Amount of assessment by government agencies in connection with alleged obligations.

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- Definition

Amount of assessment by government agencies in connection with alleged obligations, expressed in foreign currency.

+ References

No definition available.

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- Definition

The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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- Definition

The amount of estimated penalties accrued as of the balance sheet date arising from income tax examinations.

+ References

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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.

+ References

No definition available.

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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- Definition

Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Contingencies and Commitments (Unaudited) (Details) IDR in Trillions	Apr. 29, 2016 USD ($)	Apr. 29, 2016 IDR	Mar. 31, 2016 USD ($)	Dec. 31, 2014 USD ($)
PT Freeport Indonesia [Member]
Loss Contingencies [Line Items]
Value Added Tax Receivable				$ 269,000,000
Income Tax Examination, Penalties Accrued			$ 0
Subsequent Event [Member] \| PT Freeport Indonesia [Member]
Loss Contingencies [Line Items]
Assessment By Foreign Government Of Alleged Obligations	$ 207,000,000
Assessment By Foreign Government of Alleged Obligations, Expressed in Foreign Currency \| IDR		IDR 2.7
Royalty Tax [Member] \| Cerro Verde [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss			515,000,000
RelatingtotheperiodDecember2006throughSeptember2011 [Member] \| Royalty Tax [Member] \| Cerro Verde [Member]
Loss Contingencies [Line Items]
Assessment By Foreign Government Of Alleged Obligations			413,000,000
Cash and Cash Equivalents [Member] \| PT Freeport Indonesia [Member]
Loss Contingencies [Line Items]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority			196,000,000
Other Liabilities [Member] \| PT Freeport Indonesia [Member]
Loss Contingencies [Line Items]
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority			$ 38,000,000