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Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) on a Pre-Tax and After-Tax Basis (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Pre-tax |  |  |  |
Other comprehensive income (loss) | $ 1,642 | $ (839) | $ 1,226 | $ (227)
Tax |  |  |  |
Other comprehensive income (loss) | (365) | 183 | (275) | 49
After-tax |  |  |  |
Other comprehensive income (loss), after-tax | 1,277 | (656) | 951 | (178)
Unrealized net capital gains and losses |  |  |  |
Pre-tax |  |  |  |
Unrealized net holding gains and losses arising during the period, net of related offsets | 1,753 | (974) | 1,118 | (717)
Less: reclassification adjustment of realized capital gains and losses | 83 | (121) | (126) | (390)
Other comprehensive income (loss) | 1,670 | (853) | 1,244 | (327)
Tax |  |  |  |
Unrealized net holding gains and losses arising during the period, net of related offsets | (388) | 210 | (253) | 152
Less: reclassification adjustment of realized capital gains and losses | (17) | 24 | 26 | 82
Other comprehensive income (loss) | (371) | 186 | (279) | 70
After-tax |  |  |  |
Unrealized net holding gains and losses arising during the period, net of related offsets | 1,365 | (764) | 865 | (565)
Less: reclassification adjustment of realized capital gains and losses | 66 | (97) | (100) | (308)
Other comprehensive income (loss), after-tax | 1,299 | (667) | 965 | (257)
Unrealized foreign currency translation adjustments |  |  |  |
Pre-tax |  |  |  |
Other comprehensive income (loss) | 18 | (18) | (1) | 81
Tax |  |  |  |
Other comprehensive income (loss) | (4) | 4 | 0 | (17)
After-tax |  |  |  |
Other comprehensive income (loss), after-tax | 14 | (14) | (1) | 64
Unamortized pension and other postretirement prior service credit |  |  |  |
Pre-tax |  |  |  |
Other comprehensive income (loss) | 0 | (6) | (2) | (18)
Tax |  |  |  |
Other comprehensive income (loss) | 0 | 1 | 1 | 4
After-tax |  |  |  |
Other comprehensive income (loss), after-tax | 0 | (5) | (1) | (14)
Discount rate for reserve for future policy benefits |  |  |  |
Pre-tax |  |  |  |
Other comprehensive income (loss) | (46) | 38 | (15) | 37
Tax |  |  |  |
Other comprehensive income (loss) | 10 | (8) | 3 | (8)
After-tax |  |  |  |
Other comprehensive income (loss), after-tax | $ (36) | $ 30 | $ (12) | $ 29

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