MARKET RISK BENEFITS - Changes in the Market Risk Benefits for Deferred Variable Annuities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Market Risk Benefit [Roll Forward]
Benefit payments	$ 0	$ 5
Market risk benefits - instrument-specific credit risk component	7		$ 1
Balance, end of the period (“EOP”)	5	5
Net amount at risk	14		10
GMxB Core
Market Risk Benefit [Roll Forward]
Net amount at risk	14		$ 9
GMxB Core | Individual Variable Annuity Products
Market Risk Benefit [Roll Forward]
Balance, beginning of the period (“BOP”)	(9)	0
Balance BOP before changes in the instrument specific credit risk	(8)	1
Model changes and effect of changes in cash flow assumptions	0	0
Actual market movement effect	(5)	4
Interest accrual	0	0
Attributed fees accrued	1	0
Benefit payments	0	0
Actual policyholder behavior different from expected behavior	2	1
Changes in future economic assumptions	2	(7)
Issuances	0	(1)
Balance EOP before changes in the instrument-specific credit risk	(8)	(2)
Market risk benefits - instrument-specific credit risk component	(6)	(5)
Balance, end of the period (“EOP”)	$ (14)	$ (7)
Weighted-average age of policyholders (years)	61 years 3 months 18 days	59 years 6 months
Net amount at risk	$ 9	$ 2