CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income	$ 28.4	$ 107.8
Other comprehensive income (loss), net of tax:
Currency translation	(0.3)	9.8
Marketable securities		(0.1)
Total other comprehensive income, net	1.8	12.0
Comprehensive income	30.2	119.8
Comprehensive income attributable to noncontrolling interest	10.7	21.7
Comprehensive income attributable to Valhi stockholders	19.5	98.1
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	2.3	2.6
OPEB
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	$ (0.2)	$ (0.3)