v3.25.2
Loans - Wholesale Loan Portfolio, Internal Risk Ratings (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 1,345,473 $ 1,273,047 $ 1,299,590
Loans by origination year      
Total retained loans 1,345,473 1,273,047 1,299,590
Gross charge-offs by origination year      
Total gross charge-offs 5,760 5,107  
Wholesale      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 740,675 674,152 $ 690,396
% of investment-grade to total retained loans 67.63%   68.32%
% of total criticized to total retained loans 3.58%   3.67%
% of criticized nonaccrual to total retained loans 0.60%   0.57%
Loans by origination year      
Total retained loans $ 740,675 674,152 $ 690,396
Gross charge-offs by origination year      
Total gross charge-offs 604 $ 448  
Wholesale | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 500,897   471,670
Loans by origination year      
Total retained loans 500,897   471,670
Wholesale | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 239,778   218,726
Loans by origination year      
Total retained loans 239,778   218,726
Wholesale | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 213,238   193,356
Loans by origination year      
Total retained loans 213,238   193,356
Wholesale | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 22,061   21,428
Loans by origination year      
Total retained loans 22,061   21,428
Wholesale | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 4,479   3,942
Loans by origination year      
Total retained loans 4,479   3,942
Wholesale | Secured by real estate      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 164,222   $ 162,432
% of investment-grade to total retained loans 69.96%   70.36%
% of total criticized to total retained loans 6.68%   6.61%
% of criticized nonaccrual to total retained loans 0.90%   0.89%
Loans by origination year      
Term loans originated in 2025/2024 $ 9,646   $ 14,240
Term loans originated in 2024/2023 13,943   15,200
Term loans originated in 2023/2022 14,947   40,001
Term loans originated in 2022/2021 38,279   31,363
Term loans originated in 2021/2020 30,434   19,010
Term loans originated prior to 2021/2020 53,960   39,880
Revolving loans within the revolving period 2,919   2,645
Revolving loans converted to term loans 94   93
Total retained loans 164,222   162,432
Gross charge-offs by origination year      
Gross charge-offs originated in 2025/2024 0   72
Gross charge-offs originated in 2024/2023 0   18
Gross charge-offs originated in 2023/2022 1   43
Gross charge-offs originated in 2022/2021 10   2
Gross charge-offs originated in 2021/2020 34   109
Gross charge-offs originated prior to 2021/2020 100   80
Gross charge-offs originated within the revolving period 0   0
Gross charge-offs originated converted to term loans 0   0
Total gross charge-offs 145   324
Wholesale | Secured by real estate | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 114,896   114,280
Loans by origination year      
Term loans originated in 2025/2024 6,750   10,002
Term loans originated in 2024/2023 9,856   9,834
Term loans originated in 2023/2022 9,689   25,284
Term loans originated in 2022/2021 23,697   22,796
Term loans originated in 2021/2020 22,249   15,548
Term loans originated prior to 2021/2020 41,460   29,488
Revolving loans within the revolving period 1,195   1,328
Revolving loans converted to term loans 0   0
Total retained loans 114,896   114,280
Wholesale | Secured by real estate | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 49,326   48,152
Loans by origination year      
Term loans originated in 2025/2024 2,896   4,238
Term loans originated in 2024/2023 4,087   5,366
Term loans originated in 2023/2022 5,258   14,717
Term loans originated in 2022/2021 14,582   8,567
Term loans originated in 2021/2020 8,185   3,462
Term loans originated prior to 2021/2020 12,500   10,392
Revolving loans within the revolving period 1,724   1,317
Revolving loans converted to term loans 94   93
Total retained loans 49,326   48,152
Wholesale | Secured by real estate | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 38,355   37,422
Loans by origination year      
Total retained loans 38,355   37,422
Wholesale | Secured by real estate | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 9,494   9,291
Loans by origination year      
Total retained loans 9,494   9,291
Wholesale | Secured by real estate | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 1,477   $ 1,439
% of criticized nonaccrual to total retained loans 0.90%   0.89%
Loans by origination year      
Total retained loans $ 1,477   $ 1,439
Wholesale | Commercial and industrial      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 174,643   $ 166,790
% of investment-grade to total retained loans 39.82%   42.49%
% of total criticized to total retained loans 7.37%   7.64%
% of criticized nonaccrual to total retained loans 1.21%   1.06%
Loans by origination year      
Term loans originated in 2025/2024 $ 24,261   $ 32,815
Term loans originated in 2024/2023 22,223   17,635
Term loans originated in 2023/2022 13,393   17,530
Term loans originated in 2022/2021 14,127   8,441
Term loans originated in 2021/2020 5,866   1,850
Term loans originated prior to 2021/2020 2,709   2,114
Revolving loans within the revolving period 91,957   86,280
Revolving loans converted to term loans 107   125
Total retained loans 174,643   166,790
Gross charge-offs by origination year      
Gross charge-offs originated in 2025/2024 53   25
Gross charge-offs originated in 2024/2023 6   22
Gross charge-offs originated in 2023/2022 5   128
Gross charge-offs originated in 2022/2021 47   24
Gross charge-offs originated in 2021/2020 111   1
Gross charge-offs originated prior to 2021/2020 9   50
Gross charge-offs originated within the revolving period 160   270
Gross charge-offs originated converted to term loans 5   5
Total gross charge-offs 396   525
Wholesale | Commercial and industrial | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 69,537   70,862
Loans by origination year      
Term loans originated in 2025/2024 8,240   11,564
Term loans originated in 2024/2023 5,194   6,285
Term loans originated in 2023/2022 4,192   6,588
Term loans originated in 2022/2021 5,830   3,119
Term loans originated in 2021/2020 2,567   1,067
Term loans originated prior to 2021/2020 1,575   1,139
Revolving loans within the revolving period 41,938   41,099
Revolving loans converted to term loans 1   1
Total retained loans 69,537   70,862
Wholesale | Commercial and industrial | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 105,106   95,928
Loans by origination year      
Term loans originated in 2025/2024 16,021   21,251
Term loans originated in 2024/2023 17,029   11,350
Term loans originated in 2023/2022 9,201   10,942
Term loans originated in 2022/2021 8,297   5,322
Term loans originated in 2021/2020 3,299   783
Term loans originated prior to 2021/2020 1,134   975
Revolving loans within the revolving period 50,019   45,181
Revolving loans converted to term loans 106   124
Total retained loans 105,106   95,928
Wholesale | Commercial and industrial | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 92,234   83,191
Loans by origination year      
Total retained loans 92,234   83,191
Wholesale | Commercial and industrial | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 10,762   10,977
Loans by origination year      
Total retained loans 10,762   10,977
Wholesale | Commercial and industrial | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 2,110   1,760
Loans by origination year      
Total retained loans 2,110   1,760
Wholesale | Other      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans $ 401,810   $ 361,174
% of investment-grade to total retained loans 78.76%   79.33%
% of total criticized to total retained loans 0.67%   0.53%
% of criticized nonaccrual to total retained loans 0.22%   0.21%
Loans by origination year      
Term loans originated in 2025/2024 $ 31,138   $ 42,268
Term loans originated in 2024/2023 27,710   24,287
Term loans originated in 2023/2022 20,836   19,190
Term loans originated in 2022/2021 16,433   9,584
Term loans originated in 2021/2020 8,426   9,998
Term loans originated prior to 2021/2020 16,432   9,268
Revolving loans within the revolving period 279,562   244,903
Revolving loans converted to term loans 1,273   1,676
Total retained loans 401,810   361,174
Gross charge-offs by origination year      
Gross charge-offs originated in 2025/2024 23   0
Gross charge-offs originated in 2024/2023 2   38
Gross charge-offs originated in 2023/2022 16   3
Gross charge-offs originated in 2022/2021 1   36
Gross charge-offs originated in 2021/2020 3   40
Gross charge-offs originated prior to 2021/2020 13   50
Gross charge-offs originated within the revolving period 5   6
Gross charge-offs originated converted to term loans 0   0
Total gross charge-offs 63   173
Wholesale | Other | Individuals and individual entities      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 122,900   114,800
Loans by origination year      
Total retained loans 122,900   114,800
Wholesale | Other | Financial institutions      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 108,400   94,000
Loans by origination year      
Total retained loans 108,400   94,000
Wholesale | Other | SPEs      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 107,700   92,500
Loans by origination year      
Total retained loans 107,700   92,500
Wholesale | Other | Investment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 316,464   286,528
Loans by origination year      
Term loans originated in 2025/2024 19,915   30,484
Term loans originated in 2024/2023 20,275   17,039
Term loans originated in 2023/2022 15,151   13,272
Term loans originated in 2022/2021 11,435   6,288
Term loans originated in 2021/2020 5,775   8,632
Term loans originated prior to 2021/2020 13,843   7,382
Revolving loans within the revolving period 229,054   201,949
Revolving loans converted to term loans 1,016   1,482
Total retained loans 316,464   286,528
Wholesale | Other | Total noninvestment-grade      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 85,346   74,646
Loans by origination year      
Term loans originated in 2025/2024 11,223   11,784
Term loans originated in 2024/2023 7,435   7,248
Term loans originated in 2023/2022 5,685   5,918
Term loans originated in 2022/2021 4,998   3,296
Term loans originated in 2021/2020 2,651   1,366
Term loans originated prior to 2021/2020 2,589   1,886
Revolving loans within the revolving period 50,508   42,954
Revolving loans converted to term loans 257   194
Total retained loans 85,346   74,646
Wholesale | Other | Noncriticized      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 82,649   72,743
Loans by origination year      
Total retained loans 82,649   72,743
Wholesale | Other | Criticized performing      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 1,805   1,160
Loans by origination year      
Total retained loans 1,805   1,160
Wholesale | Other | Criticized nonaccrual      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Total retained loans 892   743
Loans by origination year      
Total retained loans $ 892   $ 743