AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule of Accumulated Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment Included in Net Income, Net of Tax	$ 12,743
Cash Flow Hedge Loss Reclassified to Revenue	(382)
Cash Flow Hedge Gain Reclassified to Cost of Sales	126
Accumulated other comprehensive loss (income), beginning balance	(681,213)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	274	(857)
Other Comprehensive Income Loss Before Reclassification Adjustments Net Of Tax	(43,504)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	1,646
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	10,631	11,988
Defined Benefit Plan, Amortization of Transition Obligations (Assets)	2
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(198)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	966
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	10,631
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	538	49
Accumulated Other Comprehensive Income (Loss), Net of Tax	(711,974)
Cash Flow Hedge Gain (Loss) Reclassified to Interest Expense, Net	(507)
Cash Flow Hedge Loss Reclassified to Earnings	(763)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	(2,612)
Cash Flow Hedge Loss Reclassified to Other Expense	297
Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	(466)
Defined Benefit Plan, Amortization of Gains (Losses)	(16,574)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	(16,770)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	6,139
Other Comprehensive Income (Loss), Net of Tax	(30,761)	44,539
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	72
Accumulated other comprehensive loss (income), beginning balance	(7,777)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	466
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	538
Accumulated Other Comprehensive Income (Loss), Net of Tax	(7,239)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Accumulated other comprehensive loss (income), beginning balance	4,513
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax	(1,372)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	274
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	1,646
Accumulated Other Comprehensive Income (Loss), Net of Tax	4,787
Accumulated Defined Benefit Plans Adjustment [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Accumulated other comprehensive loss (income), beginning balance	(759,199)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	10,631
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	10,631
Accumulated Other Comprehensive Income (Loss), Net of Tax	(748,568)
Accumulated Translation Adjustment [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Accumulated other comprehensive loss (income), beginning balance	81,250
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	(42,204)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(42,204)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 39,046