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Accumulated Other Comprehensive Income (Details) - CAD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
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

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No definition available.

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- Definition

Accumulated Other Comprehensive Income, Net Of Tax, Exchange Differences On Translation

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- Definition

Analysis Of Other Comprehensive Income By Item [Abstract]

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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

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