v3.20.2

Acquisitions and Divestitures (Details) $ in Millions |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 01, 2020 USD ($) employee | Feb. 01, 2020 USD ($) employee | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Total Sales |  |  | $ 1,187 |  | $ 1,923 | $ 2,798 | $ 3,764 |  |  |
Disposed of by sale | Aluminum Rolling Mill in Itapissuma, Brazil |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Consideration received |  | $ 46 |  |  |  |  |  |  |  |
Gain (loss) on sale |  | $ (59) |  |  |  |  |  |  |  |
Sale transaction costs |  |  | 6 | $ 53 |  |  |  |  |  |
Total Sales |  |  |  |  |  |  |  | $ 143 | $ 179 | $ 162
Number of employees | employee |  | 500 |  |  |  |  |  |  |  |
Disposed of by sale | Hard Alloy Extrusions Plant in South Korea |  |  |  |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |  |  |  |
Consideration received | $ 55 |  |  |  |  |  |  |  |  |
Gain (loss) on sale | 31 |  | $ 1 |  |  |  |  |  |  |
Write-off of goodwill | $ 6 |  |  |  |  |  |  |  |  |
Total Sales |  |  |  |  |  |  |  | $ 51 | $ 53 | $ 50
Number of employees | employee | 160 |  |  |  |  |  |  |  |  |

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