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Earnings per share (Tables) | 9 Months Ended
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Sep. 30, 2024
Earnings Per Share [Abstract] |
Schedule Of Earnings Per Share, Basic And Diluted |
| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
(in millions of U.S. dollars, except share and per share data) | 2024 |  | 2023 |  | 2024 |  | 2023
Numerator: |  |  |  |  |  |  |
Net income | $ | 2,490 |  |  | $ | 2,040 |  |  | $ | 7,000 |  |  | $ | 5,725 |
Net income (loss) attributable to noncontrolling interests | 166 |  |  | (3) |  |  | 303 |  |  | (3) |
Net income attributable to Chubb | $ | 2,324 |  |  | $ | 2,043 |  |  | $ | 6,697 |  |  | $ | 5,728 |
Denominator: |  |  |  |  |  |  |
Denominator for basic earnings per share attributable to Chubb: |  |  |  |  |  |  |
Weighted-average shares outstanding | 403,831,412 |  |  | 409,505,454 |  |  | 404,700,118 |  |  | 412,076,470 |
Denominator for diluted earnings per share attributable to Chubb: |  |  |  |  |  |  |
Share-based compensation plans | 4,047,315 |  |  | 3,100,505 |  |  | 4,191,655 |  |  | 3,288,940 |
Weighted-average shares outstanding and assumed conversions | 407,878,727 |  |  | 412,605,959 |  |  | 408,891,773 |  |  | 415,365,410 |
Basic earnings per share attributable to Chubb | $ | 5.75 |  |  | $ | 4.99 |  |  | $ | 16.55 |  |  | $ | 13.90 |
Diluted earnings per share attributable to Chubb | $ | 5.70 |  |  | $ | 4.95 |  |  | $ | 16.38 |  |  | $ | 13.79 |
Potential anti-dilutive share conversions | 1,330,590 |  |  | 2,562,206 |  |  | 1,080,371 |  |  | 2,330,821 |

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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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