Quarterly report [Sections 13 or 15(d)]

Outstanding Loans and Leases and Allowance for Credit Losses - Commercial - Credit Quality Indicators (Details)

v3.26.1
Outstanding Loans and Leases and Allowance for Credit Losses - Commercial - Credit Quality Indicators (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases $ 1,205,035   $ 1,185,700
Total gross charge-offs 1,737 $ 1,733  
Estimate of Fair Value Measurement      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 3,757   3,498
Small Business Card Loans | United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Total gross charge-offs 146   555
Commercial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 724,999   702,109
Total gross charge-offs 405 $ 378  
Commercial | Estimate of Fair Value Measurement      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 3,599   3,333
Commercial | United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 451,951   436,242
Originated in current fiscal year 15,833   62,009
Originated in fiscal year before current fiscal year 56,083   39,899
Originated two years before current fiscal year 36,698   24,576
Originated three years before current fiscal year 23,011   27,877
Originated four years before current fiscal year 27,020   16,612
Prior 53,831   38,718
Revolving Loans 239,475   226,551
Total gross charge-offs 141   536
Gross charge-offs, Originated in current fiscal year 0   3
Gross charge-offs, Originated in fiscal year before current fiscal year 3   13
Gross charge-offs, Originated two years before current fiscal year 3   35
Gross charge-offs, Originated three years before current fiscal year 9   101
Gross charge-offs, Originated four years before current fiscal year 23   12
Gross charge-offs, Prior 20   34
Gross charge-offs, Revolving Loans 83   338
Commercial | United States | Pass rated      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 439,963   424,708
Originated in current fiscal year 15,830   61,845
Originated in fiscal year before current fiscal year 55,863   39,127
Originated two years before current fiscal year 35,821   23,611
Originated three years before current fiscal year 21,994   26,931
Originated four years before current fiscal year 26,036   16,001
Prior 51,366   36,627
Revolving Loans 233,053   220,566
Commercial | United States | Reservable criticized      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 11,988   11,534
Originated in current fiscal year 3   164
Originated in fiscal year before current fiscal year 220   772
Originated two years before current fiscal year 877   965
Originated three years before current fiscal year 1,017   946
Originated four years before current fiscal year 984   611
Prior 2,465   2,091
Revolving Loans 6,422   5,985
Commercial | Non United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 160,722   155,045
Originated in current fiscal year 4,533   25,873
Originated in fiscal year before current fiscal year 24,364   21,563
Originated two years before current fiscal year 19,047   10,091
Originated three years before current fiscal year 9,457   8,923
Originated four years before current fiscal year 8,080   9,286
Prior 14,772   6,180
Revolving Loans 80,469   73,129
Total gross charge-offs 7   33
Gross charge-offs, Originated in current fiscal year 0   0
Gross charge-offs, Originated in fiscal year before current fiscal year 0   0
Gross charge-offs, Originated two years before current fiscal year 0   7
Gross charge-offs, Originated three years before current fiscal year 7   0
Gross charge-offs, Originated four years before current fiscal year 0   8
Gross charge-offs, Prior 0   0
Gross charge-offs, Revolving Loans 0   18
Commercial | Non United States | Pass rated      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 158,285   152,364
Originated in current fiscal year 4,533   25,753
Originated in fiscal year before current fiscal year 24,120   21,446
Originated two years before current fiscal year 18,941   9,613
Originated three years before current fiscal year 9,062   8,612
Originated four years before current fiscal year 7,894   9,223
Prior 14,597   6,066
Revolving Loans 79,138   71,651
Commercial | Non United States | Reservable criticized      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 2,437   2,681
Originated in current fiscal year 0   120
Originated in fiscal year before current fiscal year 244   117
Originated two years before current fiscal year 106   478
Originated three years before current fiscal year 395   311
Originated four years before current fiscal year 186   63
Prior 175   114
Revolving Loans 1,331   1,478
Commercial | Commercial real estate      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 69,615   68,748
Originated in current fiscal year 2,905   11,698
Originated in fiscal year before current fiscal year 11,852   5,856
Originated two years before current fiscal year 5,599   4,784
Originated three years before current fiscal year 4,355   10,430
Originated four years before current fiscal year 9,652   8,161
Prior 23,866   16,670
Revolving Loans 11,386   11,149
Total gross charge-offs 89   520
Gross charge-offs, Originated in current fiscal year 0   0
Gross charge-offs, Originated in fiscal year before current fiscal year 0   0
Gross charge-offs, Originated two years before current fiscal year 0   0
Gross charge-offs, Originated three years before current fiscal year 0   56
Gross charge-offs, Originated four years before current fiscal year 2   102
Gross charge-offs, Prior 87   360
Gross charge-offs, Revolving Loans 0   2
Commercial | Commercial real estate | Pass rated      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 61,998   60,435
Originated in current fiscal year 2,896   11,693
Originated in fiscal year before current fiscal year 11,847   5,607
Originated two years before current fiscal year 5,427   4,418
Originated three years before current fiscal year 4,107   8,136
Originated four years before current fiscal year 7,533   6,175
Prior 19,362   13,796
Revolving Loans 10,826   10,610
Commercial | Commercial real estate | Reservable criticized      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 7,617   8,313
Originated in current fiscal year 9   5
Originated in fiscal year before current fiscal year 5   249
Originated two years before current fiscal year 172   366
Originated three years before current fiscal year 248   2,294
Originated four years before current fiscal year 2,119   1,986
Prior 4,504   2,874
Revolving Loans 560   539
Commercial | Commercial real estate | United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 64,200   62,700
Commercial | Commercial real estate | Non United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 5,500   6,000
Commercial | Commercial Lease Financing      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 15,945   16,241
Originated in current fiscal year 591   3,929
Originated in fiscal year before current fiscal year 3,829   3,233
Originated two years before current fiscal year 3,007   2,894
Originated three years before current fiscal year 2,712   1,966
Originated four years before current fiscal year 1,767   1,661
Prior 4,039   2,558
Revolving Loans 0   0
Total gross charge-offs 13   8
Gross charge-offs, Originated in current fiscal year 0   0
Gross charge-offs, Originated in fiscal year before current fiscal year 0   2
Gross charge-offs, Originated two years before current fiscal year 1   3
Gross charge-offs, Originated three years before current fiscal year 6   2
Gross charge-offs, Originated four years before current fiscal year 4   1
Gross charge-offs, Prior 2   0
Gross charge-offs, Revolving Loans 0   0
Commercial | Commercial Lease Financing | Pass rated      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 15,401   15,770
Originated in current fiscal year 591   3,916
Originated in fiscal year before current fiscal year 3,805   3,142
Originated two years before current fiscal year 2,905   2,763
Originated three years before current fiscal year 2,561   1,847
Originated four years before current fiscal year 1,655   1,625
Prior 3,884   2,477
Revolving Loans 0   0
Commercial | Commercial Lease Financing | Reservable criticized      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 544   471
Originated in current fiscal year 0   13
Originated in fiscal year before current fiscal year 24   91
Originated two years before current fiscal year 102   131
Originated three years before current fiscal year 151   119
Originated four years before current fiscal year 112   36
Prior 155   81
Revolving Loans 0   0
Commercial | U.S. small business commercial | United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 11,840   11,560
Originated in current fiscal year 553   2,382
Originated in fiscal year before current fiscal year 2,410   2,008
Originated two years before current fiscal year 1,978   1,831
Originated three years before current fiscal year 1,791   1,566
Originated four years before current fiscal year 1,510   1,207
Prior 2,777   1,762
Revolving Loans 821   804
Total gross charge-offs 9   32
Gross charge-offs, Originated in current fiscal year 0   0
Gross charge-offs, Originated in fiscal year before current fiscal year 1   1
Gross charge-offs, Originated two years before current fiscal year 0   2
Gross charge-offs, Originated three years before current fiscal year 1   3
Gross charge-offs, Originated four years before current fiscal year 1   2
Gross charge-offs, Prior 2   6
Gross charge-offs, Revolving Loans 4   18
Commercial | U.S. small business commercial | United States | Pass rated      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 11,213   11,001
Originated in current fiscal year 553   2,368
Originated in fiscal year before current fiscal year 2,384   1,908
Originated two years before current fiscal year 1,863   1,657
Originated three years before current fiscal year 1,604   1,471
Originated four years before current fiscal year 1,407   1,131
Prior 2,588   1,670
Revolving Loans 814   796
Commercial | U.S. small business commercial | United States | Reservable criticized      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 627   559
Originated in current fiscal year 0   14
Originated in fiscal year before current fiscal year 26   100
Originated two years before current fiscal year 115   174
Originated three years before current fiscal year 187   95
Originated four years before current fiscal year 103   76
Prior 189   92
Revolving Loans 7   8
Commercial | Term Loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 710,073   687,836
Originated in current fiscal year 24,415   105,891
Originated in fiscal year before current fiscal year 98,538   72,559
Originated two years before current fiscal year 66,329   44,176
Originated three years before current fiscal year 41,326   50,762
Originated four years before current fiscal year 48,029   36,927
Prior 99,285   65,888
Revolving Loans 332,151   311,633
Total gross charge-offs 259   1,129
Gross charge-offs, Originated in current fiscal year 0   3
Gross charge-offs, Originated in fiscal year before current fiscal year 4   16
Gross charge-offs, Originated two years before current fiscal year 4   47
Gross charge-offs, Originated three years before current fiscal year 23   162
Gross charge-offs, Originated four years before current fiscal year 30   125
Gross charge-offs, Prior 111   400
Gross charge-offs, Revolving Loans 87   376
Commercial | Small Business Card Loans | Less than 620      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 798   785
Commercial | Small Business Card Loans | Greater than or equal to 620 and less than 660      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 656   651
Commercial | Small Business Card Loans | Greater than or equal to 660 and less than 740      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 3,700   3,600
Commercial | Small Business Card Loans | Greater than or equal to 740      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases 6,200   5,900
Commercial | Small Business Card Loans | United States      
Financing Receivable, Credit Quality Indicator [Line Items]      
Loans and leases $ 11,300   $ 10,900