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
Mar. 31, 2016
Dec. 31, 2015
Mar. 31, 2015
Dec. 31, 2014
On-balance sheet assets        
Trading account assets $ 178,987 $ 176,527    
Debt securities carried at fair value 302,333 322,380    
Loans and leases 901,113 896,983    
Allowance for loan and lease losses (12,069) (12,234) $ (13,676) $ (14,419)
Loans held-for-sale 6,192 7,453    
All other assets 109,913 114,600    
Total assets 2,185,498 2,144,316 $ 2,143,545  
On-balance sheet liabilities        
Long-term debt 232,849 236,764    
Total liabilities 1,922,722 1,888,111    
Other Variable Interest Entities        
Variable Interest Entity [Line Items]        
Maximum loss exposure 24,018 19,211    
On-balance sheet assets        
Trading account assets 3,143 2,666    
Debt securities carried at fair value 112 126    
Loans and leases 6,848 6,706    
Allowance for loan and lease losses (36) (32)    
Loans held-for-sale 1,597 1,309    
All other assets 11,755 7,589    
Total assets 23,419 18,364    
On-balance sheet liabilities        
Long-term debt 1,215 3,025    
All other liabilities 2,610 2,702    
Total liabilities 3,825 5,727    
Other Variable Interest Entities | Consolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 6,625 6,295    
On-balance sheet assets        
Trading account assets 2,781 2,300    
Debt securities carried at fair value 0 0    
Loans and leases 3,350 3,317    
Allowance for loan and lease losses (9) (9)    
Loans held-for-sale 278 284    
All other assets 723 664    
Total assets 7,123 6,556    
On-balance sheet liabilities        
Long-term debt 1,215 3,025    
All other liabilities 3 5    
Total liabilities 1,218 3,030    
Long-term debt with recourse to general corporation credit 720 2,800    
Other Variable Interest Entities | Unconsolidated VIEs        
Variable Interest Entity [Line Items]        
Maximum loss exposure 17,393 12,916    
On-balance sheet assets        
Trading account assets 362 366    
Debt securities carried at fair value 112 126    
Loans and leases 3,498 3,389    
Allowance for loan and lease losses (27) (23)    
Loans held-for-sale 1,319 1,025    
All other assets 11,032 6,925    
Total assets 16,296 11,808    
On-balance sheet liabilities        
Long-term debt 0 0    
All other liabilities 2,607 2,697    
Total liabilities 2,607 2,697    
Other Variable Interest Entities | Unconsolidated VIEs        
On-balance sheet liabilities        
Consolidated total assets of VIEs 7,123 6,556    
Unconsolidated total assets of VIEs 63,565 49,190    
Total assets of VIEs $ 70,688 $ 55,746