Revenue Recognition Revenue by Business Segment Geography (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 4,194,100,000	$ 3,634,100,000	$ 3,807,200,000
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	3,646,500,000	3,160,800,000	3,304,600,000
CANADA
Disaggregation of Revenue [Line Items]
Revenues	316,300,000	257,300,000	254,700,000
International [Member]
Disaggregation of Revenue [Line Items]
Revenues	231,300,000	216,000,000.0	247,900,000
Residential Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,775,600,000	2,361,500,000	2,291,100,000
Residential Heating and Cooling [Member] | Sales Channel, Directly to Consumer [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.73	0.75	0.75
Residential Heating and Cooling [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	2,532,400,000	2,181,800,000	2,135,600,000
Residential Heating and Cooling [Member] | CANADA
Disaggregation of Revenue [Line Items]
Revenues	243,200,000	179,700,000	155,500,000
Residential Heating and Cooling [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Commercial Heating and Cooling [Member]
Disaggregation of Revenue [Line Items]
Revenues	864,800,000	800,900,000	947,400,000
Commercial Heating and Cooling [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	790,100,000	721,100,000	847,100,000
Commercial Heating and Cooling [Member] | CANADA
Disaggregation of Revenue [Line Items]
Revenues	73,100,000	77,600,000	98,500,000
Commercial Heating and Cooling [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,600,000	2,200,000	1,800,000
Refrigeration [Member]
Disaggregation of Revenue [Line Items]
Revenues	553,700,000	471,700,000	568,700,000
Refrigeration [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	324,000,000.0	257,900,000	321,900,000
Refrigeration [Member] | CANADA
Disaggregation of Revenue [Line Items]
Revenues	0	0	700,000
Refrigeration [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Revenues	229,700,000	213,800,000	246,100,000
Refrigeration [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 0.01	$ 0.01	$ 0.01