XML 111 R70.htm IDEA: XBRL DOCUMENT
v3.10.0.1

DEBT - Schedule of Senior Notes (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2014 | Mar. 30, 2013 | Feb. 29, 2012 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2013
Debt Instruments [Line Items] |  |  |  |  |  |  |
Liabilities, Fair Value Adjustment |  |  |  | $ 58 | $ 97 |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 2,342 |
Principal Amount of Senior Notes Tendered |  |  |  |  |  | 2,091 |
Long-term Debt |  |  |  |  |  | $ 2,228 |
Senior Notes [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Percentage of FM O&G LLC senior notes tendered for new FCX senior notes |  |  |  |  |  | 89.00% |
Debt Instrument, Unamortized Consideration Paid |  |  |  | 6 |  |  |
Liabilities, Fair Value Adjustment |  |  |  |  | 49 | $ 151 |
Debt Instrument, Unamortized Fair Value Adjustments |  |  |  | 46 |  |  |
Debt Instrument, Face Amount |  |  |  | 454 | 1,234 | 407 | $ 6,500
Proceeds from Issuance of Long-term Debt | $ 2,970 | $ 6,400 | $ 2,470 |  |  |  |
Long-term Debt |  |  |  | $ 800 |  |  |
Senior Notes [Member] | 6.125% Senior Notes due 2019 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Liabilities, Fair Value Adjustment |  |  |  |  | $ 5 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.125% | 6.125% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 179 | 237 |
Principal Amount of Senior Notes Tendered |  |  |  |  |  | 179 |
Long-term Debt |  |  |  |  |  | 186 |
Senior Notes [Member] | 6.5% Senior Notes due 2020 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Liabilities, Fair Value Adjustment |  |  |  |  | $ 23 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.50% | 6.50% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 552 | 617 |
Principal Amount of Senior Notes Tendered |  |  |  |  |  | 552 |
Long-term Debt |  |  |  |  |  | 583 |
Senior Notes [Member] | 6.625% Senior Notes due 2021 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Liabilities, Fair Value Adjustment |  |  |  |  | $ 12 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.625% | 6.625% |  |
Debt Instrument, Face Amount |  |  |  |  | $ 228 | 261 |
Principal Amount of Senior Notes Tendered |  |  |  |  |  | 228 |
Long-term Debt |  |  |  |  |  | 242 |
Senior Notes [Member] | 6.75% Senior Notes due 2022 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.75% | 6.75% |  |
Debt Instrument, Face Amount |  |  |  | $ 404 |  | 449 |
Principal Amount of Senior Notes Tendered |  |  |  |  |  | 404 |
Long-term Debt |  |  |  | $ 0 | $ 427 | 432 |
Senior Notes [Member] | 6.875% Senior Notes due 2023 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.875% | 6.875% |  |
Debt Instrument, Face Amount |  |  |  |  |  | 778 |
Principal Amount of Senior Notes Tendered |  |  |  |  |  | 728 |
Long-term Debt |  |  |  | $ 768 | $ 776 | $ 785 |
Freeport-McMoRan Oil & Gas | Senior Notes [Member] | 6.125% Senior Notes due 2019 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.125% |  |  |
Freeport-McMoRan Oil & Gas | Senior Notes [Member] | 6.5% Senior Notes due 2020 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.50% |  |  |
Freeport-McMoRan Oil & Gas | Senior Notes [Member] | 6.625% Senior Notes due 2021 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.625% |  |  |
Freeport-McMoRan Oil & Gas | Senior Notes [Member] | 6.75% Senior Notes due 2022 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.75% |  |  |
Freeport-McMoRan Oil & Gas | Senior Notes [Member] | 6.875% Senior Notes due 2023 [Member] |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.875% |  |  |
Debt Instrument, Face Amount |  |  |  | $ 50 |  |  |
Long-term Debt |  |  |  | $ 0 | $ 54 |  |

X
- Definition Debt Instrument, Unamortized Consideration Paid + References No definition available. + Details
Name: | fcx_DebtInstrumentUnamortizedConsiderationPaid
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Instrument, Unamortized Fair Value Adjustments + References No definition available. + Details
Name: | fcx_DebtInstrumentUnamortizedFairValueAdjustments
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of FM O&G LLC senior notes tendered for new FCX senior notes + References No definition available. + Details
Name: | fcx_PercentageofFMOGLLCseniornotestenderedfornewFCXseniornotes
Namespace Prefix: | fcx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Principal Amount of Senior Notes Tendered + References No definition available. + Details
Name: | fcx_PrincipalAmountofSeniorNotesTendered
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A6.125SeniorNotesdue2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A6.5SeniorNotesdue2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A6.625SeniorNotesdue2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A6.75SeniorNotesdue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A6.875SeniorNotesdue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=fcx_FreeportMcMoRanOilGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |