Reportable Business Segments (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Schedule of equity method investees
Total income from equity method investments	$ 10.5		$ 9.6		$ 10.1
Refrigeration [Member]
Schedule of equity method investees
Total income from equity method investments	2.6		2.5		1.3
Corporate and Other [Member]
Schedule of equity method investees
Total income from equity method investments	$ 7.9	[1]	$ 7.1	[1]	$ 8.8	[1]

[1] A significant portion of income for equity method investments is allocated to our Residential Heating & Cooling and Commercial Heating & Cooling segments. We allocated $5.0 million, $4.9 million and $5.6 million to those segments in 2012, 2011 and 2010 respectively.