Divestitures (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Gain (Loss) on Disposition of Business and Related Property									$ 0	$ (10,600,000)	$ (27,000,000.0)
Restructuring Charges									10,800,000	10,300,000	3,000,000.0
Revenues	$ 914,000,000.0	$ 1,055,000,000.0	$ 941,300,000	$ 723,800,000	$ 885,000,000.0	$ 1,032,900,000	$ 1,099,100,000	$ 790,300,000	3,634,100,000	3,807,200,000	3,883,900,000
Contract with Customer, Liability, Revenue Recognized									7,200,000	3,300,000	4,800,000
Pre-tax income (loss) from LIFO inventory liquidations									700,000	200,000	0
Residential Heating and Cooling [Member]
Revenues									2,361,500,000	2,291,100,000	2,225,000,000.0
Commercial Heating and Cooling [Member]
Revenues									800,900,000	947,400,000	900,700,000
Revenue from Contract with Customer, Excluding Assessed Tax									0.85	0.86	0.86
Refrigeration [Member]
Revenues									471,700,000	568,700,000	758,200,000
COVID-19 [Member]
Restructuring Charges									$ 10,100,000
Discontinued Operations, Disposed of by Sale [Member] | Kysor Warren Business [Member] [Domain]
Proceeds from Divestiture of Businesses										49,000,000.0
Disposal Group, Including Discontinued Operation, Asset Sold, Net										52,000,000.0
Disposal Group, Including Discontinued Operation, AOCI Reclassification Adjustment										2,100,000
Disposal Group, Including Discontinued Operation, Selling Expenses										5,500,000
Gain (Loss) on Disposition of Business										$ 10,600,000
Discontinued Operations, Disposed of by Sale [Member] | Australia and Asia
Gain (Loss) on Disposition of Business and Related Property											(13,300,000)
Proceeds from Divestiture of Businesses											82,900,000
Disposal Group, Including Discontinued Operation, Asset Sold, Net											87,200,000
Disposal Group, Including Discontinued Operation, AOCI Reclassification Adjustment											3,200,000
Disposal Group, Including Discontinued Operation, Selling Expenses											5,800,000
Loss (gain) from natural disasters, net of insurance recoveries											10,300,000
Discontinued Operations, Disposed of by Sale [Member] | South America [Member]
Gain (Loss) on Disposition of Business and Related Property											(37,500,000)
Proceeds from Divestiture of Businesses											4,200,000
Disposal Group, Including Discontinued Operation, Asset Sold, Net											14,100,000
Disposal Group, Including Discontinued Operation, AOCI Reclassification Adjustment											24,700,000
Disposal Group, Including Discontinued Operation, Selling Expenses											2,900,000
Loss (gain) from natural disasters, net of insurance recoveries											1,200,000
Discontinued Operations, Disposed of by Sale [Member] | Australia
Gain (Loss) on Disposition of Business and Related Property											23,800,000
Proceeds from Divestiture of Businesses											37,200,000
Disposal Group, Including Discontinued Operation, Selling Expenses											$ (1,500,000)