Commitments And Contingencies (Schedule Of Changes In Environmental Accrued Liabilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at beginning of the year	$ 119.9	$ 121.1	$ 125.9
Environmental expenses	8.3	9.3	10.3
Net cash payments	(11.0)	(9.8)	(14.7)
Currency translation and other	0.1	(0.7)	(0.4)
Balance at end of year	$ 117.3	$ 119.9	$ 121.1