v3.26.1
Loans and Allowance for Credit Losses - Investments by Credit Quality (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans $ 51,970 $ 46,690
Overdrafts 5,240 1,960
Loans classified as held-for-sale 92 92
Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 49,152 42,256
Overdrafts 5,070  
Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 2,369 3,798
Overdrafts 170  
Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 156 242
Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 121 213
Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 172 181
Commercial and Financial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 49,679 44,219
Commercial and Financial | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 47,874 40,854
Commercial and Financial | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 1,741 3,157
Commercial and Financial | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 64 110
Commercial and Financial | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 0 48
Commercial and Financial | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 0 50
Commercial Real Estate    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 2,291 2,471
Commercial Real Estate | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 1,278 1,402
Commercial Real Estate | Sub-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 628 641
Commercial Real Estate | Special mention    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 92 132
Commercial Real Estate | Substandard    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans 121 165
Commercial Real Estate | Doubtful    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total Loans $ 172 $ 131