Restructuring (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Costs [Abstract]
Restructuring costs	[1]	$ 12.7	$ 5.3	$ 32.9
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		10.1	6.5
Restructuring Programs 2014 to 2016 [Member]
Restructuring Program [Roll Forward]
Balance at beginning of period		6.7	20.9
Charged to expense - termination benefits			2.4
Charged to expense - other			2.9
Payments			(20.6)
Other, net			1.1
Balance at end of period			6.7	$ 20.9
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		1.3	6.5
Restructuring reserves included in other liabilities		0.1	0.2
Restructuring Programs 2014 to 2016 [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs			48.0
Restructuring Programs 2014 to 2016 [Member] | Industrials [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs			38.5
Restructuring Programs 2014 to 2016 [Member] | Energy [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs			6.3
Restructuring Programs 2014 to 2016 [Member] | Medical [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs			3.2
Restructuring Programs 2018 [Member]
Restructuring Program [Roll Forward]
Balance at beginning of period		0.0
Charged to expense - termination benefits		11.5
Charged to expense - other		1.2
Payments		(4.1)
Other, net		0.2
Balance at end of period		8.8	$ 0.0
Restructuring Reserves [Abstract]
Restructuring reserves included in accrued liabilities		8.8
Restructuring Programs 2018 [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs		12.7
Restructuring Programs 2018 [Member] | Industrials [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs		7.2
Restructuring Programs 2018 [Member] | Energy [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs		3.6
Restructuring Programs 2018 [Member] | Medical [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs		1.2
Restructuring Programs 2018 [Member] | Corporate [Member] | Other Operating Expense, Net [Member]
Restructuring Costs [Abstract]
Restructuring costs		$ 0.7

[1] See Note 4 "Restructuring."