XML 117 R87.htm IDEA: XBRL DOCUMENT
v3.24.1

Accumulated Other Comprehensive Income (Details) - CAD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Analysis Of Other Comprehensive Income By Item [Abstract] |  |
Derivative financial instruments designated as cash flow hedges | $ 72 | $ 75
Foreign currency translation adjustment | 100 | 134
Accumulated other comprehensive income | $ 172 | $ 209

X
- Definition Accumulated Other Comprehensive Income, Net Of Tax, Derivative Instruments Designated As Cash Flow Hedges + References No definition available. + Details
Name: | cnq_AccumulatedOtherComprehensiveIncomeNetOfTaxDerivativeInstrumentsDesignatedAsCashFlowHedges
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated Other Comprehensive Income, Net Of Tax, Exchange Differences On Translation + References No definition available. + Details
Name: | cnq_AccumulatedOtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Analysis Of Other Comprehensive Income By Item [Abstract] + References No definition available. + Details
Name: | cnq_AnalysisOfOtherComprehensiveIncomeByItemAbstract
Namespace Prefix: | cnq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of accumulated items of income and expense (including reclassification adjustments) that are not recognised in profit or loss as required or permitted by other IFRSs. [Refer: IFRSs [member]; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_AccumulatedOtherComprehensiveIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant