SUNCOR ENERGY INC (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00090 - Document - Document and Entity Information Network

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3 Document and Entity Information [Abstract] Abstract su:DocumentAndEntityInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
8 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
9 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
10 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
11 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
12 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
13 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
14 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
15 00100 - Statement - Consolidated Statements of Comprehensive Income Network

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17 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
18 Revenues and Other Income Abstract su:RevenuesAndOtherIncomeAbstract
19 Operating revenues, net of royalties Concept (Monetary) For Period Credit su:OperatingRevenuesNetOfRoyalties
20 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
21 Total revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
22 Expenses Abstract ifrs-full:ExpenseByNatureAbstract
23 Purchases of crude oil and products Concept (Monetary) For Period Debit ifrs-full:CostOfPurchasedEnergySold
24 Operating, selling and general Concept (Monetary) For Period Debit su:OperatingSellingAndGeneralAdministrativeExpense
25 Transportation Concept (Monetary) For Period Debit ifrs-full:TransportationExpense
26 Depreciation, depletion, amortization and impairment Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
27 Exploration Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
28 (Gain) loss on asset exchange and disposal of assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
29 Financing expenses (income) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
30 Total expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
31 Earnings before Income Taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
32 Income Tax Expense Abstract su:IncomeTaxesAbstract
33 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
34 Deferred income tax expense (recovery) Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
35 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
36 Net Earnings (Loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
37 Other Comprehensive Income (Loss) Abstract ifrs-full:OtherComprehensiveIncomeAbstract
38 Items That May be Subsequently Reclassified to Earnings: Abstract su:ComponentsOfOtherComprehensiveIncomeThatMayBeSubsequentlyReclassifiedToProfitOrLossNetOfTaxAbstract
39 Foreign currency translation adjustment Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax
40 Items That Will Not be Reclassified to Earnings: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
41 Actuarial gain on employee retirement benefit plans, net of income taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
42 Other Comprehensive Income (Loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
43 Total Comprehensive Income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
44 Per Common Share (dollars) Abstract ifrs-full:BasicAndDilutedEarningsPerShareAbstract
45 Net earnings - basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
46 Net earnings - diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
47 Cash dividends Concept (Share) For Period ifrs-full:DividendsPaidOrdinarySharesPerShare
48 00200 - Statement - Consolidated Balance Sheets Network

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49 Implied Table Table

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50 CONSOLIDATED BALANCE SHEETS Abstract ifrs-full:StatementOfFinancialPositionAbstract
51 Assets. Abstract ifrs-full:AssetsAbstract
52 Current assets. Abstract ifrs-full:CurrentAssetsAbstract
53 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
54 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
55 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
56 Income taxes receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTaxAssetsCurrent
57 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
58 Non current assets, goodwill and intangible assets Abstract su:NonCurrentAssetsGoodwillAndIntangibleAssetsAbstract
59 Property, plant and equipment, net Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
60 Exploration and evaluation Concept (Monetary) As Of Debit ifrs-full:IntangibleExplorationAndEvaluationAssets
61 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
62 Goodwill and other intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
63 Deferred income taxes Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
64 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
65 Liabilities and Shareholders' Equity Abstract ifrs-full:EquityAndLiabilitiesAbstract
66 Current liabilities. Abstract ifrs-full:CurrentLiabilitiesAbstract
67 Short-term debt Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
68 Current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
69 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit su:CurrentAccountsPayableAndAccruedLiabilities
70 Current portion of provisions Concept (Monetary) As Of Credit ifrs-full:CurrentProvisions
71 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
72 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
73 Non current liabilities and equity Concept (Text/String) For Period su:NonCurrentLiabilitiesAndEquityAbstract
74 Long-term Debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
75 Other long-term liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
76 Provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
77 Deferred income taxes Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
78 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
79 Total liabilities and shareholders' equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
80 00300 - Statement - Consolidated Statements of Cash Flows Network

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81 Implied Table Table

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82 CONSOLIDATED STATEMENTS OF CASH FLOWS Abstract ifrs-full:StatementOfCashFlowsAbstract
83 Operating Activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
84 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
85 Adjustments for: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
86 Depreciation, depletion, amortization and impairment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpenseAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
87 Deferred income taxes Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxExpense
88 Accretion Concept (Monetary) For Period Debit su:AccretionCharges
89 Unrealized foreign exchange loss (gain) on U.S. dollar denominated debt Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
90 Change in fair value of financial instruments and trading inventory Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFairValueGainsLosses
91 Gain on disposal of assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
92 Loss on extinguishment of long-term debt Concept (Monetary) For Period Credit su:GainLossOnExtinguishmentOfLongTermDebtIncludingRealizedGainOnForeignCurrencyHedges
93 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
94 Exploration Concept (Monetary) For Period Debit su:AdjustmentsForExplorationExpenses
95 Settlement of decommissioning and restoration liabilities Concept (Monetary) For Period Debit su:AdjustmentsForExpensesTowardsSettlementOfDecommissioningAndRestorationLiabilities
96 Other Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsToReconcileProfitLoss
97 Decrease (increase) in non-cash working capital Concept (Monetary) For Period Debit su:IncreaseDecreaseInNonCashWorkingCapitalFromOperatingActivities
98 Cash flow provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
99 Investing Activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
100 Capital and exploration expenditures Concept (Monetary) For Period Debit su:CashFlowsProvidedByUsedInExplorationAndDevelopmentActivities
101 Acquisitions Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
102 Proceeds from disposal of assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfOilAndGasAssets
103 Other investments Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
104 Decrease in non-cash working capital Concept (Monetary) For Period Debit su:IncreaseDecreaseInNonCashWorkingCapitalFromInvestingActivities
105 Cash flow used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
106 Financing Activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
107 Net increase in short-term debt Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowings
108 Net decrease in long-term debt Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
109 Issuance of long-term debt Concept (Monetary) For Period Debit ifrs-full:ProceedsFromNoncurrentBorrowings
110 Issuance of common shares under share option plans Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
111 Purchase of common shares Concept (Monetary) For Period Debit su:IssuancePurchaseOfCommonShares
112 (Distribution) and proceeds from sale, relating to non-controlling interest Concept (Monetary) For Period Debit su:ProceedsDistributionsFromSaleOfNonControllingInterest
113 Dividends paid on common shares Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
114 Cash flow (used in) provided by financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
115 Decrease in Cash and Cash Equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
116 Effect of foreign exchange on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
117 Cash and cash equivalents at beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
118 Cash and Cash Equivalents at End of Year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
119 Supplementary Cash Flow Information Abstract su:SupplementaryInformationCashFlowAbstract
120 Interest paid Concept (Monetary) For Period Credit su:InterestPaidClassifiedAsSupplementaryCashFlowInformation
121 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefund
122 00400 - Statement - Consolidated Statements Of Changes In Equity Network

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123 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
124 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
125 Equity [member] Member ifrs-full:EquityMember
126 Issued share capital Member ifrs-full:IssuedCapitalMember
127 Share capital Member ifrs-full:EquityAttributableToOwnersOfParentMember
128 Contributed surplus Member ifrs-full:AdditionalPaidinCapitalMember
129 Accumulated other comprehensive income Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
130 Retained earnings Member ifrs-full:RetainedEarningsMember
131 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
132 Changes in equity Abstract ifrs-full:ChangesInEquityAbstract
133 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
134 Beginning balance (in share) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
135 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
136 Foreign currency translation adjustment Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax
137 Actuarial gain on employee retirement benefit plans, net of income taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
138 Total comprehensive (loss) income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
139 Issued under share option plans Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
140 Issued under share option plans (in shares) Concept (Shares) For Period su:SharesIssuedUnderShareOptionPlans
141 Purchase of common shares for cancellation Concept (Monetary) For Period Credit ifrs-full:CancellationOfTreasuryShares
142 Purchase of common shares for cancellation (in shares) Concept (Shares) For Period su:PurchaseOfCommonSharesForCancellationInShares
143 Change in liability for share purchase commitment Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTreasuryShareTransactions
144 Share-based compensation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
145 Dividends paid on common shares Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
146 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
147 Ending balance (in share) Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
148 00405 - Statement - Consolidated Statements Of Changes In Equity (Parenthetical) Network

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149 Implied Table Table

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150 Statement of changes in equity [abstract] Abstract ifrs-full:StatementOfChangesInEquityAbstract
151 Taxes on actuarial (loss) gain on employee retirement benefit plans Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
152 10101 - Disclosure - Reporting Entity And Description Of The Business Network

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153 Implied Table Table

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154 REPORTING ENTITY AND DESCRIPTION OF THE BUSINESS Abstract su:ReportingEntityAndDescriptionOfBusinessAbstract
155 REPORTING ENTITY AND DESCRIPTION OF THE BUSINESS Concept (Text Block (HTML)) For Period su:ReportingEntityAndDescriptionOfBusinessTextBlock
156 10201 - Disclosure - Basis Of Preparation Network

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157 Implied Table Table

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158 BASIS OF PREPARATION Abstract su:BasisOfPreparationAbstract
159 BASIS OF PREPARATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
160 10301 - Disclosure - Summary Of Significant Accounting Policies Network

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161 Implied Table Table

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162 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Abstract su:SummaryOfSignificantAccountingPoliciesAbstract
163 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
164 10401 - Disclosure - Significant Accounting Estimates And Judgments Network

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165 Implied Table Table

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166 SIGNIFICANT ACCOUNTING ESTIMATES AND JUDGMENTS Abstract ifrs-full:DisclosureOfChangesInAccountingEstimatesAbstract
167 SIGNIFICANT ACCOUNTING ESTIMATES AND JUDGMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
168 10501 - Disclosure - New IRFS Standards Network

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169 Implied Table Table

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170 NEW IFRS STANDARDS Abstract su:RecentlyAnnouncedAccountingPronouncementsAbstract
171 NEW IFRS STANDARDS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
172 10601 - Disclosure - Segmented Information Network

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173 Implied Table Table

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174 SEGMENTED INFORMATION Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
175 SEGMENTED INFORMATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
176 10701 - Disclosure - Other Income Network

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177 Implied Table Table

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178 OTHER INCOME. Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
179 OTHER INCOME Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExplanatory
180 10801 - Disclosure - Operating, Selling and General Network

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181 Implied Table Table

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182 OPERATING, SELLING AND GENERAL Abstract su:OperatingSellingAndGeneralAbstract
183 OPERATING, SELLING AND GENERAL Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralAndAdministrativeExpenseExplanatory
184 10901 - Disclosure - Financing (Income) Expenses Network

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185 Implied Table Table

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186 FINANCING (INCOME) EXPENSES Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
187 FINANCING (INCOME) EXPENSES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingCostsExplanatory
188 11001 - Disclosure - Income Taxes Network

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189 Implied Table Table

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190 INCOME TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
191 INCOME TAXES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
192 11101 - Disclosure - Earnings Per Common Share Network

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193 Implied Table Table

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194 Earnings Per Common Share Abstract ifrs-full:EarningsPerShareAbstract
195 Earnings Per Common Share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
196 11201 - Disclosure - Cash And Cash Equivalents Network

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197 Implied Table Table

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198 Cash and cash equivalents Abstract ifrs-full:CashAndCashEquivalentsAbstract
199 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
200 11301 - Disclosure - Supplemental Cash Flow Information Network

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201 Implied Table Table

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202 Supplemental Cash Flow Information Abstract su:SupplementalInformationRelatedToCashFlowAbstract
203 Supplemental Cash Flow Information Disclosure Concept (Text Block (HTML)) For Period su:SupplementalCashFlowInformationDisclosureTextBlock
204 11401 - Disclosure - Inventories Network

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205 Implied Table Table

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206 Inventories Abstract ifrs-full:ClassesOfInventoriesAbstract
207 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
208 11501 - Disclosure - Property Plant And Equipment Network

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209 Implied Table Table

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210 PROPERTY, PLANT AND EQUIPMENT. Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
211 PROPERTY, PLANT AND EQUIPMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
212 11601 - Disclosure - Exploration And Evaluation Assets Network

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213 Implied Table Table

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214 EXPLORATION AND EVALUATION ASSETS Abstract su:DisclosureOfExplorationAndEvaluationAssetsAbstract
215 EXPLORATION AND EVALUATION ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExplorationAndEvaluationAssetsExplanatory
216 11701 - Disclosure - Other Assets Network

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217 Implied Table Table

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218 OTHER ASSETS. Abstract su:OtherAssetsDisclosureAbstract
219 OTHER ASSETS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
220 11801 - Disclosure - Goodwill And Other Intangible Assets Network

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221 Implied Table Table

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224 11901 - Disclosure - Debt And Credit Facilities Network

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225 Implied Table Table

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226 FINANCING (INCOME) EXPENSES Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
227 Debt and Credit Facilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBorrowingsExplanatory
228 12001 - Disclosure - Other long-term liabilities Network

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229 Implied Table Table

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231 OTHER LONG TERM LIABILITIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory
232 12101 - Disclosure - Pension and other PostRetirement Benefits Network

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233 Implied Table Table

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235 PENSIONS AND OTHER POST RETIREMENT BENEFITS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEmployeeBenefitsExplanatory
236 12201 - Disclosure - Provisions Network

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240 12301 - Disclosure - Share Capital Network

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241 Implied Table Table

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244 12401 - Disclosure - Share-Based Compensation Network

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245 Implied Table Table

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247 SHARE BASED COMPENSATION Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
248 12501 - Disclosure - Financial Instruments And Risk Management Network

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249 Implied Table Table

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251 FINANCIAL INSTRUMENTS AND RISK MANAGEMENT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
252 12601 - Disclosure - Capital Structure Financial Policies Network

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253 Implied Table Table

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254 CAPITAL STRUCTURE FINANCIAL POLICIES Abstract ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
255 CAPITAL STRUCTURE FINANCIAL POLICIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory
256 12701 - Disclosure - Joint Arrangements Network

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257 Implied Table Table

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259 JOINT ARRANGEMENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInJointArrangementsExplanatory
260 12801 - Disclosure - Subsidiaries Network

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263 SUBSIDIARIES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
264 12901 - Disclosure - Related Party Disclosures Network

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268 13001 - Disclosure - Commitments, Contingencies and Guarantees Network

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269 Implied Table Table

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271 COMMITMENTS, CONTINGENCIES AND GUARANTEES Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory
272 13101 - Disclosure - Acquisition Of Additional Ownership Interest In The Syncrude Project Network

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273 Disclosure of detailed information about business combination [table] Table

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274 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
275 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
276 Syncrude Member su:SyncrudeMember
277 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
278 ACQUISITION OF ADDITIONAL OWNERSHIP INTEREST IN THE SYNCRUDE PROJECT Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBusinessCombinationsExplanatory
279 13201 - Disclosure - Fort Hills Network

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280 Implied Table Table

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281 FORT HILLS Abstract su:FortHillsProjectAbstract
282 FORT HILLS Concept (Text Block (HTML)) For Period su:FortHillsProjectTextBlock
283 13301 - Disclosure - Sale Of Lubricants Business Network

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284 Implied Table Table

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285 SALE OF LUBRICANTS BUSINESS Abstract su:SaleOfLubricantBusinessAbstract
286 SALE OF LUBRICANTS BUSINESS Concept (Text Block (HTML)) For Period su:SaleOfLubricantsBusinessTextBlock
287 13401 - Disclosure - Sale Of Cedar Point Network

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288 Implied Table Table

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289 SALE OF CEDAR POINT Abstract su:SaleOfCedarPointAbstract
290 SALE OF CEDAR POINT Concept (Text Block (HTML)) For Period su:SaleOfCedarPointTextBlock
291 13501 - Disclosure - East Tank Farm Development Partnership (ETFD) Network

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292 Implied Table Table

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294 EAST TANK FARM DEVELOPMENT PARTNERSHIP Concept (Text Block (HTML)) For Period su:DisclosureOfSaleOfSubsidiariesTextBlock
295 13601 - Disclosure - Other Transactions Network

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296 Implied Table Table

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297 OTHER TRANSACTIONS Abstract su:DisclosureOfOtherTransactionsAbstract
298 OTHER TRANSACTIONS Concept (Text Block (HTML)) For Period su:DisclosureOfOtherTransactionsTextBlock
299 13701 - Disclosure - Subsequent Events Network

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300 Implied Table Table

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301 SUBSEQUENT EVENTS Abstract ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract
302 SUBSEQUENT EVENTS Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
303 20302 - Disclosure - Summary Of Significant Accounting Policies (Policies) Network

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304 Implied Table Table

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305 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Abstract su:SummaryOfSignificantAccountingPoliciesAbstract
306 Principles of Consolidation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSubsidiariesExplanatory
307 Joint Arrangements Concept (Text Block (HTML)) For Period su:JointArrangementsPolicyTextBlock
308 Foreign Currency Translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
309 Revenues Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
310 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
311 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
312 Assets Held for Sale Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleExplanatory
313 Exploration and Evaluation Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures
314 Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
315 Depreciation, Depletion and Amortization Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDepreciationExpenseExplanatory
316 Goodwill and Other Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsAndGoodwillExplanatory
317 Impairment of Assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
318 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
319 Income Taxes Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
320 Pensions and Other Post-Retirement Benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
321 Share-Based Compensation Plans Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
322 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
323 Hedging Activities Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForHedgingExplanatory
324 Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
325 Dividend Distributions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDividendsExplanatory
326 Earnings per Share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
327 Emissions Obligations Concept (Text Block (HTML)) For Period su:EmissionsObligationsPolicyTextBlock
328 30303 - Disclosure - Summary Of Significant Accounting Policies (Tables) Network

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329 Implied Table Table

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330 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Abstract su:SummaryOfSignificantAccountingPoliciesAbstract
331 Property, Plant and Equipment Useful Life Concept (Text Block (HTML)) For Period su:PropertyPlantAndEquipmentUsefulLifeTableTextBlock
332 30503 - Disclosure - New IFRS Standards (Tables) Network

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333 Implied Table Table

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334 NEW IFRS STANDARDS Abstract su:RecentlyAnnouncedAccountingPronouncementsAbstract
335 Adjustments to Consolidated Statements of Comprehensive Income Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfInitialApplicationOfStandardsOrInterpretations
336 30603 - Disclosure - Segmented Information (Tables) Network

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337 Implied Table Table

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338 SEGMENTED INFORMATION Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
339 Segmented Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
340 Disaggregation of revenue from contracts with customers Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory
341 Geographical breakdown of operating revenue and non-current assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
342 30703 - Disclosure - Other Income (Tables) Network

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343 Implied Table Table

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344 OTHER INCOME. Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
345 Schedule of other income Concept (Text Block (HTML)) For Period su:OtherIncomeExpenseTextBlock
346 30803 - Disclosure - Operating, Selling and General (Tables) Network

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347 Implied Table Table

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348 OPERATING, SELLING AND GENERAL Abstract su:OperatingSellingAndGeneralAbstract
349 Schedule of operating, selling and general Concept (Text Block (HTML)) For Period su:OperatingSellingAndGeneralTableTextBlock
350 30903 - Disclosure - Financing (Income) Expenses (Tables) Network

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351 Implied Table Table

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352 FINANCING (INCOME) EXPENSES Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
353 Financing expenses disclosure Concept (Text Block (HTML)) For Period su:DisclosureOfFinancingExpensesTableTextBlock
354 31003 - Disclosure - Income Taxes (Tables) Network

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355 Implied Table Table

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356 INCOME TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
357 Income Tax (Recovery) Expense Concept (Text Block (HTML)) For Period su:ScheduleOfComponentsOfIncomeTaxExpenseTableTextBlock
358 Reconciliation of Effective Tax Rate Concept (Text Block (HTML)) For Period su:ScheduleOfReconciliationEffectiveIncomeTaxRateTableTextBlock
359 Deferred Income Tax Balances Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
360 Change in Deferred Income Tax Balances Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
361 Deferred Tax in Shareholders' Equity Concept (Text Block (HTML)) For Period su:ScheduleOfDeferredTaxInShareholdersEquityTextBlock
362 31103 - Disclosure - Earnings Per Common Share (Tables) Network

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363 Implied Table Table

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364 Earnings Per Common Share Abstract ifrs-full:EarningsPerShareAbstract
365 Earnings Per Common Share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
366 31203 - Disclosure - Cash And Cash Equivalents (Tables) Network

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367 Implied Table Table

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368 Cash and cash equivalents Abstract ifrs-full:CashAndCashEquivalentsAbstract
369 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period su:CashAndCashEquivalentsDisclosureTableTextBlock
370 31303 - Disclosure - Supplemental Cash Flow Information (Tables) Network

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371 Implied Table Table

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372 Supplemental Cash Flow Information Abstract su:SupplementalInformationRelatedToCashFlowAbstract
373 Schedule of supplemental cash flow information Concept (Text Block (HTML)) For Period su:SupplementalCashFlowInformationTableTextBlock
374 31403 - Disclosure - Inventories (Tables) Network

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375 Implied Table Table

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376 Inventories Abstract ifrs-full:ClassesOfInventoriesAbstract
377 Inventories Concept (Text Block (HTML)) For Period su:IfrsScheduleOfInventoryCurrentTableTextBlock
378 31503 - Disclosure - Property Plant And Equipment (Tables) Network

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379 Implied Table Table

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380 PROPERTY, PLANT AND EQUIPMENT. Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
381 Disclosure of changes in property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
382 31603 - Disclosure - Exploration And Evaluation Assets (Tables) Network

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383 Implied Table Table

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384 EXPLORATION AND EVALUATION ASSETS Abstract su:DisclosureOfExplorationAndEvaluationAssetsAbstract
385 Exploration and Evaluation Assets rollforward Concept (Text Block (HTML)) For Period su:RollForwardDisclosureOfExplorationAndEvaluationAssetsTableTextBlock
386 31703 - Disclosure - Other Assets (Tables) Network

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387 Implied Table Table

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388 OTHER ASSETS. Abstract su:OtherAssetsDisclosureAbstract
389 Other Assets Concept (Text Block (HTML)) For Period su:OtherAssetsDisclosureTableTextBlock
390 31803 - Disclosure - Goodwill And Other Intangible Assets (Tables) Network

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*

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391 Implied Table Table

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392 GOODWILL AND OTHER INTANGIBLE ASSETS Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
393 Segment breakdown of Goodwill and Other Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillExplanatory
394 31903 - Disclosure - Debt And Credit Facilities (Tables) Network

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395 Implied Table Table

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396 FINANCING (INCOME) EXPENSES Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
397 Debt and credit facilities are comprised of: Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
398 Scheduled principal repayments for finance leases, short term debt and long term debt Concept (Text Block (HTML)) For Period su:ScheduleOfScheduledDebtRepaymentsTableTextBlock
399 Summary of available and unutilized credit facilities Concept (Text Block (HTML)) For Period su:ScheduleOfAvailableAndUnutilizedCreditFacilitiesTableTextBlock
400 32003 - Disclosure - Other long-term liabilities (Tables) Network

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401 Implied Table Table

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402 OTHER LONG-TERM LIABILITIES. Abstract su:DisclosureOfOtherNonCurrentLiabilitiesAbstract
403 Schedule of other long-term liabilities Concept (Text Block (HTML)) For Period su:DisclosureOfOtherNoncurrentLiabilitiesTableTextBlock
404 32103 - Disclosure - Pension and other PostRetirement Benefits (Tables) Network

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405 Implied Table Table

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406 PENSIONS AND OTHER POST RETIREMENT BENEFITS Abstract ifrs-full:DisclosureOfDefinedBenefitPlansAbstract
407 Schedule of defined benefit obligations and funded status Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
408 Schedule of defined benefit plan expenses Concept (Text Block (HTML)) For Period su:DisclosureOfDefinedBenefitPlanExpensesTableTextBlock
409 Schedule of weighted average actuarial assumptions Concept (Text Block (HTML)) For Period su:DisclosureOfWeightedAverageActuarialAssumptionsTableTextBlock
410 Schedule of changes in assumed assumptions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory
411 Schedule of weighted average pension plan asset allocations based on market value Concept (Text Block (HTML)) For Period su:DisclosureOfWeightedAveragePensionPlanAssetAllocationsBasedOnMarketValueTableTextBlock
412 32203 - Disclosure - Provisions (Tables) Network

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413 Implied Table Table

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414 Provisions Abstract ifrs-full:ProvisionsAbstract
415 Provisions disclosure Concept (Text Block (HTML)) For Period su:ProvisionsDisclosureTableTextBlock
416 Impact of changes in discount rate on decommissioning and restoration liabilities. Concept (Text Block (HTML)) For Period su:DiscountRateSensitivitiesDisclosureTableTextBlock
417 32303 - Disclosure - Share Capital (Tables) Network

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418 Implied Table Table

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419 SHARE CAPITAL. Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
420 Schedule of share repurchase activities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRepurchaseAndReverseRepurchaseAgreementsExplanatory
421 Schedule of liability for share repurchases Concept (Text Block (HTML)) For Period su:DisclosureOfLiabilityForShareRepurchasesTableTextBlock
422 32403 - Disclosure - Share-Based Compensation (Tables) Network

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423 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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427 Share based compensation LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
428 Share-Based compensation expense Concept (Text Block (HTML)) For Period ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss
429 Summary of liability recognized for share-based compensation Concept (Text Block (HTML)) For Period ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnFinancialPositions
430 Weighted average fair value of options granted during the period and the weighted average assumptions used in their determination Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory
431 Summary of stock option plans Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory
432 Exercise price ranges and weighted average remaining contractual lives Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
433 Summary of common shares available for granting future options Concept (Text Block (HTML)) For Period su:DisclosureOfCommonSharesAvailableForGrantingOfFutureOptionsTableTextBlock
434 Summary of share units and stock appreciation rights Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
435 32503 - Disclosure - Financial Instruments And Risk Management (Tables) Network

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436 Implied Table Table

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438 Summary of changes in the fair value of non designated Energy Trading and Risk Management derivatives Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
439 Summary of derivative financial instrument assets and liabilities and assets available for sale measured at fair value Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
440 Summary of offsetting financial assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOffsettingOfFinancialAssetsExplanatory
441 Summary of offsetting financial liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOffsettingOfFinancialLiabilitiesExplanatory
442 Timing of cash outflows related to trade and other payables and debt Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
443 32603 - Disclosure - Capital Structure Financial Policies - (Tables) Network

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444 Implied Table Table

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445 CAPITAL STRUCTURE FINANCIAL POLICIES Abstract ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
446 Schedule of components of ratios Concept (Text Block (HTML)) For Period su:DisclosureOfComponentsOfRatioTableTextBlock
447 32703 - Disclosure - Joint Arrangements (Tables) Network

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448 Implied Table Table

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449 JOINT ARRANGEMENTS Abstract su:DisclosureOfJointArrangementsAbstract
450 Schedule of joint operations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfJointOperationsExplanatory
451 Schedule of joint ventures and associates Concept (Text Block (HTML)) For Period su:DisclosureOfJointVenturesAndAssociatesTableTextBlock
452 32803 - Disclosure - Subsidiaries - (Tables) Network

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453 Implied Table Table

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454 SUBSIDIARIES Abstract ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesAbstract
455 Schedule of material subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
456 32903 - Disclosure - Related Party Disclosures (Tables) Network

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457 Implied Table Table

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458 RELATED PARTY DISCLOSURES Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
459 Summary of significant related party transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
460 Schedule of compensation of Key Management Personnel Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
461 33003 - Disclosure - Commitments, Contingencies and Guarantees (Tables) Network

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462 Implied Table Table

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464 Schedule of commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
465 33103 - Disclosure - Acquisition Of Additional Ownership Interest In The Syncrude Project (Tables) Network

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466 Disclosure of detailed information about business combination [table] Table

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468 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
469 Syncrude Member su:SyncrudeMember
470 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
471 Schedule of purchase price allocation Concept (Text Block (HTML)) For Period su:BusinessCombinationPurchasePriceAllocationTableTextBlock
472 40301 - Disclosure - Summary Of Significant Accounting Policies (Details) Network

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

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475 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
476 Oil sands upgraders, extraction plants and mine facilities Member su:OilSandsUpgradersExtractionPlantsAndMineFacilitiesMember
477 Oil sands mine equipment Member su:OilSandsMineEquipmentMember
478 Oil sands in situ processing facilities Member su:OilSandsInSituProcessingFacilitiesMember
479 Power generation and utility plants Member su:PowerGenerationAndUtilityPlantsMember
480 Refineries and other processing plants Member su:RefineriesAndOtherProcessingPlantsMember
481 Marketing and other distribution assets Member su:MarketingAndOtherDistributionAssetsMember
482 Inspection, overhaul and turnaround activities Member su:InspectionOverhaulAndTurnaroundActivitiesMember
483 Range [axis] Axis ifrs-full:RangeAxis
484 Ranges [member] Member ifrs-full:RangesMember
485 Minimum Member ifrs-full:BottomOfRangeMember
486 Maximum Member ifrs-full:TopOfRangeMember
487 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
488 Property, Plant and Equipment, Useful Life Concept (xbrli:durationItemType) For Period su:UsefulLivesPropertyPlantAndEquipment
489 40302 - Disclosure - Summary Of Significant Accounting Policies - Goodwill and Other Intangible Assets (Details) Network

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490 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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491 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
492 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
493 Customer Lists Member ifrs-full:CustomerrelatedIntangibleAssetsMember
494 Range [axis] Axis ifrs-full:RangeAxis
495 Ranges [member] Member ifrs-full:RangesMember
496 Minimum Member ifrs-full:BottomOfRangeMember
497 Maximum Member ifrs-full:TopOfRangeMember
498 Goodwill and Other Intangible Assets LineItems ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
499 Estimated useful lives of other intangible assets and goodwill Concept (xbrli:durationItemType) For Period su:UsefulLivesOfOtherIntangibleAssetsAndGoodwill
500 40501 - Disclosure - New IFRS Standards (Details) Network

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

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 ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable
502 Initially applied IFRSs [axis] Axis ifrs-full:InitiallyAppliedIFRSsAxis
503 Initially applied IFRSs [member] Member ifrs-full:InitiallyAppliedIFRSsMember
504 Increase (decrease) due to application of IFRS 15 Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
505 Disclosure of initial application of standards or interpretations [line items] LineItems ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems
506 Operating revenues, net of royalties Concept (Monetary) For Period Credit su:OperatingRevenuesNetOfRoyalties
507 Operating, selling and general Concept (Monetary) For Period Debit su:OperatingSellingAndGeneralAdministrativeExpense
508 Transportation Concept (Monetary) For Period Debit ifrs-full:TransportationExpense
509 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
510 Total comprehensive income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
511 ROU assets Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
512 Lease liabilities Concept (Monetary) As Of Credit ifrs-full:LeaseLiabilities
513 40601 - Disclosure - Segmented Information (Details) Network

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514 Disclosure of operating segments [table] Table

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515 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
516 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
517 Canbriam Energy, Inc. Member su:CanbriamEnergyIncMember
518 Segments [axis] Axis ifrs-full:SegmentsAxis
519 Segments [member] Member ifrs-full:SegmentsMember
520 Oil Sands Member su:OilSandsSegmentMember
521 Exploration and Production Member su:ExplorationAndProductionSegmentMember
522 Refining and Marketing Member su:RefiningAndMarketingSegmentMember
523 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
524 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
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526 Elimination of intersegment amounts Member ifrs-full:EliminationOfIntersegmentAmountsMember
527 Corporate Energy Trading And Eliminations Member su:CorporateEnergyTradingAndEliminationsMember
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529 Interest purchased (as a percent) Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
530 Revenues and Other Income Abstract su:RevenuesAndOtherIncomeAbstract
531 Gross revenues Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfOilAndGasProducts
532 Less : Royalties Concept (Monetary) For Period Debit ifrs-full:RoyaltyExpense
533 Operating revenues, net of royalties Concept (Monetary) For Period Credit su:OperatingRevenuesNetOfRoyalties
534 Other income (loss) Concept (Monetary) For Period Credit su:OtherIncomeLoss
535 Total revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
536 Expenses Abstract ifrs-full:ExpenseByNatureAbstract
537 Purchases of crude oil and products Concept (Monetary) For Period Debit ifrs-full:CostOfPurchasedEnergySold
538 Operating, selling and general Concept (Monetary) For Period Debit su:OperatingSellingAndGeneralAdministrativeExpense
539 Transportation Concept (Monetary) For Period Debit ifrs-full:TransportationExpense
540 Depreciation, depletion, amortization and impairment Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
541 Exploration Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
542 (Gain) loss on asset exchange and disposal of assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
543 Financing expenses (income) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
544 Total expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
545 Earnings before Income Taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
546 Income Tax Expense (Recovery) Abstract su:IncomeTaxesAbstract
547 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods
548 Deferred income tax expense (recovery) Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
549 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
550 Net Earnings (Loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
551 Capital and exploration expenditures Concept (Monetary) For Period Debit su:CashFlowsProvidedByUsedInExplorationAndDevelopmentActivities
552 40602 - Disclosure - Segmented Information - Disaggregation of Revenue (Details) Network

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553 Disclosure of disaggregation of revenue from contracts with customers [table] Table

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 ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable
554 Segments [axis] Axis ifrs-full:SegmentsAxis
555 Segments [member] Member ifrs-full:SegmentsMember
556 Oil Sands Member su:OilSandsSegmentMember
557 Exploration and Production Member su:ExplorationAndProductionSegmentMember
558 Refining and Marketing Member su:RefiningAndMarketingSegmentMember
559 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
560 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
561 Operating segments Member ifrs-full:OperatingSegmentsMember
562 Elimination of intersegment amounts Member ifrs-full:EliminationOfIntersegmentAmountsMember
563 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
564 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
565 North America Member srt:NorthAmericaMember
566 International Member su:OtherForeignCountriesOtherThanThoseInNorthAmericaMember
567 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
568 Products and services [member] Member ifrs-full:ProductsAndServicesMember
569 SCO And Diesel Member su:ScoAndDieselMember
570 Bitumen Member su:BitumenMember
571 Crude Oil And Natural Gas Liquids Member su:CrudeOilAndNaturalGasLiquidsMember
572 Natural Gas Member su:NaturalGasMember
573 Gasoline Member su:GasolineMember
574 Distillate Member su:DistillateMember
575 Other Product and Services Member su:OtherProductAndServicesMember
576 Disclosure of disaggregation of revenue from contracts with customers [line items] LineItems ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems
577 Gross revenues Concept (Monetary) For Period Credit su:GrossRevenueLessRoyalties
578 40603 - Disclosure - Segmented Information - Geographical information (Details) Network

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579 Disclosure of geographical areas [table] Table

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 ifrs-full:DisclosureOfGeographicalAreasTable
580 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
581 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
582 Canada Member ifrs-full:CountryOfDomicileMember
583 United States Member country:US
584 Other foreign Member su:OtherForeignCountriesExcludingUnitedStatesAndCanadaMember
585 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
586 Operating revenues, net of royalties Concept (Monetary) For Period Credit su:OperatingRevenuesNetOfRoyalties
587 Non-current assets excluding deferred income tax assets Concept (Monetary) For Period Debit su:NonCurrentAssetsExceptDeferredIncomeTaxAssets
588 40701 - Disclosure - Other Income (Details) Network

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 http://www.suncor.com/role/DisclosureOtherIncomeDetails
589 Implied Table Table

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 implied:Table
590 OTHER INCOME. Abstract ifrs-full:MaterialIncomeAndExpenseAbstract
591 Unrealized gains (losses) recognized in earnings Concept (Monetary) For Period Credit su:EnergyTradingActivitiesUnrealizedGainLossRecognizedInEarnings
592 Gains (losses) on inventory valuation Concept (Monetary) For Period Credit su:EnergyTradingGainsLossesOnInventoryValuation
593 Risk management activities Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
594 Investment and interest income Concept (Monetary) For Period Credit su:InvestmentAndInterestIncome
595 Insurance proceeds Concept (Monetary) For Period Credit su:ProceedsFromInsurance
596 Change in value of pipeline commitments and other Concept (Monetary) For Period Credit su:ChangeInValueOfPipelineCommitmentsAndOther
597 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
598 40801 - Disclosure - Operating, Selling and General (Details) Network

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 http://www.suncor.com/role/DisclosureOperatingSellingAndGeneralDetails
599 Implied Table Table

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600 OPERATING, SELLING AND GENERAL Abstract su:OperatingSellingAndGeneralAbstract
601 Contract services Concept (Monetary) For Period Debit su:ContractServicesOperatingSellingAndGeneral
602 Employee costs Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
603 Materials Concept (Monetary) For Period Debit ifrs-full:RawMaterialsAndConsumablesUsed
604 Energy Concept (Monetary) For Period Debit ifrs-full:EnergyExpense
605 Equipment rentals and leases Concept (Monetary) For Period Debit ifrs-full:RentalExpense
606 Travel, marketing and other Concept (Monetary) For Period Debit su:TravelMarketingAndOther
607 Operating, selling and general Concept (Monetary) For Period Debit su:OperatingSellingAndGeneralAdministrativeExpense
608 Contract services and employee cots Concept (Monetary) For Period Debit su:ContractServicesAndEmployeeCosts
609 Contract services and employee costs in operating, selling and general Concept (Monetary) For Period Debit su:ContractServicesAndEmployeeCostsInOperatingSellingAndGeneral
610 Contract services and employee costs in property, plant and equipment Concept (Monetary) For Period Debit su:ContractServicesAndEmployeeCostsInPropertyPlantAndEquipment
611 40901 - Disclosure - Financing (Income) Expenses (Details) Network

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 http://www.suncor.com/role/DisclosureFinancingIncomeExpensesDetails
612 Implied Table Table

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 implied:Table
613 FINANCING (INCOME) EXPENSES Abstract ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsAbstract
614 Finance expenses breakdown Abstract su:FinanceExpensesBreakdownAbstract
615 Interest on debt and finance leases Concept (Monetary) For Period Debit su:InterestExpenseOnDebtAndFinanceLeases
616 Capitalized interest at 5.4% ( 2017- 5.5%) Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
617 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
618 Interest on partnership liability Concept (Monetary) For Period Debit su:InterestOnPartnershipLiability
619 Interest on pension and other postretirement benefits Concept (Monetary) For Period Debit su:InterestOnPensionAndOtherPostRetirementsBenefits
620 Accretion Concept (Monetary) For Period Debit su:AccretionCharges
621 Foreign exchange loss (gain) on U.S. dollar denominated debt Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
622 Foreign exchange and other Concept (Monetary) For Period Debit su:ForeignExchangeAndOtherExpenses
623 Loss on extinguishment of long-term debt Concept (Monetary) For Period Credit su:GainLossOnExtinguishmentOfDebt
624 Realized gain on foreign currency hedges Concept (Monetary) For Period Credit su:RealizedGainOnForeignCurrencyHedges
625 Total Financing expenses Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
626 Debt instrument interest percentage Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
627 41001 - Disclosure - Income Taxes (Details) Network

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 http://www.suncor.com/role/DisclosureIncomeTaxesDetails
628 Implied Table Table

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 implied:Table
629 INCOME TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
630 Current year Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
631 Adjustments to current income tax of prior years Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
632 Origination and reversal of temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
633 Adjustments in respect of deferred income tax of prior years Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxOfPriorPeriods
634 Changes in tax rates and legislation Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes
635 Movement in unrecognized deferred income tax assets Concept (Monetary) For Period Credit su:TaxExpenseIncomeArisingFromMovementInUnrecognizedDeferredIncomeTaxAssets
636 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
637 41002 - Disclosure - Income Taxes - Reconciliation of Effective Tax Rate (Details) Network

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 http://www.suncor.com/role/DisclosureIncomeTaxesReconciliationOfEffectiveTaxRateDetails
638 Implied Table Table

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*

 implied:Table
639 INCOME TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
640 Earnings before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
641 Canadian statutory tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
642 Statutory tax Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
643 Non-taxable component of capital losses (gains) Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
644 Share-based compensation and other permanent items Concept (Monetary) For Period Debit su:TaxEffectOfShareBasedCompensationAndOtherPermanentItems
645 Assessments and adjustments Concept (Monetary) For Period Debit su:TaxEffectOfAssessmentsAndAdjustments
646 Impact of income tax rate and legislative changes Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
647 Foreign tax rate differential Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
648 Non-taxable component of acquisitions and dispositions Concept (Monetary) For Period Credit su:TaxEffectOfNonTaxableComponentOfAcquisitionsAndDispositions
649 Movement in unrecognized deferred income tax assets Concept (Monetary) For Period Debit su:TaxEffectRecognitionOfDeferredIncomeTaxAssetWasRecognized
650 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
651 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
652 Effective tax rate Concept (Percent) For Period ifrs-full:AverageEffectiveTaxRate
653 41003 - Disclosure - Income Taxes - Deferred Income Tax Balances (Details) Network

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 http://www.suncor.com/role/DisclosureIncomeTaxesDeferredIncomeTaxBalancesDetails
654 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
655 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
656 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
657 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
658 Decommissioning and Restoration Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
659 Employee retirement benefit plans Member su:EmployeeRetirementBenefitPlansMember
660 Tax loss carryforwards Member ifrs-full:UnusedTaxLossesMember
661 Other deferred income tax (assets) liabilities Member ifrs-full:OtherTemporaryDifferencesMember
662 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
663 Deferred income tax expense (recovery) Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
664 Deferred income tax assets Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
665 Deferred income tax liability Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
666 Net deferred income tax liability Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
667 41004 - Disclosure - Income Taxes - Change in Deferred Income Tax Balances (Details) Network

*

*

 http://www.suncor.com/role/DisclosureIncomeTaxesChangeInDeferredIncomeTaxBalancesDetails
668 Implied Table Table

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669 INCOME TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
670 Reconciliation of changes in deferred tax liability (asset) [abstract] Abstract ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract
671 Net deferred tax income tax liability, beginning of year Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
672 Recognized in deferred income tax expense Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
673 Recognized in other comprehensive income Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
674 Foreign exchange, disposition and other Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset
675 Net deferred income tax liability, end of year Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
676 41005 - Disclosure - Income Taxes - Deferred Tax in Shareholders' Equity (Details) Network

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*

 http://www.suncor.com/role/DisclosureIncomeTaxesDeferredTaxInShareholdersEquityDetails
677 Implied Table Table

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*

 implied:Table
678 INCOME TAXES Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
679 Deferred Tax in Shareholders' Equity Abstract ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquityAbstract
680 Actuarial gain on employment retirement benefit plans Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
681 Total income tax expense reported in equity Concept (Monetary) For Period Debit ifrs-full:CurrentAndDeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity
682 41006 - Disclosure - Income Taxes - Deferred Income Tax Asset (Details) Network

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*

 http://www.suncor.com/role/DisclosureIncomeTaxesDeferredIncomeTaxAssetDetails
683 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
684 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
685 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
686 Tax loss carryforwards Member ifrs-full:UnusedTaxLossesMember
687 Earnings retained in our investments in foreign subsidiaries Member su:RetainedEarningsInvestmentsInForeignSubsidiariesMember
688 United States Government Member su:UnitedStatesGovernmentMember
689 Government of British Columbia Member su:GovernmentOfBritishColumbiaMember
690 Scenario [Axis] Axis us-gaap:StatementScenarioAxis
691 Scenario, Unspecified [Domain] Member us-gaap:ScenarioUnspecifiedDomain
692 Scenario, Forecast [Member] Member us-gaap:ScenarioForecastMember
693 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
694 Deferred income tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
695 Capital losses on foreign exchange Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
696 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
697 Deferred income tax liability (asset) Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
698 Tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
699 Enacted tax rate Concept (Percent) For Period su:EffectiveIncomeTaxRateChangeInEnactedTaxRatePercent
700 Deferred income tax expense (recovery) Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
701 41101 - Disclosure - Earnings Per Common Share (Details) Network

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 http://www.suncor.com/role/DisclosureEarningsPerCommonShareDetails
702 Implied Table Table

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 implied:Table
703 Earnings Per Common Share Abstract ifrs-full:EarningsPerShareAbstract
704 Net earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
705 Dilutive impact of accounting for awards as equity settled Concept (Monetary) For Period Debit su:DilutiveImpactOfAccountingForSettledAsEquityAwards
706 Net earnings - diluted Concept (Monetary) For Period Debit su:NetDilutedEarnings
707 Weighted average number of common shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
708 Dilutive Securities: Abstract su:InformationAboutDilutiveSecuritiesAbstract
709 Effect of share options Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
710 Weighted average number of diluted common shares Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
711 Basic earnings per share Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
712 Diluted earnings per share Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
713 41201 - Disclosure - Cash And Cash Equivalents (Details) Network

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*

 http://www.suncor.com/role/DisclosureCashAndCashEquivalentsDetails
714 Implied Table Table

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 implied:Table
715 Cash and cash equivalents Abstract ifrs-full:CashAndCashEquivalentsAbstract
716 Cash Concept (Monetary) As Of Debit ifrs-full:Cash
717 Cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
718 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
719 41301 - Disclosure - Supplemental Cash Flow Information (Details) Network

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 http://www.suncor.com/role/DisclosureSupplementalCashFlowInformationDetails
720 Implied Table Table

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 implied:Table
721 Supplemental Cash Flow Information Abstract su:SupplementalInformationRelatedToCashFlowAbstract
722 Accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
723 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
724 Accounts payable and accrued liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
725 Current portion of provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
726 Income taxes payable (net) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncomeTaxExpense
727 Total (increase) decrease in working capital Concept (Monetary) For Period Debit su:IncreaseDecreaseInNonCashWorkingCapital
728 Relating to : Abstract su:ActivityWiseBreakUpOfIncreaseDecreaseInNonCashWorkingCapitalAbstract
729 Decrease (increase) in non-cash working capital Concept (Monetary) For Period Debit su:IncreaseDecreaseInNonCashWorkingCapitalFromOperatingActivities
730 Decrease in non-cash working capital Concept (Monetary) For Period Debit su:IncreaseDecreaseInNonCashWorkingCapitalFromInvestingActivities
731 Total (increase) decrease in working capital Concept (Monetary) For Period Debit su:IncreaseDecreaseInNonCashWorkingCapital
732 41302 - Disclosure - Supplemental Cash Flow Information - Reconciliation of movements of liabilities to cash flows (Details) Network

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 http://www.suncor.com/role/DisclosureSupplementalCashFlowInformationReconciliationOfMovementsOfLiabilitiesToCashFlowsDetails
733 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
734 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
735 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
736 Short-Term Debt Member ifrs-full:ShorttermBorrowingsMember
737 Current Portion Of Long-Term Debt Member su:CurrentPortionOfLongTermBorrowingsMember
738 Long-Term Debt Member ifrs-full:LongtermBorrowingsMember
739 Partnership Liability Member su:PartnershipLiabilityMember
740 Dividends Payable Member su:DividendsPayableMember
741 Reconciliation of movements of liabilities to cash flows arising from financing activities LineItems ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems
742 Liabilities arising from financing activities at beginning of period Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
743 Changes from financing cash flows: Abstract ifrs-full:ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract
744 Net issuance of commercial paper Concept (Monetary) For Period Debit su:IncreaseDecreaseThroughNetIssuanceRepaymentOfCommercialPaperLiabilitiesArisingFromFinancingActivities
745 Repayment of long-term debt Concept (Monetary) For Period Credit su:DecreaseThroughRepaymentOfLongTermDebtLiabilitiesArisingFromFinancingActivities
746 Realized foreign exchange losses Concept (Monetary) For Period Credit su:IncreaseDecreaseThroughEffectOfChangesInRealizedForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
747 Dividends paid on common shares Concept (Monetary) For Period Credit su:DecreaseThroughDividendsOnCommonSharesLiabilitiesArisingFromFinancingActivities
748 Payment of finance lease liabilities Concept (Monetary) For Period Credit su:DecreaseThroughFinanceLeasesPaymentsLiabilitiesArisingFromFinancingActivities
749 Distributions to non-controlling interest Concept (Monetary) For Period Credit su:DecreaseThroughEffectOfDistributionsToNonControllingInterestLiabilitiesArisingFromFinancingActivities
750 Dividends declared on common shares Concept (Monetary) For Period Debit su:IncreaseDecreaseThroughEffectOfDividendLiabilitiesArisingFromFinancingActivities
751 Unrealized foreign exchange losses Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
752 Deferred financing costs Concept (Monetary) For Period Debit su:IncreaseThroughDeferredFinanceCostLiabilitiesArisingFromFinancingActivities
753 Modification to finance lease liabilities Concept (Monetary) For Period Credit su:NoncashChangesNewFinanceLeaseLiabilities
754 Reclassification from long-term debt to current portion of long-term debt Concept (Monetary) For Period Credit su:IncreaseDecreaseThroughReclassificationFromLongTermDebtToCurrentPortionOfLongTermDebtLiabilitiesArisingFromFinancingActivities
755 Liabilities arising from financing activities at end of period Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
756 41401 - Disclosure - Inventories (Details) Network

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*

 http://www.suncor.com/role/DisclosureInventoriesDetails
757 Implied Table Table

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 implied:Table
758 Inventories Abstract ifrs-full:ClassesOfInventoriesAbstract
759 Crude oil Concept (Monetary) As Of Debit ifrs-full:CurrentCrudeOil
760 Refined products Concept (Monetary) As Of Debit ifrs-full:CurrentPetroleumAndPetrochemicalProducts
761 Materials, supplies and merchandise Concept (Monetary) As Of Debit ifrs-full:CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices
762 Energy trading commodity inventories Concept (Monetary) As Of Debit su:EnergyTradingCommodityInventories
763 Total current inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
764 Write-downs (reversals of write-downs) of inventories Abstract ifrs-full:WritedownsReversalsOfWritedownsOfInventoriesAbstract
765 Product inventory expensed Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
766 Crude oil inventory write-down Concept (Monetary) For Period Debit su:CrudeOilInventoryWritedown
767 Materials, supplies and merchandise inventory write-down Concept (Monetary) For Period Debit su:MaterialsSuppliesAndMerchandiseInventoryWritedown
768 41501 - Disclosure - Property Plant And Equipment (Details) Network

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*

 http://www.suncor.com/role/DisclosurePropertyPlantAndEquipmentDetails
769 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
770 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
771 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
772 Oil and Gas properties Member ifrs-full:OilAndGasAssetsMember
773 Plant and Equipment Member ifrs-full:OtherPropertyPlantAndEquipmentMember
774 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
775 Carrying amount [member] Member ifrs-full:CarryingAmountMember
776 Cost Member ifrs-full:GrossCarryingAmountMember
777 Accumulated provision Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
778 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
779 Reconciliation of changes in property, plant and equipment [abstract] Abstract ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
780 Balance at the beginning Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
781 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
782 Transfers from exploration and evaluation Concept (Monetary) For Period Debit su:TransfersFromExplorationAndEvaluationPropertyPlantAndEquipment
783 Acquisitions Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
784 Changes in decommissioning and restoration Concept (Monetary) For Period Debit su:ChangesThroughDecommissioningAndRestorationPropertyPlantAndEquipment
785 Disposals and derecognition Concept (Monetary) For Period Credit ifrs-full:DisposalsAndRetirementsPropertyPlantAndEquipment
786 Foreign exchange adjustments Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
787 Reclassified from assets held for sale Concept (Monetary) For Period Debit su:IncreaseFromClassifiedAsHeldForSalePropertyPlantAndEquipment
788 Depreciation and depletion Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
789 Balance at the end Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
790 41502 - Disclosure - Property Plant And Equipment - Segment breakup - (Details) Network

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 http://www.suncor.com/role/DisclosurePropertyPlantAndEquipmentSegmentBreakupDetails
791 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
792 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
793 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
794 Corporate Energy Trading And Eliminations Member su:CorporateEnergyTradingAndEliminationsMember
795 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
796 Property, plant and equipment Member ifrs-full:PropertyPlantAndEquipmentMember
797 Oil and Gas properties Member ifrs-full:OilAndGasAssetsMember
798 Plant and Equipment Member ifrs-full:OtherPropertyPlantAndEquipmentMember
799 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
800 Carrying amount [member] Member ifrs-full:CarryingAmountMember
801 Cost Member ifrs-full:GrossCarryingAmountMember
802 Accumulated provision Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
803 Segments [axis] Axis ifrs-full:SegmentsAxis
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812 41601 - Disclosure - Exploration And Evaluation Assets (Details) Network

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813 Disclosure of detailed information about intangible assets [table] Table

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827 41701 - Disclosure - Other Assets (Details) Network

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828 Implied Table Table

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833 41801 - Disclosure - Goodwill And Other Intangible Assets (Details) Network

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 http://www.suncor.com/role/DisclosureGoodwillAndOtherIntangibleAssetsDetails
834 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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857 Projected West Texas Intermediate price prices for 2020 Concept (Decimal) For Period su:OilPricePerBarrelUsedToBaseCashFlowProjectionsAfterOneYear
858 Projected West Texas Intermediate price prices for 2021 Concept (Per Unit) For Period su:OilPricePerBarrelUsedToBaseCashFlowProjectionsAfterTwoYears
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865 41901 - Disclosure - Debt And Credit Facilities (Details) Network

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866 Disclosure of detailed information about borrowings [table] Table

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 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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927 41902 - Disclosure - Debt And Credit Facilities- Scheduled debt repayments (Details) Network

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928 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

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939 41903 - Disclosure - Debt And Credit Facilities-Credit facilities- (Details) Network

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 http://www.suncor.com/role/DisclosureDebtAndCreditFacilitiesCreditFacilitiesDetails
940 Disclosure of detailed information about borrowings [table] Table

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955 42001 - Disclosure - Other long-term liabilities (Details) Network

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956 Disclosure of detailed information about business combination [table] Table

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971 42101 - Disclosure - Pension and other PostRetirement Benefits (Details) Network

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972 Disclosure of defined benefit plans [table] Table

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999 Interest costs Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
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1001 Foreign exchange Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
1002 Settlements Concept (Monetary) For Period Debit ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset
1003 Administrative costs Concept (Monetary) For Period Credit su:AdministrativeExpenseEffectOnNetBenefitLiabilityAsset
1004 Experience (gain) loss arising on plan liabilities Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromExperienceAdjustmentsNetDefinedBenefitLiabilityAsset
1005 Actuarial gain arising from changes in demographic assumptions Concept (Monetary) For Period Debit ifrs-full:ActuarialGainsLossesArisingFromChangesInDemographicAssumptionsNetDefinedBenefitLiabilityAsset
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1009 Net unfunded obligation Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
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1011 Weighted average duration of defined benefit obligation Concept (Decimal) For Period ifrs-full:WeightedAverageDurationOfDefinedBenefitObligation
1012 42102 - Disclosure - Pension and other PostRetirement Benefits - Expenses (Details) Network

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1013 Disclosure of defined benefit plans [table] Table

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1029 42103 - Disclosure - Pension and other PostRetirement Benefits - Actuarial assumptions (Details) Network

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 http://www.suncor.com/role/DisclosurePensionAndOtherPostretirementBenefitsActuarialAssumptionsDetails
1030 Disclosure of defined benefit plans [table] Table

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1052 42104 - Disclosure - Pension and other Post-Retirement Benefits - Investment Objectives (Details) Network

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 http://www.suncor.com/role/DisclosurePensionAndOtherPostRetirementBenefitsInvestmentObjectivesDetails
1053 Disclosure of defined benefit plans [table] Table

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1071 Expected cash contributions Concept (Monetary) For Period Credit ifrs-full:EstimateOfContributionsExpectedToBePaidToPlan
1072 42201 - Disclosure - Provisions (Details) Network

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1073 Disclosure of other provisions [table] Table

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1093 42202 - Disclosure - Provisions - Decommissioning and Restoration (Details) Network

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 http://www.suncor.com/role/DisclosureProvisionsDecommissioningAndRestorationDetails
1094 Implied Table Table

*

*

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1100 42301 - Disclosure - Share Capital (Details) Network

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*

 http://www.suncor.com/role/DisclosureShareCapitalDetails
1101 Statement of changes in equity [table] Table

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*

 ifrs-full:StatementOfChangesInEquityTable
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1115 42401 - Disclosure - Share-Based Compensation (Details) Network

*

*

 http://www.suncor.com/role/DisclosureShareBasedCompensationDetails
1116 Implied Table Table

*

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 implied:Table
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1120 Total share-based compensation expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1121 42402 - Disclosure - Share-Based Compensation - Liability Recognized For Share-Based Compensation - (Details) Network

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 http://www.suncor.com/role/DisclosureShareBasedCompensationLiabilityRecognizedForShareBasedCompensationDetails
1122 Implied Table Table

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1128 42403 - Disclosure - Share-Based Compensation - Stock Option Plans - (Details) Network

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*

 http://www.suncor.com/role/DisclosureShareBasedCompensationStockOptionPlansDetails
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*

*

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1148 42404 - Disclosure - Share Based Compensation - Summary of Stock Option Plans - (Details) Network

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*

 http://www.suncor.com/role/DisclosureShareBasedCompensationSummaryOfStockOptionPlansDetails
1149 Implied Table Table

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 implied:Table
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1168 42405 - Disclosure - Share-Based Compensation - Exercise Price - (Details) Network

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*

 http://www.suncor.com/role/DisclosureShareBasedCompensationExercisePriceDetails
1169 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
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1189 42406 - Disclosure - Share-Based Compensation - Share Unit Plans - (Details) Network

*

*

 http://www.suncor.com/role/DisclosureShareBasedCompensationShareUnitPlansDetails
1190 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
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1195 Deferred Share Units (DSUs) Member su:DeferredShareUnitsMember
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1197 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
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1201 Ranges [member] Member ifrs-full:RangesMember
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1208 Second increments of share price receivable by executives at the time of vesting Concept (Percent) As Of su:PercentageOfSharePriceEntitleToReceiveAtTimeOfVestingIncrementsTwo
1209 Third increments of share price receivable by executives at the time of vesting Concept (Percent) As Of su:PercentageOfSharePriceEntitleToReceiveAtTimeOfVestingIncrementsThree
1210 Fourth increments of share price receivable by executives at the time of vesting Concept (Percent) As Of su:PercentageOfSharePriceEntitleToReceiveAtTimeOfVestingIncrementsFour
1211 Outstanding, beginning of year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1212 Granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
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1216 42407 - Disclosure - Share-Based Compensation - Stock Appreciation Rights - (Details) Network

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*

 http://www.suncor.com/role/DisclosureShareBasedCompensationStockAppreciationRightsDetails
1217 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
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1226 Granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1227 Exercised Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
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1229 Outstanding, end of year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1230 Exercisable, end of year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
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1232 Weighted average exercise price Outstanding, beginning of year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1233 Weighted average exercise price, Granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement
1234 Weighted average exercise price, Exercised Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1235 Weighted average exercise price, Forfeited/expired Concept (Share) For Period su:WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedAndExpiredInShareBasedPaymentArrangement
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1237 Weighted average exercise price, Exercisable, end of year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
1238 42501 - Disclosure - Financial Instruments And Risk Management - Non Derivative Financial Instruments (Details) Network

*

*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementNonDerivativeFinancialInstrumentsDetails
1239 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1241 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1242 Fixed Term Notes Member su:FixedTermDebtRedeemableAtOptionOfCompanyMember
1243 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1244 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
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1255 42502 - Disclosure - Financial Instruments And Risk Management - Non Designated Derivative Financial Instruments (Details) Network

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*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementNonDesignatedDerivativeFinancialInstrumentsDetails
1256 Disclosure of detailed information about financial instruments [table] Table

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 ifrs-full:DisclosureOfFinancialInstrumentsTable
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1266 Unrealized (losses) gains recognized in earnings during the year (note 7) Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets
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1268 Fair value outstanding beginning balance Concept (Monetary) As Of Credit ifrs-full:Liabilities
1269 Cash Settlements - received during the year Concept (Monetary) For Period Credit ifrs-full:SettlementsFairValueMeasurementAssets
1270 Cash Settlements paid during the year Concept (Monetary) For Period Debit ifrs-full:SettlementsFairValueMeasurementLiabilities
1271 Fair value outstanding ending balance Concept (Monetary) As Of Credit ifrs-full:Liabilities
1272 42503 - Disclosure - Financial Instruments And Risk Management - Fair Value Hierarchy (Details) Network

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*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementFairValueHierarchyDetails
1273 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
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1287 Transfers of financial liabilities from level 2 to 1 Concept (Monetary) For Period ifrs-full:TransfersOutOfLevel2IntoLevel1OfFairValueHierarchyLiabilities
1288 42504 - Disclosure - Financial Instruments And Risk Management - Financial Assets (Details) Network

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*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementFinancialAssetsDetails
1289 Disclosure of offsetting of financial assets [table] Table

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*

 ifrs-full:DisclosureOfOffsettingOfFinancialAssetsTable
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1297 Gross Liabilities Offset Concept (Monetary) As Of Credit ifrs-full:GrossFinancialLiabilitiesSetOffAgainstFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
1298 Net Amounts Presented Concept (Monetary) As Of Debit ifrs-full:NetFinancialAssetsSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreementsInStatementOfFinancialPosition
1299 42505 - Disclosure - Financial Instruments And Risk Management - Financial Liabilities (Details) Network

*

*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementFinancialLiabilitiesDetails
1300 Financial Liabilities Offsetting Table

*

*

 ifrs-full:DisclosureOfOffsettingOfFinancialLiabilitiesTable
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1307 Gross Liabilities Concept (Monetary) As Of Credit ifrs-full:GrossFinancialLiabilitiesSubjectToOffsettingEnforceableMasterNettingArrangementsOrSimilarAgreements
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1310 42506 - Disclosure - Financial Instruments And Risk Management - Risk Management (Details) Network

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*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementRiskManagementDetails
1311 Disclosure of risk management strategy related to hedge accounting [table] Table

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*

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1335 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1336 Total credit facilities Concept (Monetary) As Of Credit su:IfrsLineOfCreditFacilityMaximumBorrowingCapacity
1337 Total unutilized credit facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1338 Unused capacity under a Canadian debt shelf prospectus Concept (Monetary) As Of Credit su:DebtInstrumentUnusedBorrowingCapacityCanadianDebtShelfProspectusAmount
1339 Unused capacity under Canadian and U.S. universal shelf prospectus Concept (Monetary) As Of Credit su:DebtInstrumentUnusedBorrowingCapacityCanadianAndUnitedStatesUniversalShelfProspectusAmount
1340 42507 - Disclosure - Financial Instruments And Risk Management - Liquidity Risk (Details) Network

*

*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementLiquidityRiskDetails
1341 Disclosure of financial liabilities [table] Table

*

*

 ifrs-full:DisclosureOfFinancialLiabilitiesTable
1342 Maturity [axis] Axis ifrs-full:MaturityAxis
1343 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1344 2019 Member ifrs-full:NotLaterThanOneYearMember
1345 1 to 3 years Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1346 3 to 5 years Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
1347 Thereafter Member ifrs-full:LaterThanFiveYearsMember
1348 Types of financial liabilities [axis] Axis ifrs-full:TypesOfFinancialLiabilitiesAxis
1349 Financial liabilities, type [member] Member ifrs-full:FinancialLiabilitiesTypeMember
1350 Accounts Payable Member su:IfrsAccountsPayableMember
1351 Derivatives Member ifrs-full:DerivativesMember
1352 Debt Member su:IfrsDebtMember
1353 Financial Liabilities LineItems ifrs-full:DisclosureOfFinancialLiabilitiesLineItems
1354 Trade and other payables undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
1355 Gross derivative liability undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows
1356 Debt undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1357 Derivative liabilities, net Concept (Monetary) As Of Credit su:DerivativeFinancialLiabilitiesNet
1358 Derivative financial assets Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssetsHeldForHedging
1359 42508 - Disclosure - Financial Instruments And Risk Management - Credit Risk (Details) Network

*

*

 http://www.suncor.com/role/DisclosureFinancialInstrumentsAndRiskManagementCreditRiskDetails
1360 Disclosure of credit risk exposure [table] Table

*

*

 ifrs-full:DisclosureOfCreditRiskExposureTable
1361 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1362 Risks [member] Member ifrs-full:TypesOfRisksMember
1363 Credit Risk Member ifrs-full:CreditRiskMember
1364 Credit Exposure LineItems ifrs-full:DisclosureOfCreditRiskExposureLineItems
1365 Company's exposure Concept (Monetary) As Of Credit ifrs-full:ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts
1366 42601 - Disclosure - Capital Structure Financial Policies - (Details) Network

*

*

 http://www.suncor.com/role/DisclosureCapitalStructureFinancialPoliciesDetails
1367 Disclosure of objectives, policies and processes for managing capital [table] Table

*

*

 ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalTable
1368 Range [axis] Axis ifrs-full:RangeAxis
1369 Ranges [member] Member ifrs-full:RangesMember
1370 Maximum Member ifrs-full:TopOfRangeMember
1371 CAPITAL STRUCTURE FINANCIAL POLICIES LineItems ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalLineItems
1372 Percentage of Financial covenant Concept (Pure) For Period su:DebtInstrumentCovenantPercentage
1373 Components of Ratio Abstract su:ComponentsOfRatiosAbstract
1374 Short-term debt Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1375 Current portion of long-term debt Concept (Monetary) As Of Credit ifrs-full:CurrentPortionOfLongtermBorrowings
1376 Long-term debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1377 Total debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
1378 Less: Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1379 Net debt Concept (Monetary) As Of Credit ifrs-full:NetDebt
1380 Shareholders' equity Concept (Monetary) As Of Credit ifrs-full:Equity
1381 Total capitalization (total debt plus shareholders' equity) Concept (Monetary) As Of Credit su:CapitalizationLongTermDebtAndShareholdersEquity
1382 Funds from operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital
1383 Net debt to funds from operations Concept (Pure) As Of su:RatioOfDebtToFundsFromOperations
1384 Total debt to total debt plus shareholders' equity Concept (Pure) For Period su:PercentageOfDebtToTotalCapitalization
1385 42701 - Disclosure - Joint Arrangements - Joint Operations (Details) Network

*

*

 http://www.suncor.com/role/DisclosureJointArrangementsJointOperationsDetails
1386 Disclosure of joint operations [table] Table

*

*

 ifrs-full:DisclosureOfJointOperationsTable
1387 Joint operations [axis] Axis ifrs-full:JointOperationsAxis
1388 Entity's total for joint operations [member] Member ifrs-full:EntitysTotalForJointOperationsMember
1389 Fort Hills Energy Limited Partnership Member su:FortHillsEnergyLimitedPartnershipOperatedBySuncorJointOperationsMember
1390 Syncrude Member su:SyncrudeNonOperatedByJointOperationsMember
1391 Terra Nova Member su:TerraNovaOperatedBySuncorJointOperationsMember
1392 Buzzard Member su:BuzzardNonOperatedByJointOperationsMember
1393 Fenja Development JV Member su:FenjaDevelopmentJvNonOperatedByJointOperationsMember
1394 Golden Eagle Area Development Member su:GoldenEagleAreaDevelopmentNonOperatedByJointOperationMember
1395 Hibernia and the Hibernia South Extension Unit Member su:HiberniaAndHiberniaSouthExtensionUnitNonOperatedByJointOperationMember
1396 Hebron Member su:HebronNonOperatedByJointOperationMember
1397 Harouge Oil Operations Member su:HarougeOilOperationsNonOperatedByJointOperationMember
1398 North Sea Rosebank Project Member su:NorthSeaRosebankProjectMember
1399 Oda Member su:OdaNonOperatedByJointOperationMember
1400 White Rose and the White Rose Extensions Member su:WhiteRoseAndWhiteRoseExtensionsNonOperatedByJointOperationMember
1401 Range [axis] Axis ifrs-full:RangeAxis
1402 Ranges [member] Member ifrs-full:RangesMember
1403 Minimum Member ifrs-full:BottomOfRangeMember
1404 Maximum Member ifrs-full:TopOfRangeMember
1405 Disclosure of joint operations LineItems ifrs-full:DisclosureOfJointOperationsLineItems
1406 Ownership interest (as percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
1407 42702 - Disclosure - Joint Arrangements - Joint Ventures and Associates (Details) Network

*

*

 http://www.suncor.com/role/DisclosureJointArrangementsJointVenturesAndAssociatesDetails
1408 Disclosure Of Joint Ventures And Associates [Table] Table

*

*

 su:DisclosureOfJointVenturesAndAssociatesTable
1409 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1410 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1411 Associates Member ifrs-full:AssociatesMember
1412 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
1413 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
1414 Joint ventures Member ifrs-full:JointVenturesMember
1415 Disclosure Of Joint Ventures And Associates [Line Items] LineItems su:DisclosureOfJointVenturesAndAssociatesLineItems
1416 Net earnings (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1417 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
1418 Total Comprehensive Income Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1419 Carrying amount as at December 31 Concept (Monetary) As Of Debit su:CarryingValue
1420 42801 - Disclosure - Subsidiaries (Details) Network

*

*

 http://www.suncor.com/role/DisclosureSubsidiariesDetails
1421 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
1422 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1423 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1424 Suncor Energy Venture Holding Corporation Member su:SuncorEnergyVentureHoldingCorporationMember
1425 Suncor Energy Ventures Partnership Member su:SuncorEnergyVenturesPartnershipMember
1426 Disclosure of subsidiaries LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1427 Ownership by subsidiaries (as a percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
1428 42901 - Disclosure - Related Party Disclosures (Details) Network

*

*

 http://www.suncor.com/role/DisclosureRelatedPartyDisclosuresDetails
1429 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1430 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1431 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1432 Parachem Chemicals Inc Member su:ParachemChemicalsIncMember
1433 RELATED PARTY DISCLOSURES LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1434 Sales Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
1435 Purchases Concept (Monetary) For Period Debit ifrs-full:PurchasesOfGoodsRelatedPartyTransactions
1436 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1437 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1438 Compensation of Key Management Personnel Abstract ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract
1439 Salaries and other short-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1440 Pension and other post-retirement benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1441 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1442 Total Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1443 43001 - Disclosure - Commitments, Contingencies And Guarantees (Details) Network

*

*

 http://www.suncor.com/role/DisclosureCommitmentsContingenciesAndGuaranteesDetails
1444 Disclosure of contingent liabilities [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1445 Maturity [axis] Axis ifrs-full:MaturityAxis
1446 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1447 2019 Member ifrs-full:NotLaterThanOneYearMember
1448 2020 Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1449 2021 Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1450 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1451 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1452 Thereafter Member ifrs-full:LaterThanFiveYearsMember
1453 Commitments, Contingencies and guarantees LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1454 Product transportation and storage Concept (Monetary) As Of Credit su:ProductTransportationAndStorageCommitments
1455 Energy services Concept (Monetary) As Of Credit su:EnergyServicesCommitments
1456 Exploration work commitments Concept (Monetary) As Of Credit su:ExplorationWorkCommitmentsCommitments
1457 Other Concept (Monetary) As Of Credit su:OtherCommitments
1458 Operating leases Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1459 Total Concept (Monetary) As Of Credit su:ContractualCommitments
1460 Operating lease expense Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
1461 43002 - Disclosure - Commitments, Contingencies And Guarantees - Contingencies (Details) Network

*

*

 http://www.suncor.com/role/DisclosureCommitmentsContingenciesAndGuaranteesContingenciesDetails
1462 Disclosure of contingent liabilities [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1463 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1464 Risks [member] Member ifrs-full:TypesOfRisksMember
1465 Oil sands risks Member su:OilSandsRisksMember
1466 Offshore risks Member su:OffshoreRisksMember
1467 Refining risks Member su:RefiningRisksMember
1468 Commitments, Contingencies and guarantees LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1469 Insurance coverage Concept (Monetary) As Of Debit su:InsuranceCoverage
1470 Maximum potential amount payable under indemnification agreements Concept (Monetary) As Of Credit su:MaximumPotentialAmountPayableUnderIndemnificationAgreements
1471 43101 - Disclosure - Acquisition Of Additional Ownership Interest In Syncrude (Details) Network

*

*

 http://www.suncor.com/role/DisclosureAcquisitionOfAdditionalOwnershipInterestInSyncrudeDetails
1472 Disclosure of detailed information about business combination [table] Table

*

*

 ifrs-full:DisclosureOfBusinessCombinationsTable
1473 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1474 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1475 Syncrude Member su:SyncrudeMember
1476 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1477 Percentage of additional working interest acquired Concept (Percent) For Period su:PercentageOfAdditionalWorkingInterestAcquired
1478 Cash transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1479 Interest purchased (as a percent) Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1480 Amounts recognised as of acquisition date for each major class of assets acquired and liabilities assumed [abstract] Abstract ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract
1481 Assets acquired Abstract su:AssetsAcquiredInBusinessCombinationAbstract
1482 Accounts receivable Concept (Monetary) As Of Debit ifrs-full:FairValueOfAcquiredReceivables
1483 Inventory Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
1484 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
1485 Exploration and evaluation Concept (Monetary) As Of Debit su:ExplorationAndEvaluationAssetsRecognisedAsOfAcquisitionDate
1486 Total assets acquired Concept (Monetary) As Of Debit su:BusinessCombinationAssetsAcquiredLiabilitiesAssumedAssets
1487 Liabilities assumed Abstract su:LiabilitiesAcquiredInBusinessCombinationAbstract
1488 Accounts payable and other liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
1489 Employee future benefits Concept (Monetary) As Of Credit su:EmployeeBenefitLiabilitiesRecognisedAsOfAcquisitionDate
1490 Decommissioning provision Concept (Monetary) As Of Credit su:DecommissioningProvisionRecognisedAsOfAcquisitionDate
1491 Deferred income taxes Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
1492 Total liabilities assumed Concept (Monetary) As Of Credit su:BusinessCombinationAssetsAcquiredLiabilitiesAssumedLiabilities
1493 Net assets acquired Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1494 Contribution to gross revenues Concept (Monetary) For Period Credit ifrs-full:RevenueOfAcquiree
1495 Contribution to consolidated net income Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfAcquiree
1496 Proforma revenue contributed by acquired entity if acquisition had occurred at the beginning of year Concept (Monetary) For Period Credit su:ProformaRevenueOfAcquiredEntity
1497 Proforma net loss contributed by acquired entity if acquisition had occurred at the beginning of year Concept (Monetary) For Period Credit su:ProformaNetIncomeLossOfAcquiredEntity
1498 Proforma gross revenues Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
1499 Proforma net income Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfCombinedEntity
1500 43201 - Disclosure - Fort Hills (Details) Network

*

*

 http://www.suncor.com/role/DisclosureFortHillsDetails
1501 Disclosure of impairment loss and reversal of impairment loss [table] Table

*

*

 ifrs-full:DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable
1502 Joint operations [axis] Axis ifrs-full:JointOperationsAxis
1503 Entity's total for joint operations [member] Member ifrs-full:EntitysTotalForJointOperationsMember
1504 Fort Hills oil sands project Member su:FortHillsOilSandsProjectMember
1505 Fort Hills Energy Limited Partnership Member su:FortHillsEnergyLimitedPartnershipOperatedBySuncorJointOperationsMember
1506 Faroe Petroleum Member su:FaroePetroleumMember
1507 Range [axis] Axis ifrs-full:RangeAxis
1508 Ranges [member] Member ifrs-full:RangesMember
1509 Minimum Member ifrs-full:BottomOfRangeMember
1510 Maximum Member ifrs-full:TopOfRangeMember
1511 Legal Entity [Axis] Axis dei:LegalEntityAxis
1512 Entity [Domain] Member dei:EntityDomain
1513 Teck Resources Limited Member su:TeckResourcesLimitedMember
1514 Total Member su:TotalEAndPCanadaLimitedMember
1515 Disclosure of joint operations LineItems ifrs-full:DisclosureOfJointOperationsLineItems
1516 Interest purchased (as a percent) Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1517 Consideration paid Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1518 Interest (as a percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
1519 Risk adjusted discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
1520 Carrying amount as at December 31 Concept (Monetary) As Of Debit su:CarryingValue
1521 43301 - Disclosure - Sale Of Lubricants Business (Details) Network

*

*

 http://www.suncor.com/role/DisclosureSaleOfLubricantsBusinessDetails
1522 Assets and liabilities classified as held for sale Table

*

*

 su:NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleTable
1523 Assets and liabilities classified as held for sale [axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
1524 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
1525 Assets and liabilities classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleMember
1526 Lubricants business Member su:LubricantsBusinessMember
1527 Segments [axis] Axis ifrs-full:SegmentsAxis
1528 Segments [member] Member ifrs-full:SegmentsMember
1529 Refining and Marketing Member su:RefiningAndMarketingSegmentMember
1530 SALE OF LUBRICANTS BUSINESS LineItems su:NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleLineItems
1531 Proceeds from sale of business Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
1532 Gain on sale of business Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1533 Current tax expense Concept (Monetary) For Period Debit ifrs-full:TaxExpenseRelatingToGainLossOnDiscontinuance
1534 Deferred tax recovery Concept (Monetary) For Period Credit su:DeferredTaxRecoveryRelatingToGainLossOnDiscontinuance
1535 Assets Abstract ifrs-full:AssetsAbstract
1536 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
1537 Property, plant and equipment, net Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1538 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1539 Liabilities Abstract ifrs-full:LiabilitiesAbstract
1540 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
1541 Pension liability Concept (Monetary) As Of Credit ifrs-full:NoncurrentRecognisedLiabilitiesDefinedBenefitPlan
1542 Deferred income taxes Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1543 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1544 43401 - Disclosure - Sale Of Cedar Point (Details) Network

*

*

 http://www.suncor.com/role/DisclosureSaleOfCedarPointDetails
1545 Assets and liabilities classified as held for sale Table

*

*

 su:NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleTable
1546 Assets and liabilities classified as held for sale [axis] Axis ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis
1547 Assets and liabilities not classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember
1548 Assets and liabilities classified as held for sale [member] Member ifrs-full:AssetsAndLiabilitiesClassifiedAsHeldForSaleMember
1549 Cedar Point Wind Facility Member su:CedarPointWindFacilityMember
1550 Non Current Assets Or Disposal Groups Classified As Held For Sale [Line Items] LineItems su:NonCurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleLineItems
1551 Proceeds from sale of cedar point Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations
1552 Gain on disposal of assets Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1553 Current tax expense Concept (Monetary) For Period Debit ifrs-full:TaxExpenseRelatingToGainLossOnDiscontinuance
1554 Deferred tax recovery Concept (Monetary) For Period Credit su:DeferredTaxRecoveryRelatingToGainLossOnDiscontinuance
1555 Assets Abstract ifrs-full:AssetsAbstract
1556 Property, plant and equipment, net Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1557 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1558 Liabilities Abstract ifrs-full:LiabilitiesAbstract
1559 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1560 Provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
1561 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1562 43501 - Disclosure - East Tank Farm Development (ETFD) (Details) Network

*

*

 http://www.suncor.com/role/DisclosureEastTankFarmDevelopmentEtfdDetails
1563 Disclosure of subsidiaries [table] Table

*

*

 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
1564 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1565 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1566 East Tank Farm Development Member su:EastTankFarmDevelopmentMember
1567 Legal Entity [Axis] Axis dei:LegalEntityAxis
1568 Entity [Domain] Member dei:EntityDomain
1569 Fort McKay First Nation and the Mikisew Cree First Nation Partnership Member su:FortMckayFirstNationAndMikisewCreeFirstNationMember
1570 EAST TANK FARM DEVELOPMENT PARTNERSHIP (ETFD) LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
1571 Ownership interest sold Concept (Percent) For Period su:ProportionOfOwnershipInterestInSubsidiarySold
1572 Gross proceeds Concept (Monetary) For Period Debit ifrs-full:ProceedsFromChangesInOwnershipInterestsInSubsidiaries
1573 Ownership interest (as percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
1574 Distributions to partners Concept (Monetary) For Period Debit ifrs-full:DividendsRecognisedAsDistributionsToNoncontrollingInterests
1575 Allocated to interest expense Concept (Monetary) For Period Debit su:DividendsRecognisedAsDistributionsToNoncontrollingInterestsAllocatedToInterestExpenses
1576 Allocated to principal Concept (Monetary) For Period Debit su:DividendsRecognisedAsDistributionsToNoncontrollingInterestsAllocatedToPrincipal
1577 43601 - Disclosure - Other Transactions (Details) Network

*

*

 http://www.suncor.com/role/DisclosureOtherTransactionsDetails
1578 Disclosure of Other Transactions [Table] Table

*

*

 su:DisclosureOfOtherTransactionsTable
1579 Legal Entity [Axis] Axis dei:LegalEntityAxis
1580 Entity [Domain] Member dei:EntityDomain
1581 Suncor With the Other Working Interest Partners Member su:SuncorWithOtherWorkingInterestPartnersMember
1582 Joint operations [axis] Axis ifrs-full:JointOperationsAxis
1583 Entity's total for joint operations [member] Member ifrs-full:EntitysTotalForJointOperationsMember
1584 Joslyn Oil Sands Mining Project Member su:JoslynOilSandsMiningProjectMember
1585 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1586 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1587 Fenja Development Project Member su:FenjaDevelopmentProjectMember
1588 Canbriam Energy, Inc. Member su:CanbriamEnergyIncMember
1589 Segments [axis] Axis ifrs-full:SegmentsAxis
1590 Segments [member] Member ifrs-full:SegmentsMember
1591 Exploration and Production Member su:ExplorationAndProductionSegmentMember
1592 Disclosure of Other Transactions [Line Items] LineItems su:DisclosureOfOtherTransactionsLineItems
1593 Percentage of working interest agreed to sell Concept (Percent) As Of su:JointOperationsPercentageOfWorkingInterestAgreedToSell
1594 Gross proceeds Concept (Monetary) As Of Debit su:GrossProceedsFromSaleOfOilAndGasAssets
1595 Proceeds from disposal of assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfOilAndGasAssets
1596 Total receivable Concept (Monetary) As Of Debit ifrs-full:OtherReceivables
1597 Long term receivable Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
1598 Current receivable Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1599 Other receivable term Concept (xbrli:durationItemType) For Period su:OtherReceivableTerm
1600 Gain on sale of business Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfPropertyPlantAndEquipment
1601 Interest purchased (as a percent) Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1602 Consideration paid Concept (Monetary) As Of Credit ifrs-full:CashTransferred
1603 Interim settlement costs Concept (Monetary) As Of Credit su:InterimSettlementCostsUnderAcquisitionMethod
1604 Ownership interest (as percent) Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
1605 Net loss related to write down of equity method investment Concept (Monetary) For Period Debit su:NetLossRelatingToWriteDownOfEquityMethodInvestment
1606 Remaining carrying value of company's interest Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
1607 43701 - Disclosure - Subsequent Event (Details) Network

*

*

 http://www.suncor.com/role/DisclosureSubsequentEventDetails
1608 Disclosure of non-adjusting events after reporting period [table] Table

*

*

 ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
1609 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1610 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1611 Risk Mitigation Proceeds Member su:RiskMitigationProceedsMember
1612 Disclosure of non-adjusting events after reporting period [line items] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
1613 Risk mitigation proceeds Concept (Monetary) For Period Debit su:ProceedsFromRiskMitigation
1614 Risk mitigation, net of tax Concept (Monetary) For Period Debit su:ProceedsFromRiskMitigationNetOfTax

*

*