v3.26.1
Asset Quality - Schedule of Commercial Credit Exposure (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 110,430 $ 106,541
Accrued interest 453 459
Total commercial loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 7,373 13,662
Writeoff, annual 0 32
One year prior 14,318 7,834
Writeoff, one year period 1 41
Two years prior 7,335 4,281
Writeoff, two year period 7 26
Three years prior 3,589 9,009
Writeoff, three year period 8 46
Four years prior 7,238 5,148
Writeoff, four year period 27 37
Prior 11,622 8,722
Writeoff, prior 26 40
Revolving Loans Amortized Cost Basis 29,738 27,602
Writeoff, Revolving Loans Amortized Cost Basis 127 190
Revolving Loans Converted to Term Loans Amortized Cost Basis 355 251
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 81,568 76,509
Writeoff, total 196 412
Accrued interest 338 338
Total commercial loans | Commercial and Industrial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 5,959 9,613
Writeoff, annual 0 13
One year prior 10,147 6,096
Writeoff, one year period 1 27
Two years prior 5,516 2,452
Writeoff, two year period 1 22
Three years prior 2,195 5,830
Writeoff, three year period 8 27
Four years prior 4,657 2,928
Writeoff, four year period 17 8
Prior 6,263 4,641
Writeoff, prior 20 28
Revolving Loans Amortized Cost Basis 27,722 25,917
Writeoff, Revolving Loans Amortized Cost Basis 127 187
Revolving Loans Converted to Term Loans Amortized Cost Basis 275 211
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 62,734 57,688
Writeoff, total 174 312
Total commercial loans | Commercial and Industrial | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 5,938 9,473
One year prior 9,900 5,864
Two years prior 5,330 2,263
Three years prior 1,971 5,313
Four years prior 4,180 2,648
Prior 5,473 4,115
Revolving Loans Amortized Cost Basis 26,095 24,267
Revolving Loans Converted to Term Loans Amortized Cost Basis 262 174
Total 59,149 54,117
Total commercial loans | Commercial and Industrial | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 17 139
One year prior 244 218
Two years prior 178 171
Three years prior 206 463
Four years prior 427 259
Prior 728 493
Revolving Loans Amortized Cost Basis 1,414 1,535
Revolving Loans Converted to Term Loans Amortized Cost Basis 13 37
Total 3,227 3,315
Total commercial loans | Commercial and Industrial | Criticized (Nonaccruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 4 1
One year prior 3 14
Two years prior 8 18
Three years prior 18 54
Four years prior 50 21
Prior 62 33
Revolving Loans Amortized Cost Basis 213 115
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 358 256
Total commercial loans | Real estate — commercial mortgage    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 1,233 3,254
Writeoff, annual 0 19
One year prior 3,121 941
Writeoff, one year period 0 14
Two years prior 896 714
Writeoff, two year period 6 1
Three years prior 600 2,332
Writeoff, three year period 0 18
Four years prior 1,956 1,787
Writeoff, four year period 10 29
Prior 4,387 3,252
Writeoff, prior 5 10
Revolving Loans Amortized Cost Basis 1,671 1,389
Writeoff, Revolving Loans Amortized Cost Basis 0 3
Revolving Loans Converted to Term Loans Amortized Cost Basis 77 38
Revolving Loans Converted to Term Loans Amortized Cost Basis, writeoff 0 0
Total 13,941 13,707
Writeoff, total 21 94
Total commercial loans | Real estate — commercial mortgage | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 1,232 3,246
One year prior 3,028 826
Two years prior 781 651
Three years prior 474 1,911
Four years prior 1,527 1,519
Prior 3,890 2,997
Revolving Loans Amortized Cost Basis 1,649 1,366
Revolving Loans Converted to Term Loans Amortized Cost Basis 69 29
Total 12,650 12,545
Total commercial loans | Real estate — commercial mortgage | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 1 8
One year prior 93 99
Two years prior 62 60
Three years prior 119 326
Four years prior 302 237
Prior 432 246
Revolving Loans Amortized Cost Basis 18 20
Revolving Loans Converted to Term Loans Amortized Cost Basis 8 9
Total 1,035 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 53 3
Three years prior 7 95
Four years prior 127 31
Prior 65 9
Revolving Loans Amortized Cost Basis 4 3
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 256 157
Total commercial loans | Real estate — construction    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 35 468
Writeoff, annual 0 0
One year prior 800 565
Writeoff, one year period 0 0
Two years prior 714 791
Writeoff, two year period 0 0
Three years prior 517 357
Writeoff, three year period 0 0
Four years prior 241 166
Writeoff, four year period 0 0
Prior 241 199
Writeoff, prior 0 0
Revolving Loans Amortized Cost Basis 345 296
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 2,896 2,844
Writeoff, total 0 0
Total commercial loans | Real estate — construction | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 35 468
One year prior 786 565
Two years prior 712 771
Three years prior 482 262
Four years prior 241 130
Prior 62 72
Revolving Loans Amortized Cost Basis 345 296
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 2
Total 2,663 2,566
Total commercial loans | Real estate — construction | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 0 0
One year prior 14 0
Two years prior 2 20
Three years prior 35 95
Four years prior 0 36
Prior 179 127
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 3 0
Total 233 278
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 146 327
Writeoff, annual 0 0
One year prior 250 232
Writeoff, one year period 0 0
Two years prior 209 324
Writeoff, two year period 0 3
Three years prior 277 490
Writeoff, three year period 0 1
Four years prior 384 267
Writeoff, four year period 0 0
Prior 731 630
Writeoff, prior 1 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 1,997 2,270
Writeoff, total 1 6
Total commercial loans | Commercial lease financing | Pass    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 145 322
One year prior 246 228
Two years prior 207 293
Three years prior 255 433
Four years prior 366 249
Prior 713 609
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 1,932 2,134
Total commercial loans | Commercial lease financing | Criticized (Accruing)    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current 1 5
One year prior 4 4
Two years prior 2 26
Three years prior 18 55
Four years prior 17 18
Prior 17 21
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total 59 129
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 4 2
Four years prior 1 0
Prior 1 0
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term Loans Amortized Cost Basis 0 0
Total $ 6 $ 7