Quarterly report pursuant to Section 13 or 15(d)

Securitizations and Other Variable Interest Entities - Other (Details)

v2.4.0.8
Securitizations and Other Variable Interest Entities - Other (Details) (USD $)
In Millions, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Jun. 30, 2013
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Dec. 31, 2012
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Jun. 30, 2013
Investment Vehicles [Member]
Dec. 31, 2012
Investment Vehicles [Member]
Jun. 30, 2013
Other Asset Back Financing Arrangement [Member]
Dec. 31, 2012
Other Asset Back Financing Arrangement [Member]
Jun. 30, 2013
Consolidated VIEs [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Jun. 30, 2013
Consolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Jun. 30, 2013
Consolidated VIEs [Member]
Investment Vehicles [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Investment Vehicles [Member]
Jun. 30, 2013
Consolidated VIEs [Member]
Leveraged Lease Trusts [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Leveraged Lease Trusts [Member]
Jun. 30, 2013
Unconsolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Other Investment Vehicles Funds Trusts Conduits And Real Estate Vehicles [Member]
Jun. 30, 2013
Unconsolidated VIEs [Member]
Investment Vehicles [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Investment Vehicles [Member]
Jun. 30, 2013
Unconsolidated VIEs [Member]
Real Estate Vehicles [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Real Estate Vehicles [Member]
Variable Interest Entity [Line Items]                                                    
Maximum loss exposure             $ 11,888 $ 12,100 $ 1,800 $ 2,100 $ 1,500 $ 2,500     $ 5,321 $ 5,608         $ 6,567 $ 6,492        
On Balance Sheet Assets [Abstract]                                                    
Trading account assets             101 108             101 108         0 0        
Derivative assets 56,772   53,497       406 460         173 333 0 0         406 460        
AFS Debt Securities             0 39             0 0         0 39        
Loans and leases 921,570   907,819       4,346 4,628         113,045 123,227 4,293 4,561         53 67        
Allowance for loan and lease losses (21,235) (22,441) (24,179) (30,288) (32,211) (33,783) (4) (14)         (3,157) (3,658) (4) (14)         0 0        
Loans held-for-sale 14,549   19,413       158 262         1,876 1,969 77 105         81 157        
Other Assets 127,880   150,112       7,017 6,769         3,927 4,654 990 1,001         6,027 5,768        
Total assets 2,123,320   2,209,974 2,160,854     12,024 12,252         122,371 134,431 5,457 5,761 1,200 1,300 4,200 4,400 6,567 6,491 2,600 3,000 5,700 5,400
On Balance Sheet Liabilities [Abstract]                                                    
Derivative liabilities 48,532   46,016                                              
Long-term debt 262,480   275,585       871 889         25,946 34,256 871 889         0 0        
Other Liabilities             2,090 1,755         390 360 55 63         2,035 1,692        
Total liabilities 1,892,288   1,973,018       2,961 2,644         27,757 38,347 926 952         2,035 1,692        
Consolidated, Total assets of VIEs                             5,457 5,761                    
Unconsolidated, Total assets of VIEs                                         8,481 8,660        
Total assets of VIEs             $ 13,938 $ 14,421                                    
In Text Details [Abstract]                                                    
Financing provided for asset-backed financing arrangements, percentage                     75.00%