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

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

v3.25.0.1
Outstanding Loans and Leases and Allowance for Credit Losses - Payment Status of Modifications to Borrowers in Financial Difficulty (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Consumer real estate    
Financing Receivable, Modified [Line Items]    
Total $ 264 $ 671
Consumer real estate | Current    
Financing Receivable, Modified [Line Items]    
Total 151 392
Consumer real estate | 30–89 Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 56 106
Consumer real estate | 90+ Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 57 173
Consumer real estate | Residential Mortgage    
Financing Receivable, Modified [Line Items]    
Total 232 583
Consumer real estate | Residential Mortgage | Current    
Financing Receivable, Modified [Line Items]    
Total 123 334
Consumer real estate | Residential Mortgage | 30–89 Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 54 101
Consumer real estate | Residential Mortgage | 90+ Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 55 148
Consumer real estate | Home equity    
Financing Receivable, Modified [Line Items]    
Total 32 88
Consumer real estate | Home equity | Current    
Financing Receivable, Modified [Line Items]    
Total 28 58
Consumer real estate | Home equity | 30–89 Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 2 5
Consumer real estate | Home equity | 90+ Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 2 25
Commercial    
Financing Receivable, Modified [Line Items]    
Total 3,948 3,278
Commercial | United States    
Financing Receivable, Modified [Line Items]    
Total 1,528 1,046
Commercial | Non United States    
Financing Receivable, Modified [Line Items]    
Total 27 160
Commercial | Current    
Financing Receivable, Modified [Line Items]    
Total 3,473 2,780
Commercial | Current | United States    
Financing Receivable, Modified [Line Items]    
Total 1,346 1,015
Commercial | Current | Non United States    
Financing Receivable, Modified [Line Items]    
Total 27 157
Commercial | 30–89 Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 160 128
Commercial | 30–89 Days Past Due | United States    
Financing Receivable, Modified [Line Items]    
Total 70 3
Commercial | 30–89 Days Past Due | Non United States    
Financing Receivable, Modified [Line Items]    
Total 0 3
Commercial | 90+ Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 315 370
Commercial | 90+ Days Past Due | United States    
Financing Receivable, Modified [Line Items]    
Total 112 28
Commercial | 90+ Days Past Due | Non United States    
Financing Receivable, Modified [Line Items]    
Total 0 0
Commercial | Commercial real estate    
Financing Receivable, Modified [Line Items]    
Total 2,393 2,072
Commercial | Commercial real estate | Current    
Financing Receivable, Modified [Line Items]    
Total 2,100 1,608
Commercial | Commercial real estate | 30–89 Days Past Due    
Financing Receivable, Modified [Line Items]    
Total 90 122
Commercial | Commercial real estate | 90+ Days Past Due    
Financing Receivable, Modified [Line Items]    
Total $ 203 $ 342