v3.26.3
Investments (Mortgage Loans by Property Type) (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 12,344   $ 11,268      
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums (40)   (47)      
Allowance for Loan and Lease Losses, Real Estate (142) $ (127) (117) $ (113) $ (107) $ (93)
Mortgage loans on real estate (net of valuation allowances) $ 12,162   $ 11,104      
Percentage of total 100.00%   100.00%      
UNITED STATES            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Percentage of total 92.60%          
CANADA            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Percentage of total 5.90%          
UNITED KINGDOM            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Percentage of total 1.50%          
CALIFORNIA            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Percentage of total 12.20%          
TEXAS            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Percentage of total 8.80%          
WASHINGTON            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Percentage of total 6.70%          
Office building            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 1,717   $ 1,800      
Percentage of total 13.90%   16.00%      
Retail            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 3,477   $ 3,455      
Percentage of total 28.20%   30.70%      
Industrial            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 4,008   $ 3,549      
Percentage of total 32.50%   31.50%      
Apartment            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 1,695   $ 1,356      
Percentage of total 13.70%   12.00%      
Other commercial            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 343   $ 161      
Percentage of total 2.80%   1.40%      
Hotel            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 496   $ 500      
Percentage of total 4.00%   4.40%      
Commercial Real Estate            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 11,736   $ 10,821      
Allowance for Loan and Lease Losses, Real Estate $ (133) $ (119) $ (112) $ (108) $ (103) $ (93)
Percentage of total 95.10%   96.00%      
Residential Mortgage            
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]            
Recorded investment $ 608   $ 447      
Percentage of total 4.90%   4.00%