Other, Net (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended					3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Devaluation of Venezuela Bolivar [Member]	Mar. 31, 2013 Bolivar to US Dollar exchange rate [Member]	Dec. 31, 2012 Bolivar to US Dollar exchange rate [Member]	Mar. 31, 2013 HussmannBusinessEquityOwnership [Member]	Mar. 31, 2012 HussmannBusinessEquityOwnership [Member]	Mar. 31, 2013 Hussmann Divestiture [Member]
Component of Other Income, Nonoperating [Line Items]
Interest income	$ 3.5	$ 4.7
Exchange gain (loss)	(6.9)	(1.8)	8.7
Earnings (loss) from equity investments						(4.2)	(5.2)
Other	0.6	2.1
Other, net	$ (7.0)	$ (0.2)
IR ownership interest, hussmann parent								37.20%
Exchange rate				6.3	4.29