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v3.19.3.a.u2

Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2019
Goodwill and Intangible Assets, Net |
Schedule of goodwill | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
($ in millions) |  | ​ Beverage Packaging, North & Central America |  | ​ Beverage Packaging, South America |  | ​ Beverage Packaging, Europe |  | ​ Aerospace |  | Other |  | Total
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at December 31, 2017 | ​ | $ | 1,275 | ​ | $ | 1,299 | ​ | $ | 1,531 | ​ | $ | 40 | ​ | $ | 788 | ​ | $ | 4,933
Opening balance sheet adjustments | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4
Business dispositions | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (354) | ​ | ​ | (354)
Effects of currency exchange | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (100) | ​ | ​ | — | ​ | ​ | (8) | ​ | ​ | (108)
Balance at December 31, 2018 | ​ | $ | 1,275 | ​ | $ | 1,299 | ​ | $ | 1,435 | ​ | $ | 40 | ​ | $ | 426 | ​ | $ | 4,475
Opening balance sheet adjustments | ​ | ​ | — | ​ | ​ | (1) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (1)
Business dispositions | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (52) | ​ | ​ | (52)
Effects of currency exchange | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (2) | ​ | ​ | — | ​ | ​ | (1) | ​ | ​ | (3)
Balance at December 31, 2019 | ​ | $ | 1,275 | ​ | $ | 1,298 | ​ | $ | 1,433 | ​ | $ | 40 | ​ | $ | 373 | ​ | $ | 4,419

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 + Details
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