v3.26.1
Investments (Mortgage Loans Allowance for Credit Loss Rollforward by Portfolio Segment) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Balance, beginning of period $ 701 $ 503
Provision (release) 196 335
Charge-offs, net of recoveries (75) (46)
Balance, end of period 822 792
Commercial Mortgage Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Balance, beginning of period 436 312
Provision (release) 224 315
Charge-offs, net of recoveries (64) (46)
Balance, end of period 596 581
Residential Mortgage Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Balance, beginning of period 184 128
Provision (release) (30) 12
Charge-offs, net of recoveries (2) 0
Balance, end of period 152 140
Agricultural Mortgage Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Balance, beginning of period 81 63
Provision (release) 2 8
Charge-offs, net of recoveries (9) 0
Balance, end of period $ 74 $ 71