REINSURANCE - Investment Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Reinsurance Retention Policy [Line Items]
Net derivative gains (losses)	$ (321)	$ (841)
Net investment income (loss)	(19)	(14)
Income (loss) from continuing operations, before income taxes	(61)	(720)
Income tax (expense) benefit	8	701
Net income (loss) attributable to Equitable Financial	(54)	(19)
Comprehensive income (loss)	(387)	2,314
Embedded derivatives
Reinsurance Retention Policy [Line Items]
Net derivative gains (losses)	(1,554)	$ (1,574)
Funds Withheld Assets
Reinsurance Retention Policy [Line Items]
Net derivative gains (losses)	(56)
Net investment income (loss)	345
Investment gains (losses), net	(36)
Income (loss) from continuing operations, before income taxes	253
Income tax (expense) benefit	(53)
Net income (loss) attributable to Equitable Financial	200
Change in unrealized gains (losses), net of income taxes	(174)
Comprehensive income (loss)	26
Funds Withheld Assets | Freestanding derivatives
Reinsurance Retention Policy [Line Items]
Net derivative gains (losses)	899
Funds Withheld Assets | Embedded derivatives
Reinsurance Retention Policy [Line Items]
Net derivative gains (losses)	$ (955)