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Commitments and Contingencies - Environmental Matters Additional Information (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Qualified Settlement Fund [Member] |  |
Environmental-related assets | $ 8.1 | $ 10.0

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- Definition Recorded amount of the individual components comprising the asset for third-party recoveries related to environmental remediation obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481960/410-30-45-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_EnvironmentalRemediationContingencyAxis=itt_QualifiedSettlementFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |