Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.1
Outstanding Loans and Leases and Allowance for Credit Losses - Payment Status of Modifications to Borrowers in Financial Difficulty (Details) - Consumer real estate
$ in Millions
Mar. 31, 2023
USD ($)
Financing Receivable, Modified [Line Items]  
Total $ 245
Current  
Financing Receivable, Modified [Line Items]  
Total 149
30–89 Days Past Due  
Financing Receivable, Modified [Line Items]  
Total 56
90+ Days Past Due  
Financing Receivable, Modified [Line Items]  
Total 40
Residential mortgage  
Financing Receivable, Modified [Line Items]  
Total 205
Residential mortgage | Current  
Financing Receivable, Modified [Line Items]  
Total 126
Residential mortgage | 30–89 Days Past Due  
Financing Receivable, Modified [Line Items]  
Total 49
Residential mortgage | 90+ Days Past Due  
Financing Receivable, Modified [Line Items]  
Total 30
Home equity  
Financing Receivable, Modified [Line Items]  
Total 40
Home equity | Current  
Financing Receivable, Modified [Line Items]  
Total 23
Home equity | 30–89 Days Past Due  
Financing Receivable, Modified [Line Items]  
Total 7
Home equity | 90+ Days Past Due  
Financing Receivable, Modified [Line Items]  
Total $ 10