Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 30, 2011	Mar. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Jan. 19, 2010	Dec. 31, 2008	Jul. 20, 2007
Income tax holiday, aggregate dollar amount				$ 15.2	$ 10.1
Undistributed earnings				5,547.8	5,389.4
Net Operating Loss Carryforward Benefit Would Be Recorded In Additional Paid In Capital				176.3
Unrecognized tax benefits				536.9	534.1	525.1		589.6
Unrecognized tax benefits that would impact effective tax rate				467.5
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued				108.3	100.4
Recognition of interest and penalties net of tax				12.3	19.1
Period Changes In Unrecognized Tax Benefit, in months			12
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities			21.4	3.7	11.9	33.4
Withholding Tax Percentage Proposed									30.00%
IRS assertion of additional taxes due									84
Penalty percentage on asserted underpayment of tax							30.00%
Non-cash charge to income tax expense		40.5
Tax error correction	30			35
Tax benefit to continuing operations				187.2	228.1	81.5
Discontinued Operation, Tax Effect of Discontinued Operation				(69.9)	(61.3)	(87.6)
Tax charges from continuing operations associated with deferred tax asset valuation and write off of tax credit carryforwards						35
Investments in Foreign Subsidiaries and Foreign Corporate Joint Ventures that are Essentially Permanent in Duration [Member]
Undistributed earnings				6,600.0
Trane [Member]
Indemnification on spin-off from unrecognized tax benefit				7.6
Immaterial accounting error [Member]
Tax error correction						(13)
Discontinued Operation, Tax Effect of Discontinued Operation						29.0
Decrease to valuation allowance [Member]
Tax benefit to continuing operations				(27.0)	(20.0)
Reduction in liability for unrecognized tax benefits [Member]
Discontinued operations, tax benefit						$ 22.0