CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 78.2	$ 301.0	$ 302.6
Other comprehensive income (loss), net of tax:
Currency translation	(1.8)	(29.4)	47.9
Interest rate swap			1.5
Marketable securities			5.0
Total other comprehensive income (loss), net	(19.9)	(37.1)	64.6
Comprehensive income	58.3	263.9	367.2
Comprehensive income attributable to noncontrolling interest	23.5	29.0	116.8
Comprehensive income attributable to Valhi stockholders	34.8	234.9	250.4
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	(17.3)	(6.8)	11.0
OPEB
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	$ (0.8)	$ (0.9)	$ (0.8)