Pension And Other Benefit Programs (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cost Of Goods Sold [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.9	$ 1.3
SG&A Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.5	0.9
Other Non-operating Income, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic credits excluding service cost	$ 8.3	$ 7.9