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Divestitures - Narrative (Details) $ in Millions, € in Billions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2021 USD ($) | Aug. 31, 2021 EUR (€) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from sale of discontinued operations, net of cash disposed |  |  |  | $ 6 | $ 0 |
Income from continuing operations before taxes and equity in net earnings of affiliates |  |  |  | 307 | 263 |
European Tinplate |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Income from continuing operations before taxes and equity in net earnings of affiliates |  |  |  | $ 15 |  |
European Tinplate |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Disposal group, pre tax loss | $ 101 |  |  |  |  |
Income tax charges | 81 |  |  |  |  |
European Tinplate | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from sale of discontinued operations, net of cash disposed | $ 2,300 | € 1.9 |  |  |  |
Equity method investment retained after disposal, percent | 20.00% | 20.00% |  |  |  |
Net sales |  |  |  |  | $ 514 |
Transit Packaging | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Net sales |  |  |  |  |  | $ 39
Transit Packaging | Discontinued Operations, Disposed of by Sale | Forecast |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from sale of discontinued operations, net of cash disposed |  |  | $ 182 |  |  |
Gain on disposition of business |  |  | $ 100 |  |  |

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