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Assets held for sale (Details) - CAD ($) $ in Millions |  |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 01, 2022 | Jan. 13, 2022 | Jun. 01, 2020 | Mar. 31, 2022 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of financial assets [line items] |  |  |  |  |  |  |
Proceeds from sale |  |  | $ 1,040 |  | $ 933 |  |
Net earnings |  |  |  |  |  | $ 2,892 | $ 2,699
Other disposals of assets [member] | Forecast |  |  |  |  |  |  |
Disclosure of financial assets [line items] |  |  |  |  |  |  |
Proceeds from sale | $ 55 | $ 55 |  |  |  |  |
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets classified as held for sale |  |  |  | $ 37 |  |  |
Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets classified as held for sale, tax |  |  |  | $ 3 |  |  |
Assets and liabilities classified as held for sale [member] |  |  |  |  |  |  |
Disclosure of financial assets [line items] |  |  |  |  |  |  |
Revenue |  |  |  |  |  | 64 | 61
Net earnings |  |  |  |  |  | $ 5 | $ 2

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- Definition Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets classified as held for sale + References No definition available. + Details
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