v3.26.1
Allowance for Credit Losses (Allowance for Credit Losses Methodology) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Allowance for credit losses on loans and leases          
Balance, beginning of period $ 459 $ 421 $ 466 $ 425 $ 425
(Recapture) provision for credit losses on loans and leases 29 29 57 55  
Charge-offs (35) (34) (75) (69)  
Recoveries 5 5 10 10  
Net charge-offs (30) (29) (65) (59)  
Balance, end of period 458 421 458 421 466
Reserve for unfunded commitments          
Balance, beginning of period 19 17 19 16 16
Provision (recapture) for credit losses on unfunded commitments (2) 1 (2) 2  
Balance, end of period 17 18 17 18 19
Total allowance for credit losses 475 439 475 439 485
Commercial real estate          
Allowance for credit losses on loans and leases          
Balance, beginning of period 212 168 198 154 154
(Recapture) provision for credit losses on loans and leases 6 (8) 20 6  
Charge-offs (1) 0 (1) 0  
Recoveries 0 0 0 0  
Net charge-offs (1) 0 (1) 0  
Balance, end of period 217 160 217 160 198
Reserve for unfunded commitments          
Balance, beginning of period 11 8 10 6 6
Provision (recapture) for credit losses on unfunded commitments (2) 0 (1) 2  
Balance, end of period 9 8 9 8 10
Total allowance for credit losses 226 168 226 168  
Commercial          
Allowance for credit losses on loans and leases          
Balance, beginning of period 208 214 226 219 219
(Recapture) provision for credit losses on loans and leases 34 34 51 58  
Charge-offs (32) (33) (71) (66)  
Recoveries 4 5 8 9  
Net charge-offs (28) (28) (63) (57)  
Balance, end of period 214 220 214 220 226
Reserve for unfunded commitments          
Balance, beginning of period 6 7 7 7 7
Provision (recapture) for credit losses on unfunded commitments 0 1 (1) 1  
Balance, end of period 6 8 6 8 7
Total allowance for credit losses 220 228 220 228  
Residential          
Allowance for credit losses on loans and leases          
Balance, beginning of period 33 32 34 45 45
(Recapture) provision for credit losses on loans and leases (12) 2 (13) (10)  
Charge-offs 0 0 0 (1)  
Recoveries 0 0 0 0  
Net charge-offs 0 0 0 (1)  
Balance, end of period 21 34 21 34 34
Reserve for unfunded commitments          
Balance, beginning of period 1 1 1 2 2
Provision (recapture) for credit losses on unfunded commitments 0 0 0 (1)  
Balance, end of period 1 1 1 1 1
Total allowance for credit losses 22 35 22 35  
Consumer & other          
Allowance for credit losses on loans and leases          
Balance, beginning of period 6 7 8 7 7
(Recapture) provision for credit losses on loans and leases 1 1 (1) 1  
Charge-offs (2) (1) (3) (2) (5)
Recoveries 1 0 2 1  
Net charge-offs (1) (1) (1) (1)  
Balance, end of period 6 7 6 7 8
Reserve for unfunded commitments          
Balance, beginning of period 1 1 1 1 1
Provision (recapture) for credit losses on unfunded commitments 0 0 0 0  
Balance, end of period 1 1 1 1 $ 1
Total allowance for credit losses $ 7 $ 8 $ 7 $ 8