Reportable Business Segments (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 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	$ 913.1	$ 840.4	$ 1,581.5	$ 1,454.8
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	105.7	81.0	135.3	100.6
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustment	0.1	0.5	(0.1)	0.1
Items in (Gains) losses and other expenses, net that are excluded from segment profit	0.8	0.6	2.2	(0.9)
Restructuring charges	2.4	0.1	2.9	2.7
Interest expense, net	3.6	4.3	7.0	9.0
Other expense (income), net	(0.2)	0.1	(0.1)	0.1
Income from continuing operations before income taxes	99.0	75.4	123.4	89.6
Residential Heating & Cooling [Member]
Net Sales
Net Sales	476.2	411.9	790.7	684.5
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	66.2	42.0	86.7	53.0
Commercial Heating & Cooling [Member]
Net Sales
Net Sales	229.6	221.4	392.6	378.1
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	34.6	33.2	45.7	41.5
Refrigeration [Member]
Net Sales
Net Sales	207.3	207.1	398.2	392.2
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	25.8	21.2	42.5	35.5
Corporate & other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	$ (20.9)	$ (15.4)	$ (39.6)	$ (29.4)