Business Segment Information Business Segments Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Gain (loss) on sale/asset impairment	$ (111.4)		$ 0		$ (111.4)		$ 4.5
Goodwill, Impairment Loss					(111.4)	[1]
(Gain) loss on sale of property, plant and equipment					18.6		3.8
Security Technologies [Member]
Goodwill, Impairment Loss					111.4	[1]
(Gain) loss on sale of property, plant and equipment					21.5
Hussmann Divestiture [Member]
Gain (loss) on sale/asset impairment	$ (111.4)	[2]	$ 0	[2]	$ (111.4)	[2]	$ 4.5	[2]

[1] The Company performed an interim impairment test on goodwill of its Security Technologies Europe, Middle East, India, and Africa ("EMEIA") reporting unit during the third quarter of 2013. In its 2012 Form 10-K filing, the Company disclosed that the fair value of its Security Technologies EMEIA reporting unit exceeded its carrying value by 2.5% as of October 1, 2012. The Company continued to monitor the close proximity of the reporting unit's carrying value compared to its fair value and, in the third quarter, determined it was required to complete the first step of a two-step interim impairment test, as defined under U.S. GAAP. The first step of the goodwill impairment test compares the carrying value of a reporting unit to its estimated fair value. The results of the third quarter 2013 interim impairment test indicated that the estimated fair value of the Security Technologies EMEIA reporting unit was less than its carrying value; consequently, the Company completed the second step of the interim impairment test which resulted in a $111.4 million non-cash pre-tax goodwill impairment char

[2] During the nine months ended September 30, 2012, the Company recorded $4.5 million of purchase price adjustments related to the 2011 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.