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Other Income (Expense), Net (Tables) | 6 Months Ended
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Jun. 30, 2019
Other Income And Expenses [Abstract] |
Components of Other Income (Expense), Net | The components of other income (expense), net, were as follows (dollars in millions):
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Asset disposals and write-offs |  | $ | (4.5 | ) |  | $ | (4.1 | ) |  | $ | (8.8 | ) |  | $ | (9.2 | )
Wallula mill restructuring (a) |  |  | — |  |  |  | (7.2 | ) |  |  | (0.4 | ) |  |  | (7.9 | )
Facilities closure and other costs (b) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (0.1 | )
Other |  |  | 0.7 |  |  |  | (2.0 | ) |  |  | (0.6 | ) |  |  | (4.4 | )
Total |  | $ | (3.8 | ) |  | $ | (13.3 | ) |  | $ | (9.8 | ) |  | $ | (21.6 | )
(a) | Includes charges related to the discontinuation of production of uncoated free sheet and coated one-side grades at the Wallula, Washington mill in the second quarter of 2018 and the conversion of the No. 3 paper machine to a high-performance 100% virgin kraft linerboard machine.
(b) | Includes charges consisting of closure costs related to corrugated products facilities.

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- Definition Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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