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Discontinued Operations - Additional Information (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 | Oct. 31, 2011 Contract
Income from discontinued operations for the quarter | $ 12.2 | $ 138.0 | $ 5.3 | $ 431.8 |
Number of Contracts |  |  |  |  | 425

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- Definition Income (loss) from discontinued operations including gain (loss) net of tax. + References No definition available. + Details
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Namespace Prefix: | itt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Number Of Contracts + References No definition available. + Details
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Namespace Prefix: | itt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant