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Share Capital and Warrants - Issued and Outstanding - Common Shares (Detail) - Common Shares - CAD ($) shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Number of Common Shares |  |
Outstanding, beginning of year (in shares) | 1,871,868 | 1,909,190
Issued Upon Exercise of Warrants | 3,982 | 2,610
Issued Under Stock Option Plans | 5,049 | 3,679
Purchase of Common Shares under NCIB | (55,861) | (43,611)
Outstanding, end of year (in shares) | 1,825,038 | 1,871,868
Amount |  |
Outstanding, Beginning of Year | $ 16,031 | $ 16,320
Issued Upon Exercise of Warrants | 39 | 26
Issued Under Stock Option Plans | 68 | 58
Purchase of Common Shares under NCIB | (479) | (373)
Outstanding, End of Year | $ 15,659 | $ 16,031

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