Reportable Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Net Sales
Net Sales	$ 684.9	$ 809.7	$ 840.4	$ 614.4	$ 648.5	$ 801.2	$ 808.6	$ 582.6	$ 2,949.4	[1]	$ 2,840.9	[1]	$ 2,585.2	[1]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									224.2	[2]	197.8	[2]	220.0	[2]
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustment									1.1		(4.3)		(0.2)
Items in (Gains) losses and other expenses, net that are excluded from segment profit									(0.2)	[3]	5.2	[3]	4.3	[3]
Restructuring charges					1.2	8.0	1.0	2.3	4.2		12.5		11.4
Interest expense, net									17.1		16.8		12.8
Other expense, net									0.3		0.3		1.0
Income from continuing operations before income taxes									201.7		167.3		190.7
Residential Heating & Cooling [Member]
Net Sales
Net Sales									1,375.8	[1]	1,259.5	[1]	1,338.5	[1]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									102.9	[2]	87.6	[2]	146.8	[2]
Commercial Heating & Cooling [Member]
Net Sales
Net Sales									785.4	[1]	776.2	[1]	695.8	[1]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									99.5	[2]	87.6	[2]	77.8	[2]
Refrigeration [Member]
Net Sales
Net Sales									788.2	[1]	805.2	[1]	550.9	[1]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									81.9	[2]	77.5	[2]	61.4	[2]
Corporate & other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations									$ (60.1)	[2]	$ (54.9)	[2]	$ (66.0)	[2]

[1] On a consolidated basis, no revenues from transactions with a single customer were 10% or greater of our consolidated net sales for any of the periods presented.

[2] We define segment profit and loss as a segment's income or loss from continuing operations before income taxes included in the accompanying Consolidated Statements of Operations, excluding the following:•Special product quality adjustments;•Items in (Gains) losses and other expenses, net (see table note 3 below);•Restructuring charges;•Goodwill, long-lived asset, and equity method investment impairments;•Interest expense, net;•Other expense, net.

[3] Items in (Gains) losses and other expenses, net that are excluded from segment profit include the following: asset impairment, net change in unrealized gains and/or losses on open futures contracts, special legal contingency charge, and other items.