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RELATED PARTY TRANSACTIONS - Schedule of Related Party Transactions (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Related Party Transaction [Line Items]      
Payments for other fees   $ 4  
Equitable Affiliates      
Related Party Transaction [Line Items]      
Revenue from related parties $ 708 840 $ 724
Equitable Affiliates | Investment management and administrative services provided to EQAT, EQ Premier VIP Trust, 1290 Funds (1)      
Related Party Transaction [Line Items]      
Revenue from related parties $ 708 $ 840 $ 724