Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Consumer Real Estate - Modification Programs (Details)

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Outstanding Loans and Leases - Consumer Real Estate - Modification Programs (Details) - Consumer real estate - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total modifications $ 123 $ 160
Modifications under government programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total modifications 1 3
Modifications under proprietary programs    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total modifications 28 26
Loans discharged in Chapter 7 bankruptcy    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total modifications 15 28
Trial modifications    
Financing Receivable, Troubled Debt Restructuring [Line Items]    
Total modifications $ 79 $ 103