Employee Benefit And Retirement Plans (Schedule Of Other Postretirement Benefit Costs) (Details) - Other Postretirement Benefit Plan [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost-benefits earned during the period	$ 0.1	$ 0.1	$ 0.1	$ 0.3
Interest cost on projected benefit obligation	0.6	0.8	1.6	2.4
Amortization of prior service benefit and actuarial loss, net	(2.7)	(1.9)	(7.9)	(5.7)
Net periodic pension cost	$ (2.0)	$ (1.0)	$ (6.2)	$ (3.0)