INSURANCE GROUP STATUTORY FINANCIAL INFORMATION - Narrative (Details) - Statement of Statutory Accounting Principles 108 - USD ($)	3 Months Ended
	Mar. 31, 2022	Jun. 30, 2021
Related Party Transaction [Line Items]
Statutory accounting practices, statutory surplus, increase	$ 1,000,000,000
Statutory accounting practices, statutory net income, decrease	$ 373,000,000
Statutory accounting practices, hedging losses amortization period	5 years
Statutory accounting practices, statutory unassigned surplus, balance		$ 0