Number of Employees at Entity to be Acquired

No definition available.

Name:	itt_NumberofEmployeesatEntitytobeAcquired
Namespace Prefix:	itt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

+ References

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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479328/805-10-50-2

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Date when the acquirer obtains control of the acquiree, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Paragraph 6
-SubTopic 10
-Topic 805
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479405/805-10-25-6

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479907/805-20-50-5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Total revenue reported by the acquired entity for its previous full fiscal year before the business acquisition.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionRevenueReportedByAcquiredEntityForLastAnnualPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
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Period Type:	duration

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Period Type:

- Details

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Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=itt_ClippardInstrumentLaboratoryMember
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ACQUISITIONS Acquisitions Textuals (Details) $ in Millions			3 Months Ended	9 Months Ended
ACQUISITIONS Acquisitions Textuals (Details) $ in Millions	May 02, 2023 USD ($)	Apr. 04, 2022 USD ($) Employees	Oct. 01, 2022 USD ($)	Sep. 30, 2023 USD ($)	Oct. 01, 2022 USD ($)
Business Acquisition [Line Items]
Acquisitions, net of cash acquired				$ 79.3	$ 146.9
Micro-Mode
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	May 02, 2023
Acquisitions, net of cash acquired	$ 79.3
Revenue of Acquired Entity for Last Annual Period	$ 26.0
Business Acquisition, Description of Acquired Entity	completed the acquisition of Micro-Mode Products, Inc. (Micro-Mode)
Habonim
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition		Apr. 04, 2022
Acquisitions, net of cash acquired		$ 139.9
Business Acquisition, Description of Acquired Entity		completed the acquisition of 100% of the privately held stock of Habonim
Number of Employees at Entity to be Acquired \| Employees		200
Clippard Instrument Laboratory
Business Acquisition [Line Items]
Acquisitions, net of cash acquired			$ 7.0