v3.26.1
Loans and Related Allowance for Credit Losses (Commercial Lending Asset Quality Indicators) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Total loans, net [1] $ 360,923   $ 331,481
Gross charge-offs      
Total 309 $ 312  
Commercial      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 13,474   39,125
Year two 38,199   20,340
Year three 20,030   15,301
Year four 15,154   21,848
Year five 21,491   6,083
Prior 29,586   22,852
Revolving Loans 117,892   106,674
Revolving Loans Converted to Term 134   240
Total loans, net 255,960   232,463
Gross charge-offs      
Year one 4   50
Year two 6   49
Year three 7   83
Year four 23   28
Year five 6   18
Prior 7   118
Revolving Loans 95   131
Revolving Loans Converted to Term 0   33
Total 148 $ 131 510
Commercial | Commercial and industrial      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 11,522   35,735
Year two 33,580   17,374
Year three 16,663   10,754
Year four 10,694   14,996
Year five 13,957   4,472
Prior 17,512   13,267
Revolving Loans 117,128   106,060
Revolving Loans Converted to Term 134   240
Total loans, net 221,190   202,898
Gross charge-offs      
Year one 4   45
Year two 6   48
Year three 7   82
Year four 7   28
Year five 6   11
Prior 4   18
Revolving Loans 95   131
Revolving Loans Converted to Term 0   31
Total 129   394
Commercial | Commercial real estate      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 1,952   3,390
Year two 4,619   2,966
Year three 3,367   4,547
Year four 4,460   6,852
Year five 7,534   1,611
Prior 12,074   9,585
Revolving Loans 764   614
Revolving Loans Converted to Term 0   0
Total loans, net 34,770   29,565
Gross charge-offs      
Year one 0   5
Year two 0   1
Year three 0   1
Year four 16   0
Year five 0   7
Prior 3   100
Revolving Loans 0   0
Revolving Loans Converted to Term 0   2
Total 19   116
Pass Rated | Commercial | Commercial and industrial      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 11,441   35,176
Year two 33,066   16,478
Year three 15,777   10,180
Year four 10,163   13,815
Year five 12,836   4,139
Prior 16,752   12,757
Revolving Loans 111,994   101,222
Revolving Loans Converted to Term 82   125
Total loans, net 212,111   193,892
Pass Rated | Commercial | Commercial real estate      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 1,952   3,169
Year two 4,366   2,395
Year three 2,770   3,080
Year four 2,957   5,215
Year five 5,678   1,324
Prior 9,959   7,686
Revolving Loans 745   610
Revolving Loans Converted to Term 0   0
Total loans, net 28,427   23,479
Criticized | Commercial | Commercial and industrial      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 81   559
Year two 514   896
Year three 886   574
Year four 531   1,181
Year five 1,121   333
Prior 760   510
Revolving Loans 5,134   4,838
Revolving Loans Converted to Term 52   115
Total loans, net 9,079   9,006
Criticized | Commercial | Commercial real estate      
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]      
Year one 0   221
Year two 253   571
Year three 597   1,467
Year four 1,503   1,637
Year five 1,856   287
Prior 2,115   1,899
Revolving Loans 19   4
Revolving Loans Converted to Term 0   0
Total loans, net $ 6,343   $ 6,086
[1] Our consolidated assets included the following for which we have elected the fair value option: Loans held for sale of $1.2 billion, Loans held for investment of $1.1 billion and Other assets of $0.1 billion at March 31, 2026. Comparable amounts at December 31, 2025 were $1.7 billion, $1.1 billion and $0.2 billion, respectively.