Derivative Instruments And Hedging Activities (Gain Loss On Derivative Cash Flow Hedges Recognized In OCI) (Detail) - Cash Flow Hedging [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	$ (12,715)	$ 32,548
Foreign Currency Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(12,523)	32,668
Commodity Contract [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	$ (192)	$ (120)