REINSURANCE - Effect of Reinsurance (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Reinsurance Disclosures [Abstract]
Direct charges and fee income	$ 681	$ 683	$ 2,033	$ 2,117
Reinsurance assumed	4	5	8	8
Reinsurance ceded - Equitable America	(340)	0	(685)	0
Reinsurance ceded - third party	(152)	(139)	(456)	(423)
Policy charges and fee income	193	549	900	1,702
Direct premiums	199	194	607	572
Reinsurance assumed	40	51	136	138
Reinsurance ceded - Equitable America	(78)	0	(118)	0
Reinsurance ceded - third party	(59)	(52)	(170)	(162)
Premiums	102	193	455	548
Direct policyholders’ benefits	673	674	2,122	2,046
Reinsurance assumed	29	46	106	151
Reinsurance ceded - Equitable America	(146)	0	(410)	0
Reinsurance ceded - third party	(138)	(197)	(447)	(469)
Policyholders’ benefits	418	523	1,371	1,728
Direct Interest credited to policyholders’ account balances	505	352	1,458	944
Reinsurance assumed	0	0	0	0
Reinsurance ceded - Equitable America	(155)	0	(306)	0
Reinsurance ceded - third party	(27)	0	(82)	(17)
Interest credited to policyholders’ account balances	$ 323	$ 352	$ 1,070	$ 927