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Business Combinations (Details Textuals) (USD $)
In Millions
1 Months Ended 6 Months Ended
Jun. 30, 2011
Apr. 30, 2011
Provigent [Member]
Jun. 30, 2011
Provigent [Member]
Jun. 30, 2011
Gigle [Member]
May 31, 2011
SC Square Ltd [Member]
Business Combinations (Textuals) [Abstract]          
Acquisition cost of acquired entity         $ 40
Amount expected to be paid net of cash Acquired   314      
Contingent consideration originally recorded for estimated liability       1  
Cash consideration paid to former shareholder       20  
Capitalization of IPR&D costs     45    
Fair value of equity award     4    
Fair value of equity award recorded to goodwill $ 131   $ 1