Shareholders' Investment (Schedule Of Accumulated Balances Related To Each Component Of Other Comprehensive Income (Loss)) (Details) (USD $)	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Shareholders' Investment [Abstract]
Beginning balance, Accumulated Other Comprehensive (Loss) Income	$ (66,600,000)		$ (56,200,000)
Beginning balance, Change in Derivative Instruments Designated As Cash Flow Hedges	(1,400,000)
Beginning balance, Foreign Currency Translation Adjustment	41,100,000		29,000,000
Beginning balance, Benefit Plan Adjustments	(106,300,000)		(85,200,000)
Other comprehensive income (loss) before income taxes, Change in Derivative Instruments Designated As Cash Flow Hedges	3,700,000		(500,000)
Other comprehensive income (loss) before income taxes, Foreign Currency Translation Adjustment	4,700,000		28,900,000
Other comprehensive income (loss) before income taxes, Benefit Plan Adjustments	2,600,000		2,000,000
Other comprehensive income (loss) before income taxes, Available-for-Sale Securities			(500,000)
Other comprehensive income (loss) before income taxes	11,000,000		29,900,000
Income tax (provision) benefit related to other comprehensive income (loss) items, Change in Derivative Instruments Designated As Cash Flow Hedges	(1,400,000)	[1]		[1]
Income tax (provision) benefit related to other comprehensive income (loss) items, Foreign Currency Translation Adjustment		[1]		[1]
Income tax (provision) benefit related to other comprehensive income (loss) items, Benefit Plan Adjustments	(900,000)	[1]	(700,000)	[1]
Income tax (provision) benefit related to other comprehensive income (loss) items, Available-for-Sale Securities			100,000	[1]
Income tax (provision) benefit related to other comprehensive income (loss) items	(2,300,000)	[1]	(600,000)	[1]
Ending balance, Accumulated Other Comprehensive (Loss) Income	(57,900,000)		(26,900,000)
Ending balance, Change in Derivative Instruments Designated As Cash Flow Hedges	900,000		(500,000)
Ending balance, Foreign Currency Translation Adjustment	45,800,000		57,900,000
Ending balance, Benefit Plan Adjustments	(104,600,000)		(83,900,000)
Ending balance, Available-for-Sale Securities			$ (400,000)

[1] Income taxes are not provided for foreign currency translation adjustments.