CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 7.5	$ 29.7	$ 30.3	$ 43.3
Other comprehensive income (loss), net of tax:
Currency translation	12.7	1.6	28.2	(16.7)
Defined benefit pension plans	0.6	0.7	1.2	1.4
Other		(0.1)	(0.1)	(0.2)
Total other comprehensive income (loss), net	13.3	2.2	29.3	(15.5)
Comprehensive income	20.8	31.9	59.6	27.8
Comprehensive income attributable to noncontrolling interest	10.0	10.4	20.1	11.6
Comprehensive income attributable to Valhi stockholders	$ 10.8	$ 21.5	$ 39.5	$ 16.2