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Company Transformation - Roll Forward of Transformational Accrual (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
Components Of Transformation Costs [Line Items] |  |  |  |
Transformation accrual - December 31, 2011 |  |  | $ 33.9 |
Charges for actions during the period | 2.2 | 132.8 | 19.7 | 279.4
Cash payments |  |  | (44.2) |
Transformation accrual - September 30, 2012 | 9.4 |  | 9.4 |
Continuing Operations [Member] |  |  |  |
Components Of Transformation Costs [Line Items] |  |  |  |
Charges for actions during the period | 2.6 | 19.8 | 11.9 | 84.2
Discontinued Operations [Member] |  |  |  |
Components Of Transformation Costs [Line Items] |  |  |  |
Charges for actions during the period | $ (0.4) | $ 113.0 | $ 7.8 | $ 195.2

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- Definition Cash payment of transformation cost. + References No definition available. + Details
Name: | itt_CashPaymentOfTransformationCost
Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | itt_ComponentsOfTransformationCostsLineItems
Namespace Prefix: | itt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Balance of spin-off related accruals associated with continuing operations. + References No definition available. + Details
Name: | itt_TransformationAccrual
Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Transformation costs before income tax expense. + References No definition available. + Details
Name: | itt_TransformationCostsBeforeIncomeTaxExpense
Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration