v2.3.0.11
Introduction And Basis Of Presentation (Details) (USD $)
Share data in Millions, unless otherwise specified
0 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended 6 Months Ended
Feb. 11, 2010
Jun. 30, 2010
Jun. 30, 2010
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2011
Morgan Stanley Smith Barney Holdings LLC [Member]
Jun. 30, 2010
Revel Entertainment Group, LLC [Member]
Dec. 31, 2010
Revel Entertainment Group, LLC [Member]
Percentage of interest in Morgan Stanley Smith Barney Holdings LLC           51.00%    
Cash received from the sale of retail asset management business   $ 800,000,000            
Shares received from sale of Retail Asset Management Business   30.9            
Assets of discontinued operations               28,000,000
Loss on the write-down of Revel Entertainment Group     19,000,000 951,000,000     951,000,000  
Proceeds from lawsuit against Visa and Mastercard 775,000,000              
Financial instruments owned, corporate and other debt         5,600,000,000      
Financial instruments owned, physical commodities         3,400,000,000      
Financing obligations, other secured financings         $ 9,000,000,000