Income Taxes (Tables)

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

Component of Income Taxes

	Three months ended
	March 31,
	2019			2020
	(In millions)
Expected tax expense (benefit), at U.S. federal    statutory income tax rate of 21%	$	3.8		$	(.2	)
Rate differences on equity in earnings of Kronos		(1.4	)		(3.2	)
U.S. state income taxes and other, net		.2			.1
Income tax expense (benefit)	$	2.6		$	(3.3	)
Comprehensive provision (benefit) for income taxes    allocable to:
Net income (loss)	$	2.6		$	(3.3	)
Additional paid-in capital		-			(.1	)
Other comprehensive income (loss):
Currency translation		-			(2.7	)
Pension plans		.2			.3
Total	$	2.8		$	(5.8	)