Share-Based Compensation (Narrative) (Details) In Millions	Jun. 30, 2011
Share-based Compensation [Abstract]
Number Of Shares To Companys Target Award Level For Eligible Employees	1.4

Name:

ir_NumberOfSharesToCompanysTargetAwardLevelForEligibleEmployees

Namespace Prefix:

ir

Data Type:

xbrli:sharesItemType

Balance Type:

na

Period Type:

instant