Quarterly report pursuant to Section 13 or 15(d)

Securitizations and Other Variable Interest Entities - Other (Details)

v2.4.0.6
Securitizations and Other Variable Interest Entities - Other (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Dec. 31, 2010
Sep. 30, 2012
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Dec. 31, 2011
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Sep. 30, 2012
Investment Vehicles [Member]
Dec. 31, 2011
Investment Vehicles [Member]
Sep. 30, 2012
Other Asset Back Financing Arrangement [Member]
Dec. 31, 2011
Other Asset Back Financing Arrangement [Member]
Sep. 30, 2012
Consolidated VIEs [Member]
Dec. 31, 2011
Consolidated VIEs [Member]
Sep. 30, 2012
Consolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Dec. 31, 2011
Consolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Sep. 30, 2012
Consolidated VIEs [Member]
Investment Vehicles [Member]
Dec. 31, 2011
Consolidated VIEs [Member]
Investment Vehicles [Member]
Sep. 30, 2012
Consolidated VIEs [Member]
Leveraged Lease Trusts [Member]
Dec. 31, 2011
Consolidated VIEs [Member]
Leveraged Lease Trusts [Member]
Sep. 30, 2012
Unconsolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Dec. 31, 2011
Unconsolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Sep. 30, 2012
Unconsolidated VIEs [Member]
Investment Vehicles [Member]
Dec. 31, 2011
Unconsolidated VIEs [Member]
Investment Vehicles [Member]
Sep. 30, 2012
Unconsolidated VIEs [Member]
Real Estate Vehicles [Member]
Dec. 31, 2011
Unconsolidated VIEs [Member]
Real Estate Vehicles [Member]
Variable Interest Entity [Line Items]                                                    
Maximum loss exposure             $ 12,637 $ 14,715 $ 2,500 $ 4,400 $ 3,900 $ 4,700     $ 5,704 $ 7,429         $ 6,933 $ 7,286        
On Balance Sheet Assets [Abstract]                                                    
Trading account assets             16 0             16 0         0 0        
Derivative assets 57,865   73,023       436 834         546 1,634 4 394         432 440        
AFS Debt Securities 305,949   276,151       43 62             0 0         43 62        
Loans and leases 893,035   926,200       4,860 5,511         125,043 140,194 4,645 5,154         215 357        
Allowance for loan and lease losses (26,233) (30,288) (33,783) (35,082) (37,312) (41,885) (5) (9)         (3,811) (5,066) (5) (8)         0 (1)        
Loans held-for-sale 16,436   13,762       533 704         2,165 1,635 107 106         426 598        
Other Assets 150,698   145,686       6,822 7,632         3,754 4,769 1,009 1,809         5,813 5,823        
Total assets 2,166,162   2,129,046 2,219,628     12,705 14,734         137,656 151,761 5,776 7,455 1,183 2,600 4,500 4,800 6,929 7,279 4,800 5,500 5,500 5,400
On Balance Sheet Liabilities [Abstract]                                                    
Derivative liabilities 51,369   59,520       9 0             0 0         9 0        
Long-term debt 286,534   372,265       804 10         38,055 49,054 804 10         0 0        
Other Liabilities             2,148 2,399         625 1,116 330 694         1,818 1,705        
Total liabilities 1,927,556   1,898,945       2,961 2,409         42,552 55,947 1,134 704         1,827 1,705        
Consolidated, Total assets of VIEs                             5,776 7,455                    
Unconsolidated, Total assets of VIEs                                         10,451 11,055        
Total assets of VIEs             $ 16,227 $ 18,510                                    
In Text Details [Abstract]                                                    
Financing provided for asset-backed financing arrangements, percentage                     75.00%