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SEGMENT INFORMATION (Details) $ in Millions | 9 Months Ended
--- | ---
Oct. 01, 2022 Segment | Oct. 02, 2021 USD ($)
Number of Reportable Segments | Segment | 3 |
Pre-tax Gain on Divestiture of Asbestos Liability | $ |  | $ 88.8

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- Definition Pre-tax Gain on Divestiture of Asbestos Liability + 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 segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration