Noncontrolling Interest in Subsidiaries (Tables)

9 Months Ended

Sep. 30, 2021

Noncontrolling Interest [Abstract]

Noncontrolling Interest in Net Assets of Subsidiaries

	December 31,		September 30,
	2020		2021
	(In millions)
Noncontrolling interest in net assets:
Kronos Worldwide	$	212.3	$	217.2
NL Industries		67.1		72.3
CompX International		23.5		22.5
BMI		14.7		6.8
LandWell		6.8		(5.6	)
Total	$	324.4	$	313.2

Schedule of Noncontrolling Interest in Net Income of Subsidiaries

	Nine months ended September 30,
	2020		2021
	(In millions)
Noncontrolling interest in net income of subsidiaries:
Kronos Worldwide	$	10.2	$	15.8
NL Industries		1.8		6.2
CompX International		1.1		1.8
BMI		4.4		4.0
LandWell		4.9		6.3
Total	$	22.4	$	34.1