Reportable Business Segments (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Sales
Net Sales	$ 937.0	$ 872.1	$ 1,624.7	$ 1,516.2
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	73.5	88.5	68.7	96.3
Reconciliation to income from continuing operations before income taxes:
Special product quality adjustment	(2.4)		(2.4)
Items in losses and other expenses, net that are excluded from segment profit	1.0	6.0	2.0	6.2
Restructuring charges	2.4	3.2	3.6	10.3
Interest expense, net	4.3	3.1	8.4	5.6
OTHER EXPENSE, net	0.1	0.1	0.1	0.1
Income (loss) from continuing operations before income taxes	68.1	76.1	57.0	74.1
Residential Heating & Cooling [Member]
Net Sales
Net Sales	395.1	413.4	667.1	697.6
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	33.2	52.5	32.0	59.6
Commercial Heating & Cooling [Member]
Net Sales
Net Sales	198.3	175.8	337.1	295.4
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	27.1	27.8	33.0	31.3
Service Experts [Member]
Net Sales
Net Sales	145.4	167.6	261.9	294.7
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	3.2	12.8	(5.0)	8.2
Refrigeration [Member]
Net Sales
Net Sales	217.5	139.8	392.6	271.2
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	21.4	15.3	35.0	30.2
Corporate and Other [Member]
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	(11.4)	(19.6)	(26.0)	(32.8)
Eliminations [Member]
Net Sales
Net Sales	(19.3)	(24.5)	(34.0)	(42.7)
Segment Profit (Loss)
Subtotal that includes segment profit and eliminations	$ 0.2	$ (0.3)	$ (0.3)	$ (0.2)