Quarterly report pursuant to Section 13 or 15(d)

Outstanding Loans and Leases - Credit Card and Other Consumer - Credit Quality Indicators (Details)

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Outstanding Loans and Leases - Credit Card and Other Consumer - Credit Quality Indicators (Details) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases $ 887,689 $ 881,391
Credit card and other consumer | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 87,314 80,381
Securities based lending overcollateralized 43,200 39,700
Loans no longer originated by corporation 584 632
Credit card and other consumer | Other consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases $ 2,012 $ 1,846
Percentage from exited businesses 29.00% 37.00%
Credit card and other consumer | United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases $ 88,339 $ 91,879
Credit card and other consumer | Non United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases $ 10,066 $ 10,465
Percentage outstanding, current or less than 30 days past due 98.00% 98.00%
Percentage outstanding, 30-89 days past due 1.00% 1.00%
Percentage outstanding, equal to greater than 90 days past due 1.00% 1.00%
Credit card and other consumer | Less than 620 | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases $ 1,219 $ 1,296
Credit card and other consumer | Less than 620 | Other consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 223 266
Credit card and other consumer | Less than 620 | United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 4,112 4,467
Credit card and other consumer | Less than 620 | Non United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 0 0
Credit card and other consumer | Greater than or equal to 620 and less than 680 | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 1,702 1,892
Credit card and other consumer | Greater than or equal to 620 and less than 680 | Other consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 215 227
Credit card and other consumer | Greater than or equal to 620 and less than 680 | United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 11,728 12,177
Credit card and other consumer | Greater than or equal to 620 and less than 680 | Non United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 0 0
Credit card and other consumer | Greater than or equal to 680 and less than 740 | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 10,873 10,749
Credit card and other consumer | Greater than or equal to 680 and less than 740 | Other consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 321 307
Credit card and other consumer | Greater than or equal to 680 and less than 740 | United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 33,823 34,986
Credit card and other consumer | Greater than or equal to 680 and less than 740 | Non United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 0 0
Credit card and other consumer | Greater than or equal to 740 | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 28,925 25,279
Credit card and other consumer | Greater than or equal to 740 | Other consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 1,061 881
Credit card and other consumer | Greater than or equal to 740 | United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 38,676 40,249
Credit card and other consumer | Greater than or equal to 740 | Non United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 0 0
Credit card and other consumer | Other internal credit metrics | Direct/Indirect Consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 44,595 41,165
Credit card and other consumer | Other internal credit metrics | Other consumer    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 192 165
Credit card and other consumer | Other internal credit metrics | United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases 0 0
Credit card and other consumer | Other internal credit metrics | Non United States | Credit Card Receivable    
Financing Receivable, Recorded Investment [Line Items]    
Loans and leases $ 10,066 $ 10,465