INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - CAD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 434	$ 348
Net gain (loss) in foreign currency translation adjustments, net of hedging activities	16	(20)
Change in derivatives designated as cash flow hedges	2	21
Change in pension and post-retirement defined benefit plans	20	29
Other comprehensive income (loss) before income taxes	38	30
Income tax (expense) recovery on above items	(22)	6
Other comprehensive income (loss)	16	36
Comprehensive income	$ 450	$ 384

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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