Goodwill (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013		Dec. 31, 2012
Goodwill [Roll Forward]
December 31, 2012 (gross)	$ 8,978.9
Accumulated Impairment	(2,951.4)		(2,840.0)	[1]
Acquisitions and adjustments	0	[2]
Goodwill, Impairment Loss	111.4	[1]
Currency translation	34.3
September 30, 2013 (gross)	9,013.2
Goodwill (net)	6,061.8		6,138.9
Climate Solutions [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	5,370.6
Accumulated Impairment	(839.8)		(839.8)	[1]
Acquisitions and adjustments	(1.4)	[2]
Goodwill, Impairment Loss	0	[1]
Currency translation	27.4
September 30, 2013 (gross)	5,396.6
Goodwill (net)	4,556.8		4,530.8
Residential Solutions [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	2,317.1
Accumulated Impairment	(1,656.2)		(1,656.2)	[1]
Acquisitions and adjustments	17.7	[2]
Goodwill, Impairment Loss	0	[1]
Currency translation	0
September 30, 2013 (gross)	2,334.8
Goodwill (net)	678.6		660.9
Industrial Technologies [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	368.7
Accumulated Impairment	0		0	[1]
Acquisitions and adjustments	1.1	[2]
Goodwill, Impairment Loss	0	[1]
Currency translation	1.6
September 30, 2013 (gross)	371.4
Goodwill (net)	371.4		368.7
Security Technologies [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	922.5
Accumulated Impairment	(455.4)		(344.0)	[1]
Acquisitions and adjustments	(17.4)	[2]
Goodwill, Impairment Loss	(111.4)	[1]
Currency translation	5.3
September 30, 2013 (gross)	910.4
Goodwill (net)	$ 455.0		$ 578.5

[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 2013, the Company made reclassifications to goodwill across all segments, including a reclassification of goodwill related to a product line transfer from the Security Technologies segment to the Residential Solutions segment.