Quarterly report pursuant to Section 13 or 15(d)

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

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Outstanding Loans and Leases - Consumer Real Estate - TDRs Entering Payment Default That Were Modified During the Preceding 12 Months (Details) - Consumer Real Estate
$ in Millions
 3 Months Ended
Mar. 31, 2016
USD ($)
payment
Mar. 31, 2015
USD ($)
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 477 $ 2,033
Modifications under government programs    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 93 108
Modifications under proprietary programs    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 65 52
Loans discharged in Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 45 81
Trial modifications    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 274 1,792
Loans in which customer did not response with payment to Department of Justice mailings   1,400
Residential Mortgage    
Financing Receivable, Modifications [Line Items]    
Number of missing payments causing default | payment 3  
Threshold period past due after modification of financing receivable 90 days  
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 413 1,986
Residential Mortgage | Modifications under government programs    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 93 107
Residential Mortgage | Modifications under proprietary programs    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 43 40
Residential Mortgage | Loans discharged in Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 40 71
Residential Mortgage | Trial modifications    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 237 1,768
Home equity    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 64 47
Home equity | Modifications under government programs    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 0 1
Home equity | Modifications under proprietary programs    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 22 12
Home equity | Loans discharged in Chapter 7 bankruptcy    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 5 10
Home equity | Trial modifications    
Financing Receivable, Modifications [Line Items]    
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 37 $ 24