Annual report pursuant to Section 13 and 15(d)

Outstanding Loans and Leases - Nonperforming (Details)

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Outstanding Loans and Leases - Nonperforming (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
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 $ 906,683 $ 896,983  
Proceeds from sales 18,230 22,316 $ 28,765
Purchased credit impaired loans sold 549    
Loans and leases charged off 5,448 6,105 7,026
Recoveries of loans and leases previously charged off 1,627 1,767 2,643
Nonperforming loans and leases 7,707 9,377  
Accruing past due 90 days or more   8,250  
Accruing past due 90 days or more, including loans and leases held for sale 5,887    
90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases   13,020  
Residential Mortgage      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Accruing past due 90 days or more 1,800 2,900  
Nonperforming Financing Receivable | Junior Lien Home Equity Financing Receivable      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases $ 428 484  
Chapter Seven Bankruptcy | Nonperforming Financing Receivable      
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 $ 332    
Nonperforming loans discharged more than twelve months prior (greater than) 81.00%    
Nonperforming loans discharged more than twenty four months prior (greater than) 70.00%    
Chapter Seven Bankruptcy | Nonperforming Financing Receivable | 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 $ 181    
Federal Housing Administration | Residential Mortgage      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Nonperforming loans and leases 3,000 4,300  
Consumer Portfolio Segment      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases   456,169  
Nonperforming loans and leases 6,004 8,165  
Accruing past due 90 days or more   8,057  
Accruing past due 90 days or more, including loans and leases held for sale 5,679    
Consumer Portfolio Segment | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 8,727 12,513  
Consumer Portfolio Segment | Nonperforming Financing Receivable      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Proceeds from sales 2,200 3,200  
Purchased credit impaired loans sold 549 1,400  
Loans and leases charged off 30    
Recoveries of loans and leases previously charged off   133  
Gain (loss) on the sale of loans and leases receivable 75 173  
Consumer real estate      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases charged off 1,155 1,841 2,219
Recoveries of loans and leases previously charged off $ 619 732 1,426
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 $ 156,497 141,795  
Nonperforming loans and leases 1,274 1,825  
Accruing past due 90 days or more 486 382  
Consumer real estate | Core Portfolio, Residential Financing Receivable | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases $ 1,213 1,414  
Consumer real estate | Core Portfolio, Home Equity Financing Receivable      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Threshold period past due for nonperforming status of financing receivables 90 days    
Loans and leases $ 49,373 54,917  
Nonperforming loans and leases 969 974  
Accruing past due 90 days or more 0 0  
Consumer real estate | Core Portfolio, Home Equity Financing Receivable | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 451 579  
Consumer real estate | Non-core Portfolio, Residential Financing Receivable      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 25,173 34,050  
Nonperforming loans and leases 1,782 2,978  
Accruing past due 90 days or more 4,307 6,768  
Consumer real estate | Non-core Portfolio, Residential Financing Receivable | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 5,343 8,439  
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 13,459 16,412  
Nonperforming loans and leases 1,949 2,363  
Accruing past due 90 days or more 0 0  
Consumer real estate | Non-core Portfolio, Home Equity Financing Receivable | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases $ 832 1,170  
Consumer real estate | Residential Mortgage      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Threshold period past due for nonperforming status of financing receivables 90 days    
Consumer real estate | Chapter Seven Bankruptcy | Nonperforming Financing Receivable      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases $ 543    
Credit card and other consumer      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases charged off 3,553 3,620 4,149
Recoveries of loans and leases previously charged off 770 813 871
Credit card and other consumer | Credit Card Receivable | United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 92,278 89,602  
Accruing past due 90 days or more 782 789  
Credit card and other consumer | Credit Card Receivable | Non United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases   9,975  
Accruing past due 90 days or more   76  
Accruing past due 90 days or more, including loans and leases held for sale 66    
Credit card and other consumer | Credit Card Receivable | 90 Days or More Past Due | United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 782 789  
Credit card and other consumer | Credit Card Receivable | 90 Days or More Past Due | Non United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases   76  
Credit card and other consumer | Direct/Indirect Consumer      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 94,089 88,795  
Nonperforming loans and leases 28 24  
Accruing past due 90 days or more 34 39  
Credit card and other consumer | Direct/Indirect Consumer | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 34 42  
Credit card and other consumer | Other consumer      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 2,499 2,067  
Nonperforming loans and leases 2 1  
Accruing past due 90 days or more 4 3  
Credit card and other consumer | Other consumer | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases $ 6 4  
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 $ 458,526 440,814  
Loans and leases charged off 740 644 658
Recoveries of loans and leases previously charged off 238 222 $ 346
Nonperforming loans and leases 1,703 1,212  
Accruing past due 90 days or more 208 193  
Commercial Portfolio Segment | United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 270,372 252,771  
Nonperforming loans and leases 1,256 867  
Accruing past due 90 days or more 106 113  
Commercial Portfolio Segment | Non United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 89,397 91,549  
Nonperforming loans and leases 279 158  
Accruing past due 90 days or more 5 1  
Commercial Portfolio Segment | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 572 507  
Commercial Portfolio Segment | 90 Days or More Past Due | United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 400 332  
Commercial Portfolio Segment | 90 Days or More Past Due | Non United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 5 1  
Commercial Portfolio Segment | Commercial Real Estate      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 57,355 57,199  
Nonperforming loans and leases 72 93  
Accruing past due 90 days or more 7 3  
Commercial Portfolio Segment | Commercial Real Estate | United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 54,300 53,600  
Commercial Portfolio Segment | Commercial Real Estate | Non United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 3,100 3,500  
Commercial Portfolio Segment | Commercial Real Estate | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 56 82  
Commercial Portfolio Segment | Commercial Lease Financing      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 22,375 21,352  
Nonperforming loans and leases 36 12  
Accruing past due 90 days or more 19 15  
Commercial Portfolio Segment | Commercial Lease Financing | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 27 20  
Commercial Portfolio Segment | Small Business Commercial      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Nonperforming loans and leases 60 82  
Accruing past due 90 days or more 71 61  
Commercial Portfolio Segment | Small Business Commercial | United States      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases 12,993 12,876  
Commercial Portfolio Segment | Small Business Commercial | 90 Days or More Past Due      
Financing Receivable, Recorded Investment, Past Due [Line Items]      
Loans and leases $ 84 $ 72