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Goodwill and Intangible Assets, Net (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020
​ |  | Automotive |  | Food Packaging |  | Metals |  | Home Fashion |  | Pharma |  | Consolidated
​ | ​ | (in millions)
Gross carrying amount, Jan 1 | ​ | $ | 336 |  | $ | 6 |  | $ | 4 |  | $ | 23 |  | $ | — | ​ | $ | 369
Acquisitions |  | ​ | 5 |  | ​ | — |  | ​ | — |  | ​ | 1 |  | ​ | 13 |  | ​ | 19
Gross carrying amount, Dec 31 |  | ​ | 341 |  | ​ | 6 |  | ​ | 4 |  | ​ | 24 |  | ​ | 13 |  | ​ | 388
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accumulated impairment, Jan 1 |  | ​ | (87) |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | (87)
Impairment |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | (3) |  | ​ | — |  | ​ | (3)
Accumulated impairment, Dec 31 |  | ​ | (87) |  | ​ | — |  | ​ | — |  | ​ | (3) |  | ​ | — |  | ​ | (90)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net carrying value, Dec 31 | ​ | $ | 254 | ​ | $ | 6 | ​ | $ | 4 | ​ | $ | 21 | ​ | $ | 13 | ​ | $ | 298
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2019
​ |  | Automotive |  | Food Packaging |  | Metals |  | Home Fashion |  | Consolidated
​ | ​ | (in millions)
Gross carrying amount, Jan 1 | ​ | $ | 328 | ​ | $ | 6 | ​ | $ | — | ​ | $ | — | ​ | $ | 334
Acquisitions |  | ​ | 8 |  | ​ | — |  | ​ | 4 |  | ​ | 22 |  | ​ | 34
Foreign exchange |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | 1 |  | ​ | 1
Gross carrying amount, Dec 31 |  | ​ | 336 |  | ​ | 6 |  | ​ | 4 |  | ​ | 23 |  | ​ | 369
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Accumulated impairment, Jan 1 |  | ​ | (87) |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | (87)
Impairment |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | —
Accumulated impairment, Dec 31 |  | ​ | (87) |  | ​ | — |  | ​ | — |  | ​ | — |  | ​ | (87)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net carrying value, Dec 31 | ​ | $ | 249 | ​ | $ | 6 | ​ | $ | 4 | ​ | $ | 23 | ​ | $ | 282
Intangible assets, net | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2020 | ​ | December 31, 2019
​ |  | Gross |  | ​ | ​ |  | Net |  | Gross |  | ​ | ​ |  | Net
​ | ​ | Carrying | ​ | Accumulated | ​ | Carrying | ​ | Carrying | ​ | Accumulated | ​ | Carrying
​ | ​ | Amount | ​ | Amortization | ​ | Value | ​ | Amount | ​ | Amortization | ​ | Value
​ | ​ | (in millions)
Definite-lived intangible assets: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Customer relationships | ​ | $ | 399 | ​ | $ | (176) | ​ | $ | 223 | ​ | $ | 397 | ​ | $ | (155) |  | $ | 242
Developed technology | ​ | ​ | 254 | ​ | ​ | (6) | ​ | ​ | 248 | ​ | ​ | 4 | ​ | ​ | (4) |  | ​ | —
Other | ​ |  | 269 | ​ |  | (163) | ​ |  | 106 | ​ |  | 269 | ​ |  | (142) | ​ |  | 127
​ | ​ | $ | 922 | ​ | $ | (345) | ​ | $ | 577 | ​ | $ | 670 | ​ | $ | (301) | ​ | $ | 369
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Indefinite-lived intangible assets | ​ |  |  | ​ |  |  | ​ | $ | 83 | ​ |  |  | ​ |  |  | ​ | $ | 62
Intangible assets, net | ​ |  |  | ​ |  |  | ​ | $ | 660 | ​ |  |  | ​ |  |  | ​ | $ | 431
Schedule of Definite-Lived Intangible Assets, Future Amortization Expense | ​
​ | ​ | ​ | ​
Year |  | Amount
​ | ​ | (in millions)
2021 | ​ | $ | 63
2022 | ​ |  | 60
2023 | ​ |  | 60
2024 | ​ |  | 59
2025 | ​ |  | 57
Thereafter | ​ |  | 278
​ | ​ | $ | 577

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