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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-Based Compensation Expense and Related Tax Benefits |
|  | Second Quarter |  | First Six Months
|  | 2025 |  | 2024 |  | 2025 |  | 2024
|  | ($ in millions)
Stock-based compensation expense |  | $ | 17 |  |  | $ | 13 |  |  | $ | 35 |  |  | $ | 32 |
Total tax benefit |  | 3 |  |  | 3 |  |  | 8 |  |  | 8 |
Schedule of Long-Term Incentive Plan Awards | During 2025, we granted stock options, restricted stock units (RSUs) and performance share units (PSUs) pursuant to the Long-Term Incentive Plan (LTIP), as follows:
|  | Second Quarter |  | First Six Months
|  | Granted |  | Weighted-Average Grant-Date Fair Value |  | Granted |  | Weighted-Average Grant-Date Fair Value
Stock options |  | — |  |  | $ | — |  |  | 80,067 |  |  | $ | 87.33 |
RSUs |  | 3,204 |  |  | 220.12 |  |  | 193,338 |  |  | 254.74 |
PSUs |  | — |  |  | — |  |  | 66,334 |  |  | 296.55 |
Summary of Stock Options, Restricted Stock Units, and Performance Share Units |
|  | Second Quarter |  | First Six Months
|  | 2025 |  | 2024 |  | 2025 |  | 2024
|  | ($ in millions)
Options exercised |  | 26,352 |  | 17,757 |  |  | 68,904 |  |  | 114,974 |
Cash received upon exercise |  | $ | 2 |  |  | $ | 2 |  |  | $ | 6 |  |  | $ | 11 |
Related tax benefits realized |  | 1 |  |  | — |  |  | 2 |  |  | 3 |
|  | Second Quarter |  | First Six Months
|  | 2025 |  | 2024 |  | 2025 |  | 2024
|  | ($ in millions)
RSUs vested |  | 10,454 |  |  | 12,494 |  |  | 163,218 |  |  | 169,145 |
Common Stock issued net of tax withholding |  | 6,225 |  |  | 9,016 |  |  | 113,482 |  |  | 117,266 |
Related tax benefits realized |  | $ | — |  |  | $ | — |  |  | $ | 1 |  |  | $ | — |
|  | First Six Months
|  | 2025 |  | 2024
|  | ($ in millions)
PSUs earned |  | 8,540 |  |  | 41,580 |
Common Stock issued net of tax withholding |  | 5,633 |  |  | 26,056 |
Related tax benefits realized |  | $ | — |  |  | $ | — |

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- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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