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Contingencies and Commitments (Unaudited) (Details) (PT Freeport Indonesia [Member], USD $) In Millions, unless otherwise specified |  |  | 1 Months Ended
--- | --- | --- | ---
Jun. 30, 2014 | Dec. 31, 2013 | Aug. 31, 2014 Subsequent Event [Member]
Loss Contingencies [Line Items] |  |  |
Proceeds from Income Tax Refunds |  |  | $ 151
Tax Overpayment |  | 303 |
Disputed Tax Assessments Receivable | $ 379 |  |

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- Definition Disputed tax assessments (including interest and penalties) receivable. + References No definition available. + Details
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- Definition Total tax payments made in excess of corresponding tax obligation as of the period end date. + References No definition available. + Details
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- Details
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- Definition The amount of cash received during the period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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