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Revenue (Tables) | 6 Months Ended
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Jun. 30, 2018
Revenue From Contract With Customer [Abstract] |
Summary of Revenues Disaggregated by Product Line | The following table presents our revenues disaggregated by product line (dollars in millions):
|  | Three Months Ended June 30 |  |  | Six Months Ended June 30, |
|  | 2018 |  |  | 2017 (a) |  |  | 2018 |  |  | 2017 (a) |
Packaging |  | $ | 1,496.2 |  |  | $ | 1,311.5 |  |  | $ | 2,899.1 |  |  | $ | 2,568.4 |
Paper |  |  | 250.8 |  |  |  | 253.7 |  |  |  | 520.2 |  |  |  | 512.9 |
Corporate and other |  |  | 20.5 |  |  |  | 18.8 |  |  |  | 38.8 |  |  |  | 39.2 |
Total revenue |  | $ | 1,767.5 |  |  | $ | 1,584.0 |  |  | $ | 3,458.1 |  |  | $ | 3,120.5 |
(a) | Prior periods have not been adjusted under the modified retrospective method for Topic 606.

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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