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Earnings per share (Tables) | 3 Months Ended
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Mar. 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):
| Three months ended March 31, |  |
| 2023 |  | 2022 |  |  |  |
Income (Numerator): |  |  |  |  |  |  |
Net income for basic and diluted EPS | $ | 2,841 |  |  | $ | 1,476 |  |  |  |  |
Shares (Denominator): |  |  |  |  |  |  |
Weighted-average shares for basic EPS | 534 |  |  | 548 |  |  |  |  |
Effect of dilutive securities | 4 |  |  | 3 |  |  |  |  |
Weighted-average shares for diluted EPS | 538 |  |  | 551 |  |  |  |  |
Basic EPS | $ | 5.32 |  |  | $ | 2.69 |  |  |  |  |
Diluted EPS | $ | 5.28 |  |  | $ | 2.68 |  |  |  |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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