Annual report [Section 13 and 15(d), not S-K Item 405]

Outstanding Loans and Leases and Allowance for Credit Losses - Modifications to Borrowers in Financial Difficulty and Financial Effect of Modified Loans (Details)

v3.25.4
Outstanding Loans and Leases and Allowance for Credit Losses - Modifications to Borrowers in Financial Difficulty and Financial Effect of Modified Loans (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Consumer real estate    
Financing Receivable, Modified [Line Items]    
Total $ 222 $ 264
As a % of Financing Receivables 0.08% 0.10%
Consumer real estate | Forbearance and Other Payment Plans    
Financing Receivable, Modified [Line Items]    
Total $ 44 $ 47
Consumer real estate | Permanent Modification    
Financing Receivable, Modified [Line Items]    
Total 178 217
Consumer real estate | Residential Mortgage    
Financing Receivable, Modified [Line Items]    
Total $ 201 $ 232
As a % of Financing Receivables 0.09% 0.10%
Consumer real estate | Residential Mortgage | Forbearance and Other Payment Plans    
Financing Receivable, Modified [Line Items]    
Total $ 44 $ 46
Weighted-average duration 5 months 7 months
Consumer real estate | Residential Mortgage | Permanent Modification    
Financing Receivable, Modified [Line Items]    
Total $ 157 $ 186
Weighted-average duration 10 years 9 years 7 months 6 days
Weighted-average Interest Rate Reduction 1.31% 1.25%
Consumer real estate | Home equity    
Financing Receivable, Modified [Line Items]    
Total $ 21 $ 32
As a % of Financing Receivables 0.08% 0.12%
Consumer real estate | Home equity | Forbearance and Other Payment Plans    
Financing Receivable, Modified [Line Items]    
Total $ 0 $ 1
Consumer real estate | Home equity | Permanent Modification    
Financing Receivable, Modified [Line Items]    
Total $ 21 $ 31
Weighted-average duration 14 years 1 month 6 days 17 years 8 months 12 days
Weighted-average Interest Rate Reduction 2.33% 2.61%
Commercial    
Financing Receivable, Modified [Line Items]    
Total $ 3,842 $ 3,948
As a % of Financing Receivables 0.58% 0.67%
Commercial | United States    
Financing Receivable, Modified [Line Items]    
Total $ 1,832 $ 1,528
As a % of Financing Receivables 0.42% 0.39%
Commercial | Non United States    
Financing Receivable, Modified [Line Items]    
Total $ 32 $ 27
As a % of Financing Receivables 0.02% 0.02%
Commercial | Term Extension    
Financing Receivable, Modified [Line Items]    
Total $ 3,208 $ 3,142
Commercial | Term Extension | United States    
Financing Receivable, Modified [Line Items]    
Total 1,791 1,266
Commercial | Term Extension | Non United States    
Financing Receivable, Modified [Line Items]    
Total 23 27
Commercial | Forbearances    
Financing Receivable, Modified [Line Items]    
Total 634 706
Commercial | Forbearances | United States    
Financing Receivable, Modified [Line Items]    
Total 41 262
Commercial | Forbearances | Non United States    
Financing Receivable, Modified [Line Items]    
Total 9 0
Commercial | Interest Rate Reduction    
Financing Receivable, Modified [Line Items]    
Total 0 100
Commercial | Interest Rate Reduction | United States    
Financing Receivable, Modified [Line Items]    
Total 0 0
Commercial | Interest Rate Reduction | Non United States    
Financing Receivable, Modified [Line Items]    
Total 0 0
Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total $ 1,978 $ 2,393
As a % of Financing Receivables 2.88% 3.64%
Commercial | Commercial real estate | Term Extension    
Financing Receivable, Modified [Line Items]    
Total $ 1,394 $ 1,849
Commercial | Commercial real estate | Forbearances    
Financing Receivable, Modified [Line Items]    
Total 584 444
Commercial | Commercial real estate | Interest Rate Reduction    
Financing Receivable, Modified [Line Items]    
Total $ 0 $ 100