Noncontrolling Interest in Subsidiaries (Tables)

9 Months Ended

Sep. 30, 2023

Noncontrolling Interest [Abstract]

Noncontrolling Interest in Net Assets of Subsidiaries

	December 31,		September 30,
	2022		2023
	(In millions)
Noncontrolling interest in net assets:
Kronos Worldwide	$	239.3	$	213.7
NL Industries		79.0		76.0
CompX International		20.6		21.5
BMI		6.9		13.1
LandWell		2.4		9.0
Total	$	348.2	$	333.3

Schedule of Noncontrolling interest in net income (loss) of subsidiaries

	Nine months ended September 30,
	2022		2023
	(In millions)
Noncontrolling interest in net income (loss) of subsidiaries:
Kronos Worldwide	$	23.9	$	(8.5)
NL Industries		6.8		(1.7)
CompX International		2.0		2.0
BMI		1.6		6.3
LandWell		12.7		10.1
Total	$	47.0	$	8.2