Restructuring and Impairment Charges - Assets and liabilities classified as held-for-sale (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Disposal group
Restructuring charges	$ 4	$ 14
Other assets \| Disposal Group, Held for Sale, Not Discontinued Operations
Disposal group
Asset held for sale	73	73
South American Subsidiaries, PP&E \| Other assets \| Disposal Group, Held for Sale, Not Discontinued Operations
Disposal group
Cash and cash equivalents	2	2
Accounts receivable, net	29	29
Inventories	29	29
Prepaid expenses	1	1
Property, plant and equipment, net	58	58
Other assets	1	1
Impairment provision to record at fair value, less cost to sell	(49)	(49)
Asset held for sale	71	71
South American Subsidiaries, PP&E \| Liabilities held for sale \| Disposal Group, Held for Sale, Not Discontinued Operations
Disposal group
Accounts payable	18	18
Accrued liabilities	6	6
Impairment provision related to cumulative translation losses	311	311
Liabilities held for sale	335	335
Stockton, California and Lane Cove, Australia, PP&E \| Disposal Group, Held for Sale, Not Discontinued Operations
Disposal group
Asset held for sale			$ 8
Stockton, California and Lane Cove, Australia, PP&E \| Other assets \| Disposal Group, Held for Sale, Not Discontinued Operations
Disposal group
Asset held for sale	2	2
Stockton, California, PP&E \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Disposal group
Consideration for the sale of assets	$ 11	11
Gain on the sale of land and building		$ 5

Impairment provision to record at fair value, less cost to sell assets attributable to disposal group held for sale.

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Amount classified as assets attributable to disposal group held for sale or disposed of.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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