Restructuring (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Restructuring Costs [Abstract]
Restructuring charges	[1]	$ 0.8	$ 0.0	$ 2.8	$ 0.0
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		5.8		5.8		$ 10.1
Restructuring Programs 2018 [Member]
Restructuring Program [Roll Forward]
Balance at beginning of period				10.1
Charged to expense - Termination benefits				2.4
Charged to expense - Other				0.4
Payments				(7.0)
Other, net				(0.1)
Balance at end of period		5.8		5.8
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		$ 5.8		5.8		$ 10.1
Restructuring Programs 2018 [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges				2.8
Restructuring Programs 2018 [Member] | Industrials [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges				1.9
Restructuring Programs 2018 [Member] | Energy [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges				1.1
Restructuring Programs 2018 [Member] | Medical [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring charges				$ (0.2)

[1] See Note 3 “Restructuring.”