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 9 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
payment
Sep. 30, 2015
USD ($)
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 294 $ 670 $ 1,147 $ 3,413
Modifications under government programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 51 119 230 327
Modifications under proprietary programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 40 98 145 194
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 42 77 124 229
Trial modifications        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 161 376 $ 648 2,663
Loans in which customer did not response with payment to Department of Justice mailings   59   1,600
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 253 598 $ 1,001 3,250
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 50 117 228 323
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 29 97 107 175
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 36 57 107 189
Residential Mortgage | Trial modifications        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 138 327 559 2,563
Home equity        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 41 72 146 163
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 1 2 2 4
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 11 1 38 19
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 6 20 17 40
Home equity | Trial modifications        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 23 $ 49 $ 89 $ 100