MARKET RISK BENEFITS - Changes in the Market Risk Benefits for Deferred Variable Annuities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2020
Market Risk Benefit [Roll Forward]
Benefit payments	$ (172)	$ (122)
Market risk benefits				$ 23,416
Balance, end of the period	(109)	257
GMxB Core
Market Risk Benefit [Roll Forward]
Net amount at risk	3,278	1,785
GMxB Core | Individual Retirement
Market Risk Benefit [Roll Forward]
Balance, beginning of the period	539	1,061
Balance BOP before changes in the instrument specific credit risk	538	666
Model changes and effect of changes in cash flow assumptions	0	0
Actual market movement effect	(206)	324
Interest accrual	18	5
Attributed fees accrued	94	92
Benefit payments	(12)	5
Actual policyholder behavior different from expected behavior	5	0
Changes in future economic assumptions	123	(535)
Issuances	0	(3)
Balance EOP before changes in the instrument-specific credit risk	560	544
Market risk benefits	(227)	(37)		2,144
Balance, end of the period	$ 333	$ 507
Weighted-average age of policyholders (years)	63 years 9 months 18 days	62 years 9 months 18 days
Net amount at risk	$ 333		$ 539
GMxB Legacy
Market Risk Benefit [Roll Forward]
Net amount at risk	21,472	$ 17,987
GMxB Legacy | Legacy Segment
Market Risk Benefit [Roll Forward]
Balance, beginning of the period	14,699	20,235
Balance BOP before changes in the instrument specific credit risk	15,314	19,718
Model changes and effect of changes in cash flow assumptions	0	(88)
Actual market movement effect	(744)	1,098
Interest accrual	197	104
Attributed fees accrued	210	219
Benefit payments	342	251
Actual policyholder behavior different from expected behavior	21	33
Changes in future economic assumptions	943	(2,934)
Issuances	0	0
Balance EOP before changes in the instrument-specific credit risk	15,599	17,899
Market risk benefits	(1,517)	(970)		24,404
Balance, end of the period	$ 14,082	$ 16,929
Weighted-average age of policyholders (years)	72 years 9 months 18 days	72 years 2 months 12 days
Purchased MRB
Market Risk Benefit [Roll Forward]
Net amount at risk	$ 10,036	$ 7,655
Purchased MRB | Legacy Segment
Market Risk Benefit [Roll Forward]
Balance, beginning of the period	(10,493)	(14,293)
Balance BOP before changes in the instrument specific credit risk	(10,439)	(14,287)
Model changes and effect of changes in cash flow assumptions	0	29
Actual market movement effect	393	(414)
Interest accrual	(155)	(62)
Attributed fees accrued	(83)	(86)
Benefit payments	(185)	(136)
Actual policyholder behavior different from expected behavior	(17)	(14)
Changes in future economic assumptions	(532)	2,083
Issuances	0	0
Balance EOP before changes in the instrument-specific credit risk	(10,648)	(12,616)
Market risk benefits	(98)	(64)		$ (3,132)
Balance, end of the period	$ (10,746)	$ (12,680)
Weighted-average age of policyholders (years)	67 years 8 months 12 days	67 years 1 month 6 days
Net Legacy | Legacy Segment
Market Risk Benefit [Roll Forward]
Balance, beginning of the period	$ 4,206	$ 5,942
Balance BOP before changes in the instrument specific credit risk	4,875	5,431
Model changes and effect of changes in cash flow assumptions	0	(59)
Actual market movement effect	(351)	684
Interest accrual	42	42
Attributed fees accrued	126	133
Benefit payments	157	116
Actual policyholder behavior different from expected behavior	4	18
Changes in future economic assumptions	412	(851)
Issuances	0	0
Balance EOP before changes in the instrument-specific credit risk	4,952	5,283
Market risk benefits	(1,616)	(1,035)
Balance, end of the period	$ 3,336	$ 4,248