UNPAID CLAIM AND CLAIM EXPENSES - Rollforward of the Unpaid Claims and Claim Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Liability for Unpaid Claims and Claims Adjustment Expense, [Roll Forward]
Gross balance	$ 78	$ 41
Less Reinsurance	23	15
Net balance	55	26
Incurred Claims (net) Related to:
Current Period	40	28
Prior Period	(1)	1
Total Incurred	39	29
Paid Claims (net) Related to:
Current Period	15	13
Prior Period	20	14
Total Paid	35	27
Net balance	59	28
Add Reinsurance	25	16
Gross balance	$ 84	$ 44