v3.26.1
Fair Value of Financial Instruments - Changes in Unrealized Gains (Losses) Included in OCI (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Corporate bonds    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Unrealized gains (losses) included in OCI, net $ (38) $ (10)
CMBS    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Unrealized gains (losses) included in OCI, net (1) 0
ABS    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Unrealized gains (losses) included in OCI, net (39) 16
Hybrid and redeemable preferred securities    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Unrealized gains (losses) included in OCI, net (1) 0
Mortgage loans on real estate    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Unrealized gains (losses) included in OCI, net $ (1) $ 2