CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenue	$ 711.9	$ 680.6	$ 2,127.3	$ 2,066.7
Costs of revenue	480.6	454.1	1,445.2	1,390.0
Gross profit	231.3	226.5	682.1	676.7
General and administrative expenses	69.5	68.0	187.5	196.6
Sales and marketing expenses	41.6	40.8	124.5	127.7
Research and development expenses	23.8	24.2	73.1	74.7
Gain on sale of long-lived assets	(0.1)	40.0	0.3	40.5
Asbestos-related benefit, net	(56.2)	(4.3)	(31.8)	(10.5)
Operating income	152.5	137.8	329.1	328.7
Interest and non-operating (income) expenses, net	(0.4)	0.7	(1.3)	4.0
Income from continuing operations before income tax expense	152.9	137.1	330.4	324.7
Income tax expense	34.1	25.9	73.1	42.4
Income from continuing operations	118.8	111.2	257.3	282.3
Loss from discontinued operations, net of tax	(0.1)	(0.1)	(0.2)	0.0
Net income	118.7	111.1	257.1	282.3
Less: Income attributable to noncontrolling interests	0.1	0.2	0.4	0.5
Net income attributable to ITT Inc.	118.6	110.9	256.7	281.8
Amounts attributable to ITT Inc.:
Income from continuing operations, net of tax	118.7	111.0	256.9	281.8
Loss from discontinued operations, net of tax	(0.1)	(0.1)	(0.2)	0.0
Net income attributable to ITT Inc.	$ 118.6	$ 110.9	$ 256.7	$ 281.8
Basic:
Continuing operations	$ 1.35	$ 1.27	$ 2.93	$ 3.21
Net income	1.35	1.27	2.93	3.21
Diluted:
Continuing operations	1.34	1.25	2.90	3.18
Net income	$ 1.34	$ 1.25	$ 2.90	$ 3.18
Weighted average common shares – basic	87.8	87.6	87.7	87.7
Weighted average common shares – diluted	88.7	88.7	88.6	88.7