CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues and other income:
Net sales	$ 1,897.5	$ 1,820.1	$ 1,879.4
Other income, net	40.9	69.2	25.2
Total revenues and other income	1,938.4	1,889.3	1,904.6
Cost and expenses:
Cost of sales	1,462.9	1,210.9	1,266.5
Selling, general and administrative	294.2	310.0	262.6
Litigation settlement expense, net	19.3	62.0
Loss on prepayment of debt			7.1
Other components of net periodic pension expense	16.5	14.5	17.7
Interest	40.8	55.7	58.9
Total costs and expenses	1,833.7	1,653.1	1,612.8
Income from continuing operations before income taxes	104.7	236.2	291.8
Income tax expense (benefit)	26.5	(30.7)	(120.0)
Net income from continuing operations	78.2	266.9	411.8
Income (loss) from discontinued operations, net of tax		34.1	(109.2)
Net income	78.2	301.0	302.6
Noncontrolling interest in net income of subsidiaries	29.0	38.8	95.1
Net income attributable to Valhi stockholders	49.2	262.2	207.5
Amounts attributable to Valhi stockholders:
Income from continuing operations	49.2	228.1	316.7
Income (loss) from discontinued operations		34.1	(109.2)
Net income attributable to Valhi stockholders	$ 49.2	$ 262.2	$ 207.5
Basic and diluted net income (loss) per share:
Income from continuing operations	$ 0.14	$ 0.67	$ 0.93
Income (loss) from discontinued operations		0.10	(0.32)
Net income per basic and diluted share	$ 0.14	$ 0.77	$ 0.61
Basic and diluted weighted average shares outstanding	342.1	342.0	342.0