Derivative Instruments And Hedging Activities (Gain Loss On Derivative Cash Flow Hedges Recognized In OCI) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jun. 26, 2011	Jul. 01, 2012	Jun. 26, 2011
Derivative Instruments And Hedging Activities [Line Items]
Amount of Gain/(Loss) Recognized in OCI	$ 10,191	$ (7,384)	$ 3,647	$ (17,590)
Interest Rate Swaps Unsecured Commercial Paper [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of (Loss) Recognized in OCI	(9)	(397)	(24)	(405)
Foreign Currency Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of (Loss) Recognized in OCI	10,309	(6,760)	4,095	(16,921)
Natural Gas Contracts [Member]
Derivative Instruments And Hedging Activities [Line Items]
Amount of (Loss) Recognized in OCI	$ (109)	$ (227)	$ (424)	$ (264)