Commitments and Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Expense for environmental remediation	$ 0.7	$ 1.7
Reserves for environmental matters	64.0		65.9
Reserves for environmental matters, current	21.9	22.2
Expected annual inflation rate	2.50%
Adjusted expected annual inflation rate	1.50%
Percentage of non-malignant claims, minimum	80.00%		80.00%
Total current standard product warranty reserve	140.8		147.4
Total current extended warranty liability	99.3		98.5
Commitments and performance guarantees	435.5
Trane [Member]
Settled with majority of insurers	95.00%
Segment, Discontinued Operations [Member]
Reserves for environmental matters	47.9		47.3
Extended Warranty [Member]
Product warranty expense	$ 12.4	$ 12.7