Noncontrolling Interest in Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2018

Noncontrolling Interest [Abstract]

Noncontrolling Interest in Net Assets of Subsidiaries

	December 31, 2017		June 30, 2018
	(In millions)
Noncontrolling interest in net assets:
Kronos Worldwide	$	204.9	$	224.2
NL Industries		71.1		66.0
CompX International		17.8		18.7
BMI		26.0		27.6
LandWell		22.5		25.2
Total	$	342.3	$	361.7

Schedule of Noncontrolling Interest in Net Income of Subsidiaries

	Six months ended June 30,
	2017		2018
	(In millions)
Noncontrolling interest in net income (loss) of subsidiaries:
Kronos Worldwide	$	45.6	$	29.0
NL Industries		8.4		(4.8	)
CompX International		.9		1.1
BMI		.2		.7
LandWell		.3		1.2
Total	$	55.4	$	27.2