Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Information regarding restructuring charges
Charges Incurred in 2012			$ 3.7
Charges Incurred to Date			65.2
Total Charges Expected to be Incurred			66.8
Details activity within the restructuring reserves
Beginning balance			2.6
Charged to Earnings	0.6	2.4	3.7	3.6
Cash Utilization			(2.2)
Non-Cash Utilization and Other			0.1
Ending balance	4.2		4.2
Severance and related expense [Member]
Information regarding restructuring charges
Charges Incurred in 2012			0.4
Charges Incurred to Date			28.9
Total Charges Expected to be Incurred			29.3
Details activity within the restructuring reserves
Beginning balance			2.5
Charged to Earnings			0.4
Cash Utilization			(1.2)
Non-Cash Utilization and Other
Ending balance	1.7		1.7
Asset write-offs and accelerated depreciation [Member]
Information regarding restructuring charges
Charges Incurred to Date			10.1
Total Charges Expected to be Incurred			10.1
Details activity within the restructuring reserves
Charged to Earnings
Cash Utilization
Non-Cash Utilization and Other
Ending balance
Equipment moves [Member]
Information regarding restructuring charges
Charges Incurred in 2012			0.1
Charges Incurred to Date			1.7
Total Charges Expected to be Incurred			1.9
Details activity within the restructuring reserves
Charged to Earnings			0.1
Cash Utilization			(0.1)
Non-Cash Utilization and Other
Ending balance
Lease termination [Member]
Information regarding restructuring charges
Charges Incurred in 2012			2.4
Charges Incurred to Date			9.2
Total Charges Expected to be Incurred			9.2
Details activity within the restructuring reserves
Charged to Earnings			2.4
Cash Utilization
Non-Cash Utilization and Other
Ending balance	2.4		2.4
Other [Member]
Information regarding restructuring charges
Charges Incurred in 2012			0.8
Charges Incurred to Date			15.3
Total Charges Expected to be Incurred			16.3
Details activity within the restructuring reserves
Beginning balance			0.1
Charged to Earnings			0.8
Cash Utilization			(0.9)
Non-Cash Utilization and Other			0.1
Ending balance	0.1		0.1
Residential Heating & Cooling [Member]
Information regarding restructuring charges
Charges Incurred in 2012			2.6
Charges Incurred to Date			20.3
Total Charges Expected to be Incurred			21.5
Commercial Heating & Cooling [Member]
Information regarding restructuring charges
Charges Incurred to Date			6.9
Total Charges Expected to be Incurred			6.9
Service Experts [Member]
Information regarding restructuring charges
Charges Incurred in 2012			0.9
Charges Incurred to Date			9.3
Total Charges Expected to be Incurred			9.4
Refrigeration [Member]
Information regarding restructuring charges
Charges Incurred in 2012			0.3
Charges Incurred to Date			23.0
Total Charges Expected to be Incurred			23.3
Corporate & other [Member]
Information regarding restructuring charges
Charges Incurred in 2012			(0.1)
Charges Incurred to Date			5.7
Total Charges Expected to be Incurred			$ 5.7