Stock Compensation Plans - Stock-based Compensation Expense and Cash Activity (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Share-Based Payment Arrangement [Abstract] | |||
| Stock-based compensation expense recognized | $ 19 | $ 14 | $ 36 |
| Tax benefit | (4) | (3) | (8) |
| After-tax stock-based compensation expense | 15 | 11 | 28 |
| Cash payments to settle SARs | 0 | 0 | 0 |
| Cash received from stock option exercises | $ 3 | $ 1 | $ 26 |
| X | ||||||||||
- Definition Cash Payment To Settle Sars and Performance Share Units No definition available.
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after tax, of expense for award under share-based payment arrangement. No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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