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Goodwill and Identifiable Intangible Assets, Net (Tables) | 12 Months Ended
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Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Goodwill Balances by Segment Reporting Structure | The following table shows our goodwill balances by reportable segment:
(In millions) |  | Food Care |  | Product Care |  | Total
Gross Carrying Value at December 31, 2016 |  | $ | 560.3 |  |  | $ | 1,513.0 |  |  | $ | 2,073.3 |
Accumulated impairment |  | (49.5 | ) |  | (140.9 | ) |  | (190.4 | )
Carrying Value at December 31, 2016 |  | $ | 510.8 |  |  | $ | 1,372.1 |  |  | $ | 1,882.9 |
Acquisition and divestiture |  | 10.1 |  |  | 39.3 |  |  | 49.4 |
Currency translation |  | 6.0 |  |  | 1.5 |  |  | 7.5 |
Gross Carrying Value at December 31, 2017 |  | $ | 576.5 |  |  | $ | 1,554.1 |  |  | $ | 2,130.6 |
Accumulated impairment |  | (49.6 | ) |  | (141.2 | ) |  | (190.8 | )
Carrying Value at December 31, 2017 |  | $ | 526.9 |  |  | $ | 1,412.9 |  |  | $ | 1,939.8 |
Acquisition, purchase price and other adjustments |  | (0.6 | ) |  | 18.2 |  |  | 17.6 |
Currency translation |  | (6.6 | ) |  | (3.2 | ) |  | (9.8 | )
Gross Carrying Value at December 31, 2018 |  | $ | 568.9 |  |  | $ | 1,568.9 |  |  | $ | 2,137.8 |
Accumulated impairment |  | (49.2 | ) |  | (141.0 | ) |  | (190.2 | )
Carrying Value at December 31, 2018 |  | $ | 519.7 |  |  | $ | 1,427.9 |  |  | $ | 1,947.6 |
Summary of Identifiable Intangible Assets with Definite and Indefinite Useful Lives | The following tables summarize our identifiable intangible assets, net with definite and indefinite useful lives:
|  | December 31, 2018 |  | December 31, 2017
(In millions) |  | Gross Carrying Value |  | Accumulated Amortization |  | Net (1) |  | Gross Carrying Value |  | Accumulated Amortization |  | Net
Customer relationships |  | $ | 72.4 |  |  | $ | (22.3 | ) |  | $ | 50.1 |  |  | $ | 59.7 |  |  | $ | (19.7 | ) |  | $ | 40.0 |
Trademarks and tradenames |  | 15.1 |  |  | (1.6 | ) |  | 13.5 |  |  | 11.6 |  |  | (0.5 | ) |  | 11.1 |
Capitalized software |  | 62.2 |  |  | (49.8 | ) |  | 12.4 |  |  | 50.6 |  |  | (40.0 | ) |  | 10.6 |
Technology |  | 37.2 |  |  | (23.5 | ) |  | 13.7 |  |  | 39.2 |  |  | (27.5 | ) |  | 11.7 |
Contracts |  | 13.2 |  |  | (10.1 | ) |  | 3.1 |  |  | 10.9 |  |  | (9.6 | ) |  | 1.3 |
Total intangible assets with definite lives |  | 200.1 |  |  | (107.3 | ) |  | 92.8 |  |  | 172.0 |  |  | (97.3 | ) |  | 74.7 |
Trademarks and tradenames with indefinite lives |  | 8.9 |  |  | — |  |  | 8.9 |  |  | 8.9 |  |  | — |  |  | 8.9 |
Total identifiable intangible assets, net |  | $ | 209.0 |  |  | $ | (107.3 | ) |  | $ | 101.7 |  |  | $ | 180.9 |  |  | $ | (97.3 | ) |  | $ | 83.6 |
(1) | As of December 31, 2018, intangible assets increased due to the AFP acquisition. See Note 4, "Discontinued Operations, Divestitures and Acquisitions," to the Notes to Consolidated Financial Statements for additional information related to the AFP acquisition.
Remaining Estimated Future Amortization Expense | The following table shows the remaining estimated future amortization expense at December 31, 2018.
Year |  | Amount (in millions)
2019 |  | $ | 14.2 |
2020 |  | 12.0 |
2021 |  | 9.0 |
2022 |  | 7.6 |
Thereafter |  | 50.0 |
Total |  | $ | 92.8 |
Remaining Weighted Average Useful Life of Definite Lived Intangible Assets | The following table shows the remaining weighted average useful life of our definite lived intangible assets as of December 31, 2018.
| Remaining weighted average useful lives
Customer relationships | 13.3
Trademarks and trade names | 11.1
Technology | 6.3
Contracts | 8.2
Total identifiable intangible assets, net with definite lives | 10.8

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