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Investments - Summary of Investments (Details) - CAD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of detailed information about financial instruments [line items] |  |
Investments | $ 309 | $ 305
Investment in PrairieSky Royalty Ltd. |  |
Disclosure of detailed information about financial instruments [line items] |  |
Investments | 309 | 228
Investment in Inter Pipeline Ltd. |  |
Disclosure of detailed information about financial instruments [line items] |  |
Investments | $ 0 | $ 77

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- Details
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- Details
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