Amount of the revolving credit facility that is available to PT Freeport Indonesia.

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- Definition

Period over which contingent consideration may be paid in a business combination.

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- Definition

Date the debt instrument was entered into, in CCYY-MM-DD format.

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No definition available.

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year, expressed as a percentage of the principal amount.

+ References

No definition available.

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year, expressed as a percentage of the principal amount.

+ References

No definition available.

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year, expressed as a percentage of the principal amount.

+ References

No definition available.

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- Definition

Amount of potential cash payments that could result from the contingent consideration arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph f

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- Definition

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

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No definition available.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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-Publisher FASB

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-Publisher AICPA

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- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

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-Subparagraph (SX 210.12-12.3)

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-Subparagraph (SX 210.12-12C.Column D.2)

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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.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 4

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-Name Regulation S-X (SX)

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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No definition available.

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Period the contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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SUBSEQUENT EVENTS (Details) (USD $)	12 Months Ended	3 Months Ended				3 Months Ended					12 Months Ended	3 Months Ended
SUBSEQUENT EVENTS (Details) (USD $)	Dec. 31, 2012	Mar. 31, 2013 Kokkola Cobalt Chemicals Refinery [Member] Business Acquisiton [Domain]	Jan. 21, 2013 Kokkola Cobalt Chemicals Refinery [Member] Business Acquisiton [Domain]	Jan. 21, 2013 Lundin Mining Corporation [Member] Kokkola Cobalt Chemicals Refinery [Member] Business Acquisiton [Domain]	Jan. 21, 2013 La Generale des Carrieres et des Mines [Member] Kokkola Cobalt Chemicals Refinery [Member] Business Acquisiton [Domain]	Mar. 31, 2013 Bank Term Loan [Member] Issuance of Debt [Member]	Feb. 14, 2013 Bank Term Loan [Member] Issuance of Debt [Member]	Dec. 31, 2012 Bank Term Loan [Member] Issuance of Debt [Member]	Feb. 14, 2013 Bridge Loan [Member] Issuance of Debt [Member]	Dec. 05, 2012 Bridge Loan [Member] Issuance of Debt [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]	Mar. 31, 2013 Revolving Credit Facility [Member] Issuance of Debt [Member]	Feb. 14, 2013 Revolving Credit Facility [Member] Issuance of Debt [Member]
Subsequent Event [Line Items]
Business Acquisition, Date of Acquisition Agreement	Dec. 05, 2012	Jan. 21, 2013
Company's direct ownership percentage			56.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners				24.00%	20.00%
Business Acquisition, Cost of Acquired Entity, Purchase Price			$ 325,000,000
Business Acquisition, Contingent Consideration, Potential Cash Payment			110,000,000
Buisness Combination, Term of Contingent Consideration		3 years
Debt Instrument, Agreement Date						Feb. 14, 2013						Feb. 14, 2013
Debt Instrument, Face Amount							4,000,000,000		5,500,000,000	9,500,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Two, Percent								10.00%
Long-term Debt, Maturities, Repayments of Principal in Year Three, Percent								15.00%
Long-term Debt, Maturities, Repayments of Principal in Year Four, Percent								20.00%
Debt Instrument, Maturity Date, Description						five years from the date of the first borrowing
Debt Instrument, Description of Variable Rate Basis						LIBOR					London Interbank Offered Rate
Debt Instrument, Basis Spread on Variable Rate							1.50%				1.75%
Revolving Credit Facility, Term of Contract												5 years
Revolving Credit Facility, Maximum Borrowing Capacity											1,500,000,000		3,000,000,000
Amount of revolving credit facility available to PT Freeport Indonesia											$ 500,000,000		$ 500,000,000