Divestitures and Discontinued Operations (Narrative) (Details) (USD $)	3 Months Ended			9 Months Ended		3 Months Ended				6 Months Ended	9 Months Ended			12 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011 Hussmann Divestiture [Member]		Jun. 30, 2011 Hussmann Divestiture [Member]	Sep. 30, 2010 Hussmann Divestiture [Member]	Jun. 30, 2011 Hussmann Divestiture [Member]	Sep. 30, 2011 Hussmann Divestiture [Member]		Sep. 30, 2010 Hussmann Divestiture [Member]	Dec. 31, 2010 Hussmann Divestiture [Member]	Sep. 30, 2010 Energy Systems Divestiture [Member]	Sep. 30, 2010 KOXKA Divestiture [Member]	Sep. 30, 2010 KOXKA Divestiture [Member]	Jun. 30, 2011 Compact Equipment [Member]	Dec. 31, 2007 Compact Equipment [Member]	Sep. 30, 2011 Other Discontinued Operations [Member]	Sep. 30, 2011 Other Discontinued Operations [Member]
Ownership Interest, Anticipated Sale Percentage, Hussmann Business								100.00%
Disposal Group After Tax Impairment						$ (23,000,000)				$ (384,000,000)				$ 0
Cash proceeds, before purchase price adjustments						370,000,000
Hussmann Parent Ownership Interest, Hussmann Business						60.00%					60.00%
IR Ownership interest, Hussmann Business						40.00%					40.00%
Hussmann Divestiture, Consideration Received						433,000,000					433,000,000
Cash proceeds received						354,000,000
Hussmann Divestiture, Equity Consideration						79,000,000
Loss on sale/asset impairment	(264,800,000)		0	(651,600,000)	0	(264,800,000)	[1],[2]		0		(651,600,000)	[1],[2]	0
Loss on sale/asset impairment after-tax						(171,000,000)
Assets held for sale (net)						580,000,000					580,000,000
Disposal Group, Accumulated Other Comprehensive Loss Net of Tax						85,000,000					85,000,000
Indemnification Obligation, Hussmann						25,000,000					25,000,000
Transaction Costs						8,400,000					11,600,000
Discontinued Operation, After-Tax Impairment Loss															8,300,000	15,100,000	53,900,000
Gross proceeds from sale of businesses																			4,900,000,000
Purchase Price Adjustments																		48,300,000
Incentive Plan Dispute, Loss Contingency, Loss In Period		21,000,000																		4,000,000	25,000,000
Incentive Plan Dispute, Amount Accrued In Period		$ 33,500,000																		$ 6,000,000	$ 39,500,000

[1] During the three and nine months ended September 30, 2011, the Company recorded a pre-tax loss on sale and impairment charges related to the Hussmann divestiture totaling $264.8 million and $651.6 million, respectively. These charges have been excluded from Segment operating income within the Climate Solutions segment as management excludes these charges from Operating income when making operating decisions about the business.

[2] Included in Loss on sale/asset impairment for the three and nine months ended September 30, 2011 are transaction costs of $8.4 million and $11.6 million, respectively.