Annual report pursuant to Section 13 and 15(d)

Securitizations and Other Variable Interest Entities - Other Variable Interest Entities, Additional Information (Details)

v3.6.0.2
Securitizations and Other Variable Interest Entities - Other Variable Interest Entities, Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Variable Interest Entity [Line Items]    
Total assets $ 2,187,702 $ 2,144,287
Customer Vehicles    
Variable Interest Entity [Line Items]    
Net decrease in long-term debt   1,200
Maximum loss exposure 2,900 3,900
Liquidity commitments to unconsolidated securitization trusts 323 691
Collateralized Debt Obligations    
Variable Interest Entity [Line Items]    
Maximum loss exposure 430 543
Notional amount of liquidity exposure 127  
Investment Vehicles    
Variable Interest Entity [Line Items]    
Maximum loss exposure 5,100 5,100
Investment Vehicles | Consolidated VIEs    
Variable Interest Entity [Line Items]    
Total assets 846 397
Investment Vehicles | Unconsolidated VIEs    
Variable Interest Entity [Line Items]    
Maximum loss exposure 150 150
Total assets 17,300 14,700
Consolidated total assets of VIEs 75 122
Leveraged Lease Trusts | Consolidated VIEs    
Variable Interest Entity [Line Items]    
Total assets 2,600 2,800
Real Estate Vehicles | Unconsolidated VIEs    
Variable Interest Entity [Line Items]    
Total assets 12,600 6,500
Tax Credit Vehicles [Member]    
Investments in Affordable Housing Projects [Abstract]    
Unfunded commitments $ 2,700 2,400
Unfunded commitment payment period 5 years  
Tax credits and other benefits $ 1,100 928
Expected tax benefits recognized, as a percentage 25.00%  
Tax Credit Vehicles [Member] | Other assets    
Investments in Affordable Housing Projects [Abstract]    
Investments in affordable housing project investments $ 7,400 7,100
Tax Credit Vehicles [Member] | Other income    
Investments in Affordable Housing Projects [Abstract]    
Pretax losses 789 629
Other Variable Interest Entities    
Variable Interest Entity [Line Items]    
Maximum loss exposure 23,821 19,211
Total assets 23,458 18,364
Consolidated total assets of VIEs 6,305 6,556
Other Variable Interest Entities | Consolidated VIEs    
Variable Interest Entity [Line Items]    
Maximum loss exposure 6,114 6,295
Total assets 6,305 6,556
Other Variable Interest Entities | Unconsolidated VIEs    
Variable Interest Entity [Line Items]    
Maximum loss exposure 17,707 12,916
Total assets $ 17,153 $ 11,808