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Investments - PrairieSky (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of detailed information about financial instruments [line items]
Gain from investment	$ (56)	$ (56)	$ (196)
Investment in PrairieSky Royalty Ltd.
Disclosure of detailed information about financial instruments [line items]
Gain from investment	(50)	(34)	(182)
Dividend income	(6)	(22)	(14)
Gain from investment	$ (56)	$ (56)	$ (196)

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Gains (Losses) On Investments

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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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