Derivative Instruments and Hedging Activities (Gain Loss On Derivative Cash Flow Hedges Recognized In OCI) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Cash flow ineffectiveness	$ 0	$ 0
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging
Derivative [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(54,929)	28,176	$ 38,008
Amount of Gain/(Loss) Reclassified from AOCL into Income	(7,644)	17,633	58,902
Expected to be Reclassified Over the Next Twelve Months	(20,753)
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging \| Foreign currency contracts
Derivative [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(53,964)	28,099	45,810
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging \| Foreign currency contracts \| Cost of Sales
Derivative [Line Items]
Amount of Gain/(Loss) Reclassified from AOCL into Income	(7,202)	18,253	59,730
Expected to be Reclassified Over the Next Twelve Months	(20,178)
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging \| Commodities contracts
Derivative [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(246)	77	(421)
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging \| Commodities contracts \| Cost of Sales
Derivative [Line Items]
Amount of Gain/(Loss) Reclassified from AOCL into Income	0	(258)	(677)
Expected to be Reclassified Over the Next Twelve Months	(69)
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging \| Treasury rate locks
Derivative [Line Items]
Amount of Gain/(Loss) Recognized in OCI, before tax	(719)	0	(7,381)
Derivatives Designated As Hedging Instruments Under ASC Topic 815 \| Cash Flow Hedging \| Treasury rate locks \| Interest Expense
Derivative [Line Items]
Amount of Gain/(Loss) Reclassified from AOCL into Income	(442)	$ (362)	$ (151)
Expected to be Reclassified Over the Next Twelve Months	$ (506)

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624177-113959

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

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