Derivatives (Fair Values Of Derivative Instruments) (Details) (USD $) In Thousands	Oct. 01, 2011	Dec. 31, 2010
Derivative Asset, Fair Value	$ 7,034	$ 266
Derivative Liability, Fair Value	(22,900)	(66,661)
Designated As Hedging Instruments [Member]
Derivative Liability, Fair Value	(22,900)	(63,700)
Designated As Hedging Instruments [Member] | Accrued Expenses and Other Current Liabilities [Member] | Commodity Contracts [Member]
Derivative Liability, Fair Value	(18,300)	(8,900)
Designated As Hedging Instruments [Member] | Deferred Credits and Other Liabilities [Member] | Commodity Contracts [Member]
Derivative Liability, Fair Value	(4,600)	(54,800)
Not Designated As Hedging Instruments [Member] | Accrued Expenses and Other Current Liabilities [Member] | Commodity Contracts [Member]
Derivative Liability, Fair Value		(2,961)
Not Designated As Hedging Instruments [Member] | Other Current Assets [Member] | Foreign Exchange Contracts [Member]
Derivative Asset, Fair Value	133	266
Not Designated As Hedging Instruments [Member] | Other Current Assets [Member] | Commodity Contracts [Member]
Derivative Asset, Fair Value	$ 6,901