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Divestitures - Narrative (Details) $ in Millions, € in Billions			1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 31, 2021 USD ($)	Aug. 31, 2021 EUR (€)	Apr. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of businesses, net of cash received						$ 182	$ 0
Capital expenditures						310	325
Income from continuing operations before taxes and equity in net earnings of affiliates				$ 402	$ 319	709	582
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				8		$ 23
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 businesses, net of cash received	$ 2,300	€ 1.9
Equity method investment retained after disposal, percent	20.00%	20.00%
Capital expenditures							$ 20
Transit Packaging
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, pre tax loss				113
Gain on disposition of business				$ 102
Transit Packaging | 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 businesses, net of cash received			$ 180

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