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Earnings per share | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Earnings per share | Earnings per share
| Three Months Ended |  |
| March 31 |  |
(in millions of U.S. dollars, except share and per share data) | 2021 |  | 2020 |  |  |  |
Numerator: |  |  |  |  |  |  |
Net income | $ | 2,300 |  |  | $ | 252 |  |  |  |  |
Denominator: |  |  |  |  |  |  |
Denominator for basic earnings per share: |  |  |  |  |  |  |
Weighted-average shares outstanding | 450,539,568 |  |  | 451,868,658 |  |  |  |  |
Denominator for diluted earnings per share: |  |  |  |  |  |  |
Share-based compensation plans | 2,795,971 |  |  | 2,651,610 |  |  |  |  |
Weighted-average shares outstanding and assumed conversions | 453,335,539 |  |  | 454,520,268 |  |  |  |  |
Basic earnings per share | $ | 5.10 |  |  | $ | 0.56 |  |  |  |  |
Diluted earnings per share | $ | 5.07 |  |  | $ | 0.55 |  |  |  |  |
Potential anti-dilutive share conversions | 1,952,612 |  |  | 3,154,406 |  |  |  |  |
Excluded from weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods.

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