Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Nonperforming (Details)

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Outstanding Loans and Leases - Nonperforming (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Threshold period past due for nonperforming status of financing receivables     90 days   90 days
Loans and leases $ 916,666,000,000   $ 916,666,000,000   $ 906,683,000,000
Proceeds from sales     5,194,000,000 $ 11,391,000,000  
Purchased credit impaired loans sold 189,000,000 $ 150,000,000 189,000,000 324,000,000  
Nonperforming loans and leases 6,802,000,000   6,802,000,000   7,707,000,000
Accruing past due 90 days or more, including loans and leases held for sale 4,670,000,000   4,670,000,000   5,887,000,000
Residential Mortgage          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Accruing past due 90 days or more 1,300,000,000   1,300,000,000   1,800,000,000
Residential Mortgage | Federal Housing Administration          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Nonperforming loans and leases 2,400,000,000   2,400,000,000   3,000,000,000
90 Days or More Past Due          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 7,575,000,000   7,575,000,000    
Consumer Portfolio Segment          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 447,350,000,000   447,350,000,000    
Nonperforming loans and leases 5,282,000,000   5,282,000,000   6,004,000,000
Accruing past due 90 days or more, including loans and leases held for sale 4,506,000,000   4,506,000,000   5,679,000,000
Consumer Portfolio Segment | 90 Days or More Past Due          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 7,057,000,000   $ 7,057,000,000   8,727,000,000
Consumer real estate | Junior Lien Home Equity Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Threshold period past due for nonperforming status of financing receivables     90 days    
Consumer real estate | Core Portfolio, Residential Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 166,209,000,000   $ 166,209,000,000   156,497,000,000
Nonperforming loans and leases 1,051,000,000   1,051,000,000   1,274,000,000
Accruing past due 90 days or more 398,000,000   398,000,000   486,000,000
Consumer real estate | Core Portfolio, Home Equity Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 46,642,000,000   46,642,000,000   49,373,000,000
Nonperforming loans and leases 970,000,000   970,000,000   969,000,000
Accruing past due 90 days or more 0   0   0
Consumer real estate | Non-core Portfolio, Residential Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 21,963,000,000   21,963,000,000   25,173,000,000
Nonperforming loans and leases 1,528,000,000   1,528,000,000   1,782,000,000
Accruing past due 90 days or more 3,301,000,000   3,301,000,000   4,307,000,000
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 12,130,000,000   12,130,000,000   13,459,000,000
Nonperforming loans and leases 1,711,000,000   1,711,000,000   1,949,000,000
Accruing past due 90 days or more 0   0   0
Consumer real estate | 90 Days or More Past Due | Core Portfolio, Residential Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 1,029,000,000   1,029,000,000   1,213,000,000
Consumer real estate | 90 Days or More Past Due | Core Portfolio, Home Equity Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 427,000,000   427,000,000   451,000,000
Consumer real estate | 90 Days or More Past Due | Non-core Portfolio, Residential Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 4,113,000,000   4,113,000,000   5,343,000,000
Consumer real estate | 90 Days or More Past Due | Non-core Portfolio, Home Equity Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 677,000,000   677,000,000   832,000,000
Credit card and other consumer | Credit Card Receivable | United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 90,776,000,000   90,776,000,000   92,278,000,000
Accruing past due 90 days or more 772,000,000   772,000,000   782,000,000
Credit card and other consumer | Credit Card Receivable | Non United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Accruing past due 90 days or more, including loans and leases held for sale 0   0   66,000,000
Credit card and other consumer | Direct/Indirect Consumer          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 93,493,000,000   93,493,000,000   94,089,000,000
Nonperforming loans and leases 19,000,000   19,000,000   28,000,000
Accruing past due 90 days or more 32,000,000   32,000,000   34,000,000
Credit card and other consumer | Other consumer          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 2,658,000,000   2,658,000,000   2,499,000,000
Nonperforming loans and leases 3,000,000   3,000,000   2,000,000
Accruing past due 90 days or more 3,000,000   3,000,000   4,000,000
Credit card and other consumer | 90 Days or More Past Due | Credit Card Receivable | United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 772,000,000   772,000,000   782,000,000
Credit card and other consumer | 90 Days or More Past Due | Direct/Indirect Consumer          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 33,000,000   33,000,000   34,000,000
Credit card and other consumer | 90 Days or More Past Due | Other consumer          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 6,000,000   $ 6,000,000   6,000,000
Commercial Portfolio Segment          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Threshold period past due for nonperforming status of financing receivables     90 days    
Loans and leases 469,316,000,000   $ 469,316,000,000   458,526,000,000
Nonperforming loans and leases 1,520,000,000   1,520,000,000   1,703,000,000
Accruing past due 90 days or more 164,000,000   164,000,000   208,000,000
Commercial Portfolio Segment | United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 277,675,000,000   277,675,000,000   270,372,000,000
Nonperforming loans and leases 1,039,000,000   1,039,000,000   1,256,000,000
Accruing past due 90 days or more 74,000,000   74,000,000   106,000,000
Commercial Portfolio Segment | Non United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 90,786,000,000   90,786,000,000   89,397,000,000
Nonperforming loans and leases 269,000,000   269,000,000   279,000,000
Accruing past due 90 days or more 0   0   5,000,000
Commercial Portfolio Segment | Commercial Real Estate          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 59,177,000,000   59,177,000,000   57,355,000,000
Nonperforming loans and leases 123,000,000   123,000,000   72,000,000
Accruing past due 90 days or more 0   0   7,000,000
Commercial Portfolio Segment | Commercial Real Estate | United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 55,600,000,000   55,600,000,000   54,300,000,000
Commercial Portfolio Segment | Commercial Real Estate | Non United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 3,600,000,000   3,600,000,000   3,100,000,000
Commercial Portfolio Segment | Commercial Lease Financing          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 21,828,000,000   21,828,000,000   22,375,000,000
Nonperforming loans and leases 28,000,000   28,000,000   36,000,000
Accruing past due 90 days or more 22,000,000   22,000,000   19,000,000
Commercial Portfolio Segment | Small Business Commercial          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Nonperforming loans and leases 61,000,000   61,000,000   60,000,000
Accruing past due 90 days or more 68,000,000   68,000,000   71,000,000
Commercial Portfolio Segment | Small Business Commercial | United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 13,560,000,000   13,560,000,000   12,993,000,000
Commercial Portfolio Segment | 90 Days or More Past Due          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 518,000,000   518,000,000   572,000,000
Commercial Portfolio Segment | 90 Days or More Past Due | United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 361,000,000   361,000,000   400,000,000
Commercial Portfolio Segment | 90 Days or More Past Due | Non United States          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 0   0   5,000,000
Commercial Portfolio Segment | 90 Days or More Past Due | Commercial Real Estate          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 50,000,000   50,000,000   56,000,000
Commercial Portfolio Segment | 90 Days or More Past Due | Commercial Lease Financing          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 27,000,000   27,000,000   27,000,000
Commercial Portfolio Segment | 90 Days or More Past Due | Small Business Commercial          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 80,000,000   80,000,000   84,000,000
Nonperforming Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Transfer of nonperforming loans to held-for-sale     198,000,000 0  
Nonperforming Financing Receivable | Junior Lien Home Equity Financing Receivable          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases 374,000,000   $ 374,000,000   $ 428,000,000
Nonperforming Financing Receivable | Chapter Seven Bankruptcy          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Threshold period past due for nonperforming status of financing receivables     90 days    
Non-performing troubled debt with no change in repayment terms at time of discharge, current with contractual payments $ 274,000,000   $ 274,000,000    
Nonperforming loans discharged more than twelve months prior (greater than) 81.00%   81.00%    
Nonperforming loans discharged more than twenty four months prior (greater than) 71.00%   71.00%    
Nonperforming Financing Receivable | Chapter Seven Bankruptcy | 90 Days or More Past Due          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Non-performing troubled debt with no change in repayment terms at time of discharge, 90 days or more past due $ 147,000,000   $ 147,000,000    
Nonperforming Financing Receivable | Consumer Portfolio Segment          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Proceeds from sales 323,000,000 417,000,000 465,000,000 1,400,000,000  
Purchased credit impaired loans sold 204,000,000 $ 150,000,000 204,000,000 $ 324,000,000  
Nonperforming Financing Receivable | Consumer real estate | Chapter Seven Bankruptcy          
Financing Receivable, Recorded Investment, Past Due [Line Items]          
Loans and leases $ 451,000,000   $ 451,000,000