v2.4.0.8
Business Segments (Schedule of Operating Segments) (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Segment Reporting Information [Line Items]          
Total revenues $ 805 $ 746 $ 2,362 $ 2,365  
Cost of revenues (299) (334) (987) (1,112)  
Revenues less transaction rebates, brokerage, clearance and exchange fees 506 412 1,375 1,253  
Operating income (loss) 202 170 450 516  
Assets 12,486   12,486   9,132
Market Services [Member]
          
Segment Reporting Information [Line Items]          
Total revenues 499 519 1,559 1,686  
Cost of revenues (299) (334) (987) (1,112)  
Revenues less transaction rebates, brokerage, clearance and exchange fees 200 185 572 574  
Operating income (loss) 85 80 234 240  
Assets 7,879   7,879   4,981
Listing Services [Member]
          
Segment Reporting Information [Line Items]          
Total revenues 57 55 170 166  
Cost of revenues           
Revenues less transaction rebates, brokerage, clearance and exchange fees 57 55 170 166  
Operating income (loss) 22 23 69 68  
Assets 279   279   254
Information Services [Member]
          
Segment Reporting Information [Line Items]          
Total revenues 118 99 333 307  
Cost of revenues           
Revenues less transaction rebates, brokerage, clearance and exchange fees 118 99 333 307  
Operating income (loss) 86 72 246 225  
Assets 2,591   2,591   2,456
Technology Solutions [Member]
          
Segment Reporting Information [Line Items]          
Total revenues 131 73 300 206  
Cost of revenues           
Revenues less transaction rebates, brokerage, clearance and exchange fees 131 73 300 206  
Operating income (loss) 9 6 18 14  
Assets 1,081   1,081   625
Corporate Items and Eliminations [Member]
          
Segment Reporting Information [Line Items]          
Cost of revenues           
Operating income (loss)    [1] (11) [2] (117) [3] (31) [4]  
Assets $ 656   $ 656   $ 816
[1] Corporate items and eliminations for the three months ended September 30, 2013 primarily include merger and strategic initiatives expenses including $8 million of costs primarily related to the acquisitions of eSpeed and the TR Corporate Solutions businesses. These amounts were offset by the remeasurement of a contingent purchase price liability related to the BWise acquisition due to changes in the anticipated performance of BWise.
[2] Corporate items and eliminations for the three months ended September 30, 2012 primarily include restructuring charges, special legal expenses related to our voluntary accommodation program and other expenses related to the systems issues experienced at the time of the Facebook IPO, and a net gain on merger and strategic initiatives.
[3] Corporate items and eliminations for the nine months ended September 30, 2013 primarily include expenses related to our voluntary accommodation program, merger and strategic initiatives expense, expense related to an SEC matter, restructuring charges, and special legal expenses.
[4] Corporate items and eliminations for the nine months ended September 30, 2012 primarily include restructuring charges and special legal expenses, partially offset by income from open positions relating to operations of the exchange.