v3.26.1
Fair Value of Financial Instruments - Changes in Unrealized Gains (Losses) Within Level 3 Financial Instruments Carried at Fair Value and Still Held (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Trading securities    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income $ (2) $ (3)
Equity securities    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income (4) (6)
Mortgage loans on real estate    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income 1 (1)
Derivative investments    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income (34) 12
MRBs    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income (994) (1,299)
Reinsurance-related embedded derivatives    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income 182 (89)
Indexed annuity ceded embedded derivatives    
Fair Value Assets And Liabilities Measured On Recurring Basis Level 3 Activity [Line Items]    
Changes in unrealized gains (losses) included in net income $ 368 $ 169