Restructuring Charges Restructuring charges (Details) $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 6.5
Restructuring and Related Cost, Cost Incurred to Date	9.6
Restructuring and Related Cost, Expected Cost	11.2
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	1.5
Restructuring and Related Cost, Cost Incurred to Date	3.9
Restructuring and Related Cost, Expected Cost	4.1
Reduced Depreciation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	5.3
Restructuring and Related Cost, Cost Incurred to Date	5.3
Restructuring and Related Cost, Expected Cost	5.3
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	(0.3)
Restructuring and Related Cost, Cost Incurred to Date	0.4
Restructuring and Related Cost, Expected Cost	0.4
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0.0
Restructuring and Related Cost, Cost Incurred to Date	0.0
Restructuring and Related Cost, Expected Cost	1.4
Commercial Heating and Cooling [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0.7
Restructuring and Related Cost, Cost Incurred to Date	2.4
Restructuring and Related Cost, Expected Cost	4.0
Refrigeration [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0.7
Restructuring and Related Cost, Cost Incurred to Date	2.1
Restructuring and Related Cost, Expected Cost	2.1
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	5.1
Restructuring and Related Cost, Cost Incurred to Date	5.1
Restructuring and Related Cost, Expected Cost	$ 5.1