v3.26.3
Loans and ACL - Credit Quality Indicator (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Financing Receivable    
Year One $ 59,098 $ 83,778
Year Two 58,383 31,485
Year Three 21,470 21,025
Year Four 13,961 38,556
Year Five 28,633 28,188
Prior 55,849 40,092
Revolving Credit 84,043 82,668
Loans Converted to Term 2,864 3,123
Other (371) (320)
Total 323,930 328,595
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 120 179
Year Two 362 378
Year Three 268 366
Year Four 194 311
Year Five 207 122
Prior 178 240
Revolving Credit 481 497
Loans Converted to Term 10 15
Other 0 0
Total 1,820 2,108
Commercial: | Commercial and industrial    
Financing Receivable    
Year One 30,850 42,913
Year Two 28,059 13,381
Year Three 8,993 8,972
Year Four 6,034 14,183
Year Five 9,762 8,133
Prior 18,045 15,282
Revolving Credit 65,853 65,177
Loans Converted to Term 0 0
Other (280) (233)
Total 167,316 167,808
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 15 45
Year Two 28 96
Year Three 50 70
Year Four 10 28
Year Five 40 1
Prior 27 9
Revolving Credit 234 212
Loans Converted to Term 0 0
Other 0 0
Total 404 461
Commercial: | Commercial and industrial | Pass    
Financing Receivable    
Year One 30,582 42,084
Year Two 27,448 12,725
Year Three 8,542 8,296
Year Four 5,520 13,476
Year Five 9,378 7,558
Prior 17,525 14,854
Revolving Credit 64,036 63,555
Loans Converted to Term 0 0
Other (280) (233)
Total 162,751 162,315
Commercial: | Commercial and industrial | Special mention    
Financing Receivable    
Year One 64 401
Year Two 101 153
Year Three 125 136
Year Four 163 180
Year Five 121 309
Prior 180 113
Revolving Credit 569 621
Loans Converted to Term 0 0
Other 0 0
Total 1,323 1,913
Commercial: | Commercial and industrial | Substandard    
Financing Receivable    
Year One 189 351
Year Two 500 391
Year Three 262 476
Year Four 281 383
Year Five 127 254
Prior 271 262
Revolving Credit 879 624
Loans Converted to Term 0 0
Other 0 0
Total 2,509 2,741
Commercial: | Commercial and industrial | Nonperforming    
Financing Receivable    
Year One 15 77
Year Two 10 112
Year Three 64 64
Year Four 70 144
Year Five 136 12
Prior 69 53
Revolving Credit 369 377
Loans Converted to Term 0 0
Other 0 0
Total 733 839
Commercial: | CRE    
Financing Receivable    
Year One 7,613 9,027
Year Two 7,507 1,465
Year Three 954 1,921
Year Four 1,364 3,887
Year Five 3,191 2,164
Prior 4,235 4,102
Revolving Credit 1,132 1,238
Loans Converted to Term 0 0
Other (99) (84)
Total 25,897 23,720
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 0 6
Year Two 3 42
Year Three 0 14
Year Four 0 8
Year Five 4 0
Prior 1 77
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 8 147
Commercial: | CRE | Pass    
Financing Receivable    
Year One 7,425 8,621
Year Two 7,046 1,300
Year Three 930 1,548
Year Four 985 3,233
Year Five 2,949 1,797
Prior 3,804 3,510
Revolving Credit 1,058 1,103
Loans Converted to Term 0 0
Other (99) (84)
Total 24,098 21,028
Commercial: | CRE | Special mention    
Financing Receivable    
Year One 27 26
Year Two 172 11
Year Three 0 61
Year Four 9 181
Year Five 26 211
Prior 166 121
Revolving Credit 74 0
Loans Converted to Term 0 0
Other 0 0
Total 474 611
Commercial: | CRE | Substandard    
Financing Receivable    
Year One 161 376
Year Two 287 153
Year Three 24 311
Year Four 369 460
Year Five 186 150
Prior 255 449
Revolving Credit 0 135
Loans Converted to Term 0 0
Other 0 0
Total 1,282 2,034
Commercial: | CRE | Nonperforming    
Financing Receivable    
Year One 0 4
Year Two 2 1
Year Three 0 1
Year Four 1 13
Year Five 30 6
Prior 10 22
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 43 47
Commercial: | Commercial construction    
Financing Receivable    
Year One 1,660 1,685
Year Two 1,905 613
Year Three 612 1,458
Year Four 625 1,803
Year Five 419 281
Prior 33 22
Revolving Credit 2,204 1,921
Loans Converted to Term 0 0
Other 0 0
Total 7,458 7,783
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 0  
Year Two 0  
Year Three 0  
Year Four 0  
Year Five 0  
Prior 0  
Revolving Credit 20  
Loans Converted to Term 0  
Other 0  
Total 20  
Commercial: | Commercial construction | Pass    
Financing Receivable    
Year One 1,327 1,398
Year Two 1,849 581
Year Three 612 1,070
Year Four 429 531
Year Five 91 158
Prior 33 20
Revolving Credit 2,038 1,844
Loans Converted to Term 0 0
Other 0 0
Total 6,379 5,602
Commercial: | Commercial construction | Special mention    
Financing Receivable    
Year One 64 112
Year Two 6 0
Year Three 0 40
Year Four 96 252
Year Five 46 32
Prior 0 2
Revolving Credit 104 36
Loans Converted to Term 0 0
Other 0 0
Total 316 474
Commercial: | Commercial construction | Substandard    
Financing Receivable    
Year One 269 175
Year Two 50 32
Year Three 0 348
Year Four 100 1,020
Year Five 282 91
Prior 0 0
Revolving Credit 44 0
Loans Converted to Term 0 0
Other 0 0
Total 745 1,666
Commercial: | Commercial construction | Nonperforming    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 18 41
Loans Converted to Term 0 0
Other 0 0
Total 18 41
Consumer: | Residential mortgage    
Financing Receivable    
Year One 5,695 5,750
Year Two 5,348 4,000
Year Three 3,384 2,551
Year Four 2,247 11,926
Year Five 11,171 14,590
Prior 30,358 17,990
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 58,203 56,807
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 0 0
Year Two 0 1
Year Three 0 1
Year Four 0 2
Year Five 1 2
Prior 2 0
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 3 6
Consumer: | Residential mortgage | Current    
Financing Receivable    
Year One 5,673 5,724
Year Two 5,296 3,947
Year Three 3,310 2,420
Year Four 2,106 11,747
Year Five 10,984 14,453
Prior 29,326 17,047
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 56,695 55,338
Consumer: | Residential mortgage | 30-89 Days Past Due    
Financing Receivable    
Year One 20 20
Year Two 27 14
Year Three 21 35
Year Four 31 81
Year Five 79 68
Prior 491 468
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 669 686
Consumer: | Residential mortgage | 90 Days or More Past Due    
Financing Receivable    
Year One 2 6
Year Two 18 34
Year Three 45 90
Year Four 99 61
Year Five 69 34
Prior 381 345
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 614 570
Consumer: | Residential mortgage | Nonperforming    
Financing Receivable    
Year One 0 0
Year Two 7 5
Year Three 8 6
Year Four 11 37
Year Five 39 35
Prior 160 130
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 225 213
Consumer: | Home equity    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 6,903 6,665
Loans Converted to Term 2,784 3,054
Other 0 0
Total 9,687 9,719
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 9 9
Loans Converted to Term 0 1
Other 0 0
Total 9 10
Consumer: | Home equity | Current    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 6,815 6,575
Loans Converted to Term 2,716 2,969
Other 0 0
Total 9,531 9,544
Consumer: | Home equity | 30-89 Days Past Due    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 42 52
Loans Converted to Term 14 17
Other 0 0
Total 56 69
Consumer: | Home equity | 90 Days or More Past Due    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 5 5
Loans Converted to Term 1 2
Other 0 0
Total 6 7
Consumer: | Home equity | Nonperforming    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 41 33
Loans Converted to Term 53 66
Other 0 0
Total 94 99
Consumer: | Indirect auto    
Financing Receivable    
Year One 3,545 11,904
Year Two 7,083 5,972
Year Three 3,300 2,085
Year Four 856 3,282
Year Five 1,559 1,548
Prior 744 875
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 5 (7)
Total 17,092 25,659
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 56 30
Year Two 165 101
Year Three 117 122
Year Four 97 163
Year Five 109 72
Prior 107 103
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 651 591
Consumer: | Indirect auto | Current    
Financing Receivable    
Year One 3,521 11,752
Year Two 6,999 5,780
Year Three 3,246 1,933
Year Four 822 3,075
Year Five 1,493 1,430
Prior 695 750
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 5 (7)
Total 16,781 24,713
Consumer: | Indirect auto | 30-89 Days Past Due    
Financing Receivable    
Year One 20 123
Year Two 61 139
Year Three 37 106
Year Four 22 142
Year Five 40 80
Prior 30 89
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 210 679
Consumer: | Indirect auto | Nonperforming    
Financing Receivable    
Year One 4 29
Year Two 23 53
Year Three 17 46
Year Four 12 65
Year Five 26 38
Prior 19 36
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 101 267
Consumer: | Other consumer    
Financing Receivable    
Year One 9,735 12,499
Year Two 8,481 6,054
Year Three 4,227 4,038
Year Four 2,835 3,475
Year Five 2,531 1,472
Prior 2,434 1,821
Revolving Credit 3,204 2,789
Loans Converted to Term 36 29
Other 3 4
Total 33,486 32,181
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 49 98
Year Two 166 138
Year Three 101 159
Year Four 87 110
Year Five 53 47
Prior 41 51
Revolving Credit 25 30
Loans Converted to Term 0 0
Other 0 0
Total 522 633
Consumer: | Other consumer | Current    
Financing Receivable    
Year One 9,682 12,416
Year Two 8,391 5,975
Year Three 4,165 3,947
Year Four 2,777 3,415
Year Five 2,492 1,446
Prior 2,395 1,791
Revolving Credit 3,195 2,780
Loans Converted to Term 34 27
Other 3 4
Total 33,134 31,801
Consumer: | Other consumer | 30-89 Days Past Due    
Financing Receivable    
Year One 45 66
Year Two 62 60
Year Three 45 66
Year Four 42 44
Year Five 27 17
Prior 24 19
Revolving Credit 7 7
Loans Converted to Term 2 2
Other 0 0
Total 254 281
Consumer: | Other consumer | 90 Days or More Past Due    
Financing Receivable    
Year One 3 4
Year Two 4 7
Year Three 3 11
Year Four 4 4
Year Five 2 0
Prior 1 0
Revolving Credit 2 2
Loans Converted to Term 0 0
Other 0 0
Total 19 28
Consumer: | Other consumer | Nonperforming    
Financing Receivable    
Year One 5 13
Year Two 24 12
Year Three 14 14
Year Four 12 12
Year Five 10 9
Prior 14 11
Revolving Credit 0 0
Loans Converted to Term 0 0
Other 0 0
Total 79 71
Credit card    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 4,747 4,878
Loans Converted to Term 44 40
Other 0 0
Total 4,791 4,918
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 193 246
Loans Converted to Term 10 14
Other 0 0
Total 203 260
Credit card | Current    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 4,625 4,733
Loans Converted to Term 36 32
Other 0 0
Total 4,661 4,765
Credit card | 30-89 Days Past Due    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 62 73
Loans Converted to Term 4 4
Other 0 0
Total 66 77
Credit card | 90 Days or More Past Due    
Financing Receivable    
Year One 0 0
Year Two 0 0
Year Three 0 0
Year Four 0 0
Year Five 0 0
Prior 0 0
Revolving Credit 60 72
Loans Converted to Term 4 4
Other 0 0
Total $ 64 $ 76