Revenue Recognition (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Contract with Customer, Liability, Revenue Recognized	$ 600,000	$ 2,300,000
Home Comfort Solutions | Sales Channel, Directly to Consumer
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0.75	0.73
Commercial Heating and Cooling | Equipment Sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 83	$ 0.79