v3.25.3
Investments - Schedule of Distribution of Commercial and Residential Mortgage Loans, Percentage by Geographical Location (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 37,439 $ 32,432
Percentage of Total 100.00% 100.00%
Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 100.00% 100.00%
Total U.S. residential mortgage loan percentage | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 30,831 $ 26,968
Percentage of Total 82.30% 83.20%
Total U.S. residential mortgage loan percentage | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 91.90% 90.90%
East North Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,810 $ 1,546
Percentage of Total 4.80% 4.80%
East South Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 426 $ 438
Percentage of Total 1.10% 1.30%
Middle Atlantic | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 10,074 $ 8,386
Percentage of Total 26.90% 25.90%
Mountain | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,572 $ 1,322
Percentage of Total 4.20% 4.10%
New England | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,086 $ 1,118
Percentage of Total 2.90% 3.40%
Pacific | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 6,106 $ 5,768
Percentage of Total 16.30% 17.80%
South Atlantic | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 6,465 $ 6,198
Percentage of Total 17.30% 19.10%
West North Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 523 $ 221
Percentage of Total 1.40% 0.70%
West South Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 2,769 $ 1,971
Percentage of Total 7.40% 6.10%
California | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 25.90% 25.60%
Florida | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 11.80% 12.40%
Texas | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 7.40% 7.40%
Other | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 46.80% 45.50%
Total international region | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 6,608 $ 5,464
Percentage of Total 17.70% 16.80%
Total international region | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 8.10% 9.10%
United Kingdom | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 2,874 $ 2,281
Percentage of Total 7.70% 7.00%
Other | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 3,734 $ 3,183
Percentage of Total 10.00% 9.80%
Apartment | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 14,906 $ 11,746
Percentage of Total 39.80% 36.20%
Industrial | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 8,244 $ 6,793
Percentage of Total 22.00% 21.00%
Office building | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 4,529 $ 4,162
Percentage of Total 12.10% 12.80%
Hotels | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 2,865 $ 2,786
Percentage of Total 7.70% 8.60%
Retail | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,998 $ 2,269
Percentage of Total 5.30% 7.00%
Other commercial | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 4,897 $ 4,676
Percentage of Total 13.10% 14.40%