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Earnings per share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Computation for Basic and Diluted Earnings per Share | The computations for basic and diluted EPS were as follows (in millions, except per-share data):
| Years ended December 31,
| 2023 |  | 2022 |  | 2021
Income (Numerator): |  |  |  |  |
Net income for basic and diluted EPS | $ | 6,717 |  |  | $ | 6,552 |  |  | $ | 5,893 |
Shares (Denominator): |  |  |  |  |
Weighted-average shares for basic EPS | 535 |  |  | 538 |  |  | 570 |
Effect of dilutive securities | 3 |  |  | 3 |  |  | 3 |
Weighted-average shares for diluted EPS | 538 |  |  | 541 |  |  | 573 |
Basic EPS | $ | 12.56 |  |  | $ | 12.18 |  |  | $ | 10.34 |
Diluted EPS | $ | 12.49 |  |  | $ | 12.11 |  |  | $ | 10.28 |

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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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