Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Information regarding restructuring charges
Charges Incurred in 2013	$ 0.5
Charges Incurred to Date	21.1
Total Charges Expected to be Incurred	21.8
Details activity within the restructuring reserves
Beginning balance	2.4
Charged to Earnings	0.5	2.6
Cash Utilization	(1.9)
Non-Cash Utilization and Other	(0.1)
Ending balance	0.9
Severance and related expense [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0.2
Charges Incurred to Date	11.3
Total Charges Expected to be Incurred	11.4
Details activity within the restructuring reserves
Beginning balance	0.7
Charged to Earnings	0.2
Cash Utilization	(0.5)
Non-Cash Utilization and Other	0
Ending balance	0.4
Asset write-offs and accelerated depreciation [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0
Charges Incurred to Date	1.0
Total Charges Expected to be Incurred	1.0
Details activity within the restructuring reserves
Beginning balance	0
Charged to Earnings	0
Cash Utilization	0
Non-Cash Utilization and Other	0
Ending balance	0
Equipment moves [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0
Charges Incurred to Date	0.3
Total Charges Expected to be Incurred	0.3
Details activity within the restructuring reserves
Beginning balance	0
Charged to Earnings	0
Cash Utilization	0
Non-Cash Utilization and Other	0
Ending balance	0
Lease termination [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0
Charges Incurred to Date	2.6
Total Charges Expected to be Incurred	2.6
Details activity within the restructuring reserves
Beginning balance	1.2
Charged to Earnings	0
Cash Utilization	(1.2)
Non-Cash Utilization and Other	0
Ending balance	0
Other [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0.3
Charges Incurred to Date	5.9
Total Charges Expected to be Incurred	6.5
Details activity within the restructuring reserves
Beginning balance	0.5
Charged to Earnings	0.3
Cash Utilization	(0.2)
Non-Cash Utilization and Other	(0.1)
Ending balance	0.5
Residential Heating & Cooling [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0.2
Charges Incurred to Date	6.5
Total Charges Expected to be Incurred	7.1
Commercial Heating & Cooling [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0
Charges Incurred to Date	7.8
Total Charges Expected to be Incurred	7.8
Refrigeration [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0.3
Charges Incurred to Date	6.8
Total Charges Expected to be Incurred	6.9
Corporate & other [Member]
Information regarding restructuring charges
Charges Incurred in 2013	0
Charges Incurred to Date	0
Total Charges Expected to be Incurred	$ 0