CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net income (loss)	$ 9.0	$ (13.3)	$ (20.7)	$ (135.4)
Other comprehensive income (loss), net of tax:
Currency translation	7.5	(13.5)	15.3	(66.4)
Marketable securities	1.4	(5.4)	1.9	(6.8)
Interest rate swap	0.6	(3.1)	(2.4)	(3.1)
Total other comprehensive income (loss), net	11.8	(19.4)	21.7	(67.8)
Comprehensive income (loss)	20.8	(32.7)	1.0	(203.2)
Comprehensive income (loss) attributable to noncontrolling interest	10.3	(11.0)	11.7	(54.8)
Comprehensive income (loss) attributable to Valhi stockholders	10.5	(21.7)	(10.7)	(148.4)
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	2.6	2.9	7.8	9.4
OPEB
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	$ (0.3)	$ (0.3)	$ (0.9)	$ (0.9)