NumberOfReportableSegmentsNotDisclosedFlag NumberOfReportableSegmentsNotDisclosedFlag NumberOfReportableSegmentsNotDisclosedFlag Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Stock repurchase program, authorized amount Share Repurchase Program, Remaining Authorized, Amount Cover [Abstract] Cover [Abstract] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Hedged item – firm sales commitments Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Exploration and research expenses Exploration Expense Trading Symbol Trading Symbol Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest All Trading Arrangements All Trading Arrangements [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Non-NEOs Non-NEOs [Member] Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Dividends declared per share of common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] Fair Value Assets Liabilities Measured On Recurring Basis Financial Statement Captions [Line Items] 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. Position [Axis] Position [Axis] Pay vs Performance Disclosure [Line Items] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Trust Assets Fair Value Disclosure Trust Assets Fair Value Disclosure Represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption, parenthetical disclosure or within the fair value disclosures required in the footnote disclosures to the financial statements. This item represents the amount of trust assets (current and long-term) existing as of the balance sheet date. 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Excludes noncurrent inventory balances (expected to remain on hand past one year or operating cycle, if longer). Equity Components [Axis] Equity Components [Axis] Other current assets Other Assets, Current Award Timing Method Award Timing Method [Text Block] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] PT Freeport Indonesia (PTFI) mud rush incident insurance settlement receivable Insurance Settlements Receivable, Current Capacity percentage Mining Facility, Percentage Of Capacity Mining Facility, Percentage Of Capacity Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Insider Trading Policies and Procedures [Line Items] Atlantic Copper Smelting and Refining Segment Atlantic Copper Smelting and Refining Segment [Member] Information on the segment which consists of a wholly owned smelting unit in Spain which smelts and refines copper concentrates and markets refined copper and precious metals in slimes. Total costs and expenses Costs and Expenses Cost Associated With Idle Facilities, Depreciation, Amortization and Depletion DD&A, idle facilities Cost Associated With Idle Facilities, Depreciation, Amortization and Depletion Cost Associated With Idle Facilities, Depreciation, Amortization and Depletion Adjustment to Compensation, Amount Adjustment to Compensation Amount Compensation Amount Outstanding Recovery Compensation Amount Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Entity Small Business Entity Small Business Company Selected Measure Amount Company Selected Measure Amount Geographical [Axis] Geographical [Axis] Tabular List, Table Tabular List [Table Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] October 2022 Unsecured Revolving Credit Facility October 2022 Unsecured Revolving Credit Facility [Member] October 2022 Unsecured Revolving Credit Facility Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Purchased Copper Purchased Copper [Member] Purchased Copper [Member] Corporate Expenses And Elimination Of Intersegment Operating Income (Loss) Corporate Expenses And Elimination Of Intersegment Operating Income (Loss) Corporate Expenses And Elimination Of Intersegment Operating Income (Loss) Credit Facility [Domain] Credit Facility [Domain] Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of year Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period Total cash and cash equivalents and restricted cash and cash equivalents presented in the consolidated statements of cash flows Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Share Repurchase Program Share Repurchase Program [Member] Share Repurchase Program Net charges for environmental and asset retirement obligations, including accretion Increase (Decrease) in Environmental And Asset Retirement Obligations Increase (Decrease) in Environmental And Asset Retirement Obligations Current assets: Assets, Current [Abstract] Consolidation Items [Axis] Consolidation Items [Axis] Interest costs Interest Costs Incurred Payments for withholding of employee taxes related to stock-based awards Payment, Tax Withholding, Share-Based Payment Arrangement Other comprehensive (loss) income, net of taxes: Other Comprehensive Income (Loss), Net of Tax [Abstract] Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares Derivative financial instruments Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Long-term tax receivables Income Taxes Receivable, Noncurrent Product and Service [Domain] Product and Service [Domain] U.S. core fixed income fund Fixed Income Securities [Member] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Copper Cathode Copper Cathode [Member] Copper Cathode [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Accrued income taxes Accrued Income Taxes, Current Copper In Concentrates Copper In Concentrates [Member] Materials and supplies, net Inventory, Raw Materials and Supplies, Net of Reserves Security Exchange Name Security Exchange Name Award Type Award Type [Axis] Corporate bonds Corporate Debt Securities [Member] PT-FI export duties Export Duties Expense Amount of expense related to export duty payments under a contractual arrangement such as payment for mineral exports. Property, plant, equipment and mine development costs, net Property, Plant and Equipment, Net Repayments of debt Repayments of Debt Total liabilities Liabilities Noncontrolling interests Equity, Attributable to Noncontrolling Interest Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Revolving Credit Facility Revolving Credit Facility [Member] Expiration Date Trading Arrangement Expiration Date Cash flow from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Total Shareholder Return Amount Total Shareholder Return Amount Silver And Other Silver And Other [Member] Silver And Other Entity [Domain] Entity [Domain] gold and other gold and other [Member] gold and other Undistributed dividends and earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Payments for environmental and asset retirement obligations Payments for Environmental Liabilities And Asset Retirement Obligations Payments for Environmental Liabilities And Asset Retirement Obligations Derivative Liability Derivative Liability Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Government mortgage-backed securities Mortgage-Backed Security, Issued by US Government-Sponsored Enterprise [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] PTFI mud rush incident insurance settlement Payments For Insurance Settlements Payments For Insurance Settlements Diluted weighted-average shares of common shares outstanding Diluted weighted-average shares of common stock outstanding Weighted Average Number of Shares Outstanding, Diluted Rod and Refining Segment Rod and Refining Segment [Member] Information on the segment which consists of copper conversion facilities located in North American and includes a refinery, three rod mills and a specialty copper products facility. MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Total stockholders’ equity Equity, Attributable to Parent Schedule of Cash Flow, Supplemental Disclosures Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Common stock held in treasury Treasury Stock, Value Proceeds from debt Proceeds from Issuance of Debt Hedging Designation [Domain] Hedging Designation [Domain] PTFI mud rush incident insurance settlement PTFI mud rush incident insurance settlement Insured Event, Gain (Loss) Derivatives: [Abstract] Derivative Instruments and Hedges, Liabilities [Abstract] Selling, general and administrative expenses Selling, General and Administrative Expense Recovery costs Recovery costs Cost of Goods and Service, Recovery Expenses, Excluding Depreciation, Depletion, and Amortization Cost of Goods and Service, Recovery Expenses, Excluding Depreciation, Depletion, and Amortization Trade accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Noncontrolling interest, ownership percentage by parent Subsidiary, Ownership Percentage, Parent Long-term debt Long-Term Debt Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Document Fiscal Period Focus Document Fiscal Period Focus All Executive Categories All Executive Categories [Member] Add shares issuable upon exercise or vesting of dilutive stock options and restricted stock units (RSUs) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Equity securities Equity Securities [Member] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] ASSETS Assets Assets [Abstract] Other comprehensive income Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Document Type Document Type Derivative Contract [Domain] Derivative Contract [Domain] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Cost per share repurchased (in dollars per share) Shares Acquired, Average Cost Per Share PT-FI PT-FI [Member] PT-FI Total Stockholder's Equity Parent [Member] Sales Sales [Member] Investment securities (current and long-term): Debt Securities, Available-for-Sale [Abstract] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Royalty expense Royalty Expense Liabilities [Abstract] Liabilities [Abstract] Amortization of unrecognized amounts included in net periodic benefit costs Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax Environmental obligations and shutdown costs Environmental Remediation Expense, before Recovery Current Fiscal Year End Date Current Fiscal Year End Date PEO Name PEO Name Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount All Award Types Award Type [Domain] Name Outstanding Recovery, Individual Name Exercised and issued stock-based awards (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Non-PEO NEO Non-PEO NEO [Member] PT Freeport Indonesia PT Freeport Indonesia [Member] Information about subsidiary PT Freeport Indonesia. Investments, Fair Value Disclosure Investments, Fair Value Disclosure Capital in Excess of Par Value Additional Paid-in Capital [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Common stock Payments of Ordinary Dividends, Common Stock Forecast Forecast [Member] Earnings per share, diluted (in dollars per share) Earnings Per Share, Diluted Name Measure Name Entity Interactive Data Current Entity Interactive Data Current Value added and other tax receivables Value Added Tax Receivable, Current Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Ownership [Axis] Ownership [Axis] Customer [Axis] Customer [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Asset-backed securities Asset-Backed Securities [Member] Accounts receivable Increase (Decrease) in Receivables Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Provision for income taxes Total Income Tax Expense (Benefit) Segment Reporting, Reconciling Item, Corporate Nonsegment Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Derivative Asset Derivative Asset Derivative, Average Forward Price Derivative, Average Forward Price Net income attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Diluted Revenues from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Derivative Instruments, Gain (Loss) Derivative Instruments, Gain (Loss) [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Interest costs capitalized Interest Costs Capitalized Defined benefit plans: Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Consolidated effective income tax rate (percent) Effective Income Tax Rate Reconciliation, Percent Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Operating income Operating Income (Loss) Total liabilities and equity Liabilities and Equity Other, net Other Operating Activities, Cash Flow Statement Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Capital in excess of par value Additional Paid in Capital Hedging Designation [Axis] Hedging Designation [Axis] Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Unrealized gains (losses) for derivative financial instruments that are designated and qualify as fair value hedge transactions and for the related hedged item [Table] Derivative Instruments, Gain (Loss) [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Legal Entity [Axis] Legal Entity [Axis] Schedule of Derivative Instruments Included in Trading Activities Schedule of Derivative Instruments Included in Trading Activities [Table Text Block] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Scenario [Domain] Scenario [Domain] Individual: Individual [Axis] Commodity Contract Commodity Contract [Member] AOCI Attributable to Parent AOCI Attributable to Parent [Member] Product and Service [Axis] Product and Service [Axis] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity Address, State or Province Entity Address, State or Province Statement [Line Items] Statement [Line Items] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Inventory [Domain] Inventory [Domain] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Financial Instruments [Domain] Financial Instruments [Domain] LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Intersegment Customers Intersegment Customers [Member] Intersegment Customers Grasberg Segment Grasberg Segment [Member] Information on Grasberg, the Indonesia mine also reported as an individual segment. Restatement Determination Date Restatement Determination Date Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Adoption Date Trading Arrangement Adoption Date Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Pension plan contributions Payment for Pension and Other Postretirement Benefits Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Unaffiliated Customers Unaffiliated Customers [Member] Unaffiliated Customers Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Segments [Axis] Segments [Axis] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Exercise Price Award Exercise Price Dividends payable - common stock Dividends Payable, Current Refined Copper Products Refined Copper Products [Member] Earnings Per Share Earnings Per Share [Text Block] Indonesia Segment Indonesia Segment [Member] Indonesia Segment South America Mines Segment South America Mines Segment [Member] Information on South America mines. Arrangement Duration Trading Arrangement Duration Subsequent event Subsequent Event [Member] Inventory [Axis] Inventory [Axis] Restricted cash and cash equivalents Restricted Cash and Cash Equivalents, Current Stockholders’ equity: Equity, Attributable to Parent [Abstract] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Segments [Domain] Segments [Domain] Unrealized gains (losses): Unrealized Gain (Loss) on Derivatives and Commodity Contracts [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] All Individuals All Individuals [Member] PEO PEO [Member] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Name Trading Arrangement, Individual Name Other income, net Other Nonoperating Income (Expense) Other Nonoperating Income (Expense) Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Equity in affiliated companies’ net earnings Income (Loss) from Equity Method Investments Contingencies and Commitments Commitments Contingencies and Guarantees [Text Block] Depreciation, depletion and amortization Depreciation, depletion and amortization (DD&A) Cost, Depreciation, Amortization and Depletion Income before income taxes and equity in affiliated companies’ net earnings Income before income taxes and equity in affiliated companies’ net earnings Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Other Operating Segment Other Operating Segment [Member] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Balance (in shares) Balance (in shares) Shares, Outstanding Accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities, Current Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Local Phone Number Local Phone Number Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Derivative Average Market Price Derivative Average Market Price The average market price for a group of price risk forward or futures contracts, such as gas futures contracts. Molybdenum Molybdenum [Member] Deferred income taxes Deferred Income Tax Liabilities, Net Changes in working capital and other: Increase (Decrease) in Operating Capital [Abstract] Payments for PTFI social investment programs Payments For Social Investment Programs Payments For Social Investment Programs PEO Total Compensation Amount PEO Total Compensation Amount General Information [Abstract] General Information [Abstract] Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Credit Derivative, Maximum Exposure, Undiscounted Credit Derivative, Maximum Exposure, Undiscounted Share Repurchase Program [Domain] Share Repurchase Program [Domain] Unusual or Infrequent Item, or Both [Axis] Unusual or Infrequent Item, or Both [Axis] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Common Stock Common Stock [Member] Measure: Measure [Axis] Exercised and issued stock-based awards Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Asset Class [Domain] Asset Class [Domain] North America Copper Mines Segment North America Copper Mines Segment [Member] Information on North America copper mines. Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Line of Credit Line of Credit [Member] Entity Emerging Growth Company Entity Emerging Growth Company Segment Reporting [Abstract] Segment Reporting [Abstract] Entity Central Index Key Entity Central Index Key Scenario [Axis] Scenario [Axis] Short [Member] Short [Member] Charges for PTFI social investment programs Social Investment Programs Social Investment Programs Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Freeport McMoRan Corporation Freeport McMoRan Corporation [Member] Information about the subsidiary Freeport-McMoRan Corporation. Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Equity Component [Domain] Equity Component [Domain] Financial Instrument [Axis] Financial Instrument [Axis] Business Segments Segment Reporting Disclosure [Text Block] Current portion of debt Less current portion of debt Long-Term Debt, Current Maturities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Stock-based compensation, including the tender of shares APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Entity Shell Company Entity Shell Company Measurement Basis [Axis] Measurement Basis [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Title Trading Arrangement, Individual Title Treatment chargesc Treatment And Refining Charges Included In Copper Concentrates Revenues Treatment and refining charges included in copper concentrates revenues. Statement [Table] Statement [Table] Net charges for defined pension and postretirement plans Pension and Other Postretirement Benefits Expense (Reversal of Expense), Noncash Total comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Consolidation Items [Domain] Consolidation Items [Domain] Position [Domain] Position [Domain] City Area Code City Area Code Current liabilities: Liabilities, Current [Abstract] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Capital expenditures Capital expenditures Payments to Acquire Productive Assets Level 1 Fair Value, Inputs, Level 1 [Member] Mud Rush Mud Rush [Member] Mud Rush Total current assets Assets, Current Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Senior Notes Senior Notes [Member] Base cash dividend (in dollars per share) Common Stock, Dividends, Per Share, Base Cash Common Stock, Dividends, Per Share, Base Cash Accrued income taxes and timing of other tax payments Increase (Decrease) in Accrued Taxes Payable Dividends Adjustments to Additional Paid in Capital, Dividends in Excess of Retained Earnings Revolving credit facility, availability Line of Credit Facility, Remaining Borrowing Capacity Treasury stock purchases Payments for Repurchase of Common Stock Summary of Derivative Instruments [Abstract] Summary of Derivative Instruments [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Marketable Securities Marketable Securities Long-term debt, less current portion Long-Term Debt, Excluding Current Maturities Segment Reporting Information By Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Income Taxes Income Tax Disclosure [Text Block] Net income per share attributable to common stockholders: Earnings Per Share [Abstract] Revenue from External Customers by Products and Services Revenue from External Customers by Products and Services [Table Text Block] Equity: Equity [Abstract] Retained earnings Retained Earnings (Accumulated Deficit) Long [Member] Long [Member] Inventories Increase (Decrease) in Inventories General Information General Information [Text Block] Description containing the entire organization, consolidation and basis of presentation of financial statements disclosure. 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Measurement [Member] Entity Registrant Name Entity Registrant Name Debentures Subordinated Debt [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Depreciation, depletion and amortization Depreciation, Depletion and Amortization Unusual or Infrequent Item, or Both [Domain] Unusual or Infrequent Item, or Both [Domain] Fair Value as of Grant Date Award Grant Date Fair Value Level 2 Fair Value, Inputs, Level 2 [Member] Debt and Equity Debt Disclosure [Text Block] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Geographical [Domain] Geographical [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Current portion of environmental and asset retirement 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[Member] Forward Contracts Forward Contracts [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Earnings per share, basic (in dollars per share) Earnings Per Share, Basic Futures and Swaps Futures and Swaps [Member] Futures and Swaps Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Number of Divisions Number of Divisions Number of Divisions Ownership [Domain] Ownership [Domain] Finance lease payments Finance Lease, Principal Payments Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Embedded Derivative Financial Instruments Embedded Derivative Financial Instruments [Member] Net income attributable to common stockholders Net loss attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Total current liabilities Liabilities, Current Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Total assets Total assets Assets Line of credit Long-Term Line of Credit Contributions from noncontrolling interests Noncontrolling Interest, Increase from Subsidiary Equity Issuance Other Other Debt [Member] Other Debt Other liabilities Other Liabilities, Noncurrent Production and delivery Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Termination Date Trading Arrangement Termination Date Collateralized Mortgage Backed Securities Collateralized Mortgage-Backed Securities [Member] Revenues Revenues Export duty to be paid, percent Export Duty to be Paid, Percent Export Duty to be Paid, Percent South America South America [Member] Realized gains (losses): Debt Securities, Held-to-Maturity, Derivative, Cumulative Gain (Loss) [Abstract] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Entity Address, City or Town Entity Address, City or Town Product Product Carrying amount as of the balance sheet date, including unprocessed items to be consumed in the production process; goods which are partially completed, and which require further materials, labor and overhead to be converted into finished goods; and goods held by the company that are readily available for sale. Debt Instrument [Axis] Debt Instrument [Axis] Cerro Verde Cerro Verde [Member] Information about subsidiary Cerro Verde. 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