MARKET RISK BENEFITS - Changes in the Market Risk Benefits for Deferred Variable Annuities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Market Risk Benefit [Roll Forward]
Benefit payments			$ 13	$ 194
GMxB Core | Individual Retirement
Market Risk Benefit [Roll Forward]
Balance, beginning of year	$ 328	$ 333	578	539
Beginning balance before changes in the instrument specific credit risk	97	560	324	538
Model changes and effect of changes in cash flow assumptions	0	0	0	0
Actual market movement effect	(3)	(116)	(154)	(322)
Interest accrual	15	19	30	37
Attributed fees accrued	107	110	199	204
Benefit payments	(11)	(12)	(21)	(24)
Actual policyholder behavior different from expected behavior	6	3	9	8
Changes in future economic assumptions	(60)	(193)	(236)	(70)
Issuances	0	(1)	0	(1)
Ending balance before changes in the instrument-specific credit risk	151	370	151	370
Changes in the instrument-specific credit risk	268	(215)	268	(215)
Balance, end of year	$ 419	$ 155	$ 419	$ 155
Weighted-average age of policyholders (years)	65 years	64 years	65 years	64 years
Net amount at risk	$ 2,866	$ 3,159	$ 2,866	$ 3,159
Purchased MRB Core | Individual Retirement
Market Risk Benefit [Roll Forward]
Balance, beginning of year	(900)	0	(1,180)	0
Beginning balance before changes in the instrument specific credit risk	(992)	0	(1,266)	0
Model changes and effect of changes in cash flow assumptions	0	0	0	0
Actual market movement effect	(2)	105	145	105
Interest accrual	(5)	(9)	(9)	(9)
Attributed fees accrued	(95)	(99)	(178)	(99)
Benefit payments	11	12	21	12
Actual policyholder behavior different from expected behavior	(1)	(4)	0	(4)
Changes in future economic assumptions	53	217	256	217
Issuances	1	(1,294)	1	(1,294)
Ending balance before changes in the instrument-specific credit risk	(1,030)	(1,072)	(1,030)	(1,072)
Changes in the instrument-specific credit risk	98	1	98	1
Balance, end of year	$ (932)	$ (1,071)	$ (932)	$ (1,071)
Weighted-average age of policyholders (years)	65 years 4 months 24 days	64 years 4 months 24 days	65 years 4 months 24 days	64 years 4 months 24 days
Net amount at risk	$ 2,834	$ 3,072	$ 2,834	$ 3,072
Net GMxB Core | Individual Retirement
Market Risk Benefit [Roll Forward]
Balance, beginning of year	(572)	333	(602)	539
Beginning balance before changes in the instrument specific credit risk	(895)	560	(942)	538
Model changes and effect of changes in cash flow assumptions	0	0	0	0
Actual market movement effect	(5)	(11)	(9)	(217)
Interest accrual	10	10	21	28
Attributed fees accrued	12	11	21	105
Benefit payments	0	0	0	(12)
Actual policyholder behavior different from expected behavior	5	(1)	9	4
Changes in future economic assumptions	(7)	24	20	147
Issuances	1	(1,295)	1	(1,295)
Ending balance before changes in the instrument-specific credit risk	(879)	(702)	(879)	(702)
Changes in the instrument-specific credit risk	366	(214)	366	(214)
Balance, end of year	(513)	(916)	(513)	(916)
GMxB Legacy | Legacy Segment
Market Risk Benefit [Roll Forward]
Balance, beginning of year	11,701	14,082	13,410	14,699
Beginning balance before changes in the instrument specific credit risk	11,326	15,599	13,020	15,314
Model changes and effect of changes in cash flow assumptions	0	0	0	0
Actual market movement effect	45	(637)	(743)	(1,381)
Interest accrual	153	195	314	392
Attributed fees accrued	198	208	398	418
Benefit payments	(311)	(345)	(632)	(687)
Actual policyholder behavior different from expected behavior	0	(6)	(23)	15
Changes in future economic assumptions	(514)	(872)	(1,437)	71
Issuances	0	0	0	0
Ending balance before changes in the instrument-specific credit risk	10,897	14,142	10,897	14,142
Changes in the instrument-specific credit risk	520	(1,422)	520	(1,422)
Balance, end of year	$ 11,417	$ 12,720	$ 11,417	$ 12,720
Weighted-average age of policyholders (years)	73 years 3 months 18 days	72 years 9 months 18 days	73 years 3 months 18 days	72 years 9 months 18 days
Net amount at risk	$ 19,710	$ 22,195	$ 19,710	$ 22,195
Purchased MRB Legacy | Legacy Segment
Market Risk Benefit [Roll Forward]
Balance, beginning of year	(13,783)	(10,746)	(15,519)	(10,492)
Beginning balance before changes in the instrument specific credit risk	(13,819)	(10,648)	(15,543)	(10,438)
Model changes and effect of changes in cash flow assumptions	0	0	1	0
Actual market movement effect	(10)	585	736	978
Interest accrual	(163)	(202)	(331)	(358)
Attributed fees accrued	(146)	(155)	(300)	(238)
Benefit payments	304	338	618	523
Actual policyholder behavior different from expected behavior	(5)	(3)	8	(20)
Changes in future economic assumptions	537	822	1,509	290
Issuances	0	(6,865)	0	(6,865)
Ending balance before changes in the instrument-specific credit risk	(13,302)	(16,128)	(13,302)	(16,128)
Changes in the instrument-specific credit risk	48	(95)	48	(95)
Balance, end of year	$ (13,254)	$ (16,223)	$ (13,254)	$ (16,223)
Weighted-average age of policyholders (years)	73 years 8 months 12 days	73 years	73 years 8 months 12 days	73 years
Net amount at risk	$ 19,397	$ 21,728	$ 19,397	$ 21,728
Net GMxB Legacy | Legacy Segment
Market Risk Benefit [Roll Forward]
Balance, beginning of year	(2,082)	3,336	(2,109)	4,207
Beginning balance before changes in the instrument specific credit risk	(2,493)	4,952	(2,523)	4,876
Model changes and effect of changes in cash flow assumptions	0	0	1	0
Actual market movement effect	35	(52)	(7)	(403)
Interest accrual	(10)	(7)	(17)	34
Attributed fees accrued	52	53	98	180
Benefit payments	(7)	(7)	(14)	(164)
Actual policyholder behavior different from expected behavior	(5)	(9)	(15)	(5)
Changes in future economic assumptions	23	(50)	72	361
Issuances	0	(6,866)	0	(6,865)
Ending balance before changes in the instrument-specific credit risk	(2,405)	(1,986)	(2,405)	(1,986)
Changes in the instrument-specific credit risk	568	(1,517)	568	(1,517)
Balance, end of year	$ (1,837)	$ (3,503)	$ (1,837)	$ (3,503)