CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues and other income:
Net sales	$ 634.6	$ 525.3	$ 1,263.6	$ 1,034.3
Other income, net	15.0	7.8	15.0	14.8
Total revenues and other income	649.6	533.1	1,278.6	1,049.1
Cost and expenses:
Cost of sales	487.9	400.7	946.2	800.4
Selling, general and administrative	79.0	78.5	156.2	149.4
Fixed asset impairment	16.0		16.0
Other components of net periodic pension and OPEB expense	3.3	4.6	6.6	8.9
Interest	7.0	8.7	13.9	17.3
Total costs and expenses	593.2	492.5	1,138.9	976.0
Income before income taxes	56.4	40.6	139.7	73.1
Income tax expense	14.0	10.3	33.9	18.3
Net income	42.4	30.3	105.8	54.8
Noncontrolling interest in net income of subsidiaries	14.4	8.9	32.4	18.6
Net income attributable to Valhi stockholders	$ 28.0	$ 21.4	$ 73.4	$ 36.2
Amounts attributable to Valhi stockholders:
Net income per basic share	$ 0.98	$ 0.75	$ 2.57	$ 1.27
Net income per diluted share	$ 0.98	$ 0.75	$ 2.57	$ 1.27
Weighted average shares outstanding - basic	28.5	28.5	28.5	28.5
Weighted average shares outstanding - diluted	28.5	28.5	28.5	28.5