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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Apr. 01, 2016
Sep. 30, 2016
Acquired Goodwill and Intangible Assets [Line Items]    
Goodwill   $ 1,077
Swett & Crawford    
Acquired Goodwill and Intangible Assets [Line Items]    
Goodwill $ 271  
Identifiable intangible assets $ 224  
Amortization period 13 years  
Deductible for tax purposes $ 135