v3.26.3
Allowance for Credit Losses (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Financing Receivable, Allowance for Credit Loss [Line Items]          
Total allowance for credit losses $ 480 $ 492 $ 480 $ 492 $ 485
Decrease in ACL     5    
Loans and leases on non-accrual status with no related ACL 0   0   2
Interest income on non-accrual loans and leases 0 $ 0 0 $ 0  
Collateral Pledged          
Financing Receivable, Allowance for Credit Loss [Line Items]          
Loans and leases on non-accrual status with no related ACL $ 79   $ 79   $ 67