Financial Instruments And Risk Management (Fair Values Of Derivative Instruments Derivatives Designated As Hedging Instruments) (Details) (Designated As Hedging Instrument [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Derivatives, Fair Value [Line Items]
Asset Derivatives Not Designated as Hedging Instruments, Fair Value	$ 29,773	$ 8,884
Liability Derivatives Not Designated as Hedging Instruments, Fair Value	57,733	934,921
Prepaid Expenses And Other Current Assets [Member] | Foreign Currency Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Not Designated as Hedging Instruments, Fair Value		8,884
Prepaid Expenses And Other Current Assets [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Not Designated as Hedging Instruments, Fair Value	29,773
Other Current Liabilities [Member] | Foreign Currency Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Not Designated as Hedging Instruments, Fair Value	57,075
Other Current Liabilities [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Not Designated as Hedging Instruments, Fair Value	658	25,666
Long-Term Debt [Member] | Foreign Currency Borrowings [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Not Designated as Hedging Instruments, Fair Value		$ 909,255