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Accumulated Other Comprehensive Income (Details) - CAD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Analysis Of Other Comprehensive Income By Item [Abstract] |  |
Derivative financial instruments designated as cash flow hedges | $ 71 | $ 13
Foreign currency translation adjustment | (37) | 109
Accumulated other comprehensive income (loss) | $ 34 | $ 122

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- Definition Accumulated Other Comprehensive Income, Net Of Tax, Derivative Instruments Designated As Cash Flow Hedges + References No definition available. + Details
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- Definition Accumulated Other Comprehensive Income, Net Of Tax, Exchange Differences On Translation + References No definition available. + Details
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- 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 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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