Revenue Recognition (Revenue by Business Segment by Geography) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Contract with Customer, Liability, Revenue Recognized	$ 3,600,000	$ 600,000	$ 9,500,000	$ 2,900,000
Revenue, Net	1,244,900,000	1,059,900,000	3,624,600,000	3,229,300,000
Residential Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	835,300,000	711,000,000.0	2,494,900,000	2,155,300,000
Commercial Heating and Cooling
Disaggregation of Revenue [Line Items]
Revenue, Net	252,900,000	211,500,000	660,200,000	663,400,000
Refrigeration [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	156,700,000	137,400,000	469,500,000	410,600,000
Sales Channel, Directly to Consumer | Residential Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.72	0.73	0.70	0.72
Equipment Sales | Commercial Heating and Cooling
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.83	0.81	0.82	0.83
International [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	57,400,000	56,900,000	171,100,000	172,300,000
International [Member] | Residential Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	0	0	0	0
International [Member] | Commercial Heating and Cooling
Disaggregation of Revenue [Line Items]
Revenue, Net	100,000	700,000	600,000	800,000
International [Member] | Refrigeration [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	57,300,000	56,200,000	170,500,000	171,500,000
CANADA
Disaggregation of Revenue [Line Items]
Revenue, Net	75,800,000	72,800,000	226,900,000	236,100,000
CANADA | Residential Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	55,500,000	56,000,000.0	183,700,000	178,500,000
CANADA | Commercial Heating and Cooling
Disaggregation of Revenue [Line Items]
Revenue, Net	20,300,000	16,800,000	43,200,000	57,600,000
CANADA | Refrigeration [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	0	0	0	0
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenue, Net	1,111,700,000	930,200,000	3,226,600,000	2,820,900,000
UNITED STATES | Residential Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	779,800,000	655,000,000.0	2,311,200,000	1,976,800,000
UNITED STATES | Commercial Heating and Cooling
Disaggregation of Revenue [Line Items]
Revenue, Net	232,500,000	194,000,000.0	616,400,000	605,000,000.0
UNITED STATES | Refrigeration [Member]
Disaggregation of Revenue [Line Items]
Revenue, Net	$ 99,400,000	$ 81,200,000	$ 299,000,000.0	$ 239,100,000