CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Revenue	$ 719.9	$ 696.8	$ 1,415.4	$ 1,386.1
Costs of revenue	487.9	470.8	964.6	935.9
Gross profit	232.0	226.0	450.8	450.2
General and administrative expenses	65.7	63.0	117.6	128.1
Sales and marketing expenses	42.7	43.4	82.9	86.9
Research and development expenses	25.8	25.8	49.3	50.5
Asbestos-related costs (benefit), net	11.8	13.5	24.4	(6.2)
Operating income	86.0	80.3	176.6	190.9
Interest and non-operating (income) expenses, net	(0.4)	1.5	(0.9)	3.3
Income from continuing operations before income tax expense	86.4	78.8	177.5	187.6
Income tax expense	19.3	8.9	39.0	16.5
Income from continuing operations	67.1	69.9	138.5	171.1
(Loss) income from discontinued operations, net of tax	(0.1)	0.0	(0.1)	0.1
Net income	67.0	69.9	138.4	171.2
Less: Income attributable to noncontrolling interests	0.2	0.2	0.3	0.3
Net income attributable to ITT Inc.	66.8	69.7	138.1	170.9
Amounts attributable to ITT Inc.:
Income from continuing operations, net of tax	66.9	69.7	138.2	170.8
(Loss) income from discontinued operations, net of tax	(0.1)	0.0	(0.1)	0.1
Net income attributable to ITT Inc.	$ 66.8	$ 69.7	$ 138.1	$ 170.9
Basic:
Continuing operations	$ 0.76	$ 0.80	$ 1.58	$ 1.95
Net income	0.76	0.80	1.58	1.95
Diluted:
Continuing operations	0.75	0.79	1.56	1.93
Net income	$ 0.75	$ 0.79	$ 1.56	$ 1.93
Weighted average common shares – basic	87.8	87.5	87.7	87.8
Weighted average common shares – diluted	88.7	88.4	88.6	88.7