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Schedule of Segment Reporting Information by Segment Revenue (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Segment Reporting Information [Line Items] |  |  |  |
Transformation costs excluded from segment operating income | $ 0.8 | $ 0.9 | $ 3.0 | $ 1.0

X
- Definition Transformation cost excluded from segment operating income. + References No definition available. + Details
Name: | itt_TransformationCostExcludedFromSegmentOperatingIncome
Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration