Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Troubled Debt Restructurings, Narrative (Details)

v3.21.1
Outstanding Loans and Leases and Allowance for Credit Losses - Troubled Debt Restructurings, Narrative (Details)
$ in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
payment
Dec. 31, 2020
USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]    
Loans and leases $ 903,088 $ 927,861
Consumer real estate    
Financing Receivable, Credit Quality Indicator [Line Items]    
Loans and leases 32,078 34,311
Real estate acquired through foreclosure 101 $ 123
Loans with formal foreclosure proceeding in process 1,100  
Reclassified consumer real estate loans $ 10  
Number of missing payments causing default | payment 3  
Consumer real estate | Chapter Seven Bankruptcy    
Financing Receivable, Credit Quality Indicator [Line Items]    
Loans and leases $ 358  
Nonperforming Loans | Consumer real estate | Chapter Seven Bankruptcy | US Government Sponsored-Enterprise Insured Loans | Federal Housing Administration    
Financing Receivable, Credit Quality Indicator [Line Items]    
Real estate acquired through foreclosure 103  
Performing Financial Instruments | Consumer real estate | Chapter Seven Bankruptcy | US Government Sponsored-Enterprise Insured Loans | Federal Housing Administration    
Financing Receivable, Credit Quality Indicator [Line Items]    
Loans and leases $ 65