CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 7.8	$ 22.8
Other comprehensive income (loss), net of tax:
Currency translation	3.7	15.5
Defined benefit pension plans	0.2	0.6
Other		(0.1)
Total other comprehensive income, net	3.9	16.0
Comprehensive income	11.7	38.8
Comprehensive income attributable to noncontrolling interest	6.8	10.1
Comprehensive income attributable to Valhi stockholders	$ 4.9	$ 28.7