Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2022

Commitments And Contingencies Disclosure [Abstract]

Change in Accrued Environmental Remediation and Related Costs

The table below presents a summary of the activity in our accrued environmental costs during 2020, 2021, and 2022.

	Years ended December 31,
	2020		2021		2022
	(In millions)
Balance at the beginning of the year	$	99.7	$	98.6	$	97.6
Additions charged to expense, net		.7		1.6		1.7
Payments, net		(1.9)		(2.5)		(2.0)
Changes in currency exchange rates and other		.1		(.1)		—
Balance at the end of the year	$	98.6	$	97.6	$	97.3
Amounts recognized in the Consolidated Balance Sheet at the   end of the year:
Current liabilities	$	3.4	$	3.5	$	3.8
Noncurrent liabilities		95.2		94.1		93.5
Total	$	98.6	$	97.6	$	97.3

Approximate Percentage of TiO2 Sales by Volume for Segments

Our Chemicals Segment did not have sales to a single customer comprising 10% or more of its net sales in 2021. The table below shows the approximate percentage of our Chemicals Segment’s TiO

	2020	2021	2022
Europe	46%	46%	45%
North America	36%	37%	39%