v3.26.1
Asset Quality - Schedule of Commercial Credit Exposure (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 109,190 $ 106,541
Accrued interest 443 459
Total commercial loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 3,751 13,662
Writeoff, current period 0 32
One year prior 14,090 7,834
Writeoff, one year period 0 41
Two years prior 7,702 4,281
Writeoff, two year period 0 26
Three years prior 4,071 9,009
Writeoff, three year period 4 46
Four years prior 8,277 5,148
Writeoff, four year period 13 37
Prior 12,638 8,722
Writeoff, prior 6 40
Revolving Loans Amortized Cost Basis 29,022 27,602
Writeoff, Revolving Loans Amortized Cost Basis 68 190
Revolving Loans Converted to Term Loans Amortized Cost Basis 245 251
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 79,796 76,509
Writeoff, total 91 412
Accrued interest 322 338
Total commercial loans | Commercial and Industrial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 3,019 9,613
Writeoff, current period 0 13
One year prior 9,830 6,096
Writeoff, one year period 0 27
Two years prior 5,902 2,452
Writeoff, two year period 0 22
Three years prior 2,408 5,830
Writeoff, three year period 4 27
Four years prior 5,323 2,928
Writeoff, four year period 12 8
Prior 6,729 4,641
Writeoff, prior 6 28
Revolving Loans Amortized Cost Basis 27,235 25,917
Writeoff, Revolving Loans Amortized Cost Basis 68 187
Revolving Loans Converted to Term Loans Amortized Cost Basis 205 211
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 60,651 57,688
Writeoff, total 90 312
Total commercial loans | Commercial and Industrial | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 3,017 9,473
One year prior 9,648 5,864
Two years prior 5,707 2,263
Three years prior 2,203 5,313
Four years prior 4,832 2,648
Prior 5,959 4,115
Revolving Loans Amortized Cost Basis 25,593 24,267
Revolving Loans Converted to Term Loans Amortized Cost Basis 193 174
Total 57,152 54,117
Total commercial loans | Commercial and Industrial | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 2 139
One year prior 181 218
Two years prior 188 171
Three years prior 193 463
Four years prior 455 259
Prior 719 493
Revolving Loans Amortized Cost Basis 1,467 1,535
Revolving Loans Converted to Term Loans Amortized Cost Basis 10 37
Total 3,215 3,315
Total commercial loans | Commercial and Industrial | Criticized (Nonaccruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 1
One year prior 1 14
Two years prior 7 18
Three years prior 12 54
Four years prior 36 21
Prior 51 33
Revolving Loans Amortized Cost Basis 175 115
Revolving Loans Converted to Term Loans Amortized Cost Basis 2 0
Total 284 256
Total commercial loans | Real estate — commercial mortgage    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 640 3,254
Writeoff, current period 0 19
One year prior 3,329 941
Writeoff, one year period 0 14
Two years prior 934 714
Writeoff, two year period 0 1
Three years prior 658 2,332
Writeoff, three year period 0 18
Four years prior 2,228 1,787
Writeoff, four year period 1 29
Prior 4,799 3,252
Writeoff, prior 0 10
Revolving Loans Amortized Cost Basis 1,519 1,389
Writeoff, Revolving Loans Amortized Cost Basis 0 3
Revolving Loans Converted to Term Loans Amortized Cost Basis 37 38
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 14,144 13,707
Writeoff, total 1 94
Total commercial loans | Real estate — commercial mortgage | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 640 3,246
One year prior 3,282 826
Two years prior 813 651
Three years prior 578 1,911
Four years prior 1,762 1,519
Prior 4,262 2,997
Revolving Loans Amortized Cost Basis 1,501 1,366
Revolving Loans Converted to Term Loans Amortized Cost Basis 29 29
Total 12,867 12,545
Total commercial loans | Real estate — commercial mortgage | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 8
One year prior 47 99
Two years prior 105 60
Three years prior 73 326
Four years prior 373 237
Prior 467 246
Revolving Loans Amortized Cost Basis 14 20
Revolving Loans Converted to Term Loans Amortized Cost Basis 8 9
Total 1,087 1,005
Total commercial loans | Real estate — commercial mortgage | Criticized (Nonaccruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 0
One year prior 0 16
Two years prior 16 3
Three years prior 7 95
Four years prior 93 31
Prior 70 9
Revolving Loans Amortized Cost Basis 4 3
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 190 157
Total commercial loans | Real estate — construction    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 5 468
Writeoff, current period 0 0
One year prior 619 565
Writeoff, one year period 0 0
Two years prior 641 791
Writeoff, two year period 0 0
Three years prior 708 357
Writeoff, three year period 0 0
Four years prior 280 166
Writeoff, four year period 0 0
Prior 277 199
Writeoff, prior 0 0
Revolving Loans Amortized Cost Basis 268 296
Writeoff, Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 3 2
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 2,801 2,844
Writeoff, total 0 0
Total commercial loans | Real estate — construction | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 5 468
One year prior 612 565
Two years prior 641 771
Three years prior 633 262
Four years prior 239 130
Prior 152 72
Revolving Loans Amortized Cost Basis 268 296
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 2
Total 2,550 2,566
Total commercial loans | Real estate — construction | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 0
One year prior 7 0
Two years prior 0 20
Three years prior 75 95
Four years prior 41 36
Prior 125 127
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 3 0
Total 251 278
Total commercial loans | Real estate — construction | Criticized (Nonaccruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 0
One year prior 0 0
Two years prior 0 0
Three years prior 0 0
Four years prior 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 0 0
Total commercial loans | Commercial lease financing    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 87 327
Writeoff, current period 0 0
One year prior 312 232
Writeoff, one year period 0 0
Two years prior 225 324
Writeoff, two year period 0 3
Three years prior 297 490
Writeoff, three year period 0 1
Four years prior 446 267
Writeoff, four year period 0 0
Prior 833 630
Writeoff, prior 0 2
Revolving Loans Amortized Cost Basis 0
Writeoff, Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 2,200 2,270
Writeoff, total 0 6
Total commercial loans | Commercial lease financing | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 87 322
One year prior 309 228
Two years prior 221 293
Three years prior 269 433
Four years prior 393 249
Prior 807 609
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 2,086 2,134
Total commercial loans | Commercial lease financing | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 5
One year prior 3 4
Two years prior 4 26
Three years prior 23 55
Four years prior 52 18
Prior 26 21
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 108 129
Total commercial loans | Commercial lease financing | Criticized (Nonaccruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 0
One year prior 0 0
Two years prior 0 5
Three years prior 5 2
Four years prior 1 0
Prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total $ 6 $ 7