Reportable Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Net sales, segment profit (loss) by business segment and reconciliation of segment profit (loss) to Income from Continuing Operations before income taxes
Number Of Business Segments	3
Net Sales
Net Sales	$ 668.4		$ 614.4
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	29.4	[1]	19.6	[1]
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustment	(0.2)		(0.4)
Items in (Gains) losses and other expenses, net that are excluded from segment profit	1.3	[2]	(1.5)	[2]
Restructuring charges	0.5		2.6
Interest expense, net	3.4		4.7
Other expense, net	0.1		0
Income from continuing operations before income taxes	24.4		14.2
Residential Heating & Cooling [Member]
Net Sales
Net Sales	314.5		272.6
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	20.5	[1]	11.0	[1]
Commercial Heating & Cooling [Member]
Net Sales
Net Sales	163.0		156.7
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	11.1	[1]	8.3	[1]
Refrigeration [Member]
Net Sales
Net Sales	190.9		185.1
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	16.7	[1]	14.2	[1]
Corporate & other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	(18.9)	[1]	(13.9)	[1]
Parent [Member]
Reconciliation to income from continuing operations before income taxes:
Other expense, net	$ 0

[1] 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 Losses (gains) and other expenses, net (see table note 2 below);•Restructuring charges;•Goodwill, long-lived asset, and equity method investment impairments;•Interest expense, net;•Other expense, net.

[2] Items in Losses (gains) 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.