CONSOLIDATED CONDENSED INCOME STATEMENTS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenue	$ 581.7	$ 601.9	$ 1,817.0	$ 1,818.8
Costs of revenue	397.8	407.0	1,232.2	1,211.0
Gross profit	183.9	194.9	584.8	607.8
General and administrative expenses	59.2	60.2	202.2	186.8
Sales and marketing expenses	39.4	43.1	128.7	139.2
Research and development expenses	18.6	18.0	58.9	55.2
Asbestos-related benefit, net	(68.1)	(30.3)	(40.3)	(99.7)
Operating income	134.8	103.9	235.3	326.3
Interest and non-operating expenses (income), net	0.3	(4.0)	1.5	(2.5)
Income from continuing operations before income tax expense	134.5	107.9	233.8	328.8
Income tax expense	46.1	11.4	75.3	53.0
Income from continuing operations	88.4	96.5	158.5	275.8
Income from discontinued operations, net of tax	1.8	34.2	2.0	39.3
Net income	90.2	130.7	160.5	315.1
Less: Income attributable to noncontrolling interests	0.1	0.0	0.2	0.0
Net income attributable to ITT Inc.	90.1	130.7	160.3	315.1
Amounts attributable to ITT Inc.:
Income from continuing operations, net of tax	88.3	96.5	158.3	275.8
Income from discontinued operations, net of tax	1.8	34.2	2.0	39.3
Net income attributable to ITT Inc.	$ 90.1	$ 130.7	$ 160.3	$ 315.1
Basic:
Continuing operations	$ 0.99	$ 1.08	$ 1.77	$ 3.07
Discontinued operations	0.02	0.38	0.02	0.44
Net income	1.01	1.46	1.79	3.51
Diluted:
Continuing operations	0.98	1.07	1.76	3.04
Discontinued operations	0.02	0.38	0.02	0.43
Net income	$ 1.00	$ 1.45	$ 1.78	$ 3.47
Weighted average common shares – basic	89.2	89.4	89.5	89.9
Weighted average common shares – diluted	89.7	90.3	90.2	90.8
Cash dividends declared per common share	$ 0.124	$ 0.1183	$ 0.372	$ 0.3549