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v2.4.1.9

FINANCIAL INSTRUMENTS (Oil and Gas) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 MBbls | Dec. 31, 2013
Derivative [Line Items] |  |  |
Derivative Liability | $ 99 us-gaap_DerivativeLiabilities |  | $ 320 us-gaap_DerivativeLiabilities
Maximum Price Limit per Barrel | 20 fcx_MaximumPriceLimitperBarrel |  |
Deferred Option Premiums and Accrued Interest [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability | $ 210 us-gaap_DerivativeLiabilities / us-gaap_FinancialInstrumentAxis = fcx_DeferredOptionPremiumsandAccruedInterestMember |  | $ 444 us-gaap_DerivativeLiabilities / us-gaap_FinancialInstrumentAxis = fcx_DeferredOptionPremiumsandAccruedInterestMember
Crude Oil Options [Member] | 2014 Positions [Member] | Derivatives Not Designated as Hedging Instruments [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount | 31,000,000 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = fcx_CrudeOilOptionsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / us-gaap_OpenOptionContractsWrittenTypeAxis = fcx_A2014PositionsMember |  |
Crude Oil Options [Member] | 2015 Positions [Member] | Derivatives Not Designated as Hedging Instruments [Member] | 84 MBbls [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative, Nonmonetary Notional Amount | 84 invest_DerivativeNonmonetaryNotionalAmount / us-gaap_DerivativeInstrumentRiskAxis = fcx_CrudeOilOptionsMember / us-gaap_EnergyAxis = fcx_A84MBblsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / us-gaap_OpenOptionContractsWrittenTypeAxis = fcx_A2015PositionsMember | [1] |
Derivative, Average Floor Price | 90 us-gaap_DerivativeAverageFloorPrice / us-gaap_DerivativeInstrumentRiskAxis = fcx_CrudeOilOptionsMember / us-gaap_EnergyAxis = fcx_A84MBblsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / us-gaap_OpenOptionContractsWrittenTypeAxis = fcx_A2015PositionsMember | [1],[2] |
Derivative, Average Floor Price Limit | 70 fcx_DerivativeAverageFloorPriceLimit / us-gaap_DerivativeInstrumentRiskAxis = fcx_CrudeOilOptionsMember / us-gaap_EnergyAxis = fcx_A84MBblsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / us-gaap_OpenOptionContractsWrittenTypeAxis = fcx_A2015PositionsMember | [1],[2] |
Derivative, Underlying Basis | Brent |  |
Weighted Average [Member] | Crude Oil Options [Member] |  |  |
Derivative [Line Items] |  |  |
Deferred Premium Price | 6.89 fcx_DeferredPremiumPrice / us-gaap_DerivativeInstrumentRiskAxis = fcx_CrudeOilOptionsMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember |  |
Weighted Average [Member] | Crude Oil Options [Member] | 2015 Positions [Member] | Derivatives Not Designated as Hedging Instruments [Member] | 84 MBbls [Member] |  |  |
Derivative [Line Items] |  |  |
Deferred Premium Price | 6.89 fcx_DeferredPremiumPrice / us-gaap_DerivativeInstrumentRiskAxis = fcx_CrudeOilOptionsMember / us-gaap_EnergyAxis = fcx_A84MBblsMember / us-gaap_HedgingDesignationAxis = us-gaap_NondesignatedMember / us-gaap_OpenOptionContractsWrittenTypeAxis = fcx_A2015PositionsMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember | [1] |
[1] | If the index price is less than the per barrel floor, FCX receives the difference between the per barrel floor and the index price up to a maximum of $20 per barrel less the option premium. If the index price is at or above the per barrel floor, FCX pays the option premium and no cash settlement is received.
[2] | The average strike prices do not reflect any premiums to purchase the put options.

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- Definition The derivative average floor price limit. + References No definition available. + Details
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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Reference to the index or unit of measurement for the underlying which establishes the pricing terms of the derivative instrument. For example, the basis on the underlying for a natural gas futures contract might be the NYMEX price per million British thermal units (MMBtu). + References No definition available. + Details
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