Quarterly report [Sections 13 or 15(d)]

Outstanding Loans and Leases and Allowance for Credit Losses - Loan Modifications to Borrowers in Financial Difficulty, Narrative (Details)

v3.26.1
Outstanding Loans and Leases and Allowance for Credit Losses - Loan Modifications to Borrowers in Financial Difficulty, Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Trial Modifications | Minimum      
Financing Receivable, Modified [Line Items]      
Term for contractual payments 3 months    
Trial Modifications | Maximum      
Financing Receivable, Modified [Line Items]      
Term for contractual payments 4 months    
Consumer real estate      
Financing Receivable, Modified [Line Items]      
Real estate acquired through foreclosure $ 58   $ 58
Loans with formal foreclosure proceeding in process 422   $ 411
Reclassified consumer real estate loans 11 $ 12  
Modifications in period $ 161 $ 57  
Total financing receivable percentage 0.06% 0.02%  
Modifications over the last 12 months $ 331 $ 239  
Consumer real estate | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 136 138  
Consumer real estate | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 36 48  
Consumer real estate | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 159 53  
Consumer real estate | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modifications in period 41 49  
Consumer real estate | Forbearance and Other Payment Plans      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 120 8  
Consumer real estate | Residential Mortgage And Home Equity Loan | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modified term 30 years    
Consumer real estate | Residential Mortgage      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 154 $ 50  
Total financing receivable percentage 0.07% 0.02%  
Modifications over the last 12 months $ 311 $ 208  
Consumer real estate | Residential Mortgage | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 120 111  
Consumer real estate | Residential Mortgage | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 35 46  
Consumer real estate | Residential Mortgage | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 156 51  
Consumer real estate | Residential Mortgage | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 37 $ 42  
Weighted-average Interest Rate Reduction 1.62% 1.41%  
Consumer real estate | Residential Mortgage | Permanent Modification | Minimum      
Financing Receivable, Modified [Line Items]      
Modified term 1 year    
Consumer real estate | Residential Mortgage | Permanent Modification | Maximum      
Financing Receivable, Modified [Line Items]      
Modified term 20 years    
Consumer real estate | Residential Mortgage | Forbearance and Other Payment Plans      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 117 $ 8  
Consumer real estate | Home equity      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 7 $ 7  
Total financing receivable percentage 0.03% 0.03%  
Modifications over the last 12 months $ 20 $ 31  
Consumer real estate | Home equity | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 16 27  
Consumer real estate | Home equity | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 1 2  
Consumer real estate | Home equity | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 3 2  
Consumer real estate | Home equity | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 4 $ 7  
Weighted-average Interest Rate Reduction 3.69% 1.99%  
Consumer real estate | Home equity | Permanent Modification | Minimum      
Financing Receivable, Modified [Line Items]      
Modified term 1 year    
Consumer real estate | Home equity | Permanent Modification | Maximum      
Financing Receivable, Modified [Line Items]      
Modified term 20 years    
Consumer real estate | Home equity | Forbearance and Other Payment Plans      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 3 $ 0  
Credit card and other consumer      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 238 $ 217  
Total financing receivable percentage 0.11% 0.11%  
Weighted-average Interest Rate Reduction 17.74% 18.37%  
Modifications over the last 12 months $ 715 $ 632  
Credit card and other consumer | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 609 530  
Credit card and other consumer | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 59 54  
Credit card and other consumer | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months $ 47 48  
Credit card and other consumer | Interest Rate Reduction      
Financing Receivable, Modified [Line Items]      
Term for contractual payments 60 months    
Credit card and other consumer | Interest Rate Reduction | Minimum      
Financing Receivable, Modified [Line Items]      
Term for contractual payments 6 months    
Credit card and other consumer | Interest Rate Reduction | Maximum      
Financing Receivable, Modified [Line Items]      
Term for contractual payments 72 months    
Credit card and other consumer | Principal Forgiveness      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 25 25  
Commercial      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 1,284 $ 1,383  
Total financing receivable percentage 0.19% 0.23%  
Modifications over the last 12 months $ 3,920 $ 4,106  
Commercial | United States      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 829 $ 302  
Total financing receivable percentage 0.18% 0.08%  
Modifications over the last 12 months $ 2,395 $ 1,265  
Commercial | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 2,562 3,240  
Commercial | Current | United States      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 1,564 1,189  
Commercial | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 658 139  
Commercial | 30–89 Days Past Due | United States      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 658 27  
Commercial | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 700 727  
Commercial | 90+ Days Past Due | United States      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 173 49  
Commercial | Interest Rate Reduction      
Financing Receivable, Modified [Line Items]      
Modifications in period 0 0  
Commercial | Interest Rate Reduction | United States      
Financing Receivable, Modified [Line Items]      
Modifications in period 0 0  
Commercial | Payment Deferral      
Financing Receivable, Modified [Line Items]      
Modifications in period 364 463  
Commercial | Payment Deferral | United States      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 44 $ 33