Reportable Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 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	$ 868.0	$ 809.7	$ 2,449.5	$ 2,264.5
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	103.5	81.0	238.8	181.7
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustment	(0.4)	0.9	(0.5)	1.0
Items in (Gains) losses and other expenses, net that are excluded from segment profit	(0.2)	(1.2)	2.0	(2.0)
Restructuring charges	0.3	0.4	3.2	3.1
Interest expense, net	3.8	4.4	10.8	13.4
Other expense (income), net	0	0	(0.1)	0.1
Income from continuing operations before income taxes	100.0	76.5	223.4	166.1
Residential Heating & Cooling [Member]
Net Sales
Net Sales	433.9	386.3	1,224.5	1,070.7
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	57.0	37.7	143.7	90.7
Commercial Heating & Cooling [Member]
Net Sales
Net Sales	239.1	219.7	631.8	597.9
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	39.2	32.5	84.8	74.1
Refrigeration [Member]
Net Sales
Net Sales	195.0	203.7	593.2	595.9
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	23.9	25.1	66.5	60.6
Corporate & other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	$ (16.6)	$ (14.3)	$ (56.2)	$ (43.7)