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)

v3.25.1
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, 2025
Mar. 31, 2024
Dec. 31, 2024
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 $ 56   $ 60
Loans with formal foreclosure proceeding in process 467   $ 633
Reclassified consumer real estate loans 12 $ 30  
Modifications in period 57 87  
Modifications over the last 12 months 239 547  
Consumer real estate | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 138 355  
Consumer real estate | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 48 84  
Consumer real estate | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 53 108  
Consumer real estate | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modifications in period 49 67  
Consumer real estate | Forbearance and Other Payment Plans      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 8 20  
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 $ 50 78  
Modifications over the last 12 months 208 476  
Consumer real estate | Residential Mortgage | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 111 304  
Consumer real estate | Residential Mortgage | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 46 78  
Consumer real estate | Residential Mortgage | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 51 94  
Consumer real estate | Residential Mortgage | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 42 $ 58  
Weighted-average Interest Rate Reduction 1.41% 1.28%  
Weighted-average duration 9 years 9 months 18 days 9 years 3 months 18 days  
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 $ 8 $ 20  
Weighted-average duration 4 months 4 months  
Consumer real estate | Home equity      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 7 $ 9  
Modifications over the last 12 months 31 71  
Consumer real estate | Home equity | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 27 51  
Consumer real estate | Home equity | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 2 6  
Consumer real estate | Home equity | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 2 14  
Consumer real estate | Home equity | Permanent Modification      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 7 $ 9  
Weighted-average Interest Rate Reduction 1.99% 2.84%  
Weighted-average duration 18 years 4 months 24 days 16 years  
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 $ 0 $ 0  
Credit card and other consumer      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 217 $ 231  
Weighted-average Interest Rate Reduction 18.37% 19.80%  
Modifications over the last 12 months $ 632 $ 658  
Credit card and other consumer | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 530 537  
Credit card and other consumer | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 54 62  
Credit card and other consumer | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months $ 48 59  
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 28  
Commercial      
Financing Receivable, Modified [Line Items]      
Modifications in period 1,383 1,472  
Modifications over the last 12 months 4,106 3,447  
Commercial | United States      
Financing Receivable, Modified [Line Items]      
Modifications in period 302 376  
Modifications over the last 12 months 1,265 1,104  
Subsequent default for loans modified within the last 12 months 444    
Commercial | Current      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 3,240 2,764  
Commercial | Current | United States      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 1,189 1,046  
Commercial | 30–89 Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 139 326  
Commercial | 30–89 Days Past Due | United States      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 27 34  
Commercial | 90+ Days Past Due      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 727 357  
Commercial | 90+ Days Past Due | United States      
Financing Receivable, Modified [Line Items]      
Modifications over the last 12 months 49 24  
Commercial | Interest Rate Reduction      
Financing Receivable, Modified [Line Items]      
Modifications in period 0 36  
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 463 485  
Commercial | Payment Deferral | United States      
Financing Receivable, Modified [Line Items]      
Modifications in period $ 33 $ 6  
Commercial | Commercial loans      
Financing Receivable, Modified [Line Items]      
Weighted-average duration 1 year 7 months 6 days 1 year 3 months 18 days  
Lending commitments $ 86 $ 717  
Commercial | Commercial loans | Forbearance Program      
Financing Receivable, Modified [Line Items]      
Weighted-average duration 8 months 10 months  
Commercial | Commercial loans | Payment Deferral | Minimum      
Financing Receivable, Modified [Line Items]      
Weighted-average duration 8 months    
Commercial | Commercial loans | Payment Deferral | Maximum      
Financing Receivable, Modified [Line Items]      
Weighted-average duration 24 months