CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income (loss)	$ 37.5	$ (40.9)	$ 65.8	$ (137.7)
Other comprehensive income (loss), net of tax:
Currency translation	(48.0)	21.7	(55.2)	(0.4)
Marketable securities	(0.1)	13.0	(21.5)	15.0
Total other comprehensive income (loss), net	(46.4)	37.1	(71.6)	21.8
Comprehensive loss	(8.9)	(3.8)	(5.8)	(115.9)
Comprehensive income (loss) attributable to noncontrolling interest	(1.6)	10.7	(11.0)	(8.4)
Comprehensive income (loss) attributable to Valhi stockholders	(7.3)	(14.5)	5.2	(107.5)
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	2.1	2.7	6.2	8.1
OPEB
Other comprehensive income (loss), net of tax:
Pension and other postretirement benefit plan	$ (0.4)	$ (0.3)	$ (1.1)	$ (0.9)