v2.4.0.8
Goodwill and Other Intangible Assets (Goodwill Rollforward) (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Goodwill [Roll Forward]  
Goodwill, Beginning Balance $ 9,501
Acquisitions 101
Foreign currency translation 90
De-consolidation of Euronext and reclassification of goodwill relating to discontinued operations (Note 13) (1,058)
Other activity, net (51)
Goodwill, Ending Balance $ 8,583