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Acquisition, Adchem Corp (Details) - USD ($)
$ in Millions
1 Months Ended
Jun. 30, 2017
Sep. 30, 2017
Oct. 01, 2016
Sep. 26, 2015
Acquisition [Abstract]        
Goodwill   $ 2,775 $ 2,406 $ 1,652
Adchem [Member]        
Acquisition [Abstract]        
Purchase price $ 49      
Working capital 10      
Property and equipment 2      
Intangible assets 22      
Goodwill $ 15