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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2023
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share Calculation | The following table sets forth the calculation of basic and diluted earnings per share:
| Basic |  | Diluted
| Third Quarter
| 2023 |  | 2022 |  | 2023 |  | 2022
| ($ in millions, except per share amounts, shares in millions)
Net income | $ | 478 |  |  | $ | 958 |  |  | $ | 478 |  |  | $ | 958 |
Dividend equivalent payments | (1) |  |  | — |  |  | (1) |  |  | — |
Income available to common stockholders | $ | 477 |  |  | $ | 958 |  |  | $ | 477 |  |  | $ | 958 |
Weighted-average shares outstanding | 226.4 |  |  | 233.2 |  |  | 226.4 |  |  | 233.2 |
Dilutive effect of outstanding options and share-settled awards |  |  |  |  | 0.6 |  |  | 0.8 |
Adjusted weighted-average shares outstanding |  |  |  |  | 227.0 |  |  | 234.0 |
Earnings per share | $ | 2.11 |  |  | $ | 4.11 |  |  | $ | 2.10 |  |  | $ | 4.10 |
| Basic |  | Diluted
| First Nine Months
| 2023 |  | 2022 |  | 2023 |  | 2022
| ($ in millions, except per share amounts, shares in millions)
Net income | $ | 1,300 |  |  | $ | 2,480 |  |  | $ | 1,300 |  |  | $ | 2,480 |
Dividend equivalent payments | (2) |  |  | (1) |  |  | (2) |  |  | (1) |
Income available to common stockholders | $ | 1,298 |  |  | $ | 2,479 |  |  | $ | 1,298 |  |  | $ | 2,479 |
Weighted-average shares outstanding | 227.2 |  |  | 236.4 |  |  | 227.2 |  |  | 236.4 |
Dilutive effect of outstanding options and share-settled awards |  |  |  |  | 0.6 |  |  | 0.8 |
Adjusted weighted-average shares outstanding |  |  |  |  | 227.8 |  |  | 237.2 |
Earnings per share | $ | 5.71 |  |  | $ | 10.49 |  |  | $ | 5.70 |  |  | $ | 10.45 |

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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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