v3.26.1
Derivatives - Derivatives included in the Balance Sheet at fair value (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Derivative assets $ 72 $ 54
Derivative liabilities 5 3
Interest rate swaps | Designated as hedging instrument    
Derivatives, Fair Value [Line Items]    
Derivative assets 0 1
Derivative liabilities $ 5 $ 3
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other Assets Other Assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities - derivatives Other liabilities - derivatives
Fixed maturities with embedded derivatives | Not designated as hedging instrument    
Derivatives, Fair Value [Line Items]    
Derivative assets $ 72 $ 53
Derivative liabilities $ 0 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Available for sale (AFS) fixed maturities  
Total return swap | Not designated as hedging instrument    
Derivatives, Fair Value [Line Items]    
Derivative assets $ 0 0
Derivative liabilities $ 0 $ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other Assets Other Assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities - derivatives Other liabilities - derivatives