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Net Earnings Per Common Share - Schedule of Basic and Diluted Net Earnings per Common Share (Details) - CAD ($) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract] |  |  |
Weighted average common shares outstanding – basic (thousands of shares) | 1,091,312 | 1,134,960 | 1,181,250
Effect of dilutive stock options (thousands of shares) | 10,812 | 14,222 | 5,307
Weighted average common shares outstanding – diluted (thousands of shares) | 1,102,124 | 1,149,182 | 1,186,557
Net earnings | $ 8,233 | $ 10,937 | $ 7,664
Net earnings per common share - basic (in CAD per share) | $ 7.54 | $ 9.64 | $ 6.49
Net earnings per common share - diluted (in CAD per share) | $ 7.47 | $ 9.52 | $ 6.46

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- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2023-01-01 -Paragraph 70 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2023-en-r&anchor=para_70_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2023-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2023-en-r&anchor=para_66&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2023-01-01 -Paragraph 67 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2023-en-r&anchor=para_67&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2023-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2023-en-r&anchor=para_66&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2023-01-01 -Paragraph 67 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2023-en-r&anchor=para_67&doctype=Standard -URIDate 2023-03-23 + Details
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