Comprehensive Earnings (Components Of Other Comprehensive Earnings (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Class of Stock [Line Items]
Net unrecognized losses on derivatives, net of tax, beginning of period	$ (30,820)
Net unrealized gains on marketable securities, net of tax, beginning of period	1,033
Net unrecognized losses and prior service cost related to defined benefit plans, net of tax, beginning of period	(13,890)
Foreign currency translation adjustment, beginning of period	(42,821)
Accumulated other comprehensive earnings, end of period	(86,498)
Other comprehensive earnings (loss), before reclassifications, before tax	(124,720)
Reclassification of realized gain (loss) on sale of marketable securities, included in other income (expense), net	25
Reclassification of amortization of actuarial gain (loss) included in sellling, general and administrative expense	(277)
Reclassification from accumulated other comprehensive loss (earnings), before tax	(10,068)
Net other comprehensive earnings (loss) on derivatives, before tax	25,798	22,646
Net other comprehensive earnings (loss) on marketable securities, before tax	(292)	(168)
Net other comprehensive earnings (loss) in unrecognized losses and prior service cost related to defined benefit plans, before tax	277	(10)
Net other comprehensive earnings (loss), foreign currency translation adjustment, before tax	(140,435)	101,438
Other comprehensive (loss) earnings, before tax	(114,652)	123,906
Income tax related to items of other comprehensive (loss) earnings	(7,252)	(7,190)
Net unrecognized losses on derivatives, net of tax, end of period	(12,272)
Net unrealized gains on marketable securities, net of tax, end of period	843
Net unrecognized losses and prior service cost related to defined benefit plan, net of tax, end of period	(13,717)
Foreign currency translation adjustment, end of period	(183,256)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(208,402)
Foreign currency forward contracts
Class of Stock [Line Items]
Reclassification of gain (loss) as cash flow hedges	(9,104)
Interest rate swaps
Class of Stock [Line Items]
Reclassification of gain (loss) as cash flow hedges	(712)
Gains and Losses on Marketable Securities
Class of Stock [Line Items]
Net unrealized gains on marketable securities, net of tax, beginning of period	1,033
Other comprehensive earnings (loss) on marketable securities, before relcassification, before tax	(267)	(143)
Reclassification of realized gain (loss) on sale of marketable securities, included in other income (expense), net	25	25
Net other comprehensive earnings (loss) on marketable securities, before tax	(292)	(168)
Income tax related to items of other comprehensive (loss) earnings, marketable securities	102
Net unrealized gains on marketable securities, net of tax, end of period	843
Defined Benefit Plan Items
Class of Stock [Line Items]
Net unrecognized losses and prior service cost related to defined benefit plans, net of tax, beginning of period	(13,890)
Other comprehensive earnings (loss) in unrecognized gain (loss) and prior service cost, before reclassification, before tax	0	0
Reclassification of amortization of actuarial gain (loss) included in sellling, general and administrative expense	(277)	10
Net other comprehensive earnings (loss) in unrecognized losses and prior service cost related to defined benefit plans, before tax	277	(10)
Income tax related to items of other comprehensive (loss) earnings, defined benefit plans	(104)
Net unrecognized losses and prior service cost related to defined benefit plan, net of tax, end of period	(13,717)
Foreign Currency Translation Adjustment
Class of Stock [Line Items]
Foreign currency translation adjustment, beginning of period	(42,821)
Other comprehensive earnings (loss), foreign currency translation gain (loss), before reclassification, before tax	(140,435)
Net other comprehensive earnings (loss), foreign currency translation adjustment, before tax	(140,435)
Income tax related to items of other comprehensive (loss) earnings, foreign currency translation adjustment	0
Foreign currency translation adjustment, end of period	(183,256)
Gains and Losses on Derivatives in Cash Flow Hedging Relationships
Class of Stock [Line Items]
Net unrecognized losses on derivatives, net of tax, beginning of period	(30,820)
Other comprehensive earnings (loss) on derivatives, before reclassification, before tax	15,982	17,017
Reclassification of gain (loss) as cash flow hedges	(9,816)	(5,629)
Net other comprehensive earnings (loss) on derivatives, before tax	25,798	22,646
Income tax related to items of other comprehensive (loss) earnings, derivatives	(7,250)
Net unrecognized losses on derivatives, net of tax, end of period	(12,272)
Gains and Losses on Derivatives in Cash Flow Hedging Relationships | Foreign currency forward contracts
Class of Stock [Line Items]
Reclassification of gain (loss) as cash flow hedges	(9,104)
Gains and Losses on Derivatives in Cash Flow Hedging Relationships | Interest rate swaps
Class of Stock [Line Items]
Reclassification of gain (loss) as cash flow hedges	$ (712)