v3.26.1
Investments (Past Due and Interest Accrual Status of Mortgage Loans) (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross $ 84,904 $ 85,751
Greater than 90 Days Past Due and Still Accruing Interest 95 92
Financing Receivable, Nonaccrual 2,626 2,640
Financial Asset, Past Due    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross 1,635 1,457
Commercial Mortgage Loans    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross 48,029 49,400
Greater than 90 Days Past Due and Still Accruing Interest 10 3
Financing Receivable, Nonaccrual 1,894 1,915
Commercial Mortgage Loans | Financial Asset, Past Due    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross 828 682
Residential Mortgage Loans    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross 17,520 16,800
Greater than 90 Days Past Due and Still Accruing Interest 28 23
Financing Receivable, Nonaccrual 524 500
Residential Mortgage Loans | Financial Asset, Past Due    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross 552 523
Agricultural Mortgage Loans    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross 19,355 19,551
Greater than 90 Days Past Due and Still Accruing Interest 57 66
Financing Receivable, Nonaccrual 208 225
Agricultural Mortgage Loans | Financial Asset, Past Due    
Financing Receivable, Nonaccrual [Line Items]    
Mortgage Loans, Gross $ 255 $ 252