Commitments and Contingencies (Cost/Income Asbestos Related Claims after Recoveries) (Details) (Asbestos Issue [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Asbestos Issue [Member]
Continuing operations	$ (1.8)	$ (3.3)
Discontinued operations	(1.3)	(4.0)
Total	$ (3.1)	$ (7.3)

Discontinued Operations Costs Income Asbestos Related Settlement And Defense

No definition available.

Name:	ir_DiscontinuedOperationsCostsIncomeAsbestosRelatedSettlementAndDefense
Namespace Prefix:	ir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration