Goodwill (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013		Dec. 31, 2012
Goodwill [Roll Forward]
December 31, 2012 (gross)	$ 8,978.9
Acquisitions and adjustments	0	[1]
Currency translation	(26.3)
June 30, 2013 (gross)	8,952.6
Accumulated Impairment	(2,840.0)	[2]
Goodwill (net)	6,112.6		6,138.9
Climate Solutions [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	5,370.6
Acquisitions and adjustments	(1.4)	[1]
Currency translation	(19.9)
June 30, 2013 (gross)	5,349.3
Accumulated Impairment	(839.8)	[2]
Goodwill (net)	4,509.5
Residential Solutions [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	2,317.1
Acquisitions and adjustments	10.3	[1]
Currency translation	0
June 30, 2013 (gross)	2,327.4
Accumulated Impairment	(1,656.2)	[2]
Goodwill (net)	671.2
Industrial Technologies [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	368.7
Acquisitions and adjustments	1.1	[1]
Currency translation	(1.4)
June 30, 2013 (gross)	368.4
Accumulated Impairment	0	[2]
Goodwill (net)	368.4
Security Technologies [Member]
Goodwill [Roll Forward]
December 31, 2012 (gross)	922.5
Acquisitions and adjustments	(10.0)	[1]
Currency translation	(5.0)
June 30, 2013 (gross)	907.5
Accumulated Impairment	(344.0)	[2]
Goodwill (net)	$ 563.5

[1] 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.

[2] No impairment charges were recorded by the Company in 2013 or 2012.