Quarterly report pursuant to Section 13 or 15(d)

Trading Account Assets and Liabilities (Details)

v2.4.0.8
Trading Account Assets and Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets $ 201,206 $ 227,775
Trading account liabilities 82,713 73,587
U.S. government and agency securities [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 59,250 [1] 86,974 [1]
Trading account liabilities 24,395 23,430
Government sponsored enterprise obligations [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 13,400 30,600
Corporate securities, trading loans and other [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 34,267 37,900
Equity securities [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 48,300 43,315
Trading account liabilities 26,860 22,492
Non-U.S. sovereign debt [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 44,125 42,746
Trading account liabilities 23,621 20,244
Mortgage trading loans and ABS [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 15,264 16,840
Corporate securities and other [Member]
    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account liabilities $ 7,837 $ 7,421
[1] Includes $13.4 billion and $30.6 billion of government-sponsored enterprise obligations at September 30, 2013 and December 31, 2012.