Goodwill and Other Intangible Assets - Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2026 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 3,318.5
Foreign currency translation	(4.4)
Ending balance	3,314.1
Commercial
Goodwill [Roll Forward]
Beginning balance	2,242.0
Foreign currency translation	(4.4)
Ending balance	2,237.6
Residential
Goodwill [Roll Forward]
Beginning balance	1,076.5
Foreign currency translation	0.0
Ending balance	$ 1,076.5