REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS - Income Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
REVENUES
Policy charges and fee income	$ 3,464	$ 3,487	$ 3,515
Net derivative gains (losses)	(1,541)	(3,831)	(1,034)
Other income	57	56	64
Total Revenues	7,791	5,174	6,918
BENEFITS AND OTHER DEDUCTIONS
Policyholders’ benefits	4,951	4,088	2,960
Interest credited to policyholder's account balances	1,118	1,149	979
Commissions	636	629	625
Amortization of deferred policy acquisition costs	1,333	520	451
Other operating costs and expenses	830	912	2,919
Total benefits and other deductions	9,177	7,637	8,390
Income (loss) from continuing operations, before income taxes	(1,386)	(2,463)	(1,472)
Income tax expense (benefit) from continuing operations	627	579	456
Net income (loss)	(759)	(1,884)	(902)
Net income (loss) attributable to Equitable Financial	$ (759)	(1,889)	(899)
As Previously Reported
REVENUES
Policy charges and fee income		3,450	3,523
Net derivative gains (losses)		(3,820)	(1,010)
Other income		56	65
Total Revenues		5,148	6,951
BENEFITS AND OTHER DEDUCTIONS
Policyholders’ benefits		4,119	3,005
Interest credited to policyholder's account balances		1,127	1,002
Commissions		629	620
Amortization of deferred policy acquisition costs		452	431
Other operating costs and expenses		912	2,918
Total benefits and other deductions		7,578	8,432
Income (loss) from continuing operations, before income taxes		(2,430)	(1,481)
Income tax expense (benefit) from continuing operations		584	446
Net income (loss)		(1,846)	(921)
Net income (loss) attributable to Equitable Financial		(1,851)	(918)
Impact of Revisions
REVENUES
Policy charges and fee income		37	(8)
Net derivative gains (losses)		(11)	(24)
Other income		0	(1)
Total Revenues		26	(33)
BENEFITS AND OTHER DEDUCTIONS
Policyholders’ benefits		(31)	(45)
Interest credited to policyholder's account balances		22	(23)
Commissions		0	5
Amortization of deferred policy acquisition costs		68	20
Other operating costs and expenses		0	1
Total benefits and other deductions		59	(42)
Income (loss) from continuing operations, before income taxes		(33)	9
Income tax expense (benefit) from continuing operations		(5)	10
Net income (loss)		(38)	19
Net income (loss) attributable to Equitable Financial		$ (38)	$ 19