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, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost-benefits earned during the period	$ 0.1	$ 0.2	$ 0.3	$ 0.8
Interest cost on projected benefit obligation	0.8	1.2	2.4	3.6
Amortization of prior service benefit and actuarial loss, net	(1.9)	(1.6)	(5.7)	(4.8)
Net periodic pension cost	$ (1.0)	$ (0.2)	$ (3.0)	$ (0.4)