Pension Plans and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Defined contribution retirement plan
Percentage that the employer contributes of employee contributions under 401(k) plan			100.00%
Maximum percentage of employee compensation match by employer to defined contribution plan			6.00%
Costs related to defined contribution retirement plan	$ 2.7	$ 2.5	$ 5.4	$ 5.3
U.S. Pension Plans
Net Periodic Benefit Cost
Service cost	4.4	6.5	9.4	12.9
Interest cost	10.2	13.8	20.7	27.6
Expected return on plan assets	(14.2)	(17.6)	(28.8)	(35.2)
Amortization of prior service credit	0.0	0.0	(0.1)	0.1
Amortization of net deferred actuarial loss	0.0	0.0	0.0	0.0
Curtailment gain	0.0	0.0	0.0	0.0
Net periodic benefit cost (income)	0.4	2.7	1.2	5.4
Less: discontinued operations	0.0	(0.8)	(0.5)	(1.5)
Net periodic benefit cost (income) from continuing operations	0.4	1.9	0.7	3.9
Non-U.S. Pension Plans
Net Periodic Benefit Cost
Service cost	1.7	2.9	3.7	5.9
Interest cost	1.3	4.0	3.3	8.2
Expected return on plan assets	(0.3)	(3.3)	(1.3)	(6.7)
Amortization of prior service credit	0.0	0.0	0.0	0.0
Amortization of net deferred actuarial loss	0.0	0.0	0.0	0.0
Curtailment gain	0.7	0.0	0.7	0.0
Net periodic benefit cost (income)	2.0	3.6	5.0	7.4
Less: discontinued operations	0.0	(0.5)	(0.2)	(1.0)
Net periodic benefit cost (income) from continuing operations	2.0	3.1	4.8	6.4
Other Postretirement
Net Periodic Benefit Cost
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.0	0.0	0.0	0.1
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortization of prior service credit	(0.6)	(0.9)	(1.2)	(1.9)
Amortization of net deferred actuarial loss	0.1	0.1	0.3	0.3
Curtailment gain	0.0	0.0	0.0	0.0
Net periodic benefit cost (income)	(0.5)	(0.8)	(0.9)	(1.5)
Less: discontinued operations	0.0	0.4	0.0	0.8
Net periodic benefit cost (income) from continuing operations	$ (0.5)	$ (0.4)	$ (0.9)	$ (0.7)