v3.26.3
Investments - Schedule of Residential Mortgage Loans with Credit Quality Indicators, Performing or Nonperforming (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments            
Allowance for expected loan loss $ (120) $ (108) $ (86) $ (77) $ (75) $ (70)
Total loans net of valuation allowance 10,246   7,891      
Residential Mortgages            
Schedule of Investments            
Amortized Cost 6,537   4,717      
Allowance for expected loan loss (90) $ (81) (68) $ (58) $ (58) $ (53)
Total loans net of valuation allowance 6,447   4,649      
Residential Mortgages | Performing Financial Instruments            
Schedule of Investments            
Amortized Cost $ 6,410   $ 4,650      
% of Total 98.00%   99.00%      
Residential Mortgages | Nonperforming Financial Instruments            
Schedule of Investments            
Amortized Cost $ 127   $ 67      
% of Total 2.00%   1.00%