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)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
Jun. 30, 2015
USD ($)
payment
Jun. 30, 2014
USD ($)
Financing Receivable, Modifications [Line Items]        
Loans in default sold or disposed of by the company     $ 771 $ 545
Consumer Real Estate        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 710 $ 1,118 2,743 2,449
Consumer Real Estate | Modifications under government programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 100 187 208 346
Consumer Real Estate | Modifications under proprietary programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 44 206 96 478
Consumer Real Estate | 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 71 194 152 316
Consumer Real Estate | Trial modifications        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 495 531 2,287 1,309
Loans in which customer did not response with payment to Department of Justice mailings 116   $ 1,500  
Residential Mortgage | Consumer Real Estate        
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 666 1,058 $ 2,652 2,384
Residential Mortgage | Consumer Real Estate | Modifications under government programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 99 186 206 344
Residential Mortgage | Consumer Real Estate | Modifications under proprietary programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 38 203 78 475
Residential Mortgage | Consumer Real Estate | 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 61 153 132 274
Residential Mortgage | Consumer Real Estate | Trial modifications        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 468 516 2,236 1,291
Home equity | Consumer Real Estate        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 44 60 91 65
Home equity | Consumer Real Estate | Modifications under government programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 1 1 2 2
Home equity | Consumer Real Estate | Modifications under proprietary programs        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months 6 3 18 3
Home equity | Consumer Real Estate | 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 10 41 20 42
Home equity | Consumer Real Estate | Trial modifications        
Financing Receivable, Modifications [Line Items]        
Trouble debt restructurings entered payment default that were modified during the preceding twelve months $ 27 $ 15 $ 51 $ 18