Reportable Business Segments (Capital Expenditures by Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Payments to Acquire Property, Plant, and Equipment	$ 101.1	$ 106.8	$ 78.5
Residential Heating and Cooling [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Property, Plant, and Equipment	42.4	70.0	44.0
Commercial Heating and Cooling [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Property, Plant, and Equipment	21.5	4.3	5.9
Refrigeration [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Property, Plant, and Equipment	11.2	11.5	9.2
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Payments to Acquire Property, Plant, and Equipment	$ 26.0	$ 21.0	$ 19.4