Commitments and Contingencies (Cost/Income Asbestos Related Claims after Recoveries) (Details) (Asbestos Issue [Member], USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Asbestos Issue [Member]
Continuing operations	$ (1.2)	$ (0.8)	$ (2.6)	$ (2.6)
Discontinued operations	(1.9)	(3.0)	(5.6)	(8.8)
Total	$ (3.1)	$ (3.8)	$ (8.2)	$ (11.4)

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ir_DiscontinuedOperationsCostsIncomeAsbestosRelatedSettlementAndDefense

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ir

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xbrli:monetaryItemType

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credit

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duration