Goodwill and Other Intangible Assets - Goodwill (Details) - Madison Industries IAQ Solutions Corporation $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)
Goodwill [Roll Forward]
Balance	$ 3,318.5
Foreign currency translation	(1.9)
Balance	3,316.6
Commercial
Goodwill [Roll Forward]
Balance	2,242.0
Foreign currency translation	(1.9)
Balance	2,240.1
Residential
Goodwill [Roll Forward]
Balance	1,076.5
Foreign currency translation	0.0
Balance	$ 1,076.5