Annual report pursuant to Section 13 and 15(d)

Trading Account Assets and Liabilities (Details)

v2.4.0.6
Trading Account Assets and Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets $ 237,226 $ 169,319
Trading account liabilities 73,587 60,508
US Government-sponsored Enterprises Debt Securities
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 30,600 27,300
US government and agency securities
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 86,974 [1] 52,613 [1]
Trading account liabilities 23,430 20,710
Corporate securities, trading loans and other
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 37,900 36,571
Equity Securities
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 43,315 23,674
Trading account liabilities 22,492 14,594
Non-U.S. sovereign debt
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 52,197 42,946
Trading account liabilities 20,244 17,440
Mortgage trading loans and asset-backed securities
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account assets 16,840 13,515
Corporate securities and other
   
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Trading account liabilities $ 7,421 $ 7,764
[1] Includes $30.6 billion and $27.3 billion of government-sponsored enterprise obligations at December 31, 2012 and 2011.