Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2021

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 2019, 2020, and 2021.

	Years ended December 31,
	2019		2020		2021
	(In millions)
Balance at the beginning of the year	$	103.4	$	99.7	$	98.6
Additions charged to expense, net		.3		.7		1.6
Payments, net		(4.0)		(1.9)		(2.5)
Changes in currency exchange rates and other		—		.1		(.1)
Balance at the end of the year	$	99.7	$	98.6	$	97.6
Amounts recognized in our Consolidated Balance Sheet   at the end of the year:
Current liabilities	$	4.5	$	3.4	$	3.5
Noncurrent liabilities		95.2		95.2		94.1
Total	$	99.7	$	98.6	$	97.6

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

	2019	2020	2021
Europe	46%	46%	46%
North America	34%	36%	37%