v3.26.1
Investments (Mortgage Loans by Portfolio Segment) (Details) - Mortgage Loans - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing receivable, before allowance for credit losses $ 22,805 $ 22,926    
Financing receivable, allowance for credit losses (210) (200) $ (209) $ (178)
Financing receivable, net of allowance for credit losses $ 22,595 $ 22,726    
Financing receivable, before allowance for credit losses as a percentage of financing receivable, net of allowance for credit losses 101.00% 100.90%    
Financing receivable, allowance for credit losses as a percentage of financing receivable, net of allowance for credit losses (1.00%) (0.90%)    
Financing receivable, after allowance for credit losses as a percentage of financing receivable, net of allowance for credit losses 100.00% 100.00%    
Commercial        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing receivable, before allowance for credit losses $ 12,131 $ 12,319    
Financing receivable, allowance for credit losses $ (145) $ (134) (146) (106)
Financing receivable, before allowance for credit losses as a percentage of financing receivable, net of allowance for credit losses 53.70% 54.20%    
Agricultural        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing receivable, before allowance for credit losses $ 4,622 $ 4,631    
Financing receivable, allowance for credit losses $ (20) $ (20) (22) (30)
Financing receivable, before allowance for credit losses as a percentage of financing receivable, net of allowance for credit losses 20.50% 20.40%    
Residential        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Financing receivable, before allowance for credit losses $ 6,052 $ 5,976    
Financing receivable, allowance for credit losses $ (45) $ (46) $ (41) $ (42)
Financing receivable, before allowance for credit losses as a percentage of financing receivable, net of allowance for credit losses 26.80% 26.30%