v3.26.1
Loans and Allowance for Credit Losses - Amortized Cost Basis (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year $ 8,526 $ 9,876
Fiscal year before current fiscal year 7,258 5,566
Two years before current fiscal year 4,567 1,024
Three years before current fiscal year 390 898
Four years before current fiscal year 586 1,835
Prior 2,727 1,691
Revolving Loans 27,916 25,800
Total 51,970 46,690
Accrued interest receivable 284 338
Loans classified as held-for-sale 92 92
Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 49,152 42,256
Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 2,369 3,798
Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 156 242
Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 121 213
Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 172 181
Commercial and Financial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 8,526 9,810
Fiscal year before current fiscal year 7,189 5,525
Two years before current fiscal year 4,526 811
Three years before current fiscal year 177 550
Four years before current fiscal year 317 1,486
Prior 1,028 237
Revolving Loans 27,916 25,800
Total 49,679 44,219
Commercial and Financial | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 8,349 8,896
Fiscal year before current fiscal year 6,852 4,153
Two years before current fiscal year 3,702 692
Three years before current fiscal year 110 504
Four years before current fiscal year 283 1,313
Prior 958 119
Revolving Loans 27,620 25,177
Total 47,874 40,854
Commercial and Financial | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 173 911
Fiscal year before current fiscal year 337 1,224
Two years before current fiscal year 798 109
Three years before current fiscal year 33 46
Four years before current fiscal year 34 133
Prior 70 111
Revolving Loans 296 623
Total 1,741 3,157
Commercial and Financial | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 4 3
Fiscal year before current fiscal year 0 100
Two years before current fiscal year 26 0
Three years before current fiscal year 34 0
Four years before current fiscal year 0 0
Prior 0 7
Revolving Loans 0 0
Total 64 110
Commercial and Financial | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year   0
Fiscal year before current fiscal year   48
Two years before current fiscal year   0
Three years before current fiscal year   0
Four years before current fiscal year   0
Prior   0
Revolving Loans   0
Total 0 48
Commercial and Financial | 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   10
Three years before current fiscal year   0
Four years before current fiscal year   40
Prior   0
Revolving Loans   0
Total 0 50
Commercial real estate    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 66
Fiscal year before current fiscal year 69 41
Two years before current fiscal year 41 213
Three years before current fiscal year 213 348
Four years before current fiscal year 269 349
Prior 1,699 1,454
Revolving Loans 0 0
Total 2,291 2,471
Commercial real estate | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 0
Fiscal year before current fiscal year 0 41
Two years before current fiscal year 41 166
Three years before current fiscal year 166 328
Four years before current fiscal year 242 318
Prior 829 549
Revolving Loans 0 0
Total 1,278 1,402
Commercial real estate | Sub-investment grade    
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 47
Three years before current fiscal year 47 0
Four years before current fiscal year 27 31
Prior 554 563
Revolving Loans 0 0
Total 628 641
Commercial real estate | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Current fiscal year 0 66
Fiscal year before current fiscal year 69 0
Two years before current fiscal year 0 0
Three years before current fiscal year 0 20
Four years before current fiscal year 0 0
Prior 23 46
Revolving Loans 0 0
Total 92 132
Commercial real estate | 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 121 165
Revolving Loans 0 0
Total 121 165
Commercial real estate | Doubtful    
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 172 131
Revolving Loans 0 0
Total $ 172 $ 131