v3.26.1
Loans - Wholesale Loan Portfolio, Internal Risk Ratings and Gross Charge-offs (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 1,463,808 $ 1,345,473 $ 1,408,905
Loans by origination year      
Total retained loans 1,463,808 1,345,473 1,408,905
Gross charge-offs by origination year      
Total gross charge-offs 5,906 5,760  
Wholesale      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 846,804 740,675 $ 792,367
% of investment-grade to total retained loans 68.05%   68.32%
% of total criticized to total retained loans 3.46%   3.63%
% of criticized nonaccrual to total retained loans 0.49%   0.56%
Loans by origination year      
Total retained loans $ 846,804 740,675 $ 792,367
Gross charge-offs by origination year      
Total gross charge-offs 418 $ 604  
Wholesale | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 576,208   541,364
Loans by origination year      
Total retained loans 576,208   541,364
Wholesale | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 270,596   251,003
Loans by origination year      
Total retained loans 270,596   251,003
Wholesale | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 241,332   222,249
Loans by origination year      
Total retained loans 241,332   222,249
Wholesale | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 25,073   24,356
Loans by origination year      
Total retained loans 25,073   24,356
Wholesale | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 4,191   4,398
Loans by origination year      
Total retained loans 4,191   4,398
Wholesale | Secured by real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 166,212   $ 165,545
% of investment-grade to total retained loans 71.69%   71.81%
% of total criticized to total retained loans 6.22%   6.37%
% of criticized nonaccrual to total retained loans 0.92%   1.01%
Loans by origination year      
Term loans originated in 2026/2025 $ 14,394   $ 24,172
Term loans originated in 2025/2024 23,481   12,472
Term loans originated in 2024/2023 11,743   13,579
Term loans originated in 2023/2022 11,686   34,916
Term loans originated in 2022/2021 32,372   28,644
Term loans originated prior to 2022/2021 68,705   48,370
Revolving loans within the revolving period 3,739   3,299
Revolving loans converted to term loans 92   93
Total retained loans 166,212   165,545
Gross charge-offs by origination year      
Gross charge-offs originated in 2026/2025 0   0
Gross charge-offs originated in 2025/2024 0   54
Gross charge-offs originated in 2024/2023 0   13
Gross charge-offs originated in 2023/2022 4   92
Gross charge-offs originated in 2022/2021 7   119
Gross charge-offs originated prior to 2022/2021 38   141
Gross charge-offs originated within the revolving period 0   1
Gross charge-offs originated converted to term loans 0   0
Total gross charge-offs 49   420
Wholesale | Secured by real estate | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 119,162   118,875
Loans by origination year      
Term loans originated in 2026/2025 10,855   17,242
Term loans originated in 2025/2024 16,983   9,440
Term loans originated in 2024/2023 8,982   9,187
Term loans originated in 2023/2022 8,069   22,472
Term loans originated in 2022/2021 21,176   22,019
Term loans originated prior to 2022/2021 51,747   37,392
Revolving loans within the revolving period 1,350   1,123
Revolving loans converted to term loans 0   0
Total retained loans 119,162   118,875
Wholesale | Secured by real estate | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 47,050   46,670
Loans by origination year      
Term loans originated in 2026/2025 3,539   6,930
Term loans originated in 2025/2024 6,498   3,032
Term loans originated in 2024/2023 2,761   4,392
Term loans originated in 2023/2022 3,617   12,444
Term loans originated in 2022/2021 11,196   6,625
Term loans originated prior to 2022/2021 16,958   10,978
Revolving loans within the revolving period 2,389   2,176
Revolving loans converted to term loans 92   93
Total retained loans 47,050   46,670
Wholesale | Secured by real estate | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 36,711   36,120
Loans by origination year      
Total retained loans 36,711   36,120
Wholesale | Secured by real estate | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 8,816   8,872
Loans by origination year      
Total retained loans 8,816   8,872
Wholesale | Secured by real estate | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 1,523   $ 1,678
% of criticized nonaccrual to total retained loans 0.92%   1.01%
Loans by origination year      
Total retained loans $ 1,523   $ 1,678
Wholesale | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 190,526   $ 174,403
% of investment-grade to total retained loans 38.48%   38.38%
% of total criticized to total retained loans 8.56%   8.37%
% of criticized nonaccrual to total retained loans 1.11%   1.12%
Loans by origination year      
Term loans originated in 2026/2025 $ 30,502   $ 49,092
Term loans originated in 2025/2024 37,353   18,794
Term loans originated in 2024/2023 14,144   8,967
Term loans originated in 2023/2022 7,644   9,952
Term loans originated in 2022/2021 6,091   3,842
Term loans originated prior to 2022/2021 4,438   2,050
Revolving loans within the revolving period 90,264   81,605
Revolving loans converted to term loans 90   101
Total retained loans 190,526   174,403
Gross charge-offs by origination year      
Gross charge-offs originated in 2026/2025 0   43
Gross charge-offs originated in 2025/2024 62   64
Gross charge-offs originated in 2024/2023 2   11
Gross charge-offs originated in 2023/2022 29   151
Gross charge-offs originated in 2022/2021 22   129
Gross charge-offs originated prior to 2022/2021 25   26
Gross charge-offs originated within the revolving period 108   461
Gross charge-offs originated converted to term loans 4   8
Total gross charge-offs 252   893
Wholesale | Commercial and industrial | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 73,314   66,942
Loans by origination year      
Term loans originated in 2026/2025 13,207   16,186
Term loans originated in 2025/2024 9,714   5,418
Term loans originated in 2024/2023 3,877   3,040
Term loans originated in 2023/2022 2,781   4,352
Term loans originated in 2022/2021 2,424   1,836
Term loans originated prior to 2022/2021 2,187   1,225
Revolving loans within the revolving period 39,123   34,884
Revolving loans converted to term loans 1   1
Total retained loans 73,314   66,942
Wholesale | Commercial and industrial | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 117,212   107,461
Loans by origination year      
Term loans originated in 2026/2025 17,295   32,906
Term loans originated in 2025/2024 27,639   13,376
Term loans originated in 2024/2023 10,267   5,927
Term loans originated in 2023/2022 4,863   5,600
Term loans originated in 2022/2021 3,667   2,006
Term loans originated prior to 2022/2021 2,251   825
Revolving loans within the revolving period 51,141   46,721
Revolving loans converted to term loans 89   100
Total retained loans 117,212   107,461
Wholesale | Commercial and industrial | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 100,897   92,856
Loans by origination year      
Total retained loans 100,897   92,856
Wholesale | Commercial and industrial | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 14,195   12,651
Loans by origination year      
Total retained loans 14,195   12,651
Wholesale | Commercial and industrial | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 2,120   1,954
Loans by origination year      
Total retained loans 2,120   1,954
Wholesale | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 490,066   $ 452,419
% of investment-grade to total retained loans 78.30%   78.59%
% of total criticized to total retained loans 0.53%   0.80%
% of criticized nonaccrual to total retained loans 0.11%   0.17%
Loans by origination year      
Term loans originated in 2026/2025 $ 42,663   $ 59,235
Term loans originated in 2025/2024 40,422   19,579
Term loans originated in 2024/2023 14,612   12,364
Term loans originated in 2023/2022 9,814   14,917
Term loans originated in 2022/2021 13,130   7,587
Term loans originated prior to 2022/2021 19,245   14,320
Revolving loans within the revolving period 347,579   324,245
Revolving loans converted to term loans 2,601   172
Total retained loans 490,066   452,419
Gross charge-offs by origination year      
Gross charge-offs originated in 2026/2025 0   46
Gross charge-offs originated in 2025/2024 0   195
Gross charge-offs originated in 2024/2023 86   32
Gross charge-offs originated in 2023/2022 1   2
Gross charge-offs originated in 2022/2021 0   9
Gross charge-offs originated prior to 2022/2021 20   58
Gross charge-offs originated within the revolving period 10   26
Gross charge-offs originated converted to term loans 0   106
Total gross charge-offs 117   474
Wholesale | Other | Financial institutions      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 254,500   245,100
Loans by origination year      
Total retained loans 254,500   245,100
Wholesale | Other | Individuals and individual entities      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 163,100   141,100
Loans by origination year      
Total retained loans 163,100   141,100
Wholesale | Other | SPEs      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 6,500   7,400
Loans by origination year      
Total retained loans 6,500   7,400
Wholesale | Other | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 383,732   355,547
Loans by origination year      
Term loans originated in 2026/2025 29,604   43,073
Term loans originated in 2025/2024 27,905   13,123
Term loans originated in 2024/2023 9,653   7,939
Term loans originated in 2023/2022 5,941   10,838
Term loans originated in 2022/2021 9,494   5,574
Term loans originated prior to 2022/2021 15,499   11,757
Revolving loans within the revolving period 283,093   263,150
Revolving loans converted to term loans 2,543   93
Total retained loans 383,732   355,547
Wholesale | Other | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 106,334   96,872
Loans by origination year      
Term loans originated in 2026/2025 13,059   16,162
Term loans originated in 2025/2024 12,517   6,456
Term loans originated in 2024/2023 4,959   4,425
Term loans originated in 2023/2022 3,873   4,079
Term loans originated in 2022/2021 3,636   2,013
Term loans originated prior to 2022/2021 3,746   2,563
Revolving loans within the revolving period 64,486   61,095
Revolving loans converted to term loans 58   79
Total retained loans 106,334   96,872
Wholesale | Other | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 103,724   93,273
Loans by origination year      
Total retained loans 103,724   93,273
Wholesale | Other | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 2,062   2,833
Loans by origination year      
Total retained loans 2,062   2,833
Wholesale | Other | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 548   766
Loans by origination year      
Total retained loans $ 548   $ 766