CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income (loss)	$ (13.3)	$ 37.5	$ (135.4)	$ 65.8
Other comprehensive income (loss), net of tax:
Currency translation	(13.5)	(48.0)	(66.4)	(55.2)
Interest rate swap	(3.1)		(3.1)
Marketable securities	(5.4)	(0.1)	(6.8)	(21.5)
Total other comprehensive income (loss), net	(19.4)	(46.4)	(67.8)	(71.6)
Comprehensive loss	(32.7)	(8.9)	(203.2)	(5.8)
Comprehensive loss attributable to noncontrolling interest	(11.0)	(1.6)	(54.8)	(11.0)
Comprehensive income (loss) attributable to Valhi stockholders	(21.7)	(7.3)	(148.4)	5.2
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	2.9	2.1	9.4	6.2
OPEB
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	$ (0.3)	$ (0.4)	$ (0.9)	$ (1.1)