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INSURANCE GROUP STATUTORY FINANCIAL INFORMATION - Narrative (Details)
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
prescribedAndPermittedPractice
Sep. 30, 2022
USD ($)
prescribedAndPermittedPractice
Jun. 30, 2021
USD ($)
Related Party Transaction [Line Items]      
Number of prescribed and permitted practices | prescribedAndPermittedPractice 3 3  
Statement of Statutory Accounting Principles 108      
Related Party Transaction [Line Items]      
Statutory accounting practices, statutory surplus, increase $ 128,000,000 $ 128,000,000  
Statutory accounting practices, statutory net income, decrease $ 332,000,000 $ 1,200,000,000  
Statutory accounting practices, hedging losses amortization period   5 years  
Statutory accounting practices, statutory unassigned surplus, balance     $ 0
Regulation Number 213      
Related Party Transaction [Line Items]      
Statutory accounting practices, statutory surplus, increase (decrease) to new standard application   $ (2,200,000,000)  
Statutory accounting practices, total asset required, percentage 100.00% 100.00%  
Statutory accounting practices, statutory net income, increase (decrease) to new standard application $ 800,000,000 $ (900,000,000)  
Regulation Number 213 with Seperate Accounts      
Related Party Transaction [Line Items]      
Statutory accounting practices, statutory surplus, increase (decrease) to new standard application 2,300,000,000 2,300,000,000  
Statutory accounting practices, statutory net income, increase (decrease) to new standard application $ 426,000,000 $ 2,400,000,000