Business Segment Information Business Segments Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended				12 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011		Dec. 31, 2011
Gain (loss) on sale/asset impairment	$ 0		$ (264.8)		$ 4.5		$ (651.6)
Climate Solutions [Member]
Gain on sale of assets from restructured business in China							23
Hussmann Divestiture [Member]
Gain (loss) on sale/asset impairment	$ 0	[1]	$ (264.8)	[1]	$ 4.5	[1]	$ (651.6)	[1]	$ (646.9)

[1] During the three and nine months ended September 30, 2011, the Company recorded a pre-tax loss on sale/asset impairment charge related to the Hussmann divestiture totaling $264.8 million and $651.6 million, respectively. During the nine months ended September 30, 2012, the Company recorded $4.5 million of purchase price adjustments related to the Hussmann sale. These amounts have been excluded from Segment operating income within the Climate Solutions segment as management excludes these charges from Operating income when making operating decisions about the business.