Line of Credit Facility, Aggregate Borrowing Capacity

No definition available.

Name:	itt_LineofCreditFacilityAggregateBorrowingCapacity
Namespace Prefix:	itt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Incremental Borrowing Capacity Maximum

+ References

No definition available.

+ Details

Name:	itt_LineofCreditFacilityIncrementalBorrowingCapacityMaximum
Namespace Prefix:	itt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of a fee associated with the debt instrument, including a commitment fee on unborrowed portions of a lender's total contractual commitment.

+ References

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=itt_A2025CreditAgreementTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DEBT - Subsequent Event - 2025 Debt Agreement (Details) - USD ($) $ in Millions		6 Months Ended
	Jul. 30, 2025	Jun. 28, 2025
2014 Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Aggregate Borrowing Capacity		$ 500.0
Subsequent Event [Member] \| 2014 Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Aggregate Borrowing Capacity	$ 1,100.0
Line of Credit Facility, Incremental Borrowing Capacity Maximum	550.0
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,650.0
Subsequent Event [Member] \| Maximum [Member] \| 2014 Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Debt Instrument, Fee	0.225
Subsequent Event [Member] \| Minimum [Member] \| 2014 Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Debt Instrument, Fee	0.090
2025 Credit Agreement Term Loan
Subsequent Event [Line Items]
Proceeds from Issuance of Debt		$ 750.0