Quarterly report pursuant to Section 13 or 15(d)

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

v3.5.0.2
Securitizations and Other Variable Interest Entities - Other Variable Interest Entities, Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Variable Interest Entity [Line Items]          
Consolidated total assets $ 2,195,314 $ 2,152,962 $ 2,195,314 $ 2,152,962 $ 2,144,287
Customer Vehicles          
Variable Interest Entity [Line Items]          
Maximum loss exposure 3,700   3,700   3,900
Liquidity commitments to unconsolidated securitization trusts 646   646   691
Collateralized Debt Obligations          
Variable Interest Entity [Line Items]          
Maximum loss exposure 819   819   543
Notional amount of liquidity exposure 175   175    
Investment Vehicles          
Variable Interest Entity [Line Items]          
Maximum loss exposure 5,800   5,800   5,100
Investment Vehicles | Consolidated VIEs          
Variable Interest Entity [Line Items]          
Consolidated total assets 970   970   397
Investment Vehicles | Unconsolidated VIEs          
Variable Interest Entity [Line Items]          
Maximum loss exposure 150   150   150
Consolidated total assets 19,000   19,000   14,700
Consolidated total assets of VIEs 84   84   122
Leveraged Lease Trusts | Consolidated VIEs          
Variable Interest Entity [Line Items]          
Consolidated total assets 2,700   2,700   2,800
Tax Credit Vehicles          
Variable Interest Entity [Line Items]          
Unfunded commitments to provide capital contributions 2,200   $ 2,200   2,400
Commitment payment period     5 years    
Tax credits and other tax benefits from investments 337 239 $ 819 727  
Income tax benefit, percentage recognized     25.00%    
Tax Credit Vehicles | Other Income          
Variable Interest Entity [Line Items]          
Income (loss) from affordable housing projects 200 $ 153 $ 596 $ 508  
Tax Credit Vehicles | Other assets          
Variable Interest Entity [Line Items]          
Affordable housing tax credit investments 6,800   6,800   7,100
Tax Credit Vehicles | Unconsolidated VIEs          
Variable Interest Entity [Line Items]          
Consolidated total assets $ 10,800   $ 10,800   $ 6,500