POLICYHOLDER ACCOUNT BALANCES - Balances and Changes in Policyholders' Account Balances (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Policyholder Account Balance [Roll Forward]
Interest credited	$ 308	$ 312	$ 606	$ 747
Universal Life
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			5,202
Balance, end of period	5,129		5,129
Universal Life | Protection Solutions
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			5,202	5,341
Issuances			0	0
Premiums received			327	358
Policy charges			(359)	(384)
Surrenders and withdrawals			(45)	(38)
Benefit payments			(106)	(128)
Net transfers from (to) separate account			0	0
Interest credited			110	111
Other			0	0
Balance, end of period	$ 5,129	$ 5,260	$ 5,129	$ 5,260
Weighted-average crediting rate	3.80%	3.67%	3.80%	3.67%
Net amount at risk	$ 34,364	$ 36,505	$ 34,364	$ 36,505
Cash surrender value	3,393	3,463	3,393	3,463
Variable Universal Life
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			4,145
Balance, end of period	4,165		4,165
Variable Universal Life | Protection Solutions
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			4,145	4,253
Issuances			0	0
Premiums received			52	64
Policy charges			(109)	(109)
Surrenders and withdrawals			(23)	(22)
Benefit payments			(52)	(58)
Net transfers from (to) separate account			59	(89)
Interest credited			93	94
Other			0	0
Balance, end of period	$ 4,165	$ 4,133	$ 4,165	$ 4,133
Weighted-average crediting rate	3.75%	3.72%	3.75%	3.72%
Net amount at risk	$ 82,517	$ 83,438	$ 82,517	$ 83,438
Cash surrender value	2,617	2,691	2,617	2,691
GMxB Legacy
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			618
Balance, end of period	595		595
GMxB Legacy | Legacy Segment
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			618	688
Issuances			0	0
Premiums received			36	41
Policy charges			18	20
Surrenders and withdrawals			(43)	(47)
Benefit payments			(49)	(51)
Net transfers from (to) separate account			3	2
Interest credited			12	13
Other			0	0
Balance, end of period	$ 595	$ 666	$ 595	$ 666
Weighted-average crediting rate	2.74%	2.71%	2.74%	2.71%
Net amount at risk	$ 19,710	$ 22,195	$ 19,710	$ 22,195
Cash surrender value	531	630	531	630
GMxB Core | Individual Retirement
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			(5)	42
Issuances			0	0
Premiums received			23	26
Policy charges			7	8
Surrenders and withdrawals			(18)	(16)
Benefit payments			(1)	(1)
Net transfers from (to) separate account			(17)	(38)
Interest credited			3	2
Other			0	0
Balance, end of period	$ (8)	$ 23	$ (8)	$ 23
Weighted-average crediting rate	1.38%	1.32%	1.38%	1.32%
Net amount at risk	$ 2,866	$ 3,159	$ 2,866	$ 3,159
Cash surrender value	205	238	205	238
SCS
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			40,649
Balance, end of period	43,344		43,344
SCS | Individual Retirement
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			40,649	35,460
Issuances			0	0
Premiums received			8	0
Policy charges			(5)	(3)
Surrenders and withdrawals			(1,824)	(1,319)
Benefit payments			(132)	(121)
Net transfers from (to) separate account			1,009	1,591
Interest credited			3,639	4,059
Other			0	0
Balance, end of period	43,344	39,667	43,344	39,667
Net amount at risk	0	11	0	11
Cash surrender value	40,408	36,091	40,408	36,091
EQUI-VEST Individual
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			2,322
Balance, end of period	2,182		2,182
EQUI-VEST Individual | Individual Retirement
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			2,322	2,652
Issuances			0	0
Premiums received			15	19
Policy charges			0	0
Surrenders and withdrawals			(168)	(178)
Benefit payments			(27)	(40)
Net transfers from (to) separate account			7	4
Interest credited			33	38
Other			0	3
Balance, end of period	$ 2,182	$ 2,498	$ 2,182	$ 2,498
Weighted-average crediting rate	2.98%	3.04%	2.98%	3.04%
Net amount at risk	$ 104	$ 118	$ 104	$ 118
Cash surrender value	2,176	2,490	2,176	2,490
EQUI-VEST Group
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			11,563
Balance, end of period	11,369		11,369
EQUI-VEST Group | Group Retirement
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			11,563	12,046
Issuances			0	0
Premiums received			305	317
Policy charges			(3)	(3)
Surrenders and withdrawals			(806)	(820)
Benefit payments			(35)	(35)
Net transfers from (to) separate account			170	144
Interest credited			175	210
Other			0	11
Balance, end of period	$ 11,369	$ 11,870	$ 11,369	$ 11,870
Weighted-average crediting rate	2.67%	2.52%	2.67%	2.52%
Net amount at risk	$ 9	$ 24	$ 9	$ 24
Cash surrender value	11,313	11,782	11,313	11,782
Momentum
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			608
Balance, end of period	575		575
Momentum | Group Retirement
Policyholder Account Balance [Roll Forward]
Balance, beginning of period			608	703
Issuances			0	0
Premiums received			37	35
Policy charges			0	0
Surrenders and withdrawals			(69)	(71)
Benefit payments			(1)	(4)
Net transfers from (to) separate account			(7)	(12)
Interest credited			7	6
Other			0	0
Balance, end of period	$ 575	$ 657	$ 575	$ 657
Weighted-average crediting rate	2.32%	2.33%	2.32%	2.33%
Net amount at risk	$ 0	$ 0	$ 0	$ 0
Cash surrender value	$ 576	$ 657	$ 576	$ 657