Principles of Consolidation and Other Matters (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||||
| Operating funds related to regulatory requirements or as collateral under captive insurance arrangements | $ 622 | $ 622 | $ 553 | ||
| Equity method investments lag period (in months) | 3 months | ||||
| Net investment income | $ 8 | $ 15 | $ 9 | $ 27 | |
| Effective tax rate (as a percent) | 21.30% | 25.10% | 23.80% | 24.20% | |
| Effective income tax rate reconciliation, other reconciling items (as a percent) | 2.80% | 0.70% | |||
| Share-based payments of excess tax benefit (as a percent) | 0.30% | 1.00% | |||
| Unrecognized tax benefits | $ 117 | $ 117 | $ 109 | ||
| X | ||||||||||
- Definition Equity Method Investment, Lag Period No definition available.
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of reported income tax benefit (expense) from difference to income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to other reconciling items. Excludes state and local income tax expense (benefit), federal tax expense (benefit), statutory income tax expense (benefit) outside of country of domicile, tax credit, nondeductible expense, deduction, income tax settlement, income tax contingency, and cross-border tax law. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of realized and unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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