Goodwill (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Goodwill
Goodwill, Beginning Balance	$ 223.2
Acquisitions/(Dispositions)	0
Other	0.5	[1]
Goodwill, Ending Balance	223.7
Residential Heating & Cooling [Member]
Goodwill
Goodwill, Beginning Balance	26.1
Acquisitions/(Dispositions)	0
Other	0	[1]
Goodwill, Ending Balance	26.1
Commercial Heating & Cooling [Member]
Goodwill
Goodwill, Beginning Balance	63.5
Acquisitions/(Dispositions)	0
Other	(0.1)	[1]
Goodwill, Ending Balance	63.4
Refrigeration [Member]
Goodwill
Goodwill, Beginning Balance	133.6
Acquisitions/(Dispositions)	0
Other	0.6	[1]
Goodwill, Ending Balance	$ 134.2

[1] Other consists primarily of changes in foreign currency translation rates.