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
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Dec. 31, 2011
Mar. 31, 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]
Mar. 31, 2013
Investment Vehicles [Member]
Dec. 31, 2012
Investment Vehicles [Member]
Mar. 31, 2013
Other Asset Back Financing Arrangement [Member]
Dec. 31, 2012
Other Asset Back Financing Arrangement [Member]
Mar. 31, 2013
Consolidated VIEs [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Mar. 31, 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]
Mar. 31, 2013
Consolidated VIEs [Member]
Investment Vehicles [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Investment Vehicles [Member]
Mar. 31, 2013
Consolidated VIEs [Member]
Leveraged Lease Trusts [Member]
Dec. 31, 2012
Consolidated VIEs [Member]
Leveraged Lease Trusts [Member]
Mar. 31, 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]
Mar. 31, 2013
Unconsolidated VIEs [Member]
Investment Vehicles [Member]
Dec. 31, 2012
Unconsolidated VIEs [Member]
Investment Vehicles [Member]
Mar. 31, 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         $ 12,137 $ 12,100 $ 2,000 $ 2,100 $ 2,000 $ 2,500     $ 5,508 $ 5,608         $ 6,629 $ 6,492        
On Balance Sheet Assets [Abstract]                                                
Trading account assets         109 108             109 108         0 0        
Derivative assets 52,247 53,497     507 460         187 333 0 0         507 460        
AFS Debt Securities         36 39             0 0         36 39        
Loans and leases 911,592 907,819     4,519 4,628         116,236 123,227 4,466 4,561         53 67        
Allowance for loan and lease losses (22,441) (24,179) (32,211) (33,783) (5) (14)         (3,310) (3,658) (5) (14)         0 0        
Loans held-for-sale 19,278 19,413     168 262         3,229 1,969 95 105         73 157        
Other Assets 137,792 150,112     6,947 6,769         4,728 4,654 988 1,001         5,959 5,768        
Total assets 2,174,819 2,209,974 2,181,449   12,281 12,252         130,183 134,431 5,653 5,761 1,228 1,300 4,300 4,400 6,628 6,491 2,800 3,000 5,600 5,400
On Balance Sheet Liabilities [Abstract]                                                
Derivative liabilities 47,825 46,016     0 9             0 0         0 9        
Long-term debt 279,641 275,585     879 889         31,461 34,256 879 889         0 0        
Other Liabilities         1,993 1,746         345 360 63 63         1,930 1,683        
Total liabilities 1,937,526 1,973,018     2,872 2,644         34,345 38,347 942 952         1,930 1,692        
Consolidated, Total assets of VIEs                         5,653 5,761                    
Unconsolidated, Total assets of VIEs                                     8,599 8,660        
Total assets of VIEs         $ 14,252 $ 14,421                                    
In Text Details [Abstract]                                                
Financing provided for asset-backed financing arrangements, percentage                 75.00%