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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
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 2018, 2019, and 2020.
| Years ended December 31, |
| 2018 |  |  | 2019 |  |  | 2020 |
| (In millions) |
Balance at the beginning of the year | $ | 117.5 |  |  | $ | 103.4 |  |  | $ | 99.7 |
Additions charged to expense, net |  | 3.1 |  |  |  | .3 |  |  |  | .7 |
Payments, net |  | (17.2 | ) |  |  | (4.0 | ) |  |  | (1.9 | )
Changes in currency exchange rates and other |  | - |  |  |  | - |  |  |  | .1 |
Balance at the end of the year | $ | 103.4 |  |  | $ | 99.7 |  |  | $ | 98.6 |
Amounts recognized in our Consolidated Balance Sheet at the end of the year: |  |  |  |  |  |  |  |  |  |  |
Current liabilities | $ | 6.5 |  |  | $ | 4.5 |  |  | $ | 3.4 |
Noncurrent liabilities |  | 96.9 |  |  |  | 95.2 |  |  |  | 95.2 |
Total | $ | 103.4 |  |  | $ | 99.7 |  |  | $ | 98.6 |
Approximate Percentage of TiO2 Sales by Volume for Segments | The table below shows the approximate percentage of our Chemicals Segment’s TiO
| 2018 |  |  | 2019 |  |  | 2020 |  |
Europe |  | 44 |  | % |  | 46 |  | % |  | 46 |  | %
North America |  | 37 |  | % |  | 34 |  | % |  | 36 |  | %

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