Quarterly report [Sections 13 or 15(d)]

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

v3.25.1
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
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Consumer real estate    
Financing Receivable, Modified [Line Items]    
Total $ 57 $ 87
As a % of Financing Receivables 0.02% 0.03%
Consumer real estate | Forbearance and Other Payment Plans    
Financing Receivable, Modified [Line Items]    
Total $ 8 $ 20
Consumer real estate | Permanent Modification    
Financing Receivable, Modified [Line Items]    
Total 49 67
Consumer real estate | Residential Mortgage    
Financing Receivable, Modified [Line Items]    
Total $ 50 $ 78
As a % of Financing Receivables 0.02% 0.03%
Consumer real estate | Residential Mortgage | Forbearance and Other Payment Plans    
Financing Receivable, Modified [Line Items]    
Total $ 8 $ 20
Weighted-average duration 4 months 4 months
Consumer real estate | Residential Mortgage | Permanent Modification    
Financing Receivable, Modified [Line Items]    
Total $ 42 $ 58
Weighted-average duration 9 years 9 months 18 days 9 years 3 months 18 days
Weighted-average Interest Rate Reduction 1.41% 1.28%
Consumer real estate | Home equity    
Financing Receivable, Modified [Line Items]    
Total $ 7 $ 9
As a % of Financing Receivables 0.03% 0.04%
Consumer real estate | Home equity | Forbearance and Other Payment Plans    
Financing Receivable, Modified [Line Items]    
Total $ 0 $ 0
Consumer real estate | Home equity | Permanent Modification    
Financing Receivable, Modified [Line Items]    
Total $ 7 $ 9
Weighted-average duration 18 years 4 months 24 days 16 years
Weighted-average Interest Rate Reduction 1.99% 2.84%
Commercial    
Financing Receivable, Modified [Line Items]    
Total $ 1,383 $ 1,472
As a % of Financing Receivables 0.23% 0.34%
Commercial | United States    
Financing Receivable, Modified [Line Items]    
Total $ 302 $ 376
As a % of Financing Receivables 0.08% 0.10%
Commercial | Non United States    
Financing Receivable, Modified [Line Items]    
Total $ 24  
As a % of Financing Receivables 0.02%  
Commercial | Term Extension    
Financing Receivable, Modified [Line Items]    
Total $ 920 $ 951
Commercial | Term Extension | United States    
Financing Receivable, Modified [Line Items]    
Total 269 370
Commercial | Term Extension | Non United States    
Financing Receivable, Modified [Line Items]    
Total 15  
Commercial | Forbearances    
Financing Receivable, Modified [Line Items]    
Total 463 485
Commercial | Forbearances | United States    
Financing Receivable, Modified [Line Items]    
Total 33 6
Commercial | Forbearances | Non United States    
Financing Receivable, Modified [Line Items]    
Total 9  
Commercial | Interest Rate Reduction    
Financing Receivable, Modified [Line Items]    
Total 0 36
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  
Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total $ 1,057 $ 1,096
As a % of Financing Receivables 1.61% 1.53%
Commercial | Commercial real estate | Term Extension    
Financing Receivable, Modified [Line Items]    
Total $ 636 $ 581
Commercial | Commercial real estate | Forbearances    
Financing Receivable, Modified [Line Items]    
Total 421 479
Commercial | Commercial real estate | Interest Rate Reduction    
Financing Receivable, Modified [Line Items]    
Total $ 0 $ 36