FAIR VALUE DISCLOSURES - Fair Value Measurement Reconciliation For All Levels (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Total Gains Losses Realized Unrealized Included In [Abstract]
Net derivative gains (losses)	$ (5)	$ (1)
Level 3 | Corporate
Total Gains Losses Realized Unrealized Included In [Abstract]
Beginning Balance	18	11
Investment gains (losses), reported in net investment income	0	0
Net derivative gains (losses)	0	0
Total realized and unrealized gains (losses)	0	0
Other comprehensive income (loss)	0	(1)
Purchases	29	1
Sales	0	0
Transfers into level 3	0	0
Transfers out of Level 3	(10)	0
Closing Balance	37	11
Change in unrealized gains or losses for the period included in earnings for instruments held at the end of the reporting period	0	0
Change in unrealized gains or losses for the period included in other comprehensive income for instruments held at the end of the reporting period.	$ 0	$ (1)