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FAIR VALUE DISCLOSURES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Fair Value Inputs Assets Quantitative Information 1 [Line Items]          
AFS fixed maturities transferred between Level 2 and 3 (percentage)     1.30%    
Level 3 | Corporate          
Fair Value Inputs Assets Quantitative Information 1 [Line Items]          
Transfers out of Level 3 $ 0 $ 0 $ (5) $ 0  
AFS fixed maturities transferred from Level 3 to Level 2 0 $ 0 0 $ 0  
Level 3 | Fair Value, Nonrecurring          
Fair Value Inputs Assets Quantitative Information 1 [Line Items]          
Fair value measurements not included in quantitative information about level 3 fair value measurements $ 13   $ 13   $ 2