Net Periodic Pension and Postretirement Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Anticipated cash contributions
Anticipated cash contributions to pension plans in 2017	$ 3.0
United States Pension Plan of US Entity, Defined Benefit
Components of Net Periodic Benefit Costs
Service cost	1.0	$ 2.0
Interest cost	3.0	3.0
Expected return on plan assets	(5.0)	(5.0)
Net postretirement benefit cost / Net pension cost (credit)	(1.0)
Employer Contributions
Cash contributions to defined benefit pension plan	1.0
Anticipated cash contributions
Anticipated cash contributions to pension plans in 2017	1.0
Foreign Pension Plan, Defined Benefit
Components of Net Periodic Benefit Costs
Service cost	1.0	1.0
Interest cost	2.0	3.0
Expected return on plan assets	(3.0)	(3.0)
Amortization of actuarial loss	1.0	1.0
Net postretirement benefit cost / Net pension cost (credit)	1.0	2.0
Employer Contributions
Cash contributions to defined benefit pension plan	1.0
Anticipated cash contributions
Anticipated cash contributions to pension plans in 2017	2.0
Other Postretirement Benefit Plan, Defined Benefit
Components of Net Periodic Benefit Costs
Interest cost	1.0	1.0
Amortization of prior service credit	$ (1.0)	$ (1.0)