v3.6.0.2
Acquisitions and Divestments - Fair Value (and Useful Lives) of Identified Intangible Assets Acquired (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 07, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Finite-lived intangible asset   $ 299 $ 8,551  
Identified intangible assets acquired excluding goodwill $ 8,464      
Goodwill 7,399 $ 8,843 $ 9,228 $ 2,121
In-Process Research and Development [Member]        
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Indefinite lived intangible asset 2,017      
Other Intangible Assets [Member]        
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Indefinite lived intangible asset 41      
Customer-related [Member]        
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Finite-lived intangible asset 764      
Developed Technology [Member]        
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Finite-lived intangible asset 5,371      
Sales Order Backlog [Member]        
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Finite-lived intangible asset 190      
Trade Names [Member]        
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]        
Finite-lived intangible asset $ 81