Asset Retirement Obligations (Details) $ in Millions	12 Months Ended
Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Activity related to asset retirement obligations [Roll Forward]
Balance, January 1	$ 166	$ 158
Additions	5	1
Accretion expense	12	12
Remeasurement/translation	(9)	7
Changes in estimates, including cost and timing of cash flows	(15)	(1)
Settlements/payments	(10)	(15)
Other acquisition and divestiture related	0	4
Balance, December 31	149	166
Asset retirement obligations [Abstract]
Current portion included in “Accrued liabilities”	10	9
Noncurrent portion included in “Asset retirement obligations”	139	157
Asset retirement obligations	149	166
Assumptions used in determining asset retirement obligations [Abstract]
Environmental rehabilitation trust assets	$ 12	$ 12
Minimum \| Measurement Input, Discount Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.015
Minimum \| Measurement Input, Risk Free Interest Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.039
Maximum \| Measurement Input, Discount Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.044
Maximum \| Measurement Input, Risk Free Interest Rate
Assumptions used in determining asset retirement obligations [Abstract]
Measurement input in determining asset retirement obligation	0.169
Mines \| Minimum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	3 years
Mines \| Maximum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	25 years
Other Assets \| Minimum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	1 year
Other Assets \| Maximum
Assumptions used in determining asset retirement obligations [Abstract]
Estimated useful life	32 years

Asset Retirement Obligation, Other Acquisition And Divestiture Related

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Value of input used to measure alternative investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

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Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of foreign currency translation gain (loss) which decreases (increases) asset retirement obligations.

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Amount of asset retirement obligations incurred during the period.

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Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of costs recognized in the balance sheet for known or estimated future costs arising from requirements to perform activities to remediate one or more sites.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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