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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, 2014
U.S. federal net operating losses [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | $ 1.9 itt_AttributeAmount / us-gaap_IncomeTaxAuthorityAxis = itt_UsNetOperatingLossMember
Deferred Tax Asset Attributes, First Year of Expiration | Dec. 31, 2023
U.S. state net operating losses [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | 1,355.6 itt_AttributeAmount / us-gaap_IncomeTaxAuthorityAxis = itt_StateNetOperatingLossesMember
Deferred Tax Asset Attributes, First Year of Expiration | Dec. 31, 2015
U.S. federal tax credits [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | 23.4 itt_AttributeAmount / us-gaap_IncomeTaxAuthorityAxis = itt_FederalTaxCreditsMember
Deferred Tax Asset Attributes, First Year of Expiration | Dec. 31, 2021
U.S. state tax credits [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | 5.9 itt_AttributeAmount / us-gaap_IncomeTaxAuthorityAxis = itt_StateTaxCreditsMember
Deferred Tax Asset Attributes, First Year of Expiration | Dec. 31, 2027
Foreign net operating losses [Member] |
Operating Loss Carryforwards [Line Items] |
Attribute amount | $ 297.0 itt_AttributeAmount / us-gaap_IncomeTaxAuthorityAxis = itt_ForeignNetOperatingLossMember
Deferred Tax Asset Attributes, First Year of Expiration | Dec. 31, 2015

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- Definition Attribute amount. + References No definition available. + Details
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- Definition Deferred Tax Asset Attributes, First Year of Expiration + References No definition available. + Details
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Balance Type: | na
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- Details
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Period Type: |

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- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=itt_StateNetOperatingLossesMember
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Data Type: | na
Balance Type: |
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- Details
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Period Type: |

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- Details
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