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Identifiable Intangible Assets and Goodwill - Narrative (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Oct. 02, 2016
Sep. 27, 2015
Oct. 02, 2016
Sep. 27, 2015
Finite-Lived Intangible Assets [Member]        
Finite-Lived Intangible Assets [Line Items]        
Amortization expense for finite-lived intangible assets $ 988 $ 950 $ 3,000 $ 2,800