Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

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Basis of Presentation (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2014
item
Sep. 30, 2013
Dec. 31, 2013
Number of acquisitions 4    
Payments to Acquire Businesses, Net of Cash Acquired $ 284 $ 32  
Goodwill 3,686   3,460
Series of Individually Immaterial Business Acquisitions [Member]
     
Payments to Acquire Businesses, Net of Cash Acquired 284    
Net assets (including acquired cash) 90    
Goodwill 238    
Intangible assets 166    
Deferred tax liabilities, net (44)    
Accrued expenses and other current liabilities (98)    
Total purchase price consideration $ 352