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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2025
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
| Second Quarter
| 2025 |  | 2024 |  | 2025 |  | 2024
| ($ in millions, except per share amounts, shares in millions)
Net income | $ | 768 |  |  | $ | 737 |  |  | $ | 768 |  |  | $ | 737 |
Dividend equivalent payments | (1) |  |  | (1) |  |  | — |  |  | (1) |
Income available to common stockholders | $ | 767 |  |  | $ | 736 |  |  | $ | 768 |  |  | $ | 736 |
Weighted-average shares outstanding | 225.0 |  |  | 226.0 |  |  | 225.0 |  |  | 226.0 |
Dilutive effect of outstanding options and share-settled awards |  |  |  |  | 0.2 |  |  | 0.4 |
Adjusted weighted-average shares outstanding |  |  |  |  | 225.2 |  |  | 226.4 |
Earnings per share | $ | 3.41 |  |  | $ | 3.26 |  |  | $ | 3.41 |  |  | $ | 3.25 |
| Basic |  | Diluted
| First Six Months
| 2025 |  | 2024 |  | 2025 |  | 2024
| ($ in millions, except per share amounts, shares in millions)
Net income | $ | 1,518 |  |  | $ | 790 |  |  | $ | 1,518 |  |  | $ | 790 |
Dividend equivalent payments | (2) |  |  | (2) |  |  | (1) |  |  | (2) |
Income available to common stockholders | $ | 1,516 |  |  | $ | 788 |  |  | $ | 1,517 |  |  | $ | 788 |
Weighted-average shares outstanding | 225.5 |  |  | 225.9 |  |  | 225.5 |  |  | 225.9 |
Dilutive effect of outstanding options and share-settled awards |  |  |  |  | 0.3 |  |  | 0.4 |
Adjusted weighted-average shares outstanding |  |  |  |  | 225.8 |  |  | 226.3 |
Earnings per share | $ | 6.72 |  |  | $ | 3.49 |  |  | $ | 6.72 |  |  | $ | 3.48 |

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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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