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Revenue (Tables) | 12 Months Ended
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Dec. 31, 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):
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 (a) |  |  | 2016 (a) |
Packaging |  | $ | 5,938.5 |  |  | $ | 5,312.3 |  |  | $ | 4,584.8 |
Paper |  |  | 1,002.0 |  |  |  | 1,051.8 |  |  |  | 1,093.9 |
Corporate and Other |  |  | 74.1 |  |  |  | 80.8 |  |  |  | 100.3 |
Total revenue |  | $ | 7,014.6 |  |  | $ | 6,444.9 |  |  | $ | 5,779.0 |
(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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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