CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Income Statement [Abstract]
Revenue	$ 797.9	$ 726.2
Cost of revenue	536.0	507.8
Gross profit	261.9	218.4
General and administrative expenses	68.3	60.4
Sales and marketing expenses	42.9	38.4
Research and development expenses	26.4	25.0
Operating income	124.3	94.6
Interest and non-operating expense (income), net	3.5	(0.2)
Income before income tax expense	120.8	94.8
Income tax expense	20.1	19.5
Net income	100.7	75.3
Less: Income attributable to noncontrolling interests	0.7	0.5
Net income attributable to ITT Inc.	$ 100.0	$ 74.8
Earnings per share attributable to ITT Inc.:
Earnings Per Share, Basic, Total	$ 1.21	$ 0.88
Earnings Per Share, Diluted, Total	$ 1.20	$ 0.88
Weighted average common shares – basic	82.6	84.8
Weighted average common shares – diluted	83.0	85.2