Restructuring (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Restructuring Costs [Abstract]
Restructuring charges	[1]	$ 2.0	$ 0.0
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		8.7		$ 10.1
Restructuring Programs 2018 [Member]
Restructuring Program [Roll Forward]
Balance at beginning of period		10.1
Charged to expense - Termination benefits		1.3
Charged to expense - Other		0.7
Payments		(3.3)
Other, net		(0.1)
Balance at end of period		8.7
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		8.7		$ 10.1
Restructuring Programs 2018 [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges		2.0
Restructuring Programs 2018 [Member] | Industrials [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges		0.8
Restructuring Programs 2018 [Member] | Energy [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges		1.5
Restructuring Programs 2018 [Member] | Medical [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges		$ (0.3)

[1] See Note 3 "Restructuring."