Pension And Other Post-retirement Benefits (Components Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
United States Pension Plan
Defined Benefit Plan Disclosure
Service cost	$ 2.7		$ 7.6
Interest cost	7.0		19.7
Expected return on plan assets	(12.7)		(35.9)
Net periodic benefit cost	(3.0)		(8.6)
Pension contributions			2.5
Foreign Plan
Defined Benefit Plan Disclosure
Service cost	5.9	$ 2.9	15.8	$ 8.8
Interest cost	5.5	2.7	15.0	8.2
Expected return on plan assets	(9.7)	(2.1)	(26.7)	(6.3)
Amortization of prior service cost (credit)	0.3	0.2	0.6	0.6
Amortization of actuarial loss (gain), net	0.7	0.2	1.9	0.7
Settlement cost				0.1
Net periodic benefit cost	2.7	$ 3.9	6.6	$ 12.1
Pension contributions			24.9
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure
Interest cost	0.1		0.2
Net periodic benefit cost	$ 0.1		$ 0.2