POLICYHOLDER ACCOUNT BALANCES - Balances and Changes in Separate Accounts Liability (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	$ 114,853
Balance, end of the period	127,251	$ 114,853
Protection Solutions \| VUL
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	13,187	16,405	$ 14,155
Premiums and deposits	1,195	1,115	1,060
Policy charges	(562)	(538)	(503)
Surrenders and withdrawals	(558)	(408)	(449)
Benefit payments	(71)	(111)	(188)
Investment performance	2,654	(3,152)	2,455
Net transfers from (to) General Account	(24)	(124)	(125)
Other charges	0		0
Balance, end of the period	15,821	13,187	16,405
Cash surrender value	15,478	12,893	16,069
Legacy Segment \| GMxB Legacy
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	32,616	44,912	43,747
Premiums and deposits	219	240	225
Policy charges	(655)	(682)	(705)
Surrenders and withdrawals	(2,826)	(2,825)	(3,610)
Benefit payments	(728)	(702)	(818)
Investment performance	5,164	(8,322)	6,091
Net transfers from (to) General Account	4	(5)	(18)
Other charges	0		0
Balance, end of the period	33,794	32,616	44,912
Cash surrender value	33,512	32,320	44,603
Individual Retirement \| GMxB Core
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	27,772	35,288	33,754
Premiums and deposits	1,590	1,479	1,776
Policy charges	(484)	(487)	(490)
Surrenders and withdrawals	(2,603)	(2,315)	(3,250)
Benefit payments	(226)	(216)	(223)
Investment performance	3,558	(6,122)	3,573
Net transfers from (to) General Account	222	145	148
Other charges	0		0
Balance, end of the period	29,829	27,772	35,288
Cash surrender value	28,991	26,888	34,332
Individual Retirement \| EQUI-VEST Individual
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	4,161	5,583	5,051
Premiums and deposits	93	124	158
Policy charges	(2)	(2)	(5)
Surrenders and withdrawals	(428)	(328)	(421)
Benefit payments	(57)	(52)	(56)
Investment performance	817	(1,136)	859
Net transfers from (to) General Account	(6)	(28)	(58)
Other charges	4		55
Balance, end of the period	4,582	4,161	5,583
Cash surrender value	4,549	4,129	5,547
Individual Retirement \| Investment Edge
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	3,798	4,287	3,245
Premiums and deposits	844	1,035	1,048
Policy charges	0	(1)	(1)
Surrenders and withdrawals	(412)	(327)	(256)
Benefit payments	(39)	(34)	(24)
Investment performance	543	(733)	407
Net transfers from (to) General Account	(459)	(429)	(132)
Other charges	0		0
Balance, end of the period	4,275	3,798	4,287
Cash surrender value	4,188	3,704	4,199
Group Retirement \| EQUI-VEST Group
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	22,393	27,509	23,530
Premiums and deposits	2,174	2,104	2,014
Policy charges	(18)	(17)	(16)
Surrenders and withdrawals	(1,750)	(1,359)	(1,605)
Benefit payments	(55)	(60)	(63)
Investment performance	4,463	(5,481)	4,014
Net transfers from (to) General Account	(273)	(303)	(310)
Other charges	25		(55)
Balance, end of the period	26,959	22,393	27,509
Cash surrender value	26,683	22,163	27,265
Group Retirement \| Momentum
Separate Account, Liability [Roll Forward]
Balance, beginning of the period	3,885	4,975	4,424
Premiums and deposits	644	668	788
Policy charges	(21)	(20)	(22)
Surrenders and withdrawals	(820)	(753)	(892)
Benefit payments	(13)	(14)	(11)
Investment performance	725	(917)	688
Net transfers from (to) General Account	21	(54)	0
Other charges	0		0
Balance, end of the period	4,421	3,885	4,975
Cash surrender value	$ 4,414	$ 3,879	$ 4,968

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of liability for variable contract in which all or portion of contract holder's funds is allocated to specific separate account and supported by assets held in separate account.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
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