Other Comprehensive Earnings (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Other Comprehensive Earnings (Loss) [Abstract]
Tax (expense) benefit on cash flow hedging activities	$ (2,924)	$ 2,548	$ 11,987	$ (424)
Tax benefit (expense) on unrealized holding gains	80	0	(1,919)	0
Reclassification Adjustment from AOCE, Tax (benefit) expense on cash flow hedging activities	(2,129)	861	(2,471)	1,280
Reclassification Adjustment from AOCE, Tax benefit on unrecognized pension and postretirement amounts	(312)	(712)	(936)	(2,136)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Total	(5,285)	2,697	6,661	(1,280)
Cash Flow Hedge gains to be Reclassified within Twelve Months	13,453
Accumulated Other Comprehensive (Loss) [Line Items]
Total accumulated other comprehensive earnings (loss), Beginning of Year			(34,135)	(72,307)
Other Comprehensive Earnings (Loss), Net of Tax, Total	14,979	(857)	(2,670)	(6,416)
Total accumulated other comprehensive earnings (loss), End of Period	(36,805)	(78,723)	(36,805)	(78,723)
Pension and Postretirement Amounts [Member]
Accumulated Other Comprehensive (Loss) [Line Items]
Total accumulated other comprehensive earnings (loss), Beginning of Year			(64,841)	(120,422)
Other Comprehensive Earnings (Loss), Net of Tax, Total			1,650	7,291
Total accumulated other comprehensive earnings (loss), End of Period	(63,191)	(113,131)	(63,191)	(113,131)
Gains (Losses) On Derivative Instruments [Member]
Accumulated Other Comprehensive (Loss) [Line Items]
Total accumulated other comprehensive earnings (loss), Beginning of Year			(7,313)	(1,008)
Other Comprehensive Earnings (Loss), Net of Tax, Total			23,938	(4,827)
Total accumulated other comprehensive earnings (loss), End of Period	16,625	(5,835)	16,625	(5,835)
Unrealized Holding Gains on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive (Loss) [Line Items]
Total accumulated other comprehensive earnings (loss), Beginning of Year			0	0
Other Comprehensive Earnings (Loss), Net of Tax, Total			3,382	0
Total accumulated other comprehensive earnings (loss), End of Period	3,382	0	3,382	0
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive (Loss) [Line Items]
Total accumulated other comprehensive earnings (loss), Beginning of Year			38,019	49,123
Other Comprehensive Earnings (Loss), Net of Tax, Total			(31,640)	(8,880)
Total accumulated other comprehensive earnings (loss), End of Period	$ 6,379	$ 40,243	$ 6,379	$ 40,243