v3.25.4
Investments - Fair Value of Trading Securities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities $ 1,660 $ 2,005
Corporate bonds    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities 1,166 1,390
State and municipal bonds    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities 13 13
Foreign government bonds    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities 39 41
RMBS    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities 56 63
CMBS    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities 100 108
ABS    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities 273 371
Hybrid and redeemable preferred securities    
Debt and Equity Securities, FV-NI [Line Items]    
Trading securities $ 13 $ 19