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Income Taxes - Attributes Available for Utilization (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012
U.S. federal net operating losses [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | $ 2.6
First year of expiration | 2023
U.S. state net operating losses [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | 2,478.9
First year of expiration | 2013
U.S. federal tax credits [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | 35.3
First year of expiration | 2020
U.S. state tax credits [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | 7.8
First year of expiration | 2013
Foreign net operating losses [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | $ 212.4
First year of expiration | 2013

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- Definition Attribute amount. + References No definition available. + Details
Name: | itt_AttributeAmount
Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition First year of expiration. + References No definition available. + Details
Name: | itt_FirstYearOfExpiration
Namespace Prefix: | itt_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

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