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

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Principal amount of debt extinguished.

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Amount of debt extinguishment related to purchase accounting fair value adjustments.

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- Definition

Amount of borrowing capacity currently available under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility, expressed as a percentage of the maximum borrowing capacity.

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- Definition

Amount of borrowing capacity currently available under the credit facility for letters of credit.

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No definition available.

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- Definition

The percentage of the principal balance that may be redeemed of the outstanding note.

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No definition available.

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- Definition

The fair value of royalty trust units as of a specified date.

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- Definition

Number of royalty trust units issued upon conversion of convertible debt or equity instrument during the period.

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No definition available.

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The term over which a debt agreement is valid.

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No definition available.

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- Definition

Term over which funds may be drawn on a debt agreement.

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No definition available.

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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-Glossary Convertible Security

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Expiration, mandatory redemption, or due date, in CCYY-MM-DD format, of the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction.

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- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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- Definition

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

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No definition available.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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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

Face (par) amount of debt instrument at time of issuance.

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-SubTopic 30

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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DEBT (Details) (USD $)	12 Months Ended			3 Months Ended	121 Months Ended	1 Months Ended	12 Months Ended
DEBT (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Nov. 30, 2014	May 31, 2013	Dec. 31, 2015	Jun. 03, 2013	Feb. 14, 2013	Mar. 07, 2013	Feb. 28, 2012	Feb. 27, 2015
Debt Instruments [Line Items]
Liabilities, Fair Value Adjustment	$ 226,000,000us-gaap_LiabilitiesFairValueAdjustment	$ 653,000,000us-gaap_LiabilitiesFairValueAdjustment
Long-term Debt, Gross	18,970,000,000us-gaap_DebtInstrumentCarryingAmount	20,706,000,000us-gaap_DebtInstrumentCarryingAmount		20,706,000,000us-gaap_DebtInstrumentCarryingAmount
Less current portion of long-term debt and short-term borrownings	(478,000,000)us-gaap_DebtCurrent	(312,000,000)us-gaap_DebtCurrent		(312,000,000)us-gaap_DebtCurrent
Long-term debt	18,492,000,000us-gaap_LongTermDebtNoncurrent	20,394,000,000us-gaap_LongTermDebtNoncurrent		20,394,000,000us-gaap_LongTermDebtNoncurrent
Payments for Repurchase of Preferred Stock and Preference Stock	0	228,000,000	0
Royalty Trust Units Issued, Conversion of Debt or Equity Instrument		17,700,000
Royalty Trust Units, Fair Value Disclosure								31,000,000
Net gain (loss) on early extinguishment of debt	(73,000,000)	35,000,000	168,000,000
Long-term Debt, by Maturity [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	478,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	651,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	1,500,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	3,700,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	662,000,000
Long-term Debt, Maturities, Repayments of Principal after Year Five	11,800,000,000
Bridge Loan [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt		45,000,000
Extinguishment of Debt, Amount		9,500,000,000
Revolving Credit Facility [Member]
Debt Instruments [Line Items]
Letters of Credit Outstanding, Amount	45,000,000
Revolving Credit Facility, Remaining Borrowing Capacity	4,000,000,000
Remaining borrowing capacity available for letters of credit at period end	1,455,000,000
Line of Credit [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	474,000,000
Debt Instrument, Interest Rate, Effective Percentage	1.29%
Bank Term Loan [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	3,050,000,000	4,000,000,000		4,000,000,000
Repayments of Debt					750,000,000
Debt Instrument, Face Amount	4,000,000,000								4,000,000,000
Debt Instrument Maturity Date	May 31, 2018
Debt Instrument, Interest Rate, Effective Percentage	1.67%
Term of Debt Agreement				5 years
Long-term Debt, by Maturity [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Year Two	650,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	200,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	2,200,000,000
Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Face Amount										6,500,000,000
Proceeds from Issuance of Long-term Debt	2,970,000,000	6,400,000,000	2,970,000,000
Net gain (loss) on early extinguishment of debt	77,000,000
Extinguishment of Debt, Principal Amount	4,208,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	364,000,000
Extinguishment of Debt, Amount	4,572,000,000
Other debt (including equipment capital leases and short-term borrowings) [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	115,000,000	158,000,000		158,000,000
Revolving Credit Facility [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Long-term Debt, Gross	0	0		0
Revolving Credit Facility, Maximum Borrowing Capacity	4,000,000,000	3,000,000,000		3,000,000,000
Revolving Credit Facility, Expiration Date	May 31, 2019
Amount of revolving credit facility available to PT Freeport Indonesia	500,000,000
Net gain (loss) on early extinguishment of debt	(4,000,000)
Line of Credit [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross		0		0
1.40% Senior Notes due 2015 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	0	500,000,000		500,000,000
Debt Instrument, Face Amount											500,000,000
Debt Instrument, Interest Rate, Stated Percentage	1.40%										1.40%
Net gain (loss) on early extinguishment of debt	(1,000,000)
Extinguishment of Debt, Principal Amount	500,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	0
Extinguishment of Debt, Amount	500,000,000
2.15% Senior Notes due 2017 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	500,000,000	500,000,000		500,000,000
Debt Instrument, Face Amount											500,000,000
Debt Instrument, Interest Rate, Stated Percentage	2.15%										2.15%
2.30% Senior Notes due 2017 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	749,000,000	0		0
Debt Instrument, Face Amount	750,000,000
Debt Instrument, Interest Rate, Stated Percentage	2.30%
2.375% Senior Notes due March 2018 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	1,500,000,000	1,500,000,000		1,500,000,000
Debt Instrument, Face Amount	1,500,000,000
Debt Instrument, Interest Rate, Stated Percentage	2.375%
3.100% Senior Notes due March 2020 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	1,000,000,000	999,000,000		999,000,000
Debt Instrument, Face Amount	1,000,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.10%
4.00% Senior Notes due 2021 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	598,000,000	0		0
Debt Instrument, Face Amount	600,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.00%
3.55% Senior Notes due 2022 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	1,996,000,000	1,996,000,000		1,996,000,000
Debt Instrument, Face Amount											2,000,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.55%										3.55%
Debt Instrument, Redemption Period, Start Date	Dec. 01, 2021
Redemption to Principal Amount, Percent	100.00%
3.875% Senior Notes due March 2023 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	1,999,000,000	1,999,000,000		1,999,000,000
Debt Instrument, Face Amount	2,000,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.875%
Debt Instrument, Redemption Period, Start Date	Dec. 15, 2022
Redemption to Principal Amount, Percent	100.00%
4.55% Senior Notes due 2024 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	849,000,000	0		0
Debt Instrument, Face Amount	850,000,000
Debt Instrument, Interest Rate, Stated Percentage	4.55%
Debt Instrument, Redemption Period, Start Date	Aug. 14, 2024
Redemption to Principal Amount, Percent	100.00%
5.40% Senior Notes due 2034 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	796,000,000	0		0
Debt Instrument, Face Amount	800,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.40%
Debt Instrument, Redemption Period, Start Date	May 14, 2034
Redemption to Principal Amount, Percent	100.00%
5.450% Senior Notes due March 2043 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	1,991,000,000	1,991,000,000		1,991,000,000
Debt Instrument, Face Amount	2,000,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.45%
Debt Instrument, Redemption Period, Start Date	Sep. 15, 2042
Redemption to Principal Amount, Percent	100.00%
6.125% Senior Notes due 2019 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	(2,000,000)
Extinguishment of Debt, Principal Amount	513,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	40,000,000
Extinguishment of Debt, Amount	553,000,000
8.625% Senior Notes due 2019 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	24,000,000
Extinguishment of Debt, Principal Amount	400,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	41,000,000
Extinguishment of Debt, Amount	441,000,000
7.625% Senior Notes due 2020 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	14,000,000
Extinguishment of Debt, Principal Amount	300,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	32,000,000
Extinguishment of Debt, Amount	332,000,000
6.5% Senior Notes due 2020 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	10,000,000
Extinguishment of Debt, Principal Amount	883,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	79,000,000
Extinguishment of Debt, Amount	962,000,000
6.625% Senior Notes due 2021 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	3,000,000
Extinguishment of Debt, Principal Amount	339,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	31,000,000
Extinguishment of Debt, Amount	370,000,000
6.75% Senior Notes due 2022 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	8,000,000
Extinguishment of Debt, Principal Amount	551,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	57,000,000
Extinguishment of Debt, Amount	608,000,000
6.875% Senior Notes due 2023 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Net gain (loss) on early extinguishment of debt	21,000,000
Extinguishment of Debt, Principal Amount	722,000,000
Extinguishment of Debt, Purchase Accounting Adjustments	84,000,000
Extinguishment of Debt, Amount	806,000,000
7.125% Debentures due 2027 [Member] \| Debentures [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.125%
9.5% Senior Notes due 2031 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.50%
6.125% Senior Notes due 2034 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.125%
8.375% Senior Notes Due 2017 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			8.375%
Redemption to Principal Amount, Percent			104.553%
Net gain (loss) on early extinguishment of debt			168,000,000
Extinguishment of Debt, Amount			3,000,000,000
4% Convertible Senior Notes due 2017 [Member]
Debt Instruments [Line Items]
Convertible Debt, Fair Value Disclosures								306,000,000
Payments for Repurchase of Preferred Stock and Preference Stock		270,000,000
Royalty Trust Units Issued, Conversion of Debt or Equity Instrument		21,000,000
Royalty Trust Units, Fair Value Disclosure								36,000,000
Cerro Verde [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Long-term Debt, Gross	425,000,000	0		0
Revolving Credit Facility, Maximum Borrowing Capacity	1,800,000,000
Revolving Credit Facility, Expiration Date	Mar. 10, 2019
Letters of Credit Outstanding, Amount	0
Remaining borrowing capacity available for letters of credit at period end	500,000,000
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, Basis Spread on Variable Rate	1.90%
Debt Instrument, Interest Rate, Effective Percentage	2.07%
Term of Debt Agreement	5 years
Long-term Debt, by Maturity [Abstract]
Term When Funds Are Available to be Drawn on Debt Agreement	2 years
McMoRan Exploration Co [Member]
Debt Instruments [Line Items]
Liabilities, Fair Value Adjustment		62,000,000
Debt Instrument, Face Amount								558,000,000
McMoRan Exploration Co [Member] \| 11.875% Senior Notes due 2014 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	11.875%
Net gain (loss) on early extinguishment of debt		(10,000,000)
Repayments of Assumed Debt		299,000,000
McMoRan Exploration Co [Member] \| 4% Convertible Senior Notes due 2017 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Plains Exploration & Production Company [Member]
Debt Instruments [Line Items]
Business Acquisition, Effective Date of Acquisition		May 31, 2013
Plains Exploration & Production Company [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Repayments of Assumed Debt		3,900,000,000
Plains Exploration & Production Company [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Liabilities, Fair Value Adjustment						716,000,000
Debt Instrument, Face Amount						6,400,000,000
Plains Exploration & Production Company [Member] \| 6.125% Senior Notes due 2019 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	255,000,000	817,000,000		817,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.125%
Debt Conversion, Converted Instrument, Expiration or Due Date	Jun. 15, 2016
Plains Exploration & Production Company [Member] \| 8.625% Senior Notes due 2019 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	0	447,000,000		447,000,000
Debt Instrument, Interest Rate, Stated Percentage	8.625%
Plains Exploration & Production Company [Member] \| 7.625% Senior Notes due 2020 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	0	336,000,000		336,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.625%
Plains Exploration & Production Company [Member] \| 6.5% Senior Notes due 2020 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	670,000,000	1,647,000,000		1,647,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Debt Conversion, Converted Instrument, Expiration or Due Date	Nov. 15, 2015
Plains Exploration & Production Company [Member] \| 6.625% Senior Notes due 2021 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	284,000,000	659,000,000		659,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.625%
Debt Conversion, Converted Instrument, Expiration or Due Date	May 01, 2016
Plains Exploration & Production Company [Member] \| 6.75% Senior Notes due 2022 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	493,000,000	1,111,000,000		1,111,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.75%
Debt Conversion, Converted Instrument, Expiration or Due Date	Feb. 01, 2017
Plains Exploration & Production Company [Member] \| 6.875% Senior Notes due 2023 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	866,000,000	1,686,000,000		1,686,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.875%
Debt Conversion, Converted Instrument, Expiration or Due Date	Feb. 15, 2018
Plains Exploration & Production Company [Member] \| 7.625% Senior Notes due 2018 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.625%
Repayments of Assumed Debt		415,000,000
Freeport McMoRan Corporation [Member] \| 7.125% Debentures due 2027 [Member] \| Debentures [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	115,000,000	115,000,000		115,000,000
Freeport McMoRan Corporation [Member] \| 9.5% Senior Notes due 2031 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	129,000,000	130,000,000		130,000,000
Freeport McMoRan Corporation [Member] \| 6.125% Senior Notes due 2034 [Member] \| Senior Notes [Member]
Debt Instruments [Line Items]
Long-term Debt, Gross	116,000,000	115,000,000		115,000,000
Option 1 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, Basis Spread on Variable Rate	1.50%
Option 1 [Member] \| Revolving Credit Facility [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, Basis Spread on Variable Rate	1.50%
Option 2 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis	ABR
Debt Instrument, Basis Spread on Variable Rate	0.50%
Option 2 [Member] \| Revolving Credit Facility [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis	ABR
Debt Instrument, Basis Spread on Variable Rate	0.50%
Tranche 1 [Member] \| Cerro Verde [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Revolving Credit Facility, Expiration Date	Sep. 30, 2017
Long-term Debt, by Maturity [Abstract]
Line of Credit Facility, Current Borrowing Capacity, Percentage	85.00%
Tranche 2 [Member] \| Cerro Verde [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Revolving Credit Facility, Expiration Date	Mar. 31, 2018
Long-term Debt, by Maturity [Abstract]
Line of Credit Facility, Current Borrowing Capacity, Percentage	70.00%
Tranche 3 [Member] \| Cerro Verde [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Revolving Credit Facility, Expiration Date	Sep. 30, 2018
Long-term Debt, by Maturity [Abstract]
Line of Credit Facility, Current Borrowing Capacity, Percentage	35.00%
Fourth-Quarter 2014 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Repayments of Debt					100,000,000
2015 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Repayments of Debt					550,000,000
First-Quarter 2016 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Repayments of Debt					100,000,000
Subsequent Event [Member] \| Bank Term Loan [Member]
Long-term Debt, by Maturity [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Year Two												225,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three												269,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four												1,100,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Five												299,000,000
Long-term Debt, Maturities, Repayments of Principal after Year Five												$ 1,200,000,000
Subsequent Event [Member] \| Option 1 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis							LIBOR
Debt Instrument, Basis Spread on Variable Rate							1.75%
Subsequent Event [Member] \| Option 1 [Member] \| Revolving Credit Facility [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis							LIBOR
Debt Instrument, Basis Spread on Variable Rate							1.75%
Subsequent Event [Member] \| Option 2 [Member] \| Bank Term Loan [Member]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis							ABR
Debt Instrument, Basis Spread on Variable Rate							0.75%
Subsequent Event [Member] \| Option 2 [Member] \| Revolving Credit Facility [Member] \| Credit Facility [Domain]
Debt Instruments [Line Items]
Debt Instrument, Description of Variable Rate Basis							ABR
Debt Instrument, Basis Spread on Variable Rate							0.75%