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Supplemental Cash Flow Information (Tables) | 3 Months Ended
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Mar. 31, 2021
Supplemental Cash Flow Elements [Abstract] |
Schedule Of Other Significant Noncash Transactions | Noncash investing and financing activities are as follows:
|  | March 31, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Noncash investing and financing activities: |  |  |  |  |  |  |  |
Right-of-use assets obtained in exchange for new finance lease liabilities |  | $ | 115.1 |  |  | $ | — |
Accrued liabilities for purchases of property, plant and equipment |  | $ | 28.7 |  |  | $ | 21.4 |
Right-of-use assets obtained in exchange for new operating lease liabilities |  | $ | 6.0 |  |  | $ | 12.7 |
Accrued proceeds from company-owned life insurance benefits |  | $ | — |  |  | $ | 0.8 |
Remeasurement of operating lease right-of-use assets |  | $ | (6.2 | ) |  | $ | — |
For the three months ended March 31, 2021, the right-of-use assets obtained in exchange for new finance lease liabilities balance primarily consisted of the lease for the new corporate headquarters.
Supplemental Disclosures of Cash Flow Information | Supplemental disclosures of cash flow information are as follows:
|  | March 31, |
|  | 2021 |  |  | 2020 |
|  | (Dollars in Millions) |
Cash paid for interest, net of capitalized amount |  | $ | 14.8 |  |  | $ | 11.9 |
Cash paid for income taxes, net of refunds |  | $ | — |  |  | $ | 1.4 |

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