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v3.3.1.900

Guarantees, Indemnities and Warranties - Additional Information (Detail) $ in Millions | Dec. 31, 2015 USD ($)
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Guarantees [Abstract] |
Guarantees, letters of credit and similar arrangements outstanding | $ 167.1

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- Definition Guarantees, letters of credit and similar arrangements outstanding. + References No definition available. + Details
Name: | itt_GuaranteesLettersOfCreditAndSimilarArrangementsOutstanding
Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_GuaranteesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration