INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - CAD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 765	$ 1,246	$ 1,355	$ 1,848
Net gain in foreign currency translation adjustments, net of hedging activities	719	10	383	20
Change in derivatives designated as cash flow hedges	2	(97)	3	(72)
Change in pension and post-retirement defined benefit plans	38	52	77	105
Equity Accounted Investments	73	0	135	0
Other comprehensive income (loss) before income taxes	832	(35)	598	53
Income tax recovery (expense) on above items	2	0	(34)	(30)
Other comprehensive income (loss)	834	(35)	564	23
Comprehensive income	$ 1,599	$ 1,211	$ 1,919	$ 1,871