JOINT ARRANGEMENTS - Joint Ventures and Associates (Details) - CAD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
JOINT ARRANGEMENTS
Net (loss) earnings	$ 4,119	$ (4,319)
Other comprehensive income	793	(218)
Total Comprehensive Income (Loss)	4,912	(4,537)
Joint ventures
JOINT ARRANGEMENTS
Net (loss) earnings	5	(10)
Total Comprehensive Income (Loss)	5	(10)
Carrying amount as at December 31	63	58
Associates
JOINT ARRANGEMENTS
Net (loss) earnings	(2)	9
Total Comprehensive Income (Loss)	(2)	9
Carrying amount as at December 31	$ 66	$ 68

The amount of change in equity resulting from transactions and other events, other than those changes resulting from transactions with owners in their capacity as owners.

The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

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