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Earnings per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2022
Earnings per Common Share |
Schedule of earnings per common share | ​
​ | ​ | ​ | ​ | ​ | ​
($ millions) |  | 2022 |  | 2021 |
Net earnings |  | 9 077 |  | 4 119 | ​
​ | ​ | ​ | ​ | ​ | ​
(millions of common shares) | ​ | ​ | ​ | ​ | ​
Weighted average number of common shares |  | 1 387 |  | 1 488 | ​
Dilutive securities: | ​ | ​ | ​ | ​ | ​
Effect of share options |  | 3 |  | 1 | ​
Weighted average number of diluted common shares |  | 1 390 |  | 1 489 | ​
​ | ​ | ​ | ​ | ​ | ​
(dollars per common share) | ​ | ​ | ​ | ​ | ​
Basic earnings per share |  | 6.54 |  | 2.77 | ​
Diluted earnings per share |  | 6.53 |  | 2.77 | ​

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