AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Schedule of Accumulated Comprehensive Income [Line Items]
Document Fiscal Year Focus			2013
Other Comprehensive Income (Loss), Reclassification Adjustment Included in Net Income, Net of Tax			$ 26,018	$ 23,455
Cash Flow Hedge Loss Reclassified to Revenue	(371)	473	(753)	774
Cash Flow Hedge Gain Reclassified to Cost of Sales	286	(7)	412	(73)
Accumulated other comprehensive loss (income), beginning balance			(681,213)	(661,645)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(4,719)	1,235	(4,445)	378
Other Comprehensive Income Loss Before Reclassification Adjustments Net Of Tax			(68,328)	(19,468)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax	(7)	74	1,639	300
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	9,391	10,976	20,993	22,964
Defined Benefit Plan, Amortization of Transition Obligations (Assets)	2	2	4	4
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(163)	299	(361)	589
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	(3)	43	963	176
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	9,391	10,976	20,993	22,964
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(362)	(504)	(900)	(553)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(723,523)	(657,658)	(723,523)	(657,658)
Cash Flow Hedge Gain (Loss) Reclassified to Interest Expense, Net	(507)	(507)	(1,014)	(1,014)
Cash Flow Hedge Loss Reclassified to Earnings	(592)	(41)	(1,355)	(313)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax	10	(117)	(2,602)	(476)
Cash Flow Hedge Loss Reclassified to Other Expense	231	17	528	122
Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	(361)	(24)	(827)	(191)
Defined Benefit Plan, Amortization of Gains (Losses)	(14,156)	(18,347)	(31,902)	(37,524)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	(14,317)	(18,046)	(32,259)	(36,931)
Other Comprehensive Income (Loss), Net of Tax	12,520	40,552	42,310	(3,987)
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			(73)	362
Accumulated other comprehensive loss (income), beginning balance			7,777	(8,438)
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax			827	(191)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax			900	(553)
Accumulated Other Comprehensive Income (Loss), Net of Tax	6,877	(7,885)	6,877	(7,885)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Accumulated other comprehensive loss (income), beginning balance			(4,513)	4,387
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Reclassification Adjustments, Net of Tax			(6,084)	(78)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax			4,445	378
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax			1,639	(300)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(68)	4,765	(68)	4,765
Accumulated Defined Benefit Plans Adjustment [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Accumulated other comprehensive loss (income), beginning balance			759,199	(741,546)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax			(20,993)	22,964
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax			20,993	(22,964)
Accumulated Other Comprehensive Income (Loss), Net of Tax	738,206	(718,582)	738,206	(718,582)
Accumulated Translation Adjustment [Member]
Schedule of Accumulated Comprehensive Income [Line Items]
Accumulated other comprehensive loss (income), beginning balance			(81,250)	83,952
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax			(62,317)	19,908
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax			(59,758)	19,908
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax			(2,559)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (21,492)	$ 64,044	$ (21,492)	$ 64,044