CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income	$ 17.2	$ 149.0	$ 63.8	$ 277.2
Other comprehensive income (loss), net of tax:
Currency translation	(17.1)	4.2	(10.8)	(8.9)
Marketable securities				(0.1)
Total other comprehensive income (loss), net	(15.1)	6.5	(4.7)	(2.1)
Comprehensive income	2.1	155.5	59.1	275.1
Comprehensive income attributable to noncontrolling interest	0.1	7.3	24.1	32.2
Comprehensive income attributable to Valhi stockholders	2.0	148.2	35.0	242.9
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	2.3	2.5	6.8	7.6
OPEB
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	$ (0.3)	$ (0.2)	$ (0.7)	$ (0.7)