Equity - Reconciliation of Reclassifications From Accumulated Other Comprehensive Income (Loss), Net of Income Tax (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Cost of sales	$ 285.9	$ 266.0
Total before income taxes	1.1	(5.9)
Income tax benefit (provision)	(4.2)	(1.9)
Net loss	(3.1)	(7.8)
Other income (expense) - net	(2.1)	(4.0)
Provision for income taxes	4.2	1.9
Reclassification out of Accumulated Other Comprehensive Income
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Net loss	(0.6)	(0.2)
Gains and Losses on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Total before income taxes		(0.1)
Net loss		(0.1)
Gains and Losses on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income | Foreign Currency Exchange Contracts
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Cost of sales		(0.1)
Actuarial Losses | Reclassification out of Accumulated Other Comprehensive Income
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Other income (expense) - net	(1.3)	(1.1)
Amortization of Prior Service Cost | Reclassification out of Accumulated Other Comprehensive Income
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Other income (expense) - net	0.7	0.7
Pension & Postretirement | Reclassification out of Accumulated Other Comprehensive Income
Schedule of Reclassifications out of Accumulated Comprehensive Income (Loss) [Line Items]
Total before income taxes	(0.6)	(0.4)
Income tax benefit (provision)		(0.3)
Net loss	$ (0.6)	(0.1)
Provision for income taxes		$ 0.3