CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 3,630.7	$ 3,283.0	$ 2,987.7
Costs of revenue	2,383.4	2,175.7	2,065.4
Gross profit	1,247.3	1,107.3	922.3
General and administrative expenses	296.6	294.5	217.2
Sales and marketing expenses	205.7	174.0	156.9
Research and development expenses	116.3	102.6	96.5
(Gain) loss on sale of businesses	47.8	(8.1)	0.0
Gain (Loss) on Disposition of Property Plant Equipment	0.5	(0.1)	(16.3)
Operating income	676.0	528.2	468.0
Interest expense	36.6	19.2	10.9
Interest income	6.6	8.8	4.5
Other non-operating income, net	(1.6)	(1.7)	(0.2)
Income from continuing operations before income tax	647.6	519.5	461.8
Income tax expense	125.8	104.8	91.1
Income from continuing operations	521.8	414.7	370.7
Loss from discontinued operations, net of tax benefit of $—, $0.3, and $0.4, respectively	(0.1)	(0.9)	(1.3)
Net income	521.7	413.8	369.4
Less: Income attributable to noncontrolling interests	3.4	3.3	2.4
Net income attributable to ITT Inc.	518.3	410.5	367.0
Amounts attributable to ITT Inc.:
Income from continuing operations, net of tax	518.4	411.4	368.3
Loss from discontinued operations, net of tax	(0.1)	(0.9)	(1.3)
Net income attributable to ITT Inc.	$ 518.3	$ 410.5	$ 367.0
Basic:
Continuing operations	$ 6.34	$ 5.00	$ 4.42
Discontinued operations	0	(0.01)	(0.02)
Net income	6.34	4.99	4.40
Diluted:
Continuing operations	6.30	4.97	4.40
Discontinued operations	0	(0.01)	(0.02)
Net income	$ 6.30	$ 4.96	$ 4.38
Weighted average common shares – basic	81.8	82.3	83.4
Weighted average common shares – diluted	82.3	82.7	83.7