Quarterly report pursuant to Section 13 or 15(d)

Securitizations and Other Variable Interest Entities - Other Variable Interest Entities (Details)

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Securitizations and Other Variable Interest Entities - Other Variable Interest Entities (Details) - USD ($)
$ in Millions
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
On-balance sheet assets            
Trading account assets $ 175,365   $ 176,527      
Debt securities carried at fair value 309,670   322,380      
Loans and leases 903,153   896,983      
Allowance for loan and lease losses (11,837) $ (12,069) (12,234) $ (13,068) $ (13,676) $ (14,419)
Loans held-for-sale 8,848   7,453      
All other assets 108,700   114,600      
Total assets 2,186,609   2,144,316 $ 2,149,034    
On-balance sheet liabilities            
Long-term debt 229,617   236,764      
Total liabilities 1,919,540   1,888,111      
Other Variable Interest Entities            
Variable Interest Entity [Line Items]            
Maximum loss exposure 24,120   19,211      
On-balance sheet assets            
Trading account assets 3,526   2,666      
Debt securities carried at fair value 101   126      
Loans and leases 6,767   6,706      
Allowance for loan and lease losses (38)   (32)      
Loans held-for-sale 887   1,309      
All other assets 11,778   7,589      
Total assets 23,021   18,364      
On-balance sheet liabilities            
Long-term debt 1,217   3,025      
All other liabilities 2,598   2,702      
Total liabilities 3,815   5,727      
Other Variable Interest Entities | Consolidated VIEs            
Variable Interest Entity [Line Items]            
Maximum loss exposure 6,876   6,295      
On-balance sheet assets            
Trading account assets 3,060   2,300      
Debt securities carried at fair value 0   0      
Loans and leases 3,436   3,317      
Allowance for loan and lease losses (10)   (9)      
Loans held-for-sale 256   284      
All other assets 635   664      
Total assets 7,377   6,556      
On-balance sheet liabilities            
Long-term debt 1,217   3,025      
All other liabilities 3   5      
Total liabilities 1,220   3,030      
Long-term debt with recourse to general corporation credit 719   2,800      
Other Variable Interest Entities | Unconsolidated VIEs            
Variable Interest Entity [Line Items]            
Maximum loss exposure 17,244   12,916      
On-balance sheet assets            
Trading account assets 466   366      
Debt securities carried at fair value 101   126      
Loans and leases 3,331   3,389      
Allowance for loan and lease losses (28)   (23)      
Loans held-for-sale 631   1,025      
All other assets 11,143   6,925      
Total assets 15,644   11,808      
On-balance sheet liabilities            
Long-term debt 0   0      
All other liabilities 2,595   2,697      
Total liabilities 2,595   2,697      
Other Variable Interest Entities | Unconsolidated VIEs            
On-balance sheet liabilities            
Consolidated total assets of VIEs 7,377   6,556      
Unconsolidated total assets of VIEs 63,585   49,190      
Total assets of VIEs $ 70,962   $ 55,746