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Adoption of ASU 2018-12 (Summary of Restated Consolidated Statements of Comprehensive Income (Loss)) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Fee income | $ 1,365 | $ 1,409 | $ 2,744 | $ 2,867
Realized gain (loss) | (1,784) | 1,101 | (2,612) | 1,282
Total revenues | 2,929 | 5,577 | 6,743 | 10,297
Benefits | 2,192 | 1,954 | 4,483 | 4,110
Interest credited | 808 | 710 | 1,593 | 1,407
Market risk benefit (gain) loss | (2,023) | 477 | (1,404) | (881)
Policyholder liability remeasurement (gain) loss | (110) | 85 | (228) | 126
Commissions and other expenses | 1,335 | 1,207 | 2,637 | 2,460
Total expenses | 2,327 | 4,545 | 7,311 | 7,431
Income (loss) before taxes | 602 | 1,032 | (568) | 2,866
Federal income tax expense (benefit) | 91 | 192 | (198) | 545
Net income (loss) | 511 | 840 | (370) | 2,321
Unrealized investment gain (loss) | (513) | (6,655) | 1,261 | (14,153)
Market risk benefit non-performance risk gain (loss) | (924) | 354 | 101 | 374
Policyholder liability discount rate remeasurement gain (loss) | 112 | 710 | (90) | 1,521
Total other comprehensive income (loss), net of tax | (1,350) | (5,595) | 1,248 | (12,264)
Comprehensive income (loss) | $ (839) | $ (4,755) | $ 878 | $ (9,943)
Net Income (Loss) Per Common Share |  |  |  |
Basic (in dollars per share) | $ 2.95 | $ 4.91 | $ (2.40) | $ 13.44
Diluted (in dollars per share) | $ 2.94 | $ 4.83 | $ (2.41) | $ 13.25
Accounting Standards Update 2018-12 [Member] |  |  |  |
Fee income |  | $ 1,409 |  |
Realized gain (loss) |  | 1,101 |  |
Total revenues |  | 5,577 |  |
Benefits |  | 1,954 |  |
Interest credited |  | 710 |  |
Market risk benefit (gain) loss |  | 477 |  |
Policyholder liability remeasurement (gain) loss |  | 85 |  |
Commissions and other expenses |  | 1,207 |  |
Total expenses |  | 4,545 |  |
Income (loss) before taxes |  | 1,032 |  |
Federal income tax expense (benefit) |  | 192 |  |
Net income (loss) |  | 840 |  |
Unrealized investment gain (loss) |  | (6,655) |  |
Market risk benefit non-performance risk gain (loss) |  | 354 |  |
Policyholder liability discount rate remeasurement gain (loss) |  | 710 |  |
Total other comprehensive income (loss), net of tax |  | (5,595) |  |
Comprehensive income (loss) |  | $ (4,755) |  |
Net Income (Loss) Per Common Share |  |  |  |
Basic (in dollars per share) |  | $ 4.91 |  |
Diluted (in dollars per share) |  | $ 4.83 |  |
Accounting Standards Update 2018-12 [Member] | As Previously Reported [Member] |  |  |  |
Fee income |  | $ 1,506 |  | $ 3,074
Realized gain (loss) |  | 515 |  | 540
Total revenues |  | 5,088 |  | 9,762
Benefits |  | 2,890 |  | 5,458
Interest credited |  | 706 |  | 1,403
Commissions and other expenses |  | 1,123 |  | 2,358
Total expenses |  | 4,831 |  | 9,428
Income (loss) before taxes |  | 257 |  | 334
Federal income tax expense (benefit) |  | 29 |  | 15
Net income (loss) |  | 228 |  | 319
Unrealized investment gain (loss) |  | (5,585) |  | (10,772)
Total other comprehensive income (loss), net of tax |  | (5,589) |  | (10,778)
Comprehensive income (loss) |  | $ (5,361) |  | $ (10,458)
Net Income (Loss) Per Common Share |  |  |  |
Basic (in dollars per share) |  | $ 1.34 |  | $ 1.87
Diluted (in dollars per share) |  | $ 1.28 |  | $ 1.80
Accounting Standards Update 2018-12 [Member] | Restatement Impacts [Member] |  |  |  |
Fee income |  | $ (97) |  | $ (207)
Realized gain (loss) |  | 586 |  | 742
Total revenues |  | 489 |  | 535
Benefits |  | (936) |  | (1,348)
Interest credited |  | 4 |  | 4
Market risk benefit (gain) loss |  | 477 |  | (881)
Policyholder liability remeasurement (gain) loss |  | 85 |  | 126
Commissions and other expenses |  | 84 |  | 102
Total expenses |  | (286) |  | (1,997)
Income (loss) before taxes |  | 775 |  | 2,532
Federal income tax expense (benefit) |  | 163 |  | 530
Net income (loss) |  | 612 |  | 2,002
Unrealized investment gain (loss) |  | (1,070) |  | (3,381)
Market risk benefit non-performance risk gain (loss) |  | 354 |  | 374
Policyholder liability discount rate remeasurement gain (loss) |  | 710 |  | 1,521
Total other comprehensive income (loss), net of tax |  | (6) |  | (1,486)
Comprehensive income (loss) |  | $ 606 |  | $ 515
Net Income (Loss) Per Common Share |  |  |  |
Basic (in dollars per share) |  | $ 3.57 |  | $ 11.57
Diluted (in dollars per share) |  | $ 3.55 |  | $ 11.45

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