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Fair Value Measurements - Fair Value of Life Policy Loans, Deferred Annuities, and Structured Settlements (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Fair value of life policy loans | $ 42 | $ 41
Liabilities Related to Investment Contracts, Fair Value Disclosure | 666 | 688
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Fair value of life policy loans | 0 | 0
Liabilities Related to Investment Contracts, Fair Value Disclosure | 0 | 0
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Fair value of life policy loans | 0 | 0
Liabilities Related to Investment Contracts, Fair Value Disclosure | 125 | 127
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Fair value of life policy loans | 42 | 41
Liabilities Related to Investment Contracts, Fair Value Disclosure | 541 | 561
Deferred annuities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 541 | 561
Deferred annuities | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 0 | 0
Deferred annuities | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 0 | 0
Deferred annuities | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 541 | 561
Structured settlements |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 125 | 127
Structured settlements | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 0 | 0
Structured settlements | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | 125 | 127
Structured settlements | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis |  |
Liabilities Related to Investment Contracts, Fair Value Disclosure | $ 0 | $ 0

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