Restructuring Activities (Restructuring Reserve) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2009
Restructuring Reserve, Beginning Balance	$ 28.0		$ 53.1
Additions	24.3		45.3	109.0
Cash and non-cash uses	(39.3)		(67.6)
Currency translation	0.1		(2.8)
Restructuring Reserve, Ending Balance	13.1		28.0	53.1
Climate Solutions [Member]
Restructuring Reserve, Beginning Balance	3.2		14.5
Additions	14.9		23.7	35.9
Cash and non-cash uses	(14.2)		(33.6)
Currency translation	0		(1.4)
Restructuring Reserve, Ending Balance	3.9		3.2	14.5
Residential Solutions [Member]
Restructuring Reserve, Beginning Balance	3.2		7.8
Additions	2.7		0.6	8.9
Cash and non-cash uses	(4.3)		(5.2)
Currency translation	0		0
Restructuring Reserve, Ending Balance	1.6		3.2	7.8
Industrial Technologies [Member]
Restructuring Reserve, Beginning Balance	10.1		4.3
Additions	6.7	[1]	17.9	27.1
Cash and non-cash uses	(12.6)		(11.6)
Currency translation	0		(0.5)
Restructuring Reserve, Ending Balance	4.2		10.1	4.3
Restructuring Reserve, Accrual Adjustment	6.7
Security Technologies [Member]
Restructuring Reserve, Beginning Balance	8.1		18.2
Additions	(0.3)	[2]	3.1	23.9
Cash and non-cash uses	(6.2)		(12.3)
Currency translation	0.1		(0.9)
Restructuring Reserve, Ending Balance	1.7		8.1	18.2
Restructuring Reserve, Accrual Adjustment	2.2
Corporate and Other [Member]
Restructuring Reserve, Beginning Balance	3.4		8.3
Additions	0.3		0	13.2
Cash and non-cash uses	(2.0)		(4.9)
Currency translation	0		0
Restructuring Reserve, Ending Balance	$ 1.7		$ 3.4	$ 8.3

[1] Amount includes the reversal of $6.7 million of previously accrued restructuring charges.

[2] Amount includes the reversal of $2.2 million of previously accrued restructuring charges.