v3.26.1
Investments - Schedule of Distribution of Commercial and Residential Mortgage Loans, Percentage by Geographical Location (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 40,014 $ 39,071
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 $ 31,603 $ 31,303
Percentage of Total 79.10% 80.10%
Total U.S. residential mortgage loan percentage | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 91.30% 91.30%
East North Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,949 $ 1,883
Percentage of Total 4.90% 4.80%
East South Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 411 $ 447
Percentage of Total 1.00% 1.10%
Middle Atlantic | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 9,185 $ 9,323
Percentage of Total 23.00% 23.90%
Mountain | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,626 $ 1,605
Percentage of Total 4.10% 4.10%
New England | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 1,089 $ 1,088
Percentage of Total 2.70% 2.80%
Pacific | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 5,666 $ 6,021
Percentage of Total 14.20% 15.40%
South Atlantic | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 7,491 $ 6,919
Percentage of Total 18.70% 17.70%
West North Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 789 $ 842
Percentage of Total 2.00% 2.20%
West South Central | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 3,397 $ 3,175
Percentage of Total 8.50% 8.10%
California | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 23.00% 23.00%
Texas | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 15.10% 15.20%
Florida | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 10.50% 10.60%
Other | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 42.70% 42.50%
Total international region | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 8,411 $ 7,768
Percentage of Total 20.90% 19.90%
Total international region | Residential Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Percentage of Total 8.70% 8.70%
U.K. | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 3,169 $ 3,085
Percentage of Total 7.90% 7.90%
Other international | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 5,242 $ 4,683
Percentage of Total 13.00% 12.00%
Apartment | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 14,539 $ 15,458
Percentage of Total 36.30% 39.50%
Industrial | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 9,491 $ 8,778
Percentage of Total 23.70% 22.50%
Office building | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 4,558 $ 4,530
Percentage of Total 11.40% 11.60%
Hotels | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 3,103 $ 2,773
Percentage of Total 7.80% 7.10%
Retail | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 2,277 $ 2,061
Percentage of Total 5.70% 5.30%
Other commercial | Commercial Mortgage Loan    
Financing Receivable, Allowance for Credit Loss [Line Items]    
Fair Value $ 6,046 $ 5,471
Percentage of Total 15.10% 14.00%