EMPLOYEE BENEFIT PLANS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Expenses associated with plans	$ (12)	$ 9	$ 21
Nonqualified Plan
Defined Benefit Plan Disclosure [Line Items]
Expenses associated with plans	23	32	47
Equitable 401(k) Plan
Defined Benefit Plan Disclosure [Line Items]
Expenses associated with plans	$ 29	$ 19	$ 22