Acquisitions - kSARIA (Details) $ in Millions		1 Months Ended	4 Months Ended	12 Months Ended
		Sep. 28, 2024 USD ($)	Dec. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)		Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 12, 2024 USD ($) Employees
Business Acquisition [Line Items]
Goodwill(a)				$ 1,430.1		$ 1,016.3	$ 964.8
Net assets acquired				864.8		$ 79.3	$ 146.9
Goodwill, Measurement Period Adjustment				0.6
kSARIA
Business Acquisition [Line Items]
Receivables				26.7				$ 28.1
Inventory	[1]			48.0				50.6
Plant, property and equipment				9.4				5.8
Goodwill(a)	[1],[3]			244.3	[2]			276.0
Other intangible assets	[1]			185.1				166.0
Other assets				10.3				8.9
Accounts payable and accrued liabilities				(28.5)				(27.9)
Other liabilities	[1]			(30.5)				(42.6)
Contract liabilities				$ (3.0)				(3.0)
Net assets acquired		$ 461.9	$ 461.8
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Receivables			(1.4)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory			(2.6)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment			3.6
Goodwill, Measurement Period Adjustment			(31.7)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles			19.1
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other assets			1.4
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accounts payable and accrued liabilities			(0.6)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liabilities			12.1
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Contract liabilities			0.0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period			$ (0.1)
Business Combination, Contingent Consideration, Liability								$ 4.5
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period		$ 175.0
Entity Number of Employees | Employees								1,000

[1] The purchase price allocation of Svanehøj was updated subsequent to the preliminary allocation in Q1 2024, including an increase to goodwill of $13.7 and a decrease to intangible assets, other liabilities and inventory of $13.4, $1.5 and $1.1, respectively. There was no material impact to the income statement for any period resulting from the change.

[2] Goodwill acquired with kSARIA is primarily attributable to the complementary nature of its product portfolio to ITT’s existing connectors portfolio. Goodwill arising from the acquisition is not expected to be deductible for income tax purposes.

[3] Goodwill related to the acquisition of Svanehøj is primarily attributable to future economic benefits expected from our entrance into the marine sector, our expanded presence in the energy market, and geographic expansion. Goodwill arising from acquisitions is not expected to be deductible for income tax purposes.