Quarterly report pursuant to Section 13 or 15(d)

Trading Account Assets and Liabilities (Details)

v2.4.0.6
Trading Account Assets and Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets $ 223,028 $ 227,775
Trading account liabilities 90,547 73,587
U.S. government and agency securities [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 72,878 [1] 86,974 [1]
Trading account liabilities 25,764 23,430
Government sponsored enterprise obligations [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 25,500 30,600
Corporate securities, trading loans and other [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 39,183 37,900
Equity securities [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 45,863 43,315
Trading account liabilities 24,749 22,492
Non-U.S. sovereign debt [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 48,634 42,746
Trading account liabilities 29,377 20,244
Mortgage trading loans and ABS [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 16,470 16,840
Corporate securities and other [Member]
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account liabilities $ 10,657 $ 7,421
[1] Includes $25.5 billion and $30.6 billion of government-sponsored enterprise obligations at March 31, 2013 and December 31, 2012.