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MARKET RISK BENEFITS - Changes in the Market Risk Benefits for Deferred Variable Annuities (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2019
Market Risk Benefit [Roll Forward]      
Balance, beginning of the period $ 50 $ 0  
Balance, end of the period 1,249 50  
Changes in the instrument-specific credit risk 668 (912) $ 23,784
GMxB Core      
Market Risk Benefit [Roll Forward]      
Net amount at risk 3,530 1,115  
GMxB Legacy      
Market Risk Benefit [Roll Forward]      
Net amount at risk 22,631 15,901  
Purchased MRB      
Market Risk Benefit [Roll Forward]      
Net amount at risk 10,766 6,341  
Individual Retirement | GMxB Core      
Market Risk Benefit [Roll Forward]      
Balance, beginning of the period 1,061 2,143  
Balance BOP before changes in the instrument specific credit risk 666 1,639  
Balance EOP before changes in the instrument-specific credit risk 529 666  
Balance, end of the period $ 530 $ 1,061  
Weighted-average crediting rate 63 years 6 months 62 years 7 months 6 days  
Net amount at risk $ 530 $ 1,061  
Model changes and effect of changes in cash flow assumptions (5) (280)  
Actual market movement effect 1,074 (665)  
Interest accrual 37 7  
Attributed fees accrued 399 386  
Market Risk Benefit, Benefit Payment (37) (14)  
Actual policyholder behavior different from expected behavior 24 (9)  
Changes in future economic assumptions (1,626) (397)  
Issuances (3) (1)  
Changes in the instrument-specific credit risk 1 395 $ 2,144
Legacy | GMxB Legacy      
Market Risk Benefit [Roll Forward]      
Balance, beginning of the period 20,236 24,405  
Balance BOP before changes in the instrument specific credit risk 19,719 23,944  
Balance EOP before changes in the instrument-specific credit risk 15,314 19,719  
Balance, end of the period $ 14,699 $ 20,236  
Weighted-average crediting rate 72 years 7 months 6 days 72 years  
Net amount at risk $ 4,287 $ 6,177  
Model changes and effect of changes in cash flow assumptions 317 (196)  
Actual market movement effect 3,402 (3,026)  
Interest accrual 731 197  
Attributed fees accrued 882 918  
Market Risk Benefit, Benefit Payment (1,179) (902)  
Actual policyholder behavior different from expected behavior 142 135  
Changes in future economic assumptions (8,700) (1,351)  
Issuances 0 0  
Changes in the instrument-specific credit risk (615) 517  
Legacy | Purchased MRB      
Market Risk Benefit [Roll Forward]      
Balance, beginning of the period (14,059) (2,763)  
Balance BOP before changes in the instrument specific credit risk (14,051) (2,766)  
Balance EOP before changes in the instrument-specific credit risk (10,358) (14,051)  
Balance, end of the period $ (10,415) $ (14,059)  
Weighted-average crediting rate 67 years 6 months 66 years 10 months 24 days  
Model changes and effect of changes in cash flow assumptions $ (143) $ 36  
Actual market movement effect (1,226) 799  
Interest accrual (489) (122)  
Attributed fees accrued (295) (194)  
Market Risk Benefit, Benefit Payment 669 350  
Actual policyholder behavior different from expected behavior (102) (56)  
Changes in future economic assumptions 5,279 (950)  
Issuances 0 (11,148)  
Changes in the instrument-specific credit risk (57) (8)  
Legacy | Net Legacy      
Market Risk Benefit [Roll Forward]      
Balance, beginning of the period 6,177 21,642  
Balance BOP before changes in the instrument specific credit risk 5,668 21,178  
Balance EOP before changes in the instrument-specific credit risk 4,956 5,668  
Balance, end of the period 4,284 6,177  
Model changes and effect of changes in cash flow assumptions 174 (160)  
Actual market movement effect 2,176 (2,227)  
Interest accrual 242 75  
Attributed fees accrued 587 724  
Market Risk Benefit, Benefit Payment (510) (552)  
Actual policyholder behavior different from expected behavior 40 79  
Changes in future economic assumptions (3,421) (2,301)  
Issuances 0 (11,148)  
Changes in the instrument-specific credit risk $ (672) $ 509