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Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Operating revenues | $ 18,342 | $ 16,027 | $ 17,963
Revenue adjustments from annuity and life insurance product features | (382) | (2,541) | 1,009
Credit loss-related adjustments | (152) | (80) | (130)
Investment gains (losses) | (483) | (959) | 20
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans | 535 | (802) | (52)
Gains (losses) on other non-financial assets - sale of subsidiaries/businesses | 582 |  |
Total revenues | 18,442 | 11,645 | 18,810
Other Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenues | 160 | (755) | 156
Revenue adjustments from annuity and life insurance product features | 0 | 0 | 0
Credit loss-related adjustments | (35) | (7) | 4
Investment gains (losses) | (231) | (90) | (31)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans | (13) | 9 | (135)
Gains (losses) on other non-financial assets - sale of subsidiaries/businesses | 582 |  |
Total revenues | 463 | (843) | (6)
Annuities | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenues | 4,896 | 3,002 | 4,482
Revenue adjustments from annuity and life insurance product features | (130) | (2,131) | 974
Credit loss-related adjustments | (71) | (14) | (10)
Investment gains (losses) | 13 | (95) | (21)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans | (6) | (30) | 84
Gains (losses) on other non-financial assets - sale of subsidiaries/businesses | 0 |  |
Total revenues | 4,702 | 732 | 5,509
Life Insurance | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenues | 6,248 | 6,907 | 6,747
Revenue adjustments from annuity and life insurance product features | (252) | (410) | 35
Credit loss-related adjustments | (10) | (54) | (124)
Investment gains (losses) | (252) | (733) | 88
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans | 554 | (781) | (1)
Gains (losses) on other non-financial assets - sale of subsidiaries/businesses | 0 |  |
Total revenues | 6,288 | 4,929 | 6,745
Group Protection | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenues | 5,717 | 5,563 | 5,304
Revenue adjustments from annuity and life insurance product features | 0 | 0 | 0
Credit loss-related adjustments | (4) | (4) | 3
Investment gains (losses) | (2) | (6) | (3)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans | 0 | 0 | 0
Gains (losses) on other non-financial assets - sale of subsidiaries/businesses | 0 |  |
Total revenues | 5,711 | 5,553 | 5,304
Retirement Plan Services | Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenues | 1,321 | 1,310 | 1,274
Revenue adjustments from annuity and life insurance product features | 0 | 0 | 0
Credit loss-related adjustments | (32) | (1) | (3)
Investment gains (losses) | (11) | (35) | (13)
Changes in the fair value of reinsurance-related embedded derivatives, trading securities and certain mortgage loans | 0 | 0 | 0
Gains (losses) on other non-financial assets - sale of subsidiaries/businesses | 0 |  |
Total revenues | $ 1,278 | $ 1,274 | $ 1,258

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