v3.26.3
Fair Value of Assets and Liabilities - Schedule of Financial Instruments Not Carried at Fair Value (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Financial assets        
Mortgage loans $ 1,040 $ 879    
Financial liabilities        
Debt 7,494 7,490    
Liability for collateral 2,143 1,934 $ 1,859 $ 2,041
Significant unobservable inputs (Level 3) | Amortized cost, net        
Financial assets        
Mortgage loans 1,040 879    
Bank loans 517 473    
Significant unobservable inputs (Level 3) | Fair value        
Financial assets        
Mortgage loans 1,014 868    
Bank loans 520 487    
Significant other observable inputs (Level 2) | Amortized cost, net        
Financial liabilities        
Debt 7,494 7,490    
Liability for collateral 2,143 1,934    
Significant other observable inputs (Level 2) | Fair value        
Financial liabilities        
Debt 6,946 7,367    
Liability for collateral $ 2,143 $ 1,934