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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
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Dec. 31, 2023 | Dec. 31, 2022
Number of Common Shares |  |
Outstanding, beginning of year (in shares) | 1,909,190 | 2,001,211
Issued Upon Exercise of Warrants | 2,610 | 9,399
Issued Under Stock Option Plans | 3,679 | 11,069
Purchase of Common Shares under NCIB | (43,611) | (112,489)
Outstanding, end of year (in shares) | 1,871,868 | 1,909,190
Amount |  |
Outstanding, Beginning of Year | $ 16,320 | $ 17,016
Issued Upon Exercise of Warrants | 26 | 93
Issued Under Stock Option Plans | 58 | 170
Purchase of Common Shares under NCIB | (373) | (959)
Outstanding, End of Year | $ 16,031 | $ 16,320

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- Definition The nominal value of capital issued. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_e&doctype=Standard -URIDate 2023-03-23 + Details
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