CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 04, 2026	Mar. 29, 2025
Income Statement [Abstract]
Revenue	$ 1,211.9	$ 913.0
Cost of revenue	783.1	589.8
Gross profit	428.8	323.2
General and administrative expenses	154.1	85.1
Sales and marketing expenses	73.7	47.9
Research and development expenses	33.1	25.3
Intangible amortization	26.7	14.0
Operating income	141.2	150.9
Interest expense	24.7	9.3
Interest income	(10.4)	(1.7)
Other non-operating income, net	(1.9)	(1.0)
Income before income tax expense	128.8	144.3
Income tax expense	49.3	35.2
Net income	79.5	109.1
Less: Income attributable to noncontrolling interests	1.5	0.7
Net income attributable to ITT Inc.	$ 78.0	$ 108.4
Earnings per share attributable to ITT Inc.:
Basic	$ 0.89	$ 1.33
Diluted	$ 0.89	$ 1.33
Weighted average common shares – basic	87.2	81.3
Weighted average common shares – diluted	87.8	81.7