Derivative Instruments and Hedging Activities (Gain Loss On Derivative Cash Flow Hedges Recognized In OCI) (Detail) - Designated as Hedging Instrument - Cash Flow Hedging - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 24, 2017	Sep. 25, 2016	Sep. 24, 2017	Sep. 25, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	$ (35,692)	$ (895)	$ (60,245)	$ (5,475)
Amount of Gain/(Loss) Reclassified from AOCL into Income	(8,043)	2,330	(1,694)	6,237
Expected to be Reclassified Over the Next Twelve Months			(31,892)
Foreign Currency Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(35,687)	(938)	(59,335)	(5,445)
Foreign Currency Contracts | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from AOCL into Income	(7,901)	2,399	(1,428)	6,806
Expected to be Reclassified Over the Next Twelve Months			(31,324)
Commodity Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(5)	43	(191)	(30)
Commodity Contract | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from AOCL into Income	(16)	21	49	(298)
Expected to be Reclassified Over the Next Twelve Months			(62)
Treasury Rate Locks
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	0	0	(719)	0
Treasury Rate Locks | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/(Loss) Reclassified from AOCL into Income	$ (126)	$ (90)	(315)	$ (271)
Expected to be Reclassified Over the Next Twelve Months			$ (506)