DAC AND OTHER DEFERRED ASSETS/LIABILITIES - DAC Costs (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	$ 7,523
Balance, end of period	7,686
Retirement \| GMxB Core
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	1,587	$ 1,605
Capitalization	92	104
Amortization	(122)	(117)
Recovery of acquisition costs	0	0
Balance, end of period	1,557	1,592
Retirement \| EI
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	153	154
Capitalization	6	8
Amortization	(10)	(9)
Recovery of acquisition costs	0	0
Balance, end of period	149	153
Retirement \| IE
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	273	225
Capitalization	64	53
Amortization	(20)	(17)
Recovery of acquisition costs	0	0
Balance, end of period	317	261
Retirement \| SCS
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	2,274	1,938
Capitalization	563	495
Amortization	(304)	(245)
Recovery of acquisition costs	(67)	0
Balance, end of period	2,466	2,188
Retirement \| EG
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	789	768
Capitalization	49	47
Amortization	(38)	(34)
Recovery of acquisition costs	0	0
Balance, end of period	800	781
Retirement \| Momentum
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	79	83
Capitalization	8	7
Amortization	(11)	(11)
Recovery of acquisition costs	0	0
Balance, end of period	76	79
Corporate & Other \| Term
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	288	314
Capitalization	4	7
Amortization	(26)	(27)
Recovery of acquisition costs	(10)	0
Balance, end of period	256	294
Corporate & Other \| UL
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	167	170
Capitalization	8	10
Amortization	(9)	(9)
Recovery of acquisition costs	(4)	(2)
Balance, end of period	162	169
Corporate & Other \| VUL
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	1,143	1,083
Capitalization	90	103
Amortization	(53)	(51)
Recovery of acquisition costs	(6)	(7)
Balance, end of period	1,174	1,128
Corporate & Other \| IUL
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	181	186
Capitalization	4	8
Amortization	(9)	(9)
Recovery of acquisition costs	(1)	(2)
Balance, end of period	175	183
Corporate & Other \| GMxB Legacy
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	472	517
Capitalization	13	12
Amortization	(43)	(47)
Recovery of acquisition costs	0	0
Balance, end of period	442	482
Corporate & Other \| CB
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	98	107
Capitalization	0	0
Amortization	(6)	(7)
Recovery of acquisition costs	0	0
Balance, end of period	92	100
Corporate Segment
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Balance, beginning of period	7,504	7,150
Capitalization	901	854
Amortization	(651)	(583)
Recovery of acquisition costs	(88)	(11)
Balance, end of period	7,666	7,410
Other
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Amortization	$ 2	$ 1