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Investments - PrairieSky (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]
(Gain) loss from investment	$ (196)	$ (141)	$ 171
Investment in PrairieSky Royalty Ltd.
Disclosure of detailed information about financial instruments [line items]
(Gain) loss from investment	(182)	(81)	117
Dividend income	(14)	(7)	(9)
(Gain) loss from investment	$ (196)	$ (88)	$ 108

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The gains (losses) on financial assets at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

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The amount of dividends recognised as income. Dividends are distributions of profits to holders of equity investments in proportion to their holdings of a particular class of capital.

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