v3.26.1
Business Segment Information - Schedule of Noninterest Expense (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Noninterest expense:        
Personnel expense $ 304 $ 282 $ 593 $ 561
Computer software 40 34 77 66
Net occupancy expense 36 34 71 69
Operations services 26 23 52 46
Legal and professional fees 18 17 34 31
Advertising and public relations 17 14 27 24
Deposit insurance expense 12 12 25 25
Equipment expense 11 11 22 22
Amortization of intangible assets 8 10 16 20
Other expense 60 54 119 114
Cost allocations 0 0 0 0
Total noninterest expense 532 491 1,036 978
Commercial, Consumer & Wealth        
Noninterest expense:        
Personnel expense 142 133 284 268
Computer software 9 8 17 15
Net occupancy expense 19 20 38 41
Operations services 4 4 8 8
Legal and professional fees 3 3 7 6
Advertising and public relations 0 2 1 3
Deposit insurance expense 0 0 0 0
Equipment expense 3 3 6 5
Amortization of intangible assets 8 9 16 17
Other expense 16 18 31 39
Cost allocations 172 155 336 297
Total noninterest expense 376 355 744 699
Wholesale        
Noninterest expense:        
Personnel expense 52 52 108 103
Computer software 2 2 4 3
Net occupancy expense 2 2 4 4
Operations services 6 6 12 11
Legal and professional fees 1 1 2 2
Advertising and public relations 0 0 0 0
Deposit insurance expense 0 0 0 0
Equipment expense 0 0 1 1
Amortization of intangible assets 0 0 0 1
Other expense 9 7 16 13
Cost allocations 7 5 15 12
Total noninterest expense 79 75 162 150
Corporate        
Noninterest expense:        
Personnel expense 110 97 201 190
Computer software 29 24 56 48
Net occupancy expense 15 12 29 24
Operations services 16 13 32 27
Legal and professional fees 14 13 25 23
Advertising and public relations 17 12 26 21
Deposit insurance expense 12 12 25 25
Equipment expense 8 8 15 16
Amortization of intangible assets 0 1 0 2
Other expense 35 29 72 62
Cost allocations (179) (160) (351) (309)
Total noninterest expense $ 77 $ 61 $ 130 $ 129