities Concept (Text Block (HTML)) For Period cha:DisclosureOfComponentsOfDeferredTaxAssetsAndLiabilitiesExplanatory
513 Movements in Deferred Tax Assets and Deferred Tax Liabilities Concept (Text Block (HTML)) For Period cha:DisclosureOfMovementInDeferredTaxAssetsAndLiabilitiesExplanatory
514 1069 - Disclosure - Other Assets (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherAssetsExplanatoryTables
515 Implied Table Table

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516 Text block [abstract] Abstract cha:TextBlockAbstract
517 Summary of Other Assets Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutOtherAssetsExplanatory
518 1070 - Disclosure - Short-term and Long-term Debt (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfBorrowingsExplanatoryTables
519 Statement [table] Table

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 cha:StatementTable
520 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
521 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
522 Short-term debt [member] Member cha:ShorttermDebt1Member
523 Long-term debt and payable [member] Member cha:LongtermDebtAndPayableMember
524 Statement [LineItems] LineItems cha:StatementLineItems
525 Summary of Debt Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
526 Aggregate Maturities of Long-term Debt Concept (Text Block (HTML)) For Period cha:DisclosureOfAggregateMaturitiesOfLongtermDebtAndPayableExplanatory
527 1071 - Disclosure - Accounts Payable (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAccountsPayableExplanatoryTables
528 Implied Table Table

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 implied:Table
529 Text block [abstract] Abstract cha:TextBlockAbstract
530 Summary of Accounts Payable Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationOfAccountsPayableExplanatory
531 1072 - Disclosure - Accrued Expenses and Other Payables (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatoryTables
532 Implied Table Table

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 implied:Table
533 Text block [abstract] Abstract cha:TextBlockAbstract
534 Summary of Accrued Expenses and Other Payables Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationOfAccruedExpensesAndOtherPayablesExplanatory
535 1073 - Disclosure - Contract Liabilities (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfContractLiabilitiesExplanatoryTables
536 Implied Table Table

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 implied:Table
537 Text block [abstract] Abstract cha:TextBlockAbstract
538 Summary of Contract Liabilities Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutContractLiabilitiesExplanatory
539 1074 - Disclosure - Deferred Revenues (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfDeferredIncomeExplanatoryTables
540 Implied Table Table

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 implied:Table
541 Text block [abstract] Abstract cha:TextBlockAbstract
542 Summary of Deferred Revenues Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutDeferredRevenuesAndDeferredIncomeExplanatory
543 1075 - Disclosure - Share Capital (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIssuedCapitalExplanatoryTables
544 Implied Table Table

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 implied:Table
545 Text block [abstract] Abstract cha:TextBlockAbstract
546 Summary of Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
547 1076 - Disclosure - Reserves (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfReservesAndOtherEquityInterestExplanatoryTables
548 Implied Table Table

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 implied:Table
549 Text block [abstract] Abstract cha:TextBlockAbstract
550 Summary of Reserves Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutReservesExplanatory
551 1077 - Disclosure - Operating Revenues (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRevenueExplanatoryTables
552 Implied Table Table

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553 Text block [abstract] Abstract cha:TextBlockAbstract
554 Disclosure of Disaggregation of Revenues Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory
555 Components of Operating Revenues Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProductsAndServicesExplanatory
556 1078 - Disclosure - Network Operations and Support Expenses (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfNetworkOperationAndSupportExpensesExplanatoryTables
557 Implied Table Table

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 implied:Table
558 Text block [abstract] Abstract cha:TextBlockAbstract
559 Summary of Network Operations and Support Expenses Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutNetworkOperationAndSupportExpensesExplanatory
560 1079 - Disclosure - Personnel Expenses (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfPersonnelExpensesExplanatoryTables
561 Implied Table Table

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 implied:Table
562 Text block [abstract] Abstract cha:TextBlockAbstract
563 Personnel Expenses by Functions Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutPersonnelExpensesExplanatory
564 1080 - Disclosure - Other Operating Expenses (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfOtherOperatingExpenseExplanatoryTables
565 Implied Table Table

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 implied:Table
566 Text block [abstract] Abstract cha:TextBlockAbstract
567 Summary of Other Operating Expenses Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutOtherOperatingExpenseExplanatory
568 1081 - Disclosure - Net Finance Costs (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinanceIncomeExpenseExplanatoryTables
569 Implied Table Table

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 implied:Table
570 Text block [abstract] Abstract cha:TextBlockAbstract
571 Summary of Net Finance Costs Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutFinanceCostsExplanatory
572 1082 - Disclosure - Income Tax (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfIncomeTaxExplanatoryTables
573 Implied Table Table

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574 Text block [abstract] Abstract cha:TextBlockAbstract
575 Summary of Income Tax in Profit or Loss Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutIncomeTaxExpenseExplanatory
576 Reconciliation of Expected Tax Expense with Actual Tax Expense Concept (Text Block (HTML)) For Period cha:DisclosureOfReconciliationOfEffectiveAndApplicableIncomeTaxExpensesExplanatory
577 1083 - Disclosure - Commitments and Contingencies (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfCommitmentsAndContingentLiabilitiesExplanatoryTables
578 Implied Table Table

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 implied:Table
579 Text block [abstract] Abstract cha:TextBlockAbstract
580 Future Minimum Lease Payments under Non-cancellable Operating Leases Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfMaturityAnalysisOfOperatingLeasePaymentsExplanatory
581 Capital Commitments Concept (Text Block (HTML)) For Period cha:DisclosureOfDetailedInformationAboutCapitalCommitmentsExplanatory
582 1084 - Disclosure - Financial Instruments (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfFinancialInstrumentsExplanatoryTables
583 Statement [table] Table

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 cha:StatementTable
584 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
585 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
586 Accounts receivable [member] Member ifrs-full:TradeReceivablesMember
587 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
588 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
589 Telephone and Internet subscribers [member] Member cha:TelephoneAndInternetSubscribersMember
590 Customers and Contract assets [member] Member ifrs-full:ContractAssetsMember
591 Statement [LineItems] LineItems cha:StatementLineItems
592 Carrying Amounts and Fair Value of Long-term Debt Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory
593 Summary of Accounts Receivables Concept (Text Block (HTML)) For Period cha:DisclosureOfAgeingAnalysisOfAccountsReceivableExplanatory
594 Summary of Accounts Receivables From Enterprise Customers and Contract Assets Concept (Text Block (HTML)) For Period cha:DisclosureOfAccountsReceivableEnterpriseCustomersAndContractAssetsExplanatory
595 Summary of Movements in Loss Allowance Account in Respect of Accounts Receivables Concept (Text Block (HTML)) For Period cha:DisclosureOfMovementsOfLossAllowanceOfTradeReceivablesExplanatory
596 Remaining Contractual Maturities of Financial Liabilities Based on Contractual Undiscounted Cash Flows and Earliest Date of Repayment Required Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
597 Interest Rate Profile of Debt Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsByTypeOfInterestRateExplanatory
598 1085 - Disclosure - Reconciliation of Liabilities Arising from Financing Activities (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfReconciliationOfLiabilitiesFromFinancingActivitiesExplanatoryTables
599 Implied Table Table

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600 Text block [abstract] Abstract cha:TextBlockAbstract
601 Summary of Changes in Group's Liabilities Arising from Financing Activities Concept (Text Block (HTML)) For Period cha:DisclosureDetailedInformationOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory
602 1086 - Disclosure - Related Party Transactions (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfRelatedPartyExplanatoryTables
603 Statement [table] Table

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 cha:StatementTable
604 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
605 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
606 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
607 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
608 Statement [LineItems] LineItems cha:StatementLineItems
609 Principal Transactions and Amounts Due From/To Related Parties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
610 Key Management Personnel Compensation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory
611 1087 - Disclosure - Principal Subsidiaries (Tables) Network

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 http://www.chinatelecom-h.com/taxonomy/role/NotesToFinancialStatementsDisclosureOfInterestsInSubsidiariesExplanatoryTables
612 Implied Table Table

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613 Investments accounted for using equity method [abstract] Abstract ifrs-full:InvestmentsAccountedForUsingEquityMethodAbstract
614 Details of Subsidiaries which Principally Affected Results, Assets and Liabilities of the Group Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
615 1088 - Disclosure - Principal Activities, Organization and Basis of Presentation - Additional Information (Detail) Network

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616 Disclosure of general information about financial statements [Table] Table

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617 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
618 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
619 Domestic shares [member] Member cha:DomesticSharesMember
620 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
621 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
622 Anhui Telecom Company Limited, Fujian Telecom Company Limited, Jiangxi Telecom Company Limited, Guangxi Telecom Company Limited, Chongqing Telecom Company Limited and Sichuan Telecom Company Limited [member] Member cha:FirstAcquiredGroupMember
623 Hubei Telecom Company Limited, Hunan Telecom Company Limited, Hainan Telecom Company Limited, Guizhou Telecom Company Limited, Yunnan Telecom Company Limited, Shaanxi Telecom Company Limited, Gansu Telecom Company Limited, Qinghai Telecom Company Limited, Ningxia Telecom Company Limited and Xinjiang Telecom Company Limited [member] Member cha:SecondAcquiredGroupMember
624 China Telecom Group Beijing Corporation [member] Member cha:FourthAcquisitionMember
625 Digital Trunking Business from Besttone Holding Co., Ltd., a Subsidiary of China Telecommunications Corporation [member] Member cha:SixthAcquiredBusinessMember
626 China Telecom (Europe) Limited [member] Member cha:SeventhAcquiredCompanyMember
627 E-commerce business and video media business from China Telecommunications Corporation and its subsidiaries [member] Member cha:FifthAcquiredGroupMember
628 China Telecom System Integration Co., Ltd., China Telecom Global Limited and China Telecom (Americas) Corporation [member] Member cha:ThirdAcquiredGroupMember
629 Satcom Business [member] Member cha:SatcomBusinessMember
630 Shaanxi Zhonghe Hengtai Insurance Agent Limited [member] Member cha:ShaanxiZhongheHengtaiInsuranceAgentLimitedMember
631 Disclosure of Business Disposal [axis] Axis cha:DisclosureOfBusinessDisposalAxis
632 Disclosure of Business Disposal [domain] Member cha:DisclosureOfBusinessDisposalDomain
633 Chengdu E-store Technology Co., Ltd [member] Member cha:ChengduEStoreTechnologyCoLtdMember
634 Disclosure of general information about financial statements (line items] LineItems cha:DisclosureOfGeneralInformationAboutFinancialStatementsLineItems
635 Number of shares issued on the date of incorporation Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
636 Par value per share of shares issued on the date of incorporation Concept (Share) As Of ifrs-full:ParValuePerShare
637 Percentage of equity interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
638 Total purchase price for acquiring equity interests Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
639 Percentage of equity interest disposed Concept (Percent) As Of cha:PercentageOfEquityDisposed
640 Consideration for the disposal Concept (Monetary) For Period Credit cha:ConsiderationReceivedAndReceivable
641 cash received from disposal of a subsidiary Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
642 Total purchase price for acquiring equity interests Concept (Monetary) For Period Credit ifrs-full:GainRecognisedInBargainPurchaseTransaction
643 1089 - Disclosure - Principal Activities, Organization and Basis of Presentation - Analysis of Assets and Liabilities of Disposed Subsidiary (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosurePrincipalActivitiesOrganizationAndBasisOfPresentationAnalysisOfAssetsAndLiabilitiesOfDisposedSubsidiary
644 Disclosure of general information about financial statements [Table] Table

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 cha:DisclosureOfGeneralInformationAboutFinancialStatementsTable
645 Disclosure of Business Disposal [axis] Axis cha:DisclosureOfBusinessDisposalAxis
646 Disclosure of Business Disposal [domain] Member cha:DisclosureOfBusinessDisposalDomain
647 Chengdu E-store Technology Co., Ltd [member] Member cha:ChengduEStoreTechnologyCoLtdMember
648 Disclosure of general information about financial statements (line items] LineItems cha:DisclosureOfGeneralInformationAboutFinancialStatementsLineItems
649 Current assets Abstract ifrs-full:CurrentAssetsAbstract
650 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
651 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
652 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
653 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
654 Property, plant and equipment, net Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
655 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
656 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
657 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
658 Accrued expenses and other payables Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
659 Net assets disposal of Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
660 1090 - Disclosure - Principal Activities, Organization and Basis of Presentation - Summary of Gain on Disposal of Subsidiary (Detail) Network

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661 Disclosure of general information about financial statements [Table] Table

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662 Disclosure of Business Disposal [axis] Axis cha:DisclosureOfBusinessDisposalAxis
663 Disclosure of Business Disposal [domain] Member cha:DisclosureOfBusinessDisposalDomain
664 Chengdu E-store Technology Co., Ltd [member] Member cha:ChengduEStoreTechnologyCoLtdMember
665 Disclosure of general information about financial statements (line items] LineItems cha:DisclosureOfGeneralInformationAboutFinancialStatementsLineItems
666 Consideration for the disposal Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
667 Net assets disposed of Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
668 Gain on disposal Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedWhenControlInSubsidiaryIsLost
669 1091 - Disclosure - Principal Activities, Organization and Basis of Presentation - Summary of Net Cash Inflow from Disposal of Subsidiary (Detail) Network

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670 Disclosure of general information about financial statements [Table] Table

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671 Disclosure of Business Disposal [axis] Axis cha:DisclosureOfBusinessDisposalAxis
672 Disclosure of Business Disposal [domain] Member cha:DisclosureOfBusinessDisposalDomain
673 Chengdu E-store Technology Co., Ltd [member] Member cha:ChengduEStoreTechnologyCoLtdMember
674 Disclosure of general information about financial statements (line items] LineItems cha:DisclosureOfGeneralInformationAboutFinancialStatementsLineItems
675 Consideration received in cash and cash equivalents Concept (Monetary) For Period Credit ifrs-full:PortionOfConsiderationPaidReceivedConsistingOfCashAndCashEquivalents
676 Less: Cash and cash equivalents disposed of Concept (Monetary) For Period Debit ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013
677 Net cash inflow from disposal of a subsidiary Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
678 1092 - Disclosure - Principal Activities, Organization and Basis of Presentation - Summary of Consolidated Financial Statements of Group to Reflect Acquisition of Eighth Acquired Group (Detail) Network

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679 Disclosure of reclassifications or changes in presentation [table] Table

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680 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
681 Currently stated [member] Member ifrs-full:RestatedMember
682 Previously stated [member] Member ifrs-full:PreviouslyStatedMember
683 Business combinations adjustment [member] Member ifrs-full:BusinessCombinationsMember
684 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
685 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
686 Satcom Business and Zhonghehengtai [member] Member cha:EighthAcquiredGroupMember
687 Disclosure of reclassifications or changes in presentation [line items] LineItems ifrs-full:DisclosureOfReclassificationsOrChangesInPresentationLineItems
688 Operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
689 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
690 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
691 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
692 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
693 1093 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Summary of Impact of IFRS 15 on Reserves (Detail) Network

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694 Disclosure of expected impact of initial application of new standards or interpretations [table] Table

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695 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
696 Currently stated [member] Member ifrs-full:RestatedMember
697 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
698 Disclosure of expected impact of initial application of new standards or interpretations [line items] LineItems ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
699 Consideration payable to customers Concept (Monetary) As Of Credit cha:ConsiderationPayableToCustomers
700 Contract with multiple performance obligations Concept (Monetary) As Of Credit cha:ContractLiabilitiesNoncurrent
701 Incremental costs of obtaining contracts Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
702 Tax effect Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
703 Increase as of 1 January 2018 Concept (Monetary) As Of Credit cha:ImpactsOfTransitionToIFRS15OnReserves
704 1094 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Summary of Impact of Implementation of IFRS 15 on Consolidated Statement of Financial Position (Detail) Network

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705 Disclosure of initial application of standards or interpretations [table] Table

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706 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
707 Currently stated [member] Member ifrs-full:RestatedMember
708 IFRS 15 [member] Member cha:IFRS15Member
709 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
710 Reemeasurement [member] Member cha:RemeasurementAdjustmentsMember
711 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
712 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
713 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
714 Current assets Abstract ifrs-full:CurrentAssetsAbstract
715 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
716 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
717 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
718 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
719 Accrued expenses and other payables Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
720 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
721 Current portion of deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
722 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
723 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
724 Equity Abstract ifrs-full:EquityAbstract
725 Reserves Concept (Monetary) As Of Credit cha:OtherReservesAndRetainedEarnings
726 1095 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Summary of Impact of Implementation of IFRS 15 on Consolidated Statement of Financial Position (Parenthetical) (Detail) Network

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727 Disclosure of initial application of standards or interpretations [table] Table

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728 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
729 Products and services [member] Member ifrs-full:ProductsAndServicesMember
730 Telecommunications service contracts [member] Member cha:TelecommunicationsServiceContractsMember
731 Information and application services [member] Member cha:InformationAndApplicationServiceContractsMember
732 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
733 Currently stated [member] Member ifrs-full:RestatedMember
734 IFRS 15 [member] Member cha:IFRS15Member
735 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
736 Incremental cost to obtain contracts Concept (Monetary) For Period Debit cha:IncrementalCommissionNetOfDeferredTax
737 Unbilled revenue Concept (Monetary) As Of Debit cha:UnbilledRevenue
738 Advance Concept (Monetary) As Of Credit ifrs-full:Advances
739 Deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
740 Consideration payable to customer, netted off deferred tax Concept (Monetary) As Of Credit cha:ConsiderationPayableToCustomerNetOfDeferredTax
741 Consideration allocated to provision of telecommunications services Concept (Monetary) For Period Credit cha:AllocatedRevenue
742 1096 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Disclosure of Impact of Implementation of IFRS 15 on Consolidated Statement of Financial Position (Detail) Network

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743 Disclosure of initial application of standards or interpretations [table] Table

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744 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
745 Currently stated [member] Member ifrs-full:RestatedMember
746 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
747 Amounts without application of IFRS15 [member] Member cha:WithoutApplicationOfIFRS15Member
748 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
749 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
750 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
751 Current assets Abstract ifrs-full:CurrentAssetsAbstract
752 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
753 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
754 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
755 Accrued expenses and other payables Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
756 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
757 Current portion of deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
758 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
759 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
760 Equity Abstract ifrs-full:EquityAbstract
761 Reserves Concept (Monetary) As Of Credit cha:OtherReservesAndRetainedEarnings
762 1097 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Disclosure of Impact of Implementation of IFRS 15 on Consolidated Statement of Comprehensive Income (Detail) Network

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763 Disclosure of initial application of standards or interpretations [table] Table

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764 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
765 Currently stated [member] Member ifrs-full:RestatedMember
766 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
767 Amounts without application of IFRS15 [member] Member cha:WithoutApplicationOfIFRS15Member
768 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
769 Operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
770 Operating expenses Abstract ifrs-full:ExpenseByNatureAbstract
771 Selling, general and administrative Concept (Monetary) For Period Debit cha:SellingGeneralAndAdministrativeExpenses
772 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
773 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
774 Operating profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
775 Profit before taxation Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
776 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
777 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
778 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
779 1098 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Disclosure of Impact of Implementation of IFRS 15 on Consolidated Statement of Cash Flows (Detail) Network

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780 Disclosure of initial application of standards or interpretations [table] Table

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 ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable
781 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
782 Currently stated [member] Member ifrs-full:RestatedMember
783 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
784 Amounts without application of IFRS15 [member] Member cha:WithoutApplicationOfIFRS15Member
785 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
786 Profit before taxation Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
787 Operating profit before changes in working capital Concept (Monetary) For Period Credit cha:OperatingProfitLossBeforeChangesInWorkingCapital
788 Increase in accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
789 Decrease in contract assets Concept (Monetary) For Period Debit cha:AdjustmentsForIncreaseDecreaseInContractAssets
790 Decrease in other assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherAssets
791 Increase in accrued expenses and other payables Concept (Monetary) For Period Debit cha:AdjustmentsForIncreaseDecreaseInAccruedExpensesAndOtherPayables
792 Decrease in contract liabilities Concept (Monetary) For Period Debit cha:AdjustmentsForIncreaseDecreaseInContractLiabilities
793 Decrease in contract revenues Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDeferredIncome
794 Net cash from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
795 1099 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Disclosure of Impact of Implementation of IFRS 15 on Consolidated Statement of Cash Flows (Parenthetical) (Detail) Network

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796 Disclosure of initial application of standards or interpretations [table] Table

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 ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable
797 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
798 Products and services [member] Member ifrs-full:ProductsAndServicesMember
799 Telecommunications service contracts [member] Member cha:TelecommunicationsServiceContractsMember
800 Customer contracts [member] Member cha:CustomerContractsMember
801 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
802 Currently stated [member] Member ifrs-full:RestatedMember
803 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
804 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
805 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
806 Advance Concept (Monetary) As Of Credit ifrs-full:Advances
807 Deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
808 Reduction of operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
809 Reduction of operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
810 Reduction of contract liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueContractLiabilities
811 Increase in contract costs Concept (Monetary) As Of Debit cha:ContractCosts
812 Increase of contract assets Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughCumulativeCatchupAdjustmentsToRevenueContractAssets
813 Increase in contract assets Concept (Monetary) As Of Debit cha:UnbilledRevenue
814 1100 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Classification and Measurement of Financial Assets and Other Items Subject to ECL Under IFRS 9 and IAS 39 (Detail) Network

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815 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
816 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
817 Currently stated [member] Member ifrs-full:RestatedMember
818 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
819 Increase (decrease) due to application of IFRS 9 [member] Member cha:IncreaseDecreaseDueToApplicationOfIFRS9Member
820 Restated balance [member] Member cha:RestatedBalanceMember
821 Effect of overlay approach reclassification [axis] Axis ifrs-full:EffectOfOverlayApproachReclassificationAxis
822 In accordance with IFRS 9 [member] Member ifrs-full:InAccordanceWithIFRS9Member
823 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
824 Changes in accounting policies [member] Member ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember
825 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
826 Investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
827 Equity instruments at FVTOCI Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
828 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
829 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
830 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
831 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
832 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
833 Reserves Concept (Monetary) As Of Credit cha:OtherReservesAndRetainedEarnings
834 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
835 1101 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Classification and Measurement of Financial Assets and Other Items Subject to ECL Under IFRS 9 and IAS 39 (Parenthetical) (Detail) Network

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836 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
837 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
838 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
839 Financial assets measured at fair value through other comprehensive income, category [member] Member ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeCategoryMember
840 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
841 Currently stated [member] Member ifrs-full:RestatedMember
842 IFRS9 [member] Member cha:IFRS9Member
843 IAS 39 [member] Member cha:IAS39Member
844 Type of measurement of expected credit losses [axis] Axis ifrs-full:TypeOfMeasurementOfExpectedCreditLossesAxis
845 Type of measurement of expected credit losses [member] Member ifrs-full:TypeOfMeasurementOfExpectedCreditLossesMember
846 12-month expected credit losses [member] Member ifrs-full:TwelvemonthExpectedCreditLossesMember
847 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
848 Reclassified from investments to equity instruments at FVTOCI Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
849 Unquoted equity investments Concept (Monetary) As Of Debit cha:UnquotedEquityInvestmentsAtCost
850 Fir value gain loss on investments Concept (Monetary) For Period Credit cha:FairValueGainLossOnInvestments
851 Significant increase in credit risk Concept (Monetary) For Period Debit ifrs-full:ChangesInFairValueOfFinancialAssetsAttributableToChangesInCreditRiskOfFinancialAssets
852 Additional credit loss allowance Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
853 Increase (decrease) due to changes in accounting policy Concept (Monetary) For Period Debit cha:IncreaseDecreaseInFinancialAssetsDueToChangesInAccountingPolicy
854 1102 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Disclosure of Loss Allowances for Financial Assets, Including Account Receivables and Financial Assets Included in Prepayments and Other Current Assets, and Contract Assets (Detail) Network

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855 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
856 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
857 Currently stated [member] Member ifrs-full:RestatedMember
858 IAS 39 [member] Member cha:IAS39Member
859 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
860 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
861 Accounts receivable [member] Member ifrs-full:TradeReceivablesMember
862 Current Prepayments And Other Current Assets [member] Member cha:PrepaymentsAndOtherCurrentAssetsMember
863 Measurement [axis] Axis ifrs-full:MeasurementAxis
864 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
865 Remeasurement [member] Member cha:RemeasurementMember
866 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
867 Allowance account for credit losses of financial assets Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
868 1103 - Disclosure - Application of New and Amendments to International Financial Reporting Standards ("IFRSs") and Interpretation - Disclosure of Impacts on Opening Consolidated Statement of Financial Position From Application of New Standards (Detail) Network

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869 Disclosure of expected impact of initial application of new standards or interpretations [table] Table

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 ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable
870 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
871 Currently stated [member] Member ifrs-full:RestatedMember
872 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
873 Increase (decrease) due to application of IFRS 9 [member] Member cha:IncreaseDecreaseDueToApplicationOfIFRS9Member
874 Restated balance [member] Member cha:RestatedBalanceMember
875 Disclosure of expected impact of initial application of new standards or interpretations [line items] LineItems ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems
876 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
877 Investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
878 Equity instruments at fair value through other comprehensive income Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
879 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
880 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
881 Others with no adjustments Concept (Monetary) As Of Debit cha:OtherNoncurrentAssetsWithoutAdjustments
882 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
883 Current assets Abstract ifrs-full:CurrentAssetsAbstract
884 Accounts receivable, net Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
885 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
886 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
887 Others with no adjustments Concept (Monetary) As Of Debit cha:OtherCurrentAssetsWithoutAdjustments
888 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
889 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
890 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
891 Accrued expenses and other payables Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
892 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
893 Current portion of deferred revenues Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
894 Others with no adjustments Concept (Monetary) As Of Credit cha:OtherCurrentLiabilitiesWithoutAdjustments
895 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
896 Net current liabilities Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsLiabilities
897 Total assets less current liabilities Concept (Monetary) As Of Debit ifrs-full:AssetsLessCurrentLiabilities
898 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
899 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
900 Others with no adjustments Concept (Monetary) As Of Credit cha:OtherNonCurrentLiabilitiesWithoutAdjustments
901 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
902 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
903 Equity Abstract ifrs-full:EquityAbstract
904 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
905 Reserves Concept (Monetary) As Of Credit cha:OtherReservesAndRetainedEarnings
906 Total equity attributable to equity holders of the Company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
907 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
908 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
909 Total liabilities and equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
910 1104 - Disclosure - Significant Accounting Policies - Additional Information (Detail) Network

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911 Disclosure of significant accounting policies [Table] Table

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912 Range [axis] Axis ifrs-full:RangeAxis
913 Ranges [member] Member ifrs-full:RangesMember
914 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
915 Top of range [member] Member ifrs-full:TopOfRangeMember
916 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
917 Products and services [member] Member ifrs-full:ProductsAndServicesMember
918 Basic telecommunications services (including voice communication, lease or sale of network resources) [member] Member cha:BasicTelecommunicationsServicesMember
919 Value-added telecommunications services (including Internet access services, short and multimedia messaging services, transmission and application service of electronic data and information) [member] Member cha:ValueAddedTelecommunicationsServicesMember
920 Sales of telecommunications terminals and equipment [member] Member cha:SalesOfTelecommunicationsTerminalsAndEquipmentMember
921 Disclosure of significant accounting policies [line items] LineItems cha:DisclosureOfSignificantAccountingPoliciesLineItems
922 Assets held under finance leases Concept (Monetary) As Of Debit ifrs-full:RecognisedFinanceLeaseAsAssets
923 Land use rights terms Concept (xbrli:durationItemType) For Period cha:LandUseRightsOperatingLeaseTerm
924 Estimated useful lives of software Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
925 Research and development expense Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
926 Output value added tax rate Concept (Percent) For Period cha:OutputValueAddedTaxPercentage
927 Input value added tax rate Concept (Percent) For Period cha:InputValueAddedTaxPercentage
928 Number of operating segments Concept (Integer) For Period cha:NumberOfOperatingSegments1
929 1105 - Disclosure - Significant Accounting Policies - Estimated Useful Life for Depreciation Purposes of Property, Plant and Equipment (Detail) Network

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930 Disclosure of detailed information about property, plant and equipment [Table] Table

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931 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
932 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
933 Buildings and improvements [member] Member cha:BuildingAndBuildingImprovements1Member
934 Telecommunications network plant and equipment [member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
935 Furniture, fixture, motor vehicles and other equipment [member] Member cha:FurnitureAndFixturesAndMotorVehiclesAndOtherEquipmentMember
936 Disclosure of detailed information about property, plant and equipment (line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
937 Estimated useful or depreciable lives of property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
938 1106 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) Network

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939 Implied Table Table

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940 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
941 Cash at bank and in hand Concept (Monetary) As Of Debit ifrs-full:Cash
942 Time deposits with original maturity within three months Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
943 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
944 1107 - Disclosure - Accounts Receivable, Net - Summary of Accounts Receivable, Net (Detail) Network

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945 Disclosure of financial assets [table] Table

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946 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
947 Carrying amount [member] Member ifrs-full:CarryingAmountMember
948 Cost/Deemed cost [member] Member ifrs-full:GrossCarryingAmountMember
949 Allowance for credit losses [member] Member ifrs-full:AllowanceForCreditLossesMember
950 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
951 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
952 Third parties [member] Member cha:ThirdPartiesMember
953 Other telecommunications operators in the PRC [member] Member cha:OtherTelecommunicationsOperatorsInThePRCMember
954 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
955 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
956 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
957 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
958 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
959 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
960 1108 - Disclosure - Accounts Receivable, Net - Additional Information (Detail) Network

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961 Disclosure of financial assets [table] Table

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962 Maturity [axis] Axis ifrs-full:MaturityAxis
963 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
964 Past due 90 days [member] Member cha:MoreThanNinetyDaysMember
965 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
966 Carrying amount [member] Member ifrs-full:CarryingAmountMember
967 Cost/Deemed cost [member] Member ifrs-full:GrossCarryingAmountMember
968 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
969 Accounts receivable from contracts with customers Concept (Monetary) As Of Debit ifrs-full:ReceivablesFromContractsWithCustomers
970 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
971 1109 - Disclosure - Accounts Receivable, Net - Ageing Analysis of Accounts Receivable from Telephone and Internet Subscribers (Detail) Network

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972 Disclosure of financial assets [table] Table

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973 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
974 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
975 Telephone and Internet subscribers [member] Member cha:TelephoneAndInternetSubscribersMember
976 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
977 Carrying amount [member] Member ifrs-full:CarryingAmountMember
978 Cost/Deemed cost [member] Member ifrs-full:GrossCarryingAmountMember
979 Allowance for credit losses [member] Member ifrs-full:AllowanceForCreditLossesMember
980 Maturity [axis] Axis ifrs-full:MaturityAxis
981 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
982 Current, within 1 month [member] Member ifrs-full:NotLaterThanOneMonthMember
983 1 to 3 months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
984 4 to 12 months [member] Member cha:LaterThanFourMonthsAndNotLaterThanOneYearMember
985 More than 12 months [member] Member ifrs-full:LaterThanOneYearMember
986 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
987 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
988 1110 - Disclosure - Accounts Receivable, Net - Ageing Analysis of Accounts Receivable from Other Telecommunications Operators and Enterprise Customers (Detail) Network

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989 Disclosure of financial assets [table] Table

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990 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
991 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
992 Other telecommunications operators and enterprise customers [member] Member cha:OtherTelecommunicationsOperatorsAndEnterpriseCustomersMember
993 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
994 Carrying amount [member] Member ifrs-full:CarryingAmountMember
995 Cost/Deemed cost [member] Member ifrs-full:GrossCarryingAmountMember
996 Allowance for credit losses [member] Member ifrs-full:AllowanceForCreditLossesMember
997 Maturity [axis] Axis ifrs-full:MaturityAxis
998 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
999 Current, within 1 month [member] Member ifrs-full:NotLaterThanOneMonthMember
1000 1 to 3 months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
1001 4 to 12 months [member] Member cha:LaterThanFourMonthsAndNotLaterThanOneYearMember
1002 More than 12 months [member] Member ifrs-full:LaterThanOneYearMember
1003 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1004 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1005 1111 - Disclosure - Accounts Receivable, Net - Ageing Analysis of Accounts Receivable not Impaired (Detail) Network

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1006 Disclosure of financial assets [table] Table

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1007 Impairment of financial assets [axis] Axis ifrs-full:ImpairmentOfFinancialAssetsAxis
1008 Entity's total for impairment of financial assets [member] Member ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
1009 Not past due [member] Member ifrs-full:FinancialAssetsNeitherPastDueNorImpairedMember
1010 Amounts past due [member] Member ifrs-full:FinancialAssetsPastDueButNotImpairedMember
1011 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1012 Past due status [member] Member ifrs-full:PastDueStatusMember
1013 Less than 1 month past due [member] Member cha:LessThanOneMonthPastDueMember
1014 1 to 3 months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
1015 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1016 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1017 1112 - Disclosure - Accounts Receivable, Net - Changes in Allowance for Doubtful Debts (Detail) Network

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1018 Disclosure of financial assets [table] Table

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 ifrs-full:DisclosureOfFinancialAssetsTable
1019 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1020 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1021 Allowance for credit losses [member] Member ifrs-full:AllowanceForCreditLossesMember
1022 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1023 Currently stated [member] Member ifrs-full:RestatedMember
1024 IAS 39 [member] Member cha:IAS39Member
1025 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1026 At end of year Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1027 At beginning of year Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1028 Impairment losses for doubtful debts Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
1029 Accounts receivable written off Concept (Monetary) For Period Debit ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
1030 1113 - Disclosure - Contract Assets - Summary of Contract Assets (Detail) Network

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1031 Disclosure of contract assets [table] Table

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1032 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1033 Currently stated [member] Member ifrs-full:RestatedMember
1034 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
1035 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1036 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1037 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1038 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1039 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1040 Third parties [member] Member cha:ThirdPartiesMember
1041 Disclosure of contract assets [line items] LineItems cha:DisclosureOfContractAssetsLineItems
1042 Contract Assets Concept (Monetary) As Of Debit ifrs-full:ContractAssets
1043 1114 - Disclosure - Inventories - Summary of Inventories (Detail) Network

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1044 Implied Table Table

*

*

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1045 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
1046 Materials and supplies Concept (Monetary) As Of Debit ifrs-full:CurrentRawMaterialsAndCurrentProductionSupplies
1047 Goods for resale Concept (Monetary) As Of Debit ifrs-full:Merchandise
1048 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
1049 1115 - Disclosure - Prepayments and Other Current Assets - Summary of Prepayments and Other Current Assets (Detail) Network

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1050 Disclosure of detailed information about prepayments and other current assets [Table] Table

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1051 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1052 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1053 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1054 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1055 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1056 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1057 Other telecommunications operators in the PRC [member] Member cha:OtherTelecommunicationsOperatorsInThePRCMember
1058 Disclosure of detailed information about prepayments and other current assets [Line Items] LineItems cha:DisclosureOfDetailedInformationAboutPrepaymentsAndOtherCurrentAssetsLineItems
1059 Amounts due from companies Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivablesDueFromRelatedParties
1060 Prepayments in connection with construction work and equipment purchases Concept (Monetary) As Of Debit ifrs-full:CurrentAdvancesToSuppliers
1061 Prepaid expenses and deposits Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
1062 Value-added tax recoverable Concept (Monetary) As Of Debit ifrs-full:CurrentValueAddedTaxReceivables
1063 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1064 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
1065 1116 - Disclosure - Prepayments and Other Current Assets - Summary of Prepayments and Other Current Assets (Parenthetical) (Detail) Network

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1066 Implied Table Table

*

*

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1067 Miscellaneous current assets [abstract] Abstract ifrs-full:MiscellaneousCurrentAssetsAbstract
1068 Unpaid remaining consideration of the contribution from non-controlling interest Concept (Monetary) As Of Credit cha:ReceivablesFromNoncontrollingInterests
1069 1117 - Disclosure - Property, Plant and Equipment, Net - Summary of Property, Plant and Equipment, Net (Detail) Network

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1070 Disclosure of detailed information about property, plant and equipment [Table] Table

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1071 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1072 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1073 Buildings and improvements [member] Member cha:BuildingAndBuildingImprovements1Member
1074 Telecommunications network plant and equipment [member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
1075 Furniture, fixture, motor vehicles and other equipment [member] Member cha:FurnitureAndFixturesAndMotorVehiclesAndOtherEquipmentMember
1076 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1077 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1078 Cost/Deemed cost [member] Member ifrs-full:GrossCarryingAmountMember
1079 Accumulated depreciation, amortization and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1080 Disclosure of detailed information about property, plant and equipment (line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1081 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1082 Depreciation charge for the year Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
1083 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1084 Depreciation and impairment charge for the year Concept (Monetary) For Period Debit cha:DepreciationAndImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1085 Transferred from construction in progress Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment
1086 Retirement and disposal Concept (Monetary) For Period Credit ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment
1087 Disposal of a subsidiary Concept (Monetary) For Period Credit ifrs-full:DecreaseThroughLossOfControlOfSubsidiaryPropertyPlantAndEquipment
1088 Reclassification Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment
1089 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1090 1118 - Disclosure - Construction in Progress - Summary of Construction in Progress (Detail) Network

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1091 Disclosure of detailed information about construction in progress [table] Table

*

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1092 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1093 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1094 Construction in progress [member] Member ifrs-full:ConstructionInProgressMember
1095 Disclosure of detailed information about construction in progress [line items] LineItems cha:DisclosureOfDetailedInformationAboutConstructionInProgressLineItems
1096 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1097 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1098 Transferred to property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersFromConstructionInProgressPropertyPlantAndEquipment
1099 Transferred to intangible assets Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill
1100 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1101 1119 - Disclosure - Goodwill - Summary of Goodwill (Detail) Network

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1102 Implied Table Table

*

*

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1103 Disclosure of reconciliation of changes in goodwill [abstract] Abstract ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillAbstract
1104 Goodwill arising from acquisition of CDMA business Concept (Monetary) As Of Debit ifrs-full:Goodwill
1105 1120 - Disclosure - Goodwill - Additional Information (Detail) Network

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1106 Disclosure of reconciliation of changes in goodwill [table] Table

*

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1107 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1108 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1109 CDMA business [member] Member cha:CDMABusinessMember
1110 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1111 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1112 China Telecom (Macau) Company Limited [member] Member cha:ChinaTelecomMacauCompanyLimitedMember
1113 Tianyi Telecom Terminals Company Limited [member] Member cha:TianyiTelecomTerminalsCompanyLimitedMember
1114 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
1115 Percentage of equity interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1116 Total purchase price for acquiring equity interests Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1117 Net settlement amount of customer-related assets acquired and customer-related liabilities assumed Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1118 Cash flow projected period considering financial budgets for the purpose of goodwill impairment testing Concept (Text/String) For Period ifrs-full:ExplanationOfPeriodOverWhichManagementHasProjectedCashFlows
1119 Pre-tax discount rate for the purpose of goodwill impairment testing Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
1120 Annual growth rate for the purpose of goodwill impairment testing, used for cash flows beyond the five-year period which are projected to perpetuity Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
1121 1121 - Disclosure - Intangible Assets - Summary of Intangible Assets (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureIntangibleAssetsSummaryOfIntangibleAssets
1122 Disclosure of detailed information about intangible assets [table] Table

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1123 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1124 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1125 Cost/Deemed cost [member] Member ifrs-full:GrossCarryingAmountMember
1126 Accumulated depreciation, amortization and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1127 Disclosure of detailed information about intangible assets [Line Items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
1128 Beginning balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1129 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1130 Amortization charge for the year Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
1131 Transferred from construction in progress Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill
1132 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
1133 Disposal of a subsidiary Concept (Monetary) For Period Credit ifrs-full:DecreaseThroughLossOfControlOfSubsidiaryIntangibleAssetsOtherThanGoodwill
1134 Ending balance Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1135 1122 - Disclosure - Interests in Associates - Summary of Interests in Associates (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureInterestsInAssociatesSummaryOfInterestsInAssociates
1136 Disclosure of associates [table] Table

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1137 Measurement [axis] Axis ifrs-full:MeasurementAxis
1138 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
1139 At cost [member] Member ifrs-full:AtCostMember
1140 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1141 Share of post-acquisition changes in net assets Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1142 Unlisted equity investments, at cost Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
1143 Fair value of listed investments Concept (Monetary) As Of Debit cha:FairValueOfListedInvestments
1144 1123 - Disclosure - Interests in Associates - Details of Principal Associates Accounted for under Equity Method (Detail) Network

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1145 Disclosure of associates [table] Table

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1146 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1147 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1148 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1149 Shanghai Information Investment Incorporation [member] Member cha:ShanghaiInformationInvestmentIncorporationMember
1150 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1151 Attributable equity interest Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1152 Principal activities Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
1153 1124 - Disclosure - Interests in Associates - Details of Principal Associates Accounted for under Equity Method (Parenthetical) (Detail) Network

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1154 Disclosure of associates [table] Table

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1156 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1157 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1158 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1159 Interests in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
1160 1125 - Disclosure - Interests in Associates - Summarized Financial Information of China Tower Corporation Limited and Reconciled to Carrying Amounts of Interests in Associates in Consolidated Financial Statements (Detail) Network

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1161 Disclosure of associates [table] Table

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1162 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1163 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1164 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1165 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1166 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
1167 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1168 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1169 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
1170 Operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1171 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1172 Other comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
1173 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1174 Dividend received from the associate Concept (Monetary) For Period Debit ifrs-full:DividendsReceived
1175 Reconcile to the Group's interests in the associate: Abstract cha:ReconciledToGroupInterestsInAssociateAbstract
1176 Net assets of the associate Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
1177 Non-controlling interests of the associate Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
1178 The Group's effective interest in the associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1179 The Group's share of net assets of the associate Concept (Monetary) As Of Debit cha:ShareOfNetAssetsLiabilitiesOfAssociates
1180 Adjustment for the remaining balance of the deferred gain from the Tower Assets Disposal Concept (Monetary) For Period Credit cha:AdjustmentsForGainLossOnDisposalOfAssets
1181 Carrying amount of the interest in the associate in the consolidated financial statements of the Group Concept (Monetary) As Of Debit cha:InvestmentsInAssociatesAccountedForUsingEquityMethodCarryingValue
1182 1126 - Disclosure - Interests in Associates - Summarized Financial Information of Shanghai Information Investment Incorporation and Reconciled to Carrying Amounts of Interests in Associates in Consolidated Financial Statements (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureInterestsInAssociatesSummarizedFinancialInformationOfShanghaiInformationInvestmentIncorporationAndReconciledToCarryingAmountsOfInterestsInAssociatesInConsolidatedFinan_Xh
1183 Disclosure of associates [table] Table

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1185 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1186 Shanghai Information Investment Incorporation [member] Member cha:ShanghaiInformationInvestmentIncorporationMember
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1188 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
1189 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1190 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1191 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
1192 Operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1193 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1194 Other comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
1195 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1196 Dividend received from the associate Concept (Monetary) For Period Debit ifrs-full:DividendsReceived
1197 Reconcile to the Group's interests in the associate: Abstract cha:ReconciledToGroupInterestsInAssociateAbstract
1198 Net assets of the associate Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
1199 Non-controlling interests of the associate Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
1200 The Group's effective interest in the associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1201 The Group's share of net assets of the associate Concept (Monetary) As Of Debit cha:ShareOfNetAssetsLiabilitiesOfAssociates
1202 Carrying amount of the interest in the associate in the consolidated financial statements of the Group Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
1203 1127 - Disclosure - Interests in Associates - Aggregate Financial Information of Individually Immaterial Associates (Detail) Network

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1204 Disclosure of associates [table] Table

*

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1205 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1206 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1207 Aggregated individually immaterial associates [member] Member ifrs-full:AggregatedIndividuallyImmaterialAssociatesMember
1208 Disclosure of associates [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesLineItems
1209 The Group's share of profit of these associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
1210 The Group's share of other comprehensive income of these associates Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1211 The Group's share of total comprehensive income of these associates Concept (Monetary) For Period Credit ifrs-full:ShareOfTotalComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1212 Aggregate carrying amount of interests in these associates in the consolidated financial statements of the Group Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
1213 1128 - Disclosure - Investments - Summary of Investments (Detail) Network

*

*

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1214 Implied Table Table

*

*

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1215 Disclosure of financial assets [abstract] Abstract ifrs-full:DisclosureOfFinancialAssetsAbstract
1216 Available-for-sale listed equity securities Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAvailableforsale
1217 Other unlisted equity investments Concept (Monetary) As Of Debit ifrs-full:EquityInstrumentsHeld
1218 Investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
1219 1129 - Disclosure - Equity Instruments at Fair Value Through Other Comprehensive Income - Summary of Equity Instruments at Fair Value Through Other Comprehensive Income (Detail) Network

*

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1220 Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [table] Table

*

*

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1221 Investments in equity instruments designated at fair value through other comprehensive income [axis] Axis ifrs-full:InvestmentsInEquityInstrumentsMeasuredAtFairValueThroughOtherComprehensiveIncomeAxis
1222 Investments in equity instruments designated at fair value through other comprehensive income [member] Member ifrs-full:InvestmentsInEquityInstrumentsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember
1223 Equity securities listed in the mainland China [member] Member cha:EquitySecuritiesListedMember
1224 Equity Securities Unlisted [member] Member cha:EquitySecuritiesUnlistedMember
1225 Disclosure of Fair Value of Investments in Equity Instruments Designated at Fair Value Through Other Comprehensive Income [Line Items] LineItems ifrs-full:DisclosureOfFairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncomeLineItems
1226 Fair Value Of Investments In Equity Instruments Designated As Measured At Fair Value Through Other Comprehensive Income Concept (Monetary) As Of Debit ifrs-full:FairValueOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
1227 1130 - Disclosure - Deferred Tax Assets and Liabilities - Components of Deferred Tax Assets and Deferred Tax Liabilities (Detail) Network

*

*

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1228 Disclosure of temporary difference, unused tax losses and unused tax credits [Table] Table

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1229 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1230 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1231 Provisions and impairment losses, primarily for credit losses [member] Member cha:ProvisionsAndImpairmentLossesPrimarilyForCreditLossesMember
1232 Property, plant and equipment and others [member] Member cha:PropertyPlantAndEquipmentAndOthersMember
1233 Deferred revenues and installation costs [member] Member cha:DeferredRevenuesAndInstallationCostsMember
1234 Available-for-sale equity securities [member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
1235 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1236 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1237 Investments in equity instruments designated at fair value through other comprehensive income [member] Member ifrs-full:InvestmentsInEquityInstrumentsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember
1238 Deferred tax assets and deferred tax liabilities recognized in the consolidated statement of financial position and the movements [line items] LineItems cha:DeferredTaxAssetsAndDeferredTaxLiabilitiesRecognizedInTheConsolidatedStatementOfFinancialPositionAndTheMovementsLineItems
1239 Assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1240 Liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1241 Net Balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1242 1131 - Disclosure - Deferred Tax Assets and Liabilities - Movements in Deferred Tax Assets and Deferred Tax Liabilities (Detail) Network

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1243 Disclosure of temporary difference, unused tax losses and unused tax credits [Table] Table

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1244 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1245 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1246 Provisions and impairment losses, primarily for doubtful debts [member] Member cha:ProvisionsAndImpairmentLossesPrimarilyForDoubtfulDebtsMember
1247 Property, plant and equipment and others [member] Member cha:PropertyPlantAndEquipmentAndOthersMember
1248 Deferred revenues and installation costs [member] Member cha:DeferredRevenuesAndInstallationCostsMember
1249 Available-for-sale equity securities [member] Member ifrs-full:FinancialAssetsAvailableforsaleCategoryMember
1250 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
1251 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
1252 Investments in equity instruments designated at fair value through other comprehensive income [member] Member ifrs-full:InvestmentsInEquityInstrumentsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember
1253 Deferred tax assets and deferred tax liabilities recognized in the consolidated statement of financial position and the movements [line items] LineItems cha:DeferredTaxAssetsAndDeferredTaxLiabilitiesRecognizedInTheConsolidatedStatementOfFinancialPositionAndTheMovementsLineItems
1254 Beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1255 Increase (decrease) due to changes in accounting policy Concept (Monetary) For Period Debit cha:IncreaseDecreaseInFinancialAssetsDueToChangesInAccountingPolicy
1256 Recognized in consolidated statement of comprehensive income Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
1257 Ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
1258 1132 - Disclosure - Other Assets - Summary of Other Assets (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureOtherAssetsSummaryOfOtherAssets
1259 Disclosure of Other Assets [table] Table

*

*

 cha:DisclosureOfOtherAssetsTable
1260 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1261 Currently stated [member] Member ifrs-full:RestatedMember
1262 Increase (decrease) due to application of IFRS 15 [member] Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
1263 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1264 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1265 Contract costs [member] Member cha:ContractCostsMember
1266 Installation fees [member] Member cha:InstallationFeesMember
1267 Other long-term prepaid expenses [member] Member cha:OtherLongTermPrepaidExpensesMember
1268 Disclosure of other assets [line items] LineItems cha:DisclosureOfOtherAssetsLineItems
1269 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherAssets
1270 1133 - Disclosure - Other Assets - Summary of Other Assets (Parenthetical) (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureOtherAssetsSummaryOfOtherAssetsParenthetical
1271 Disclosure of Other Assets [table] Table

*

*

 cha:DisclosureOfOtherAssetsTable
1272 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1273 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1274 Contract costs [member] Member cha:ContractCostsMember
1275 Disclosure of other assets [line items] LineItems cha:DisclosureOfOtherAssetsLineItems
1276 Capitalized costs Concept (Monetary) For Period Debit cha:CapitalizedCost
1277 1134 - Disclosure - Short-term and Long-term Debt - Summary of Short-term Debt (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShorttermAndLongtermDebtSummaryOfShorttermDebt
1278 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1279 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1280 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1281 Loans from banks - unsecured [member] Member cha:UnsecuredBankLoansMember
1282 Super short-term commercial papers - unsecured [member] Member cha:SuperShorttermCommercialPapersUnsecuredMember
1283 Other loans - unsecured [member] Member cha:UnsecuredOtherLoansMember
1284 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1285 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1286 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1287 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1288 Short-term debt Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1289 1135 - Disclosure - Short-term and Long-term Debt - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShorttermAndLongtermDebtAdditionalInformation
1290 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1291 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1292 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1293 Short-term debt [member] Member cha:ShorttermDebt1Member
1294 Loans from banks - unsecured and other loans - unsecured [member] Member cha:LoansFromBanksUnsecuredAndOtherLoansUnsecuredMember
1295 Super short-term commercial papers - unsecured [member] Member cha:SuperShorttermCommercialPapersUnsecuredMember
1296 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1297 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1298 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1299 Range [axis] Axis ifrs-full:RangeAxis
1300 Ranges [member] Member ifrs-full:RangesMember
1301 Weighted average [member] Member ifrs-full:WeightedAverageMember
1302 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1303 Top of range [member] Member ifrs-full:TopOfRangeMember
1304 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1305 Debt instrument interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1306 Unutilized committed credit facilities amount Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1307 1136 - Disclosure - Short-term and Long-term Debt - Summary of Long-term Debt (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShorttermAndLongtermDebtSummaryOfLongtermDebt
1308 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1309 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1310 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1311 Bank loans - unsecured [member] Member cha:LongTermBankLoansMember
1312 Other loans - unsecured [member] Member cha:LongTermLoansMember
1313 Loans from China Telecom Group - unsecured [member] Member cha:LoansFromTelecomGroupMember
1314 Currency [Axis] Axis srt:CurrencyAxis
1315 All Currencies [Domain] Member currency:AllCurrenciesDomain
1316 Renminbi denominated [member] Member currency:CNY
1317 US Dollars denominated [member] Member currency:USD
1318 Euro denominated [member] Member currency:EUR
1319 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1320 Total long-term debt Concept (Monetary) As Of Credit cha:CurrentAndNoncurrentPortionOfLongtermBorrowings
1321 Less: Current portion Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
1322 Non-current portion Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1323 1137 - Disclosure - Short-term and Long-term Debt - Summary of Long-term Debt (Parenthetical) (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShorttermAndLongtermDebtSummaryOfLongtermDebtParenthetical
1324 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1325 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1326 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1327 Long-term government loans with below-market interest rate [member] Member cha:GovernmentLoansMember
1328 Bank loans - unsecured [member] Member cha:LongTermBankLoansMember
1329 Other loans - unsecured [member] Member cha:LongTermLoansMember
1330 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1331 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1332 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1333 Currency [Axis] Axis srt:CurrencyAxis
1334 All Currencies [Domain] Member currency:AllCurrenciesDomain
1335 Renminbi denominated [member] Member currency:CNY
1336 US Dollars denominated [member] Member currency:USD
1337 Euro denominated [member] Member currency:EUR
1338 Range [axis] Axis ifrs-full:RangeAxis
1339 Ranges [member] Member ifrs-full:RangesMember
1340 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1341 Top of range [member] Member ifrs-full:TopOfRangeMember
1342 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1343 Debt instrument interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1344 Debt instrument maturity through Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1345 Repayment of partially loan Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
1346 1138 - Disclosure - Short-term and Long-term Debt - Aggregate Maturities of Long-term Debt (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShorttermAndLongtermDebtAggregateMaturitiesOfLongtermDebt
1347 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1348 Maturity [axis] Axis ifrs-full:MaturityAxis
1349 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1350 Within 1 year or on demand [member] Member ifrs-full:NotLaterThanOneYearMember
1351 More than 1 year but less than 2 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1352 More than 2 years but less than 3 years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1353 More than 3 years but less than 4 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1354 More than 4 years but less than 5 years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1355 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
1356 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1357 Total long-term debt Concept (Monetary) As Of Credit cha:CurrentAndNoncurrentPortionOfLongtermBorrowings
1358 1139 - Disclosure - Accounts Payable - Summary of Accounts Payable (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureAccountsPayableSummaryOfAccountsPayable
1359 Disclosure of financial liabilities [Table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1360 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1361 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1362 Third parties [member] Member cha:ThirdPartiesMember
1363 Other telecommunications operators in the PRC [member] Member cha:OtherTelecommunicationsOperatorsInThePRCMember
1364 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1365 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1366 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1367 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1368 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1369 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
1370 1140 - Disclosure - Accrued Expenses and Other Payables - Summary of Accrued Expenses and Other Payables (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureAccruedExpensesAndOtherPayablesSummaryOfAccruedExpensesAndOtherPayables
1371 Disclosure of financial liabilities [Table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1372 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1373 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1374 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1375 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1376 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1377 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1378 Other telecommunications operators in the PRC [member] Member cha:OtherTelecommunicationsOperatorsInThePRCMember
1379 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1380 Amounts due to companies Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesToRelatedParties
1381 Accrued expenses Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsCurrent
1382 Value-added tax payable Concept (Monetary) As Of Credit ifrs-full:CurrentValueAddedTaxPayables
1383 Customer deposits and receipts in advance Concept (Monetary) As Of Credit ifrs-full:CurrentAdvances
1384 Accrued expenses and other payables Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
1385 1141 - Disclosure - Accrued Expenses and Other Payables - Summary of Accrued Expenses and Other Payables (Parenthetical) (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureAccruedExpensesAndOtherPayablesSummaryOfAccruedExpensesAndOtherPayablesParenthetical
1386 Disclosure of financial liabilities [Table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1387 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
1388 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
1389 Consideration Payable In Respect of Acquisition of Non-controlling Interests of a Subsidiary of the Group [member] Member cha:ConsiderationPayableInRespectOfAcquisitionOfNonControllingInterestsMember
1390 Consideration Payable In Respect Of Acquisition [member] Member cha:ConsiderationPayableInRespectOfAcquisitionMember
1391 Disclosure of financial liabilities [line items] LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1392 Liabilities arising from financing activities Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1393 Consideration settlement date Concept (invest:dateStringItemType) For Period cha:ConsiderationSettlementDate
1394 1142 - Disclosure - Contract Liabilities - Summary of Contract Liabilities (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureContractLiabilitiesSummaryOfContractLiabilities
1395 Disclosure of contract liabilities [table] Table

*

*

 cha:DisclosureOfContractLiabilitiesTable
1396 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1397 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1398 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1399 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1400 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1401 Third parties [member] Member cha:ThirdPartiesMember
1402 Disclosure of contract liabilities [line items] LineItems cha:DisclosureOfContractLiabilitiesLineItems
1403 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
1404 1143 - Disclosure - Deferred Revenues - Summary of Deferred Revenues (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureDeferredRevenuesSummaryOfDeferredRevenues
1405 Disclosure Of Deferred Revenue [table] Table

*

*

 cha:DisclosureOfDeferredRevenueTable
1406 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1407 Currently stated [member] Member ifrs-full:RestatedMember
1408 Increase (decrease) due to changes in accounting policy [member] Member ifrs-full:FinancialEffectOfChangesInAccountingPolicyMember
1409 Restated balance [member] Member cha:RestatedBalanceMember
1410 Disclosure of Deferred Revenue [line items] LineItems cha:DisclosureOfDeferredRevenueLineItems
1411 Balance at end of last year Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1412 Calling cards Concept (Monetary) For Period Credit cha:RevenueFromCallingCards
1413 Amortization of installation fees Concept (Monetary) For Period Debit cha:AmortizationOfInstallationFees
1414 Usage of calling cards Concept (Monetary) For Period Debit cha:DecreaseInDeferredRevenueDueToUsageOfCallingCards
1415 Amortization of government grants Concept (Monetary) For Period Debit cha:AmortizationOfGovernmentGrants
1416 Balance at end of year Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1417 Current portion Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
1418 Non-current portion Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
1419 1144 - Disclosure - Share Capital - Summary of Share Capital (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShareCapitalSummaryOfShareCapital
1420 Disclosure of classes of share capital [Table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1421 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
1422 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
1423 Domestic shares [member] Member cha:DomesticSharesMember
1424 Overseas listed H shares [member] Member cha:HSharesMember
1425 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1426 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1427 1145 - Disclosure - Share Capital - Summary of Share Capital (Parenthetical) (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShareCapitalSummaryOfShareCapitalParenthetical
1428 Disclosure of classes of share capital [Table] Table

*

*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1429 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
1430 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
1431 Domestic shares [member] Member cha:DomesticSharesMember
1432 Overseas listed H shares [member] Member cha:HSharesMember
1433 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1434 Number of shares registered, issued and fully paid Concept (Shares) As Of ifrs-full:NumberOfSharesIssuedAndFullyPaid
1435 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1436 1146 - Disclosure - Reserves - Summary of Reserves (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureReservesSummaryOfReserves
1437 Disclosure of reserves with in equity [Table] Table

*

*

 ifrs-full:DisclosureOfReservesWithinEquityTable
1438 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1439 Equity [member] Member ifrs-full:EquityMember
1440 Capital reserve [member] Member ifrs-full:CapitalReserveMember
1441 Share premium [member] Member ifrs-full:SharePremiumMember
1442 Surplus reserve [member] Member cha:SurplusReserveMember
1443 Other reserves [Member] Member ifrs-full:MiscellaneousOtherReservesMember
1444 Exchange reserve [member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
1445 Retained earnings [member] Member ifrs-full:RetainedEarningsMember
1446 Reserves [Member] Member ifrs-full:OtherReservesMember
1447 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1448 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1449 Satcom Business and Zhonghehengtai [member] Member cha:EighthAcquiredGroupMember
1450 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1451 Currently stated [member] Member ifrs-full:RestatedMember
1452 Changes in accounting policies [member] Member ifrs-full:IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember
1453 Restated balance [member] Member cha:RestatedBalanceMember
1454 Disclosure of reserves with in equity [line items] LineItems ifrs-full:DisclosureOfReservesWithinEquityLineItems
1455 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
1456 Total comprehensive income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1457 Dividends Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToOwnersOfParent
1458 Appropriations Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve
1459 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
1460 Acquisition of the Eighth Acquired Group Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
1461 Acquisition of non-controlling interests Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
1462 Others Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesEquity
1463 Disposal of investments in equity instruments at fair value through other comprehensive income Concept (Monetary) For Period Credit ifrs-full:CumulativeGainLossOnDisposalOfInvestmentsInEquityInstrumentsDesignatedAsMeasuredAtFairValueThroughOtherComprehensiveIncome
1464 Contribution from non-controlling interests Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
1465 1147 - Disclosure - Reserves - Summary of Reserves (Parenthetical) (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureReservesSummaryOfReservesParenthetical
1466 Disclosure of reserves with in equity [Table] Table

*

*

 ifrs-full:DisclosureOfReservesWithinEquityTable
1467 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1468 Equity [member] Member ifrs-full:EquityMember
1469 Statutory reserves [member] Member ifrs-full:StatutoryReserveMember
1470 Disclosure of reserves with in equity [line items] LineItems ifrs-full:DisclosureOfReservesWithinEquityLineItems
1471 Percentage of net profit the Company is required to transfer to statutory surplus reserve Concept (Percent) For Period cha:PercentageOfNetProfitToBeTransferredToReserveFund
1472 Percentage of registered capital when the appropriation to statutory surplus reserve may cease Concept (Percent) For Period cha:PercentageOfRegisteredCapitalWhenTheAppropriationToTheReserveFundMayCease
1473 Appropriations Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransferToStatutoryReserve
1474 Minimum percentage of statutory reserves to registered capital, after bonus share issuance, that must be maintained Concept (Percent) For Period cha:MinimumPercentageOfReserveFundToRegisteredCapitalAfterBonusShareIssuanceThatMustBeMaintained
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1476 Discretionary surplus reserve Concept (Monetary) As Of Credit ifrs-full:ReserveOfDiscretionaryParticipationFeatures
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1478 Final dividend for financial year 2018 proposed after the end of the reporting period, total Concept (Monetary) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
1479 1148 - Disclosure - Operating Revenues - Disclosure of Disaggregation of Revenues (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureOperatingRevenuesDisclosureOfDisaggregationOfRevenues
1480 Disclosure of Revenue [table] Table

*

*

 cha:DisclosureOfRevenueTable
1481 Timing of transfer of goods or services [axis] Axis ifrs-full:TimingOfTransferOfGoodsOrServicesAxis
1482 Timing of transfer of goods or services [member] Member ifrs-full:TimingOfTransferOfGoodsOrServicesMember
1483 A point in time [member] Member ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember
1484 Over time [member] Member ifrs-full:GoodsOrServicesTransferredOverTimeMember
1485 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1486 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1487 Voice services [member] Member cha:VoiceServicesMember
1488 Internet services [member] Member cha:InternetServicesMember
1489 Information and application services [member] Member cha:InformationAndApplicationServiceContractsMember
1490 Telecommunications network resource and equipment services [member] Member cha:TelecommunicationsNetworkResourceAndEquipmentServicesMember
1491 Others [member] Member cha:SalesOfGoodsAndOthersMember
1492 Disclosure of revenue [line items] LineItems cha:DisclosureOfRevenueLineItems
1493 Revenue from contracts with customers Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
1494 Revenue from other sources Concept (Monetary) For Period Credit cha:OtherOperatingRevenues
1495 Total operating revenues Concept (Monetary) For Period Credit ifrs-full:RevenueAndOperatingIncome
1496 1149 - Disclosure - Operating Revenues - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureOperatingRevenuesAdditionalInformation
1497 Disclosure of Operating Revenue [table] Table

*

*

 cha:DisclosureOfOperatingRevenueTable
1498 Range [axis] Axis ifrs-full:RangeAxis
1499 Ranges [member] Member ifrs-full:RangesMember
1500 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1501 Top of range [member] Member ifrs-full:TopOfRangeMember
1502 Disclosure of Operating Revenue [line items] LineItems cha:DisclosureOfOperatingRevenueLineItems
1503 Estimated period of recognizing revenues Concept (Text/String) For Period ifrs-full:ExplanationOfWhenEntityExpectsToRecogniseTransactionPriceAllocatedToRemainingPerformanceObligationsAsRevenue
1504 Estimated period of recognizing revenues Concept (xbrli:durationItemType) For Period cha:ContractRemainingPerformaceObligationExpectedTerm
1505 1150 - Disclosure - Operating Revenues - Components of Operating Revenues (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureOperatingRevenuesComponentsOfOperatingRevenues
1506 Implied Table Table

*

*

 implied:Table
1507 Revenue [abstract] Abstract ifrs-full:RevenueAbstract
1508 Voice Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfTelephoneServices
1509 Internet Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfInternetServices
1510 Information and application services Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfDataServices
1511 Telecommunications network resource and equipment services Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfInformationTechnologyServices
1512 Others Concept (Monetary) For Period Credit ifrs-full:OtherRevenue
1513 Operating revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1514 1151 - Disclosure - Network Operations and Support Expenses - Summary of Network Operations and Support Expenses (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureNetworkOperationsAndSupportExpensesSummaryOfNetworkOperationsAndSupportExpenses
1515 Implied Table Table

*

*

 implied:Table
1516 Expenses by nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1517 Operating and maintenance Concept (Monetary) For Period Debit cha:OperatingAndMaintenance
1518 Utility Concept (Monetary) For Period Debit ifrs-full:FuelAndEnergyExpense
1519 Property rental and management fee Concept (Monetary) For Period Debit cha:PropertyRentalAndManagementFee
1520 Others Concept (Monetary) For Period Debit cha:OtherNetworkOperationsAndSupportExpenses
1521 Network operations and support expenses Concept (Monetary) For Period Debit cha:NetworkOperationAndSupportExpenses
1522 1152 - Disclosure - Personnel Expenses - Personnel Expenses by Functions (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosurePersonnelExpensesPersonnelExpensesByFunctions
1523 Disclosure of personnel expenses [Table] Table

*

*

 cha:DisclosureOfPersonnelExpensesTable
1524 Key operation activities [axis] Axis cha:KeyOperationActivitiesAxis
1525 Key operation activities [domain] Member cha:KeyOperationActivitiesDomain
1526 Network operations and support [member] Member cha:NetworkOperationsAndSupportMember
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1529 Personnel expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1530 1153 - Disclosure - Other Operating Expenses - Summary of Other Operating Expenses (Detail) Network

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*

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1531 Implied Table Table

*

*

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1532 Expenses by nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1533 Interconnection charges Concept (Monetary) For Period Debit ifrs-full:CommunicationExpense
1534 Cost of goods sold Concept (Monetary) For Period Debit ifrs-full:CostOfMerchandiseSold
1535 Donations Concept (Monetary) For Period Debit ifrs-full:DonationsAndSubsidiesExpense
1536 Others Concept (Monetary) For Period Debit ifrs-full:MiscellaneousOtherOperatingExpense
1537 Other operating expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1538 1154 - Disclosure - Net Finance Costs - Summary of Net Finance Costs (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureNetFinanceCostsSummaryOfNetFinanceCosts
1539 Disclosure of finance costs [Table] Table

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1545 Interest expense incurred Concept (Monetary) For Period ifrs-full:InterestCostsIncurred
1546 Less: Interest expense capitalized Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
1547 Net interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
1548 Interest income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1549 Foreign exchange losses Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
1550 Foreign exchange gains Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
1551 Net finance costs Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
1552 Capitalization rate of interest expense in construction in progress per annum Concept (Percent) For Period ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation
1553 1155 - Disclosure - Income Tax - Summary of Income Tax in Profit or Loss (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureIncomeTaxSummaryOfIncomeTaxInProfitOrLoss
1554 Disclosure of income tax expense and deferred taxes [Table] Table

*

*

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1558 Other tax jurisdictions [member] Member ifrs-full:ForeignCountriesMember
1559 Disclosure of income tax expense and deferred taxes [line items] LineItems cha:DisclosureOfIncomeTaxExpenseAndDeferredTaxesLineItems
1560 Provision for income tax Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1561 Deferred taxation Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1562 Actual income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1563 1156 - Disclosure - Income Tax - Reconciliation of Expected Tax Expense with Actual Tax Expense (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureIncomeTaxReconciliationOfExpectedTaxExpenseWithActualTaxExpense
1564 Implied Table Table

*

*

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1566 Earnings before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
1567 Expected income tax expense at statutory tax rate of 25% Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1568 Differential tax rate on PRC subsidiaries' and branches' income Concept (Monetary) For Period Debit cha:TaxEffectOfDifferentTaxRatesApplicableToSubsidiaries
1569 Differential tax rate on other subsidiaries' income Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1570 Non-deductible expenses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
1571 Non-taxable income Concept (Monetary) For Period Credit ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011
1572 Others Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1573 Actual income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1574 1157 - Disclosure - Income Tax - Reconciliation of Expected Tax Expense with Actual Tax Expense (Parenthetical) (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureIncomeTaxReconciliationOfExpectedTaxExpenseWithActualTaxExpenseParenthetical
1575 Disclosure Of Reconciliation Of Average Effective Tax Rate And Applicable Tax Rate [table] Table

*

*

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1578 CHINA (member) Member country:CN
1579 Other tax jurisdictions [member] Member ifrs-full:ForeignCountriesMember
1580 Range [axis] Axis ifrs-full:RangeAxis
1581 Ranges [member] Member ifrs-full:RangesMember
1582 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1583 Top of range [member] Member ifrs-full:TopOfRangeMember
1584 Disclosure of reconciliation of average effective tax rate and applicable tax rate [line items] LineItems cha:DisclosureOfReconciliationOfAverageEffectiveTaxRateAndApplicableTaxRateLineItems
1585 Income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1586 Preferential income tax rate Concept (Percent) For Period cha:PreferentialIncomeTaxRate
1587 1158 - Disclosure - Dividends - Additional Information (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureDividendsAdditionalInformation
1588 Implied Table Table

*

*

 implied:Table
1589 Disclosure of Dividends [abstract] Abstract cha:DisclosureOfDividendsAbstract
1590 Final dividend for financial year 2018 proposed after the end of the reporting period, per share Concept (Share) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
1591 Final dividend for financial year 2018 proposed after the end of the reporting period, total Concept (Monetary) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
1592 Dividends paid, per share Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
1593 Dividends paid, total Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
1594 1159 - Disclosure - Basic Earnings Per Share - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureBasicEarningsPerShareAdditionalInformation
1595 Implied Table Table

*

*

 implied:Table
1596 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
1597 Profit attributable to equity holders of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
1598 Number of shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
1599 1160 - Disclosure - Commitments and Contingencies - Future Minimum Lease Payments under Non-cancellable Operating Leases (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureCommitmentsAndContingenciesFutureMinimumLeasePaymentsUnderNoncancellableOperatingLeases
1600 Disclosure of finance lease and operating lease by lessee [Table] Table

*

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 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1601 Maturity [axis] Axis ifrs-full:MaturityAxis
1602 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1603 Within 1 year or on demand [member] Member ifrs-full:NotLaterThanOneYearMember
1604 More than 1 year but less than 2 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1605 More than 2 years but less than 3 years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1606 More than 3 years but less than 4 years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1607 More than 4 years but less than 5 years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1608 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
1609 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1610 Future minimum lease payments under non-cancellable operating leases Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1611 1161 - Disclosure - Commitments and Contingencies - Additional Information (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformation
1612 Implied Table Table

*

*

 implied:Table
1613 Material income and expense [abstract] Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
1614 Rental expense related to operating leases Concept (Monetary) For Period Debit ifrs-full:RentalExpense
1615 1162 - Disclosure - Commitments and Contingencies - Capital Commitments (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureCommitmentsAndContingenciesCapitalCommitments
1616 Disclosure of commitments [Table] Table

*

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1617 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
1618 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
1619 Property [member] Member ifrs-full:LandMember
1620 Telecommunications network plant and equipment [member] Member ifrs-full:CommunicationAndNetworkEquipmentMember
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1622 Capital commitments, Contracted for but not provided Concept (Monetary) As Of Credit ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment
1623 Capital commitments Concept (Monetary) As Of Credit ifrs-full:ContractualCapitalCommitments
1624 1163 - Disclosure - Financial Instruments - Additional Information (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsAdditionalInformation
1625 Disclosure of detailed information about financial instruments [table] Table

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*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
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1629 Top of range [member] Member ifrs-full:TopOfRangeMember
1630 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1631 Interest rates used by the Group in estimating the fair values of long-term debt Concept (Percent) For Period cha:InterestRatesUsedInEstimatingFairValues
1632 Transfers among instruments between levels of fair value Concept (Monetary) For Period cha:TransfersBetweenLevelsOfFairValueHierarchyLiabilities
1633 Loss allowance for accounts receivable Concept (Monetary) As Of Credit cha:LossAllowanceForReceivables
1634 Loss allowance for contract assets Concept (Monetary) For Period Credit cha:LossAllowanceForContractAssets
1635 Loss allowance individually calculated Concept (Monetary) For Period Credit cha:LossAllowanceIndividuallyCalculated
1636 Minimum period for managing liquidity risk Concept (xbrli:durationItemType) For Period cha:MinimumPeriodForFinancialAssetsHeldForManagingLiquidityRisk
1637 Fixed rate debt as a percentage of total debt Concept (Percent) As Of cha:PercentageOfFixedRateLongTermDebtOnTotalOutstandingDebt
1638 Percentage of cash and cash equivalents denominated in Renminbi Concept (Percent) As Of cha:PercentageOfCashAndCashEquivalentsHeldInDomesticCurrency
1639 Percentage of short-term and long-term debt denominated in Renminbi Concept (Percent) As Of cha:PercentageOfDebtHeldInDomesticCurrency
1640 1164 - Disclosure - Financial Instruments - Carrying Amounts and Fair Value of Long-term Debt (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsCarryingAmountsAndFairValueOfLongtermDebt
1641 Disclosure of financial liabilities [Table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
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1646 Carrying amount Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1647 Fair value Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
1648 1165 - Disclosure - Financial Instruments - Summary of Accounts Receivables (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfAccountsReceivables
1649 Disclosure of information about Group's exposure to credit risk and expected credit losses for accounts receivable [table] Table

*

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 cha:DisclosureOfInformationAboutGroupExposureToCreditRiskAndExpectedCreditLossesForAccountsReceivableTable
1650 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1651 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1652 Telephone and Internet subscribers [member] Member cha:TelephoneAndInternetSubscribersMember
1653 Maturity [axis] Axis ifrs-full:MaturityAxis
1654 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1655 Current, within 1 month [member] Member ifrs-full:NotLaterThanOneMonthMember
1656 1 to 3 months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
1657 4 to 6 months [member] Member cha:LaterThanFourMonthsAndNotLaterThanSixMonthsMember
1658 7 to 12 months [member] Member cha:LaterThanSevenMonthsAndNotLaterThanTwelveMonthsMember
1659 More than 12 months [member] Member ifrs-full:LaterThanOneYearMember
1660 Disclosure of information about Group's exposure to credit risk and expected credit losses for accounts receivable [line items] LineItems cha:DisclosureOfInformationAboutGroupExposureToCreditRiskAndExpectedCreditLossesForAccountsReceivableLineItems
1661 Expected loss rate Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
1662 Gross carrying amount Concept (Monetary) As Of Debit ifrs-full:ReceivablesFromContractsWithCustomers
1663 Loss allowance Concept (Monetary) As Of Credit cha:LossAllowanceForReceivables
1664 1166 - Disclosure - Financial Instruments - Summary of Accounts Receivable From Enterprise Customers and Contract Assets (Detail) Network

*

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfAccountsReceivableFromEnterpriseCustomersAndContractAssets
1665 Disclosure of information about Group's exposure to credit risk and expected credit losses for accounts receivable [table] Table

*

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1666 Types of customers [axis] Axis ifrs-full:TypesOfCustomersAxis
1667 Types of customers [member] Member ifrs-full:TypesOfCustomersMember
1668 Enterprise customers and contract assets [member] Member cha:EnterpriseCustomersAndContractAssetsMember
1669 Maturity [axis] Axis ifrs-full:MaturityAxis
1670 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1671 Later than one month and not later than six months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanSixMonthsMember
1672 7 to 12 months [member] Member cha:LaterThanSevenMonthsAndNotLaterThanTwelveMonthsMember
1673 More than 1 year but less than 2 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1674 More than 2 years but less than 3 years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1675 Later than three years [member] Member ifrs-full:LaterThanThreeYearsMember
1676 Disclosure of information about Group's exposure to credit risk and expected credit losses for accounts receivable [line items] LineItems cha:DisclosureOfInformationAboutGroupExposureToCreditRiskAndExpectedCreditLossesForAccountsReceivableLineItems
1677 Expected loss rate Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
1678 Gross carrying amount Concept (Monetary) As Of Debit ifrs-full:ReceivablesFromContractsWithCustomers
1679 Loss allowance Concept (Monetary) As Of Credit cha:LossAllowanceForReceivables
1680 1167 - Disclosure - Financial Instruments - Summary of Movements in Loss Allowance Account in Respect of Accounts Receivables (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfMovementsInLossAllowanceAccountInRespectOfAccountsReceivables
1681 Disclosure of financial assets [table] Table

*

*

 ifrs-full:DisclosureOfFinancialAssetsTable
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1684 Accounts receivable [member] Member ifrs-full:TradeReceivablesMember
1685 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
1686 Currently stated [member] Member ifrs-full:RestatedMember
1687 IAS 39 [member] Member cha:IAS39Member
1688 IFRS9 [member] Member cha:IFRS9Member
1689 Disclosure of financial assets [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsLineItems
1690 Allowance account for credit losses of financial assets Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1691 At beginning of year Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1692 Impairment losses for ECL Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
1693 Accounts receivable written off Concept (Monetary) For Period Debit ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
1694 At end of year Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1695 1168 - Disclosure - Financial Instruments - Remaining Contractual Maturities of Financial Liabilities Based on Contractual Undiscounted Cash Flows and Earliest Date of Repayment Required (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsRemainingContractualMaturitiesOfFinancialLiabilitiesBasedOnContractualUndiscountedCashFlowsAndEarliestDateOfRepaymentRequired
1696 Disclosure of maturity analysis for non-derivative financial liabilities [Table] Table

*

*

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1698 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1699 Within 1 year or on demand [member] Member ifrs-full:NotLaterThanOneYearMember
1700 More than 1 year but less than 2 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1701 More than 2 years but less than 5 years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanFiveYearsMember
1702 More than 5 years [member] Member ifrs-full:LaterThanFiveYearsMember
1703 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1704 Short-term debt, carrying amount Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1705 Long-term debt, carrying amount Concept (Monetary) As Of Credit cha:CurrentAndNoncurrentPortionOfLongtermBorrowings
1706 Accounts payable, carrying amount Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
1707 Accrued expenses and other payables, carrying amount Concept (Monetary) As Of Credit ifrs-full:CurrentAccruedExpensesAndOtherCurrentLiabilities
1708 Finance lease obligations, carrying amount Concept (Monetary) As Of Credit ifrs-full:FinanceLeaseLiabilities
1709 Financial liabilities, carrying amount Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1710 Short-term debt, contractual undiscounted cash flow Concept (Monetary) As Of Credit cha:ShortTermBorrowingsUndiscountedCashFlows
1711 Long-term debt, contractual undiscounted cash flow Concept (Monetary) As Of Credit cha:LongTermDebtUndiscountedCashFlows
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1715 Financial liabilities, contractual undiscounted cash flow Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
1716 1169 - Disclosure - Financial Instruments - Interest Rate Profile of Debt (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureFinancialInstrumentsInterestRateProfileOfDebt
1717 Disclosure of financial instruments by type of interest rate [table] Table

*

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1726 Disclosure of financial instruments by type of interest rate [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems
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1732 1170 - Disclosure - Capital Management - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureCapitalManagementAdditionalInformation
1733 Implied Table Table

*

*

 implied:Table
1734 Disclosure of objectives, policies and processes for managing capital [abstract] Abstract ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
1735 Total debt-to-total assets ratio Concept (Percent) As Of cha:PercentageOfDebtToAssets
1736 1171 - Disclosure - Reconciliation of Liabilities Arising from Financing Activities - Summary of Changes in Group's Liabilities Arising from Financing Activities (Detail) Network

*

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosureReconciliationOfLiabilitiesArisingFromFinancingActivitiesSummaryOfChangesInGroupsLiabilitiesArisingFromFinancingActivities
1737 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
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1740 Short-term Debt [member] Member ifrs-full:ShorttermBorrowingsMember
1741 Long-term debt and payable [member] Member cha:LongtermDebtAndPayableMember
1742 Finance Lease Obligation [member] Member ifrs-full:LeaseLiabilitiesMember
1743 Other payables in respect of reduction of capital by non-controlling interests [member] Member cha:OtherPayablesInRespectOfReductionOfCapitalByNoncontrollingInterestsMember
1744 Consideration Payable In Respect Of Acquisition [member] Member cha:ConsiderationPayableInRespectOfAcquisitionMember
1745 Consideration Payable In Respect of Acquisition of Non-controlling Interests of a Subsidiary of the Group [member] Member cha:ConsiderationPayableInRespectOfAcquisitionOfNonControllingInterestsMember
1746 Dividend Payable [member] Member cha:DividendsPayableMember
1747 Disclosure of reconciliation of liabilities arising from financing activities [line Items] LineItems ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
1748 Beginning balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1749 Financing cash flows Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities
1750 New finance leases Concept (Monetary) For Period Credit ifrs-full:IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities
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1752 Foreign exchange loss/(gain) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1753 Acquisition of the Eighth Acquired Group Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
1754 Reduction of capital by non-controlling interests Concept (Monetary) For Period Debit ifrs-full:ReductionOfIssuedCapital
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1760 1172 - Disclosure - Reconciliation of Liabilities Arising from Financing Activities - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureReconciliationOfLiabilitiesArisingFromFinancingActivitiesAdditionalInformation
1761 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
1762 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1763 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1764 E Surfing Pay [member] Member cha:ESurfingPayMember
1765 Disclosure of reconciliation of liabilities arising from financing activities [line Items] LineItems ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
1766 Financing cash flows Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities
1767 Contribution from non-controlling interests Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangeInEquityOfSubsidiaries
1768 Prepayments and other current assets Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
1769 1173 - Disclosure - Related Party Transactions - Principal Transactions and Amounts Due From/To China Telecom Group (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureRelatedPartyTransactionsPrincipalTransactionsAndAmountsDueFromToChinaTelecomGroup
1770 Disclosure of transactions between related parties [Table] Table

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*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1771 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1772 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1773 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1774 Disclosure of transactions between related parties [Line Items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1775 Construction and engineering services Concept (Monetary) For Period Debit cha:ConstructionAndEngineeringServicesRelatedPartyTransactions
1776 Receiving ancillary services Concept (Monetary) For Period Debit cha:ServicesReceivedAncillaryRelatedPartyTransactions
1777 Interconnection revenues Concept (Monetary) For Period Credit cha:InterconnectionRevenuesRelatedPartyTransactions
1778 Interconnection charges Concept (Monetary) For Period Debit cha:InterconnectionChargesRelatedPartyTransactions
1779 Receiving community services Concept (Monetary) For Period Debit cha:ServicesReceivedCommunityServicesRelatedPartyTransactions
1780 Net transaction amount of centralized services Concept (Monetary) For Period Debit cha:NetTransactionCentralizedServicesRelatedPartyTransactions
1781 Property lease income Concept (Monetary) For Period Credit cha:PropertyLeaseIncomeRelatedPartyTransactions
1782 Property lease expenses Concept (Monetary) For Period Debit cha:PropertyLeaseExpensesRelatedPartyTransactions
1783 Provision of IT services Concept (Monetary) For Period Credit cha:ProvisionOfInformationTechnologyServicesRelatedPartyTransactions
1784 Receiving IT services Concept (Monetary) For Period Debit cha:ServicesReceivedInformationTechnologyRelatedPartyTransactions
1785 Purchases of telecommunications equipment and materials Concept (Monetary) For Period Debit ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions
1786 Sales of telecommunications equipment and materials Concept (Monetary) For Period Credit ifrs-full:SalesOfPropertyAndOtherAssetsRelatedPartyTransactions
1787 Internet applications channel services Concept (Monetary) For Period Credit cha:InternetApplicationsChannelServicesRelatedPartyTransactions
1788 Interest on amounts due to and loans from China Telecom Group Concept (Monetary) For Period Debit cha:InterestOnAmountsDueToAndLoansFromRelatedPartyTransactions
1789 Others Concept (Monetary) For Period Credit cha:OtherRelatedPartyTransactions
1790 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
1791 Contract assets Concept (Monetary) As Of Debit cha:ContractAssetsRelatedPartyTransactions
1792 Prepayments and other current assets Concept (Monetary) As Of Debit cha:PrepaymentsAndOtherCurrentAssetsRelatedPartyTransactions
1793 Total amounts due from related party Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1794 Accounts payable Concept (Monetary) As Of Credit cha:TradePayablesToRelatedPartyTransactions
1795 Accrued expenses and other payables Concept (Monetary) As Of Credit cha:AccruedExpensesAndOtherPayablesRelatedPartyTransactions
1796 Contract liabilities Concept (Monetary) As Of Credit cha:ContractLiabilitesRelatedPartyTransactions
1797 Short-term debt Concept (Monetary) As Of Credit cha:ShortTermDebtRelatedPartyTransactions
1798 Long-term debt Concept (Monetary) As Of Credit cha:LongTermDebtRelatedPartyTransactions
1799 Total amounts due to related party Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1800 1174 - Disclosure - Related Party Transactions - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureRelatedPartyTransactionsAdditionalInformation
1801 Disclosure of transactions between related parties [Table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1802 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1803 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1804 China Telecom Group [member] Member cha:ChinaTelecomGroupMember
1805 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1806 Disclosure of transactions between related parties [Line Items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1807 Loss allowance Concept (Monetary) As Of Credit ifrs-full:ProvisionsForDoubtfulDebtsRelatedToOutstandingBalancesOfRelatedPartyTransaction
1808 1175 - Disclosure - Related Party Transactions - Principal Transactions and Amounts Due From/To China Tower (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureRelatedPartyTransactionsPrincipalTransactionsAndAmountsDueFromToChinaTower
1809 Disclosure of transactions between related parties [Table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1810 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1811 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1812 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1813 Disclosure of transactions between related parties [Line Items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1814 Tower assets lease and related fee Concept (Monetary) For Period Credit cha:PaymentOnAssetLeaseFeeRelatedPartyTransactions
1815 Provision of IT services Concept (Monetary) For Period Credit cha:ProvisionOfInformationTechnologyServicesRelatedPartyTransactions
1816 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
1817 Prepayments and other current assets Concept (Monetary) As Of Debit cha:PrepaymentsAndOtherCurrentAssetsRelatedPartyTransactions
1818 Total amounts due from related party Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1819 Accounts payable Concept (Monetary) As Of Credit cha:TradePayablesToRelatedPartyTransactions
1820 Accrued expenses and other payables Concept (Monetary) As Of Credit cha:AccruedExpensesAndOtherPayablesRelatedPartyTransactions
1821 Total amounts due to related party Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1822 1176 - Disclosure - Related Party Transactions - Key Management Personnel Compensation (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureRelatedPartyTransactionsKeyManagementPersonnelCompensation
1823 Implied Table Table

*

*

 implied:Table
1824 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
1825 Short-term employee benefits. Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1826 Post-employment benefits. Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1827 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1828 1177 - Disclosure - Post-employment Benefits Plans - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosurePostemploymentBenefitsPlansAdditionalInformation
1829 Disclosure of defined benefit plans [table] Table

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*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
1830 Range [axis] Axis ifrs-full:RangeAxis
1831 Ranges [member] Member ifrs-full:RangesMember
1832 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1833 Top of range [member] Member ifrs-full:TopOfRangeMember
1834 Disclosure of defined benefit plans [Line Items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
1835 Contributions to the retirement plans, percentage of the salaries, bonuses and certain allowances of the employees Concept (Percent) As Of cha:ContributionsToPlanNetDefinedBenefitLiabilityAssetPercentage
1836 Contribution to post-employment benefit plans Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
1837 Amount payable for contributions to defined contribution retirement plans Concept (Monetary) As Of Credit ifrs-full:ProvisionsForEmployeeBenefits
1838 1178 - Disclosure - Share Appreciation Rights - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureShareAppreciationRightsAdditionalInformation
1839 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1840 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1841 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1842 Third Anniversary [member] Member cha:ThirdAnniversaryMember
1843 Fourth Anniversary [member] Member cha:FourthAnniversaryMember
1844 Fifth Anniversary [member] Member cha:FifthAnniversaryMember
1845 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1846 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1847 Share appreciation rights [member] Member cha:ShareAppreciationRightsMember
1848 Disclosure of terms and conditions of share-based payment arrangement [Line Items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1849 Proportion of share appreciation right to total remuneration Concept (Percent) As Of cha:ProportionOfShareAppreciationRightsToTotalRemuneration
1850 Share appreciation right units to eligible employees, number of units approved for granting Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
1851 Share appreciation right units to eligible employees, exercise price Concept (Share) For Period cha:ExercisePriceOtherEquityInstrumentsInSharebasedPaymentArrangement
1852 Share appreciation right units to eligible employees, maximum percentage exercisable Concept (Percent) As Of cha:MaximumPercentageOfStockAppreciationRightsExercisable
1853 Share appreciation rights, contractual life Concept (xbrli:durationItemType) For Period cha:ContractualLifeInShareBasedPaymentArrangement
1854 Number of share appreciation right units exercised Concept (Decimal) For Period cha:NumberOfOtherEquityInstrumentsExercisedInSharebasedPaymentArrangement
1855 Compensation expense in respect of share appreciation rights Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1856 Liability arising from share appreciation rights Concept (Monetary) As Of Credit ifrs-full:LiabilitiesFromSharebasedPaymentTransactions2011
1857 1179 - Disclosure - Principal Subsidiaries - Details of Subsidiaries which Principally Affected Results, Assets and Liabilities of the Group (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosurePrincipalSubsidiariesDetailsOfSubsidiariesWhichPrincipallyAffectedResultsAssetsAndLiabilitiesOfTheGroup
1858 Disclosure of subsidiaries [Table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
1859 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1860 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1861 China Telecom System Integration Co., Limited [member] Member cha:ChinaTelecomSystemIntegrationCoLimitedMember
1862 China Telecom Global Limited [member] Member cha:ChinaTelecomGlobalLimitedMember
1863 China Telecom (Americas) Corporation [member] Member cha:ChinaTelecomAmericasCorporationMember
1864 China Telecom Best Tone Information Service Co., Limited [member] Member cha:ChinaTelecomBestToneInformationServiceCoLimitedMember
1865 China Telecom (Macau) Company Limited [member] Member cha:ChinaTelecomMacauCompanyLimitedMember
1866 Tianyi Telecom Terminals Company Limited [member] Member cha:TianyiTelecomTerminalsCompanyLimitedMember
1867 China Telecom (Singapore) Pte. Limited [member] Member cha:ChinaTelecomSingaporePteLimitedMember
1868 E-surfing Pay Co., Ltd [member] Member cha:ESurfingPayCoLtdMember
1869 Shenzhen Shekou Telecommunications Company Limited [member] Member cha:ShenzhenShekouTelecommunicationsCompanyLimitedMember
1870 China Telecom (Australia) Pty Ltd [member] Member cha:ChinaTelecomAustraliaPtyLtdMember
1871 China Telecom Korea Co., Ltd [member] Member cha:ChinaTelecomKoreaCoLtdMember
1872 China Telecom (Malaysia) SDN BHD [member] Member cha:ChinaTelecomMalaysiaSDNBHDMember
1873 China Telecom Information Technology (Vietnam) Co., Ltd [member] Member cha:ChinaTelecomInformationTechnologyVietnamCoLtdMember
1874 iMUSIC Culture & Technology Co., Ltd. [member] Member cha:IMUSICCultureAndTechnologyCoLtdMember
1875 China Telecom (Europe) Limited [member] Member cha:ChinaTelecomEuropeLimitedMember
1876 Zhejiang Yixin Technology Co., Ltd. [member] Member cha:ZhejiangYixinTechnologyCoLtdMember
1877 Tianyi Capital Holding Co., Ltd. [member] Member cha:TianyiCapitalHoldingCoLtdMember
1878 China Telecom Leasing Corporation Limited [member] Member cha:ChinaTelecomLeasingCorporationLimitedMember
1879 Disclosure of subsidiaries [line Items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1880 Name of company Concept (Text/String) For Period ifrs-full:NameOfSubsidiary
1881 Type of legal entity Concept (Text/String) For Period ifrs-full:LegalFormOfEntity
1882 Date of incorporation Concept (Date) For Period cha:DateOfIncorporationOfSubsidiary
1883 Place of incorporation and operation Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
1884 Principal activities Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
1885 Registered/issued capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1886 1180 - Disclosure - Principal Subsidiaries - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosurePrincipalSubsidiariesAdditionalInformation
1887 Disclosure of subsidiaries [Table] Table

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*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
1888 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1889 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1890 Shenzhen Shekou Telecommunications Company Limited [member] Member cha:ShenzhenShekouTelecommunicationsCompanyLimitedMember
1891 Zhejiang Yixin Technology Co., Ltd. [member] Member cha:ZhejiangYixinTechnologyCoLtdMember
1892 E-surfing Pay Co., Ltd [member] Member cha:ESurfingPayCoLtdMember
1893 Disclosure of subsidiaries [line Items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1894 Percentage owned by the company Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
1895 1181 - Disclosure - Accounting Estimates and Judgments - Additional Information (Detail) Network

*

*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureAccountingEstimatesAndJudgmentsAdditionalInformation
1896 Disclosure of changes in accounting estimates [table] Table

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*

 ifrs-full:DisclosureOfChangesInAccountingEstimatesTable
1897 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1898 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1899 China Tower [member] Member cha:ChinaTowerCorporationLimitedMember
1900 Disclosure of changes in accounting estimates [Line Items] LineItems ifrs-full:DisclosureOfChangesInAccountingEstimatesLineItems
1901 Provision for impairment loss for long-lived assets Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1902 Current lease term Concept (xbrli:durationItemType) For Period cha:OperatingLeaseTerm
1903 1182 - Disclosure - Possible Impact of Amendments to Standards , New Standards and Interpretations Issued but Not Yet Effective for the Annual Accounting Period Ended December 31, 2018 - Additional Information (Detail) Network

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 http://www.chinatelecom-h.com/taxonomy/role/DisclosurePossibleImpactOfAmendmentsToStandardsNewStandardsAndInterpretationsIssuedButNotYetEffectiveForTheAnnualAccountingPeriodEndedDecember312018AdditionalInformation
1904 Implied Table Table

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*

 implied:Table
1905 Disclosure of expected impact of initial application of new standards or interpretations [abstract] Abstract ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsAbstract
1906 Future minimum lease payments under non-cancellable operating leases Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1907 1183 - Disclosure - Event After the Reporting Period - Additional Information (Detail) Network

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*

 http://www.chinatelecom-h.com/taxonomy/role/DisclosureEventAfterTheReportingPeriodAdditionalInformation
1908 Disclosure of Events After Reporting Period [table] Table

*

*

 cha:DisclosureOfEventsAfterReportingPeriodTable
1909 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1910 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1911 Major business combination [member] Member ifrs-full:MajorBusinessCombinationMember
1912 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
1913 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
1914 China Telecommunications Corporation [member] Member cha:ChinaTelecommunicationsCorporationMember
1915 China Communications Services Corporation Limited [member] Member cha:ChinaCommunicationsServicesCorporationLimitedMember
1916 China Telecom Group Finance Co Ltd [member] Member cha:ChinaTelecomGroupFinanceCoLtdMember
1917 Disclosure of Events After Reporting Period [line items] LineItems cha:DisclosureOfEventsAfterReportingPeriodLineItems
1918 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1919 Percentage of equity interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1920 Percentage owned by the company Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary

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*