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Other Financial Statement Disclosures (Tables) | 3 Months Ended
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Mar. 31, 2019
Other Financial Statement Disclosures [Abstract] |
Components of Receivables - Trade and Other | The following table sets forth the components of Receivables - trade and other (in millions):
| March 31, 2019 |  | December 31, 2018
Trade | $ | 184.3 |  |  | $ | 231.7 |
Income tax | 15.8 |  |  | 12.0 |
Other | 7.3 |  |  | 7.5 |
Total Receivables - trade and other | $ | 207.4 |  |  | $ | 251.2 |
Schedule of Accrued Liabilities | The following table sets forth the components of Accrued liabilities (in millions):
| March 31, 2019 |  | December 31, 2018
Pension and other postretirement benefits | $ | 15.8 |  |  | $ | 16.8 |
Compensation and related employee costs | 37.3 |  |  | 45.0 |
Interest | 39.6 |  |  | 34.0 |
Income taxes | 6.2 |  |  | 7.1 |
Current lease liability | 3.5 |  |  | — |
Other | 13.3 |  |  | 10.5 |
Total Accrued liabilities | $ | 115.7 |  |  | $ | 113.4 |
Schedule of Long-term Debt | Long-term debt consisted of the following (in millions):
| March 31, 2019 |  | December 31, 2018
7.875% Senior Notes, due August 2019 ($201.4 million principal amount; 8.0% effective rate) | $ | 201.3 |  |  | $ | 201.2 |
4.875% Senior Notes, due June 2022 ($620.8 million principal amount; 4.7% effective rate) | 623.5 |  |  | 623.8 |
4.75% Senior Notes, due January 2024 ($398.1 million principal amount; 4.8% effective rate) | 396.4 |  |  | 396.3 |
7.375% Senior Notes, due June 2025 ($500 million principal amount; 7.4% effective rate) | 497.9 |  |  | 497.8 |
5.4% Senior Notes, due December 2042 ($400 million principal amount; 5.4% effective rate) | 395.4 |  |  | 395.3 |
5.85% Senior Notes, due January 2044 ($400 million principal amount; 5.9% effective rate) | 396.5 |  |  | 396.5 |
Total carrying value | $ | 2,511.0 |  |  | $ | 2,510.9 |
Current portion (1) | 201.3 |  |  | 201.2 |
Carrying value, less current portion | $ | 2,309.7 |  |  | $ | 2,309.7 |
(1) Current portion of long-term debt at March 31, 2019 and December 31, 2018 included the 7.875% Senior Notes due in August 2019.

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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