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v3.10.0.1

Debt (Details) $ / shares in Units, $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jun. 27, 2018 $ / shares | Apr. 04, 2018 USD ($) | Apr. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) $ / shares | Mar. 31, 2018 USD ($) | Jun. 30, 2017 USD ($) $ / shares | Jun. 30, 2018 USD ($) $ / shares | Jun. 30, 2017 USD ($) $ / shares | Dec. 31, 2017 USD ($)
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities |  |  |  | $ 11,127 |  |  | $ 11,127 |  | $ 13,117
Less current portion of long-term debt and short-term borrownings |  |  |  | (4) |  |  | (4) |  | (1,414)
Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months |  |  |  |  |  |  |  |  | 1,414
Long-term debt |  |  |  | 11,123 |  |  | 11,123 |  | 11,703
Liabilities, Fair Value Adjustment |  |  |  |  |  |  | 63 |  | 97
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net |  |  |  | 76 |  |  | 76 |  | 85
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Term |  |  | 5 years |  |  |  |  |  |
Senior Notes Issued by FCX [Abstract] |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  |  |  | 2,297 | $ 1,250 |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Net loss (gain) on exchanges and early extinguishment of debt |  |  |  | 9 |  | $ (4) | 8 | (3) |
Interest Costs Incurred |  |  |  | $ 165 |  | $ 192 | $ 341 | $ 387 |
Dividends declared per share of common stock | $ / shares | $ 0.05 |  |  | $ 0.05 |  | $ 0 | $ 0.10 | $ 0 |
Long-term Debt and Capital Lease Obligations |  |  |  |  |  |  |  |  | 11,703
Property, Plant and Equipment [Member] |  |  |  |  |  |  |  |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Interest Costs Capitalized |  |  |  | $ 23 |  | $ 30 | $ 48 | $ 58 |
Line of Credit [Member] | Line of Credit [Member] | Cerro Verde [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | 1,171 |  |  | 1,171 |  | 1,269
Line of Credit [Member] | Letter of Credit [Member] |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |
Long-term Line of Credit |  |  |  | 13 |  |  | 13 |  |
Revolving Credit Facility, Remaining Borrowing Capacity |  |  | $ 1,500 | 1,500 |  |  | 1,500 |  |
Line of Credit [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  | 0 |  |  | 0 |  |
Revolving Credit Facility [Abstract] |  |  |  |  |  |  |  |  |
Revolving Credit Facility, Remaining Borrowing Capacity |  |  |  | 3,500 |  |  | 3,500 |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 3,500 |  |  |  |  |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Amount of revolving credit facility available to subsidiary |  |  | $ 500 |  |  |  |  |  |
Senior Notes [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  | 480 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | 454 |  |  | 454 |  |
Debt Issuance Costs, Net |  |  |  | 26 |  |  | 26 |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Extinguishment Of Debt, Redemption Value |  |  |  | 470 |  |  |  |  |
Net loss (gain) on exchanges and early extinguishment of debt |  |  |  | 10 |  |  |  |  |
Gains (losses) primarily associated with modification of credit facility |  |  |  |  |  | $ 4 |  |  |
Repayments of Lines of Credit |  |  |  |  | $ 100 |  |  |  |
Senior Notes [Member] | 2.375% Senior Notes due March 2018 [Member] |  |  |  |  |  |  |  |  |
Senior Notes Issued by FCX [Abstract] |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  | $ 1,400 |  |  |  |
Senior Notes [Member] | 6.75% Senior Notes due 2022 [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  | 426 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | 404 |  |  | 404 |  |
Debt Issuance Costs, Net |  |  |  | 22 |  |  | 22 |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Extinguishment Of Debt, Redemption Value |  |  |  | 418 |  |  |  |  |
Net loss (gain) on exchanges and early extinguishment of debt |  |  |  | 8 |  |  |  |  |
Senior Notes [Member] | FCX [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt, Gross |  |  |  | 9,594 |  |  | 9,594 |  | 11,429
Senior Notes [Member] | Freeport-McMoRan Oil & Gas |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt, Gross |  |  |  | 0 |  |  | 0 |  | 54
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Extinguishment Of Debt, Redemption Value |  | $ 454 |  |  |  |  |  |  |
Senior Notes [Member] | Freeport-McMoRan Oil & Gas | 6.875% Senior Notes due 2023 [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Extinguishment of Debt, Amount |  |  |  | 54 |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | 50 |  |  | 50 |  |
Debt Issuance Costs, Net |  |  |  | 4 |  |  | 4 |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Extinguishment Of Debt, Redemption Value |  |  |  | 52 |  |  |  |  |
Net loss (gain) on exchanges and early extinguishment of debt |  |  |  | 2 |  |  |  |  |
Debentures [Member] | Freeport McMoRan Corporation [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt, Gross |  |  |  | 358 |  |  | 358 |  | 358
Other Debt, Including Capital Leases and Short Term Borrowings [Member] |  |  |  |  |  |  |  |  |
Debt Instruments [Line Items] |  |  |  |  |  |  |  |  |
Long-term Debt and Capital Lease Obligations, Including Current Maturities |  |  |  | $ 4 |  |  | $ 4 |  | $ 7
Maximum [Member] |  |  |  |  |  |  |  |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant Compliance, Leverage Ratio |  |  | 3.75 |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |
Exchanges and Early Extinguishment of Debt [Abstract] |  |  |  |  |  |  |  |  |
DebtInstrumentCovenantComplianceCoverageRatio |  |  | 2.25 |  |  |  |  |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- 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
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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- 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
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- 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://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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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