RELATED PARTY TRANSACTIONS - Revenues and Expenses Transactions (Details) - Equitable Affiliates - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Revenue received or accrued for:	$ 795	$ 762	$ 708
Expenses paid or accrued for:	712	625	573
Investment management and administrative services provided to EQAT, EQ Premier VIP Trust, 1290 Funds and other trusts
Related Party Transaction [Line Items]
Revenue received or accrued for:	757	724	669
Amounts received or accrued for commissions and fees earned for sale of Equitable America’s insurance products
Related Party Transaction [Line Items]
Revenue received or accrued for:	38	38	39
Paid or accrued commission and fee expenses for sale of insurance products by Equitable Network
Related Party Transaction [Line Items]
Expenses paid or accrued for:	$ 712	$ 625	$ 573