POLICYHOLDER ACCOUNT BALANCES - Balances and Changes in Policyholders' Account Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Universal Life
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	$ 5,202	$ 5,341
Issuances	0	0
Premiums received	647	698
Policy charges	(712)	(761)
Surrenders and withdrawals	(79)	(79)
Benefit payments	(213)	(219)
Net transfers from (to) separate account	0	0
Interest credited	220	222
Other	0	0
Balance, end of period	$ 5,065	$ 5,202
Weighted-average crediting rate	3.82%	3.77%
Net amount at risk	$ 33,324	$ 35,490
Cash surrender value	3,368	3,423
Variable Universal Life
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	4,145	4,253
Issuances	0	0
Premiums received	99	114
Policy charges	(222)	(217)
Surrenders and withdrawals	(28)	(44)
Benefit payments	(63)	(112)
Net transfers from (to) separate account	140	(33)
Interest credited	187	184
Other	0	0
Balance, end of period	$ 4,258	$ 4,145
Weighted-average crediting rate	3.72%	3.75%
Net amount at risk	$ 82,552	$ 83,050
Cash surrender value	2,607	2,644
GMxB Legacy
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	293	382
Issuances	0	0
Premiums received	4	10
Policy charges	14	9
Surrenders and withdrawals	(86)	(96)
Benefit payments	(17)	(26)
Net transfers from (to) separate account	4	(4)
Interest credited	14	18
Other	0	0
Balance, end of period	$ 226	$ 293
Weighted-average crediting rate	2.74%	2.71%
Net amount at risk	$ 19,041	$ 21,136
Cash surrender value	489	572
GMxB Core
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	(5)	42
Issuances	0	0
Premiums received	43	43
Policy charges	10	3
Surrenders and withdrawals	(35)	(33)
Benefit payments	(2)	(2)
Net transfers from (to) separate account	(40)	(62)
Interest credited	5	4
Other	0	0
Balance, end of period	$ (24)	$ (5)
Weighted-average crediting rate	1.38%	1.29%
Net amount at risk	$ 2,865	$ 2,991
Cash surrender value	187	216
SCS
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	40,649	35,460
Issuances	0	0
Premiums received	12	9
Policy charges	(10)	(8)
Surrenders and withdrawals	(3,889)	(2,853)
Benefit payments	(271)	(249)
Net transfers from (to) separate account	1,726	2,569
Interest credited	5,855	5,721
Other	0	0
Balance, end of period	44,072	40,649
Net amount at risk	0	1
Cash surrender value	41,262	37,816
EQUI-VEST Individual
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	2,322	2,652
Issuances	0	0
Premiums received	37	37
Policy charges	0	0
Surrenders and withdrawals	(347)	(378)
Benefit payments	(54)	(70)
Net transfers from (to) separate account	15	6
Interest credited	64	72
Other	0	3
Balance, end of period	$ 2,037	$ 2,322
Weighted-average crediting rate	2.98%	2.84%
Net amount at risk	$ 101	$ 109
Cash surrender value	2,030	2,315
EQUI-VEST Group
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	11,563	12,046
Issuances	0	0
Premiums received	591	626
Policy charges	(5)	(4)
Surrenders and withdrawals	(1,603)	(1,704)
Benefit payments	(74)	(71)
Net transfers from (to) separate account	309	272
Interest credited	337	387
Other	0	11
Balance, end of period	$ 11,118	$ 11,563
Weighted-average crediting rate	2.69%	2.66%
Net amount at risk	$ 9	$ 10
Cash surrender value	11,071	11,506
Momentum
Policyholder Account Balance [Roll Forward]
Balance, beginning of period	608	703
Issuances	0	0
Premiums received	67	70
Policy charges	0	(1)
Surrenders and withdrawals	(148)	(153)
Benefit payments	(2)	(4)
Net transfers from (to) separate account	(11)	(21)
Interest credited	13	14
Other	0	0
Balance, end of period	$ 527	$ 608
Weighted-average crediting rate	2.48%	2.33%
Net amount at risk	$ 0	$ 0
Cash surrender value	$ 528	$ 609