Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases and Allowance for Credit Losses - Consumer Real Estate - TDRs Entering Payment Default That Were Modified During the Preceding 12 Months (Details)

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Outstanding Loans and Leases and Allowance for Credit Losses - Consumer Real Estate - TDRs Entering Payment Default That Were Modified During the Preceding 12 Months (Details) - Consumer real estate - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Troubled debt restructurings entering payment default that were modified during the preceding twelve months $ 39 $ 42 $ 84 $ 64
Modifications under government programs        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Troubled debt restructurings entering payment default that were modified during the preceding twelve months 0 1 0 2
Modifications under proprietary programs        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Troubled debt restructurings entering payment default that were modified during the preceding twelve months 32 33 72 45
Loans discharged in Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Troubled debt restructurings entering payment default that were modified during the preceding twelve months 0 2 1 5
Trial modifications        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
Troubled debt restructurings entering payment default that were modified during the preceding twelve months $ 7 $ 6 $ 11 $ 12