v3.25.3
Loans and Allowance for Credit Losses - Amortized Cost Basis (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year $ 8,789 $ 8,718
Fiscal year before current fiscal year 6,628 2,627
Two years before current fiscal year 1,669 1,985
Three years before current fiscal year 1,113 3,319
Four years before current fiscal year 2,136 333
Prior 1,880 1,897
Revolving Loans 24,430 24,307
Total 46,645 43,186
Accrued interest receivable 334 327
Loans classified as held-for-sale 15 14
Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 40,901 37,800
Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 5,061 4,687
Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 245 249
Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 206 259
Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 232 191
Commercial and Financial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 44,096 40,344
Commercial and Financial | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 39,350 35,831
Commercial and Financial | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 4,473 4,278
Commercial and Financial | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 200 187
Commercial and Financial | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 32 48
Commercial and Financial | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 41 0
Commercial and Financial | Domestic    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 3,604 3,827
Fiscal year before current fiscal year 2,245 406
Two years before current fiscal year 348 255
Three years before current fiscal year 133 488
Four years before current fiscal year 266 59
Prior 268 352
Revolving Loans 17,893 18,180
Total 24,757 23,567
Commercial and Financial | Domestic | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 2,673 1,946
Fiscal year before current fiscal year 856 223
Two years before current fiscal year 184 89
Three years before current fiscal year 39 47
Four years before current fiscal year 32 6
Prior 173 197
Revolving Loans 17,432 18,044
Total 21,389 20,552
Commercial and Financial | Domestic | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 931 1,834
Fiscal year before current fiscal year 1,340 173
Two years before current fiscal year 164 154
Three years before current fiscal year 82 387
Four years before current fiscal year 234 53
Prior 95 155
Revolving Loans 461 136
Total 3,307 2,892
Commercial and Financial | Domestic | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 47
Fiscal year before current fiscal year 49 10
Two years before current fiscal year 0 0
Three years before current fiscal year 0 54
Four years before current fiscal year 0 0
Prior 0 0
Revolving Loans 0 0
Total 49 111
Commercial and Financial | Domestic | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
Fiscal year before current fiscal year 0 0
Two years before current fiscal year 0 12
Three years before current fiscal year 12 0
Four years before current fiscal year 0 0
Prior 0 0
Revolving Loans 0 0
Total 12 12
Commercial and Financial | Non-U.S.    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 5,118 4,850
Fiscal year before current fiscal year 4,342 2,005
Two years before current fiscal year 1,106 1,222
Three years before current fiscal year 616 2,484
Four years before current fiscal year 1,522 46
Prior 98 43
Revolving Loans 6,537 6,127
Total 19,339 16,777
Commercial and Financial | Non-U.S. | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 4,796 4,243
Fiscal year before current fiscal year 3,713 1,796
Two years before current fiscal year 1,052 1,152
Three years before current fiscal year 616 2,187
Four years before current fiscal year 1,368 0
Prior 0 0
Revolving Loans 6,416 5,901
Total 17,961 15,279
Commercial and Financial | Non-U.S. | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 275 607
Fiscal year before current fiscal year 556 174
Two years before current fiscal year 34 44
Three years before current fiscal year 0 246
Four years before current fiscal year 108 46
Prior 72 43
Revolving Loans 121 226
Total 1,166 1,386
Commercial and Financial | Non-U.S. | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 47 0
Fiscal year before current fiscal year 73 35
Two years before current fiscal year 0 26
Three years before current fiscal year 0 15
Four years before current fiscal year 5 0
Prior 26 0
Revolving Loans 0 0
Total 151 76
Commercial and Financial | Non-U.S. | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
Fiscal year before current fiscal year 0 0
Two years before current fiscal year 20 0
Three years before current fiscal year 0 36
Four years before current fiscal year 0 0
Prior 0 0
Revolving Loans 0 0
Total 20 36
Commercial and Financial | Non-U.S. | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0  
Fiscal year before current fiscal year 0  
Two years before current fiscal year 0  
Three years before current fiscal year 0  
Four years before current fiscal year 41  
Prior 0  
Revolving Loans 0  
Total 41  
Commercial real estate    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 2,549 2,842
Commercial real estate | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,551 1,969
Commercial real estate | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 588 409
Commercial real estate | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 45 62
Commercial real estate | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 174 211
Commercial real estate | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 191 191
Commercial real estate | Domestic    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 67 41
Fiscal year before current fiscal year 41 216
Two years before current fiscal year 215 508
Three years before current fiscal year 364 347
Four years before current fiscal year 348 228
Prior 1,514 1,502
Revolving Loans 0 0
Total 2,549 2,842
Commercial real estate | Domestic | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 41
Fiscal year before current fiscal year 41 63
Two years before current fiscal year 168 488
Three years before current fiscal year 344 278
Four years before current fiscal year 317 128
Prior 681 971
Revolving Loans 0 0
Total 1,551 1,969
Commercial real estate | Domestic | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
Fiscal year before current fiscal year 0 153
Two years before current fiscal year 47 20
Three years before current fiscal year 20 69
Four years before current fiscal year 31 100
Prior 490 67
Revolving Loans 0 0
Total 588 409
Commercial real estate | Domestic | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
Fiscal year before current fiscal year 0 0
Two years before current fiscal year 0 0
Three years before current fiscal year 0 0
Four years before current fiscal year 0 0
Prior 45 62
Revolving Loans 0 0
Total 45 62
Commercial real estate | Domestic | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
Fiscal year before current fiscal year 0 0
Two years before current fiscal year 0 0
Three years before current fiscal year 0 0
Four years before current fiscal year 0 0
Prior 174 211
Revolving Loans 0 0
Total 174 211
Commercial real estate | Domestic | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 67 0
Fiscal year before current fiscal year 0 0
Two years before current fiscal year 0 0
Three years before current fiscal year 0 0
Four years before current fiscal year 0 0
Prior 124 191
Revolving Loans 0 0
Total $ 191 $ 191