XML 104 R67.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

DEBT (Details) |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 10 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 15, 2019 USD ($) | May 02, 2019 USD ($) | Jun. 30, 2017 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2021 | Mar. 31, 2014 USD ($) | Oct. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) payment | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Jun. 29, 2017 USD ($) | Dec. 31, 2014 USD ($)
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | $ 27,000,000 | $ (7,000,000) | $ (21,000,000) |  |
Long-term Debt, Maturities, Repayments of Principal in Year Two |  |  |  | $ 507,000,000 |  |  |  | 507,000,000 |  |  |  |
Long-term Debt |  |  |  | $ 9,826,000,000 |  |  |  | 9,826,000,000 | 11,141,000,000 |  |  |
Proceeds from (Repayments of) Debt | $ 1,187,000,000 |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Term of Debt Agreement |  | 5 years |  |  |  |  |  |  |  |  |  |
Debt Instrument, Leverage Ratio |  |  |  | 5.25 |  |  | 3.75 |  |  |  |  |
Debt instrument, leverage ratio, amount of unrestricted cash that may be applied to reduce total debt |  |  |  | $ 1,250,000,000 |  |  | $ 2,500,000,000 |  |  |  |  |
Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | (26,000,000) | 10,000,000 | 26,000,000 |  |
Other Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 41,000,000 |  |  |  | $ 41,000,000 | $ 166,000,000 |  |  |
2.15% Senior Notes due 2017 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 2.15% |  |  |  | 2.15% |  |  |  |
2.30% Senior Notes Due 2017 | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 2.30% |  |  |  | 2.30% |  |  |  |
6.125% Senior Notes due 2019 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  |  | 2,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.125% |  |  |  | 6.125% | 6.125% |  |  |
2.375% Senior Notes due March 2018 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  |  | 0 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 2.375% |  |  |  | 2.375% |  |  |  |
6.5% Senior Notes due 2020 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  |  | 13,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.50% |  |  |  | 6.50% | 6.50% |  |  |
6.625% Senior Notes due 2021 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  |  | 6,000,000 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.625% |  |  |  | 6.625% | 6.625% |  |  |
6.75% Senior Notes due 2022 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.75% |  |  |  | 6.75% | 6.75% |  |  |
3.100% Senior Notes due March 2020 | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | $ (5,000,000) |  |  |  |
Long-term Debt |  |  |  | $ 0 |  |  |  | $ 0 | $ 999,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 3.10% |  |  |  | 3.10% |  |  |  |
6.875% Senior Notes due 2023 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  | 2,000,000 |  |  |
Long-term Debt |  |  |  | $ 0 |  |  |  | $ 0 | $ 768,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.875% |  |  |  | 6.875% | 6.875% |  |  |
4.00% Senior Notes Due 2021 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 194,000,000 |  |  |  | $ 194,000,000 | $ 597,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 4.00% |  |  |  | 4.00% |  |  |  |
3.55% Senior Notes Due 2022 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | $ 0 |  |  |  |
Long-term Debt |  |  |  | $ 1,876,000,000 |  |  |  | $ 1,876,000,000 | 1,886,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 3.55% |  |  |  | 3.55% |  |  |  |
3.875% Senior Notes due March 2023 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 1,917,000,000 |  |  |  | $ 1,917,000,000 | 1,915,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 3.875% |  |  |  | 3.875% |  |  |  |
senior notes 4.55 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 846,000,000 |  |  |  | $ 846,000,000 | 845,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 4.55% |  |  |  | 4.55% |  |  |  |
Senior Notes due 2034 5 point 4 percent [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 741,000,000 |  |  |  | $ 741,000,000 | 741,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 5.40% |  |  |  | 5.40% |  |  |  |
5.450% Senior Notes due March 2043 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 1,844,000,000 |  |  |  | $ 1,844,000,000 | 1,843,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 5.45% |  |  |  | 5.45% |  |  |  |
Senior Notes due 2027, 5% [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.00% |  |  | 5.00% |  |  |  | 5.00% |  |  |  |
Senior Notes due 2027, 5% [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 592,000,000 |  |  |  | $ 592,000,000 | 0 |  |  |
Senior Notes due 2029, 5.25% [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.25% |  |  | 5.25% |  |  |  | 5.25% |  |  |  |
Senior Notes due 2029, 5.25% [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 592,000,000 |  |  |  | $ 592,000,000 | 0 |  |  |
Senior Notes Due 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 6.875% |  |  |  |  |  |  |  |  |  |  |
Senior Notes Due 2023 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | (6,000,000) |  |  |  |
Senior Notes Due 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.00% |  |  |  |  |  |  |  |  |  |  |
Senior Notes Due 2021 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | (15,000,000) |  |  |  |
Senior Notes Due 2022 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.55% |  |  |  |  |  |  |  |  |  |  |
Senior Notes Due 2022 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  |  | 8,000,000 |  |  |
Cerro Verde | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | 826,000,000 |  |  |  | 826,000,000 | 1,023,000,000 |  |  |
Cerro Verde | Shareholder Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | 0 |  |  |  | 0 |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Remaining Borrowing Capacity |  |  |  | 200,000,000 |  |  |  | 200,000,000 |  |  |  | $ 800,000,000
Cerro Verde | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  |  | 1,000,000 | 3,000,000 | $ 5,000,000 |  |
Freeport McMoRan Corporation [Member] | 7.125% Debentures due 2027 [Member] | Debentures [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 115,000,000 |  |  |  | $ 115,000,000 | 115,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 7.125% |  |  |  | 7.125% |  |  |  |
Freeport McMoRan Corporation [Member] | 9.5% Senior Notes due 2031 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 125,000,000 |  |  |  | $ 125,000,000 | 126,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 9.50% |  |  |  | 9.50% |  |  |  |
Freeport McMoRan Corporation [Member] | 6.125% Senior Notes due 2034 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | $ 117,000,000 |  |  |  | $ 117,000,000 | 117,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.125% |  |  |  | 6.125% |  |  |  |
Freeport-McMoRan Oil & Gas | 6.125% Senior Notes due 2019 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.125% |  |  |  | 6.125% |  |  |  |
Freeport-McMoRan Oil & Gas | 6.5% Senior Notes due 2020 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.50% |  |  |  | 6.50% |  |  |  |
Freeport-McMoRan Oil & Gas | 6.625% Senior Notes due 2021 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.625% |  |  |  | 6.625% |  |  |  |
Freeport-McMoRan Oil & Gas | 6.75% Senior Notes due 2022 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.75% |  |  |  | 6.75% |  |  |  |
Freeport-McMoRan Oil & Gas | 6.875% Senior Notes due 2023 [Member] | Senior Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.875% |  |  |  | 6.875% |  |  |  |
Line of Credit [Member] | Cerro Verde | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  | $ 1,500,000,000 |  |  |  |  |  |  |  | $ 1,275,000,000 |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  | $ 1,800,000,000 |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Term of Debt Agreement |  |  |  |  |  | 5 years |  |  |  |  |  |
Line of Credit Facility, Increase (Decrease), Net |  |  | $ 225,000,000 |  |  |  |  |  |  |  |  |
Number of Installment Payments under Installment Program | payment |  |  |  |  |  |  |  | 4 |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  |  | 3.70% |  |  |  | 3.70% |  |  |  |
Letter of Credit [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Line of Credit |  |  |  | $ 13,000,000 |  |  |  | $ 13,000,000 |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  | 1,500,000,000 |  |  |  | 1,500,000,000 |  |  |  |
Revolving Credit Facility [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | 0 |  |  |  | 0 | 0 |  |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 3,500,000,000 |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  | 3,500,000,000 |  |  |  | 3,500,000,000 |  |  |  |
Revolving Credit Facility [Member] | Amended Credit Facility, Maturing April 20, 2024 [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | 3,260,000,000 |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Amended Credit Facility, Maturing April 20, 2023 [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | $ 240,000,000 |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | PT Freeport Indonesia [Member] | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  | $ 500,000,000 |  |  |  | 500,000,000 |  |  |  |
Debt Instrument, Payment Period One [Member] | Line of Credit [Member] | Cerro Verde | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment |  |  |  |  |  |  |  | 225,000,000 |  |  |  |
June 30, 2021 [Member] | Line of Credit [Member] | Cerro Verde | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment |  |  |  |  |  |  |  | 225,000,000 |  |  |  |
Debt Instrument, Payment Period Three [Member] | Line of Credit [Member] | Cerro Verde | Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment |  |  |  |  |  |  |  | 525,000,000 |  |  |  |
Repayments of Lines of Credit |  |  |  |  |  |  |  | $ 200,000,000 | $ 20,000,000 |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Coverage Ratio |  |  |  |  |  |  |  | 2.25 |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Leverage Ratio |  |  |  |  |  |  |  | 5.25 |  |  |  |
Forecast [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Cerro Verde [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Leverage Ratio |  |  |  |  | 3.75 |  |  |  |  |  |  |

X
- Definition Cerro Verde [Abstract] + References No definition available. + Details
Name: | fcx_CerroVerdeAbstract
Namespace Prefix: | fcx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum coverage interest ratio (ratio of consolidated EBITDAX, as defined in the credit agreement, to consolidated cash interest expense). + References No definition available. + Details
Name: | fcx_DebtInstrumentCovenantComplianceCoverageRatio
Namespace Prefix: | fcx_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Leverage ratio per debt agreement, calculated as net debt divided by EBITDA. + References No definition available. + Details
Name: | fcx_DebtInstrumentCovenantComplianceLeverageRatio
Namespace Prefix: | fcx_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Covenant Compliance, Leverage Ratio, Unrestricted Cash Applied to Total Debt + References No definition available. + Details
Name: | fcx_DebtInstrumentCovenantComplianceLeverageRatioUnrestrictedCash
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of installment payments under installment program. + References No definition available. + Details
Name: | fcx_DebtInstrumentNumberofInstallmentPayments
Namespace Prefix: | fcx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Related Party Transaction, Remaining Borrowing Capacity + References No definition available. + Details
Name: | fcx_RelatedPartyTransactionRemainingBorrowingCapacity
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Revolving Credit Facility [Abstract] + References No definition available. + Details
Name: | fcx_RevolvingCreditFacilityAbstract
Namespace Prefix: | fcx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: 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 3: 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_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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 the required periodic payments including both interest and principal payments. + 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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 3: 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(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) of the credit facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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=119400593&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 Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
Name: | us-gaap_ProceedsFromRepaymentsOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_LongtermDebtTypeAxis=fcx_OtherDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A2.15SeniorNotesDue2017Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesdue20172point3percentMember
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_A2375SeniorNotesDueMarch2018Member
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_A3100SeniorNotesDueMarch2020Member
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: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesdue20214percentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A355SeniorNotesDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A3875SeniorNotesDueMarch2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesdue20244point55percentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesdue20345.4percentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_A5450SeniorNotesDueMarch2043Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesdue20275Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesdue20295.25Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesDue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesDue2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_DebenturesDue2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesDue2031Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_SeniorNotesDue2034Member
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: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_AmendedCreditFacilityMaturingApril202024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=fcx_AmendedCreditFacilityMaturingApril202023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | fcx_DebtInstrumentPaymentPeriodAxis=fcx_DebtInstrumentPaymentPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fcx_DebtInstrumentPaymentPeriodAxis=fcx_DebtInstrumentPaymentPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | fcx_DebtInstrumentPaymentPeriodAxis=fcx_DebtInstrumentPaymentPeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |