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Accumulated Other Comprehensive Income (AOCI) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
AOCI, Net of Tax |  |
AOCI, net of tax, beginning balance | $ 13,935 |
AOCI, net of tax, ending balance | 13,718 | $ 12,654
AOCI on Net Unrecognized Investment Gain (Loss) |  |
AOCI, Before Tax |  |
AOCI, before tax, beginning of period | (553) | (570)
Other comprehensive income before reclassification, before tax | 65 | (65)
Reclassification adjustment, before tax | 2 | 10
Effect on other comprehensive income, before tax | 67 | (55)
AOCI, before tax, end of period | (486) | (625)
AOCI, Tax |  |
AOCI, tax, beginning of period | (119) | (123)
Other comprehensive income before reclassification, tax | 14 | (13)
Reclassification adjustment, tax | 0 | 2
Effect on other comprehensive income, tax | 14 | (11)
AOCI, tax, end of period | (105) | (134)
AOCI, Net of Tax |  |
AOCI, net of tax, beginning balance | (434) | (447)
Other comprehensive income before reclassification, net of tax | 51 | (52)
Reclassification adjustment, net of tax | 2 | 8
Effect on other comprehensive income, net of tax | 53 | (44)
AOCI, net of tax, ending balance | (381) | (491)
AOCI on Pension Obligations |  |
AOCI, Before Tax |  |
AOCI, before tax, beginning of period | 75 | 30
Other comprehensive income before reclassification, before tax | 0 | 0
Reclassification adjustment, before tax | (1) | 0
Effect on other comprehensive income, before tax | (1) | 0
AOCI, before tax, end of period | 74 | 30
AOCI, Tax |  |
AOCI, tax, beginning of period | 17 | 8
Other comprehensive income before reclassification, tax | 0 | 0
Reclassification adjustment, tax | 0 | 0
Effect on other comprehensive income, tax | 0 | 0
AOCI, tax, end of period | 17 | 8
AOCI, Net of Tax |  |
AOCI, net of tax, beginning balance | 58 | 22
Other comprehensive income before reclassification, net of tax | 0 | 0
Reclassification adjustment, net of tax | (1) | 0
Effect on other comprehensive income, net of tax | (1) | 0
AOCI, net of tax, ending balance | 57 | 22
AOCI on Life Policy Reserves, Reinsurance Recoverable And Other |  |
AOCI, Before Tax |  |
AOCI, before tax, beginning of period | 85 | (13)
Other comprehensive income before reclassification, before tax | (17) | 47
Reclassification adjustment, before tax | 0 | 0
Effect on other comprehensive income, before tax | (17) | 47
AOCI, before tax, end of period | 68 | 34
AOCI, Tax |  |
AOCI, tax, beginning of period | 18 | (3)
Other comprehensive income before reclassification, tax | (3) | 10
Reclassification adjustment, tax | 0 | 0
Effect on other comprehensive income, tax | (3) | 10
AOCI, tax, end of period | 15 | 7
AOCI, Net of Tax |  |
AOCI, net of tax, beginning balance | 67 | (10)
Other comprehensive income before reclassification, net of tax | (14) | 37
Reclassification adjustment, net of tax | 0 | 0
Effect on other comprehensive income, net of tax | (14) | 37
AOCI, net of tax, ending balance | 53 | 27
Summary of AOCI |  |
AOCI, Before Tax |  |
AOCI, before tax, beginning of period | (393) | (553)
Change in unrealized gains, net, on investments available for sale, before tax | 67 | (55)
Change in pension obligations, before tax | (1) | 0
Change in life policy reserves, reinsurance recoverable and other, before tax | (17) | 47
Effect on other comprehensive income, before tax | 49 | (8)
AOCI, before tax, end of period | (344) | (561)
AOCI, Tax |  |
AOCI, tax, beginning of period | (84) | (118)
Change in unrealized gains, net, on investments available for sale, tax | 14 | (11)
Change in pension obligations, tax | 0 | 0
Change in Life Policy Reserves, Reinsurance Recoverable and Other, Tax | (3) | 10
Effect on other comprehensive income, tax | 11 | (1)
AOCI, tax, end of period | (73) | (119)
AOCI, Net of Tax |  |
AOCI, net of tax, beginning balance | (309) | (435)
Change in unrealized gains, net, on investments available for sale, net of tax | 53 | (44)
Change in pension obligations, net of tax | (1) | 0
Change in Life Policy Reserves, Reinsurance Recoverable and Other, Net of Tax | (14) | 37
Effect on other comprehensive income, net of tax | 38 | (7)
AOCI, net of tax, ending balance | $ (271) | $ (442)

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