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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2022
Supplemental Cash Flow Elements [Abstract] |
Schedule of Noncash Investing and Financing Activities | Noncash investing and financing activities are as follows:
|  | Six Months Ended |
|  | June 30, |
|  | 2022 |  |  | 2021 |
|  | (Dollars in Millions) |
Noncash investing and financing activities: |  |  |  |  |  |
Right-of-use assets obtained in exchange for new finance lease liabilities |  | $ | 7.0 |  |  | $ | 158.8 |
Right-of-use assets obtained in exchange for new operating lease liabilities |  | $ | 13.0 |  |  | $ | 13.2 |
Accrued liabilities for purchases of property, plant and equipment |  | $ | 27.3 |  |  | $ | 29.5 |
Remeasurement of operating lease right-of-use assets |  | $ | (3.5 | ) |  | $ | (6.3 | )
Remeasurement of finance lease right-of-use assets |  | $ | (6.4 | ) |  | $ | — |
Supplemental Disclosures of Cash Flow Information | Supplemental disclosures of cash flow information are as follows:
|  | Six Months Ended |
|  | June 30, |
|  | 2022 |  |  | 2021 |
|  | (Dollars in Millions) |
Cash paid for interest, net of capitalized amount |  | $ | 84.3 |  |  | $ | 53.6 |
Cash paid for income taxes, net of refunds |  | $ | 42.9 |  |  | $ | 56.9 |

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