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Accumulated Other Comprehensive Income (Loss) by Component (Tables) | 12 Months Ended
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Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income (Loss) by Component | The tables below display the changes in Accumulated other comprehensive income (loss) by component.
(In millions) | Net unrealized gains (losses) on investments with an allowance for credit losses |  | Net unrealized gains (losses) on other investments |  | Pension and postretirement benefits |  | Cumulative impact of changes in discount rates used to measure long duration contracts |  | Cumulative foreign currency translation adjustment |  | Total
Balance as of January 1, 2024 | $ | (12) |  |  | $ | (1,613) |  |  | $ | (525) |  |  | $ | (359) |  |  | $ | (163) |  |  | $ | (2,672) |
Other comprehensive income (loss) before reclassifications | (34) |  |  | (310) |  |  | 17 |  |  | 712 |  |  | (101) |  |  | 284 |
Amounts reclassified from accumulated other comprehensive income (loss) net of tax (expense) benefit of $9, $13, $84, $—, $— and $106 | (33) |  |  | (47) |  |  | (317) |  |  | — |  |  | — |  |  | (397) |
Other comprehensive income (loss) net of tax (expense) benefit of $—, $68, $(89), $(189), $— and $(210) | (1) |  |  | (263) |  |  | 334 |  |  | 712 |  |  | (101) |  |  | 681 |
Balance as of December 31, 2024 | $ | (13) |  |  | $ | (1,876) |  |  | $ | (191) |  |  | $ | 353 |  |  | $ | (264) |  |  | $ | (1,991) |
(In millions) | Net unrealized gains (losses) on investments with an allowance for credit losses |  | Net unrealized gains (losses) on other investments |  | Pension and postretirement benefits |  | Cumulative impact of changes in discount rates used to measure long duration contracts |  | Cumulative foreign currency translation adjustment |  | Total
Balance as of January 1, 2023, as previously reported | $ | (7) |  |  | $ | (2,738) |  |  | $ | (591) |  |  | $ | — |  |  | $ | (221) |  |  | $ | (3,557) |
Cumulative effect adjustment from changes in accounting guidance, net of tax (expense) benefit of $—, $—, $—, $11, $— and $11 | — |  |  | — |  |  | — |  |  | (41) |  |  | — |  |  | (41) |
Balance as of January 1, 2023, as adjusted | (7) |  |  | (2,738) |  |  | (591) |  |  | (41) |  |  | (221) |  |  | (3,598) |
Other comprehensive income (loss) before reclassifications | (24) |  |  | 1,072 |  |  | 39 |  |  | (318) |  |  | 58 |  |  | 827 |
Amounts reclassified from accumulated other comprehensive income (loss) net of tax (expense) benefit of $5, $14, $7, $—, $— and $26 | (19) |  |  | (53) |  |  | (27) |  |  | — |  |  | — |  |  | (99) |
Other comprehensive income (loss) net of tax (expense) benefit of $1, $(304), $(17), $85, $— and $(235) | (5) |  |  | 1,125 |  |  | 66 |  |  | (318) |  |  | 58 |  |  | 926 |
Balance as of December 31, 2023 | $ | (12) |  |  | $ | (1,613) |  |  | $ | (525) |  |  | $ | (359) |  |  | $ | (163) |  |  | $ | (2,672) |
(In millions) | Net unrealized gains (losses) on investments with an allowance for credit losses |  | Net unrealized gains (losses) on other investments |  | Pension and postretirement benefits |  | Cumulative impact of changes in discount rates used to measure long duration contracts |  | Cumulative foreign currency translation adjustment |  | Total
Balance as of January 1, 2022, as previously reported | $ | (2) |  |  | $ | 1,039 |  |  | $ | (604) |  |  | $ | — |  |  | $ | (113) |  |  | $ | 320 |
Cumulative effect adjustment from changes in accounting guidance, net of tax (expense) benefit of $—, $(617), $—, $1,063, $— and $446 | — |  |  | 2,320 |  |  | — |  |  | (4,000) |  |  | — |  |  | (1,680) |
Balance as of January 1, 2022, as adjusted | (2) |  |  | 3,359 |  |  | (604) |  |  | (4,000) |  |  | (113) |  |  | (1,360) |
Other comprehensive income (loss) before reclassifications | — |  |  | (6,223) |  |  | (11) |  |  | 3,959 |  |  | (108) |  |  | (2,383) |
Amounts reclassified from accumulated other comprehensive income (loss) net of tax (expense) benefit of $(1), $21, $6, $—, $— and $26 | 5 |  |  | (126) |  |  | (24) |  |  | — |  |  | — |  |  | (145) |
Other comprehensive income (loss) net of tax (expense) benefit of $1, $1,622, $(3), $(1,052), $— and $568 | (5) |  |  | (6,097) |  |  | 13 |  |  | 3,959 |  |  | (108) |  |  | (2,238) |
Balance as of December 31, 2022 | $ | (7) |  |  | $ | (2,738) |  |  | $ | (591) |  |  | $ | (41) |  |  | $ | (221) |  |  | $ | (3,598) |
Reclassification out of Accumulated Other Comprehensive Income | Amounts reclassified from Accumulated other comprehensive income (loss) shown above are reported in Net income (loss) as follows:
Component of AOCI |  | Consolidated Statements of Operations Line Item Affected by Reclassifications
Net unrealized gains (losses) on investments with an allowance for credit losses and Net unrealized gains (losses) on other investments |  | Net investment gains (losses)
Pension and postretirement benefits |  | Other operating expenses and Insurance claims and policyholders' benefits

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