v3.26.3
Revenue Recognition (Revenue by Business Segment by Geography) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Disaggregation of Revenue [Line Items]        
Contract with Customer, Liability, Revenue Recognized $ 0 $ 5,400,000 $ 3,000,000.0 $ 8,500,000
Revenue, Net 1,572,500,000 1,426,800,000 4,252,900,000 4,000,300,000
Residential Heating and Cooling [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net 937,200,000 912,900,000 2,522,800,000 2,643,600,000
Commercial Heating and Cooling        
Disaggregation of Revenue [Line Items]        
Revenue, Net 635,300,000 513,900,000 1,730,100,000 1,356,700,000
Sales Channel, Directly to Consumer | Residential Heating and Cooling [Member]        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 0.70 0.75 0.72 0.74
Equipment Sales | Commercial Heating and Cooling        
Disaggregation of Revenue [Line Items]        
Revenue from Contract with Customer, Excluding Assessed Tax 82 0.80 0.83 0.80
CANADA        
Disaggregation of Revenue [Line Items]        
Revenue, Net 107,200,000 98,400,000 296,300,000 274,800,000
CANADA | Residential Heating and Cooling [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net 65,300,000 62,800,000 171,500,000 184,700,000
CANADA | Commercial Heating and Cooling        
Disaggregation of Revenue [Line Items]        
Revenue, Net 41,900,000 35,600,000 124,800,000 90,100,000
UNITED STATES        
Disaggregation of Revenue [Line Items]        
Revenue, Net 1,465,300,000 1,328,400,000 3,956,600,000 3,725,500,000
UNITED STATES | Residential Heating and Cooling [Member]        
Disaggregation of Revenue [Line Items]        
Revenue, Net 871,900,000 850,100,000 2,351,300,000 2,458,900,000
UNITED STATES | Commercial Heating and Cooling        
Disaggregation of Revenue [Line Items]        
Revenue, Net $ 593,400,000 $ 478,300,000 $ 1,605,300,000 $ 1,266,600,000