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Share Capital and Warrants - Issued and Outstanding - Warrants (Details) - Common Share Warrants - CAD ($) shares in Thousands, $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
Number of Warrants |  |
Outstanding, Beginning of Year (in shares) | 65,119 | 0
Issued Under the Arrangement, net of Issuance Costs (in shares) | 0 | 65,433
Issued Upon Exercise of Warrants (in shares) | (6,571) | (314)
Outstanding, End of Period (in shares) | 58,548 | 65,119
Amount |  |
Outstanding, Beginning of Year | $ 215 | $ 0
Issued Under the Arrangement, Net of Issuance Costs | 0 | 216
Issued Upon Exercise of Warrants | (21) | (1)
Outstanding, End of Period | $ 194 | $ 215

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