v3.26.1
Investments - Schedule of Residential Mortgage Loans with Credit Quality Indicators, Performing or Nonperforming (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]        
Allowance for expected loan loss $ (97) $ (86) $ (73) $ (70)
Total CMLs, net of valuation allowance 8,459 7,891    
Residential Mortgage        
Schedule of Investments [Line Items]        
Amortized Cost $ 5,018 $ 4,717    
% of Total 100.00% 100.00%    
Allowance for expected loan loss $ (74) $ (68) $ (56) $ (53)
Total CMLs, net of valuation allowance 4,944 4,649    
Performing | Residential Mortgage        
Schedule of Investments [Line Items]        
Amortized Cost $ 4,893 $ 4,650    
% of Total 98.00% 99.00%    
Non-performing | Residential Mortgage        
Schedule of Investments [Line Items]        
Amortized Cost $ 125 $ 67    
% of Total 2.00% 1.00%