UNPAID CLAIM AND CLAIM EXPENSES - Rollforward of the Unpaid Claims and Claim Expenses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Liability for Unpaid Claims and Claims Adjustment Expense, [Roll Forward]
Gross balance	$ 110	$ 78
Less Reinsurance	36	23
Net balance	74	55
Incurred Claims (net) Related to:
Current Period	67	40
Prior Period	(16)	(1)
Total Incurred	51	39
Paid Claims (net) Related to:
Current Period	23	15
Prior Period	26	20
Total Paid	49	35
Net balance	76	59
Add Reinsurance	38	25
Gross balance	$ 114	$ 84