Reportable Business Segments (Geographic Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 4,718.4	$ 4,194.1	$ 3,634.1
Total property, plant and equipment, net	548.9	515.1	464.3
United States [Member]
Segment Reporting Information [Line Items]
Revenues	4,180.5	3,646.5	3,160.8
Total property, plant and equipment, net	408.8	381.0	352.9
Mexico [Member]
Segment Reporting Information [Line Items]
Total property, plant and equipment, net	110.9	102.7	79.2
Canada [Member]
Segment Reporting Information [Line Items]
Revenues	303.6	316.3	257.3
Total property, plant and equipment, net	2.1	2.1	2.2
International [Member]
Segment Reporting Information [Line Items]
Revenues	234.3	231.3	216.0
Total property, plant and equipment, net	27.1	29.3	30.0
Residential Heating and Cooling [Member]
Segment Reporting Information [Line Items]
Revenues	3,198.3	2,775.6	2,361.5
Residential Heating and Cooling [Member] | United States [Member]
Segment Reporting Information [Line Items]
Revenues	2,957.1	2,532.4	2,181.8
Residential Heating and Cooling [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Revenues	241.2	243.2	179.7
Residential Heating and Cooling [Member] | International [Member]
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0
Commercial Heating and Cooling [Member]
Segment Reporting Information [Line Items]
Revenues	900.7	864.8	800.9
Commercial Heating and Cooling [Member] | United States [Member]
Segment Reporting Information [Line Items]
Revenues	837.7	790.1	721.1
Commercial Heating and Cooling [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Revenues	62.4	73.1	77.6
Commercial Heating and Cooling [Member] | International [Member]
Segment Reporting Information [Line Items]
Revenues	0.6	1.6	2.2
Refrigeration [Member]
Segment Reporting Information [Line Items]
Revenues	619.4	553.7	471.7
Refrigeration [Member] | United States [Member]
Segment Reporting Information [Line Items]
Revenues	385.7	324.0	257.9
Refrigeration [Member] | Canada [Member]
Segment Reporting Information [Line Items]
Revenues	0.0	0.0	0.0
Refrigeration [Member] | International [Member]
Segment Reporting Information [Line Items]
Revenues	$ 233.7	$ 229.7	$ 213.8