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Earnings per share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule Of Earnings Per Share, Basic And Diluted |
|  |  | As Adjusted
| Year Ended December 31
(in millions of U.S. dollars, except share and per share data) | 2023 |  | 2022 |  | 2021
Numerator: |  |  |  |  |
Net income | $ | 9,015 |  |  | $ | 5,246 |  |  | $ | 8,525 |
Net loss attributable to noncontrolling interests | (13) |  |  | — |  |  | — |
Net income attributable to Chubb | $ | 9,028 |  |  | $ | 5,246 |  |  | $ | 8,525 |
Denominator: |  |  |  |  |
Denominator for basic earnings per share attributable to Chubb: |  |  |  |  |
Weighted-average shares outstanding | 410,845,263 |  |  | 419,779,847 |  |  | 439,968,422 |
Denominator for diluted earnings per share attributable to Chubb: |  |  |  |  |
Share-based compensation plans | 3,357,305 |  |  | 3,747,597 |  |  | 3,228,856 |
Weighted-average shares outstanding and assumed conversions | 414,202,568 |  |  | 423,527,444 |  |  | 443,197,278 |
Basic earnings per share attributable to Chubb | $ | 21.97 |  |  | $ | 12.50 |  |  | $ | 19.38 |
Diluted earnings per share attributable to Chubb | $ | 21.80 |  |  | $ | 12.39 |  |  | $ | 19.24 |
Potential anti-dilutive share conversions | 2,385,099 |  |  | 1,467,840 |  |  | 1,532,066 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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