Commitments, Contingencies and Guarantees (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Contingencies [Line Items]
Valuation allowance	$ (10.2)	$ (13.2)
Valuation Allowance, Deferred Tax Asset, Change in Amount	(3.2)	(2.2)	$ 1.6
Service warranty roll forward
Charges to costs and expenses	(13.9)	3.2	5.8
Product Warranty Accrual, Payments	(1.7)	(1.2)	(4.0)
Write-offs, net of recoveries	0.0	(63.8)	0.0
Exchange rate	0.5	0.2	0.9
Product Warranty And Extraordinary Rework, Ending Balance	64.7	104.8	166.4
Commitments Contingencies And Guarantees Textuals [Abstract]
Capital Commitments	119.9	114.9
Outstanding Amount Of Guarantees	21.5	27.3
Restricted Cash and Investments, Noncurrent	16.4	20.2	$ 20.0	$ 20.0
Product Liability Accrual, Component Amount	8.1	41.0
Product Liability Contingency, Loss Exposure in Excess of Accrual, Best Estimate	12.1	34.0
Industrial Revenue Bond [Member]
Commitments Contingencies And Guarantees Textuals [Abstract]
Tax Exempt Bonds	$ 376.2	$ 343.5