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Fair Value (Table of reconciliation for assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, Beginning, Assets | $ 2,301 | $ 2,007 | $ 2,216 | $ 2,014
Reported in Net investment gains (losses) | $ (3) | $ (3) | $ (1) | $ (7)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Net investment losses | Net investment losses | Net investment losses | Net investment losses
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] | Other comprehensive income | Other comprehensive income | Other comprehensive income | Other comprehensive income
Reported in Other comprehensive income (loss) | $ 12 | $ (19) | $ 36 | $ (37)
Total realized and unrealized investment gains (losses) | 14 | (17) | 43 | (27)
Purchases | 66 | 130 | 148 | 222
Sales | (7) | (5) | (7) | (33)
Settlements | (46) | (42) | (87) | (95)
Transfers into Level 3 | 0 | 0 | 15 | 11
Transfers out of Level 3 | 0 | 0 | 0 | (19)
Balance, Ending, Assets | 2,328 | 2,073 | 2,328 | 2,073
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Net income (loss) in the period | (1) | 0 | (1) | 2
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Other comprehensive income (loss) in the period | 12 | (19) | 36 | (39)
Corporate and other bonds |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, Beginning, Assets | 1,351 | 1,082 | 1,278 | 1,045
Reported in Net investment gains (losses) | 1 | 0 | 1 | 0
Reported in Other comprehensive income (loss) | 16 | (8) | 37 | (20)
Total realized and unrealized investment gains (losses) | 17 | (8) | 38 | (20)
Purchases | 44 | 72 | 99 | 146
Sales | 0 | 0 | 0 | 0
Settlements | (24) | (17) | (42) | (53)
Transfers into Level 3 | 0 | 0 | 15 | 11
Transfers out of Level 3 | 0 | 0 | 0 | 0
Balance, Ending, Assets | 1,388 | 1,129 | 1,388 | 1,129
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Net income (loss) in the period | 0 | 0 | 0 | 0
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Other comprehensive income (loss) in the period | 16 | (8) | 37 | (22)
States, municipalities and political subdivisions |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, Beginning, Assets | 44 | 43 | 42 | 44
Reported in Net investment gains (losses) | 0 | 0 | 0 | 0
Reported in Other comprehensive income (loss) | 0 | 0 | 2 | (1)
Total realized and unrealized investment gains (losses) | 0 | 0 | 2 | (1)
Purchases | 0 | 0 | 0 | 0
Sales | 0 | 0 | 0 | 0
Settlements | 0 | 0 | 0 | 0
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0 | 0
Balance, Ending, Assets | 44 | 43 | 44 | 43
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Net income (loss) in the period | 0 | 0 | 0 | 0
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Other comprehensive income (loss) in the period | 0 | 0 | 2 | (1)
Asset-backed |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, Beginning, Assets | 889 | 871 | 876 | 901
Reported in Net investment gains (losses) | (4) | (3) | (4) | (7)
Reported in Other comprehensive income (loss) | (4) | (11) | (3) | (16)
Total realized and unrealized investment gains (losses) | (3) | (9) | 2 | (12)
Purchases | 22 | 55 | 49 | 73
Sales | 0 | (5) | 0 | (14)
Settlements | (22) | (25) | (41) | (42)
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0 | (19)
Balance, Ending, Assets | 886 | 887 | 886 | 887
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Net income (loss) in the period | 0 | 0 | 0 | 0
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Other comprehensive income (loss) in the period | (4) | (11) | (3) | (16)
Equity securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Balance, Beginning, Assets | 17 | 11 | 20 | 24
Reported in Net investment gains (losses) | 0 | 0 | 2 | 0
Reported in Other comprehensive income (loss) | 0 | 0 | 0 | 0
Total realized and unrealized investment gains (losses) | 0 | 0 | 1 | 6
Purchases | 0 | 3 | 0 | 3
Sales | (7) | 0 | (7) | (19)
Settlements | 0 | 0 | (4) | 0
Transfers into Level 3 | 0 | 0 | 0 | 0
Transfers out of Level 3 | 0 | 0 | 0 | 0
Balance, Ending, Assets | 10 | 14 | 10 | 14
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Net income (loss) in the period | (1) | 0 | (1) | 2
Unrealized gains (losses) on Level 3 assets and liabilities recognized in Other comprehensive income (loss) in the period | 0 | 0 | 0 | 0
Reported in Net investment income |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Reported in Net investment income | 5 | 5 | 8 | 17
Reported in Net investment income | Corporate and other bonds |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Reported in Net investment income | 0 | 0 | 0 | 0
Reported in Net investment income | States, municipalities and political subdivisions |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Reported in Net investment income | 0 | 0 | 0 | 0
Reported in Net investment income | Asset-backed |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Reported in Net investment income | 5 | 5 | 9 | 11
Reported in Net investment income | Equity securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |
Reported in Net investment income | $ 0 | $ 0 | $ (1) | $ 6

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