CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Cash flow from operating activities:
Net (loss) income	$ (745,000,000)	[1],[2]	$ 3,441,000,000	[3]	$ 3,980,000,000
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation, depletion and amortization	3,863,000,000		2,797,000,000		1,179,000,000
Impairment of oil and gas properties and goodwill	5,454,000,000		0		0
Net (gains) losses on crude oil and natural gas derivative contracts	(504,000,000)		334,000,000		0
Gain on investment in McMoRan Exploration Co. (MMR)	0		(128,000,000)		0
Stock-based compensation	106,000,000		173,000,000		100,000,000
Net charges for environmental and asset retirement obligations, including accretion	200,000,000		164,000,000		22,000,000
Payments for environmental and asset retirement obligations	(176,000,000)		(237,000,000)		(246,000,000)
Net (gain) loss on early extinguishment of debt	(73,000,000)		35,000,000		168,000,000
Net gain on sales of assets	717,000,000		0		0
Deferred income taxes	(929,000,000)		277,000,000		269,000,000
Increase in long-term mill and leach stockpiles	(233,000,000)		(431,000,000)		(269,000,000)
Other, net	17,000,000		91,000,000		(12,000,000)
Decreases (increases) in working capital and changes in other tax payments, excluding amounts from acquisitions and dispositions:
Accounts receivable	215,000,000		49,000,000		(365,000,000)
Inventories	(249,000,000)		(288,000,000)		(729,000,000)
Other current assets	0		26,000,000		(76,000,000)
Accounts payable and accrued liabilities	(394,000,000)		(359,000,000)		209,000,000
Accrued income taxes and changes in other tax payments	(204,000,000)		195,000,000		(456,000,000)
Net cash provided by operating activities	5,631,000,000		6,139,000,000		3,774,000,000
Capital expenditures:
North America copper mines	(969,000,000)		(1,066,000,000)		(825,000,000)
South America	(1,785,000,000)		(1,145,000,000)		(931,000,000)
Indonesia	(948,000,000)		(1,030,000,000)		(843,000,000)
Africa	(159,000,000)		(205,000,000)		(539,000,000)
Molybdenum mines	(54,000,000)		(164,000,000)		(245,000,000)
U.S. oil and gas operations	(3,205,000,000)		(1,436,000,000)		0
Other	(95,000,000)		(240,000,000)		(111,000,000)
Acquisition of Deepwater Gulf of Mexico interests	(1,426,000,000)		0		0
Acquisition of Plains Exploration & Production Company, net of cash acquired	0		(3,465,000,000)		0
Acquisition of MMR, net of cash acquired	0		(1,628,000,000)		0
Acquisition of cobalt chemical business, net of cash acquired	0		(348,000,000)		0
Net proceeds from sale of Candelaria and Ojos del Salado	1,709,000,000		0		0
Net proceeds from sale of Eagle Ford shale assets	2,910,000,000		0		0
Other, net	221,000,000		(181,000,000)		31,000,000
Net cash used in investing activities	(3,801,000,000)		(10,908,000,000)		(3,463,000,000)
Cash flow from financing activities:
Proceeds from debt	8,710,000,000		11,501,000,000		3,029,000,000
Repayments of debt	(10,306,000,000)		(5,476,000,000)		(3,186,000,000)
Redemption of MMR preferred stock	0		(228,000,000)		0
Cash dividends and distributions paid:
Common stock	(1,305,000,000)		(2,281,000,000)		(1,129,000,000)
Noncontrolling interests	(424,000,000)		(256,000,000)		(113,000,000)
Stock-based awards net proceeds (payments), including excess tax benefit	9,000,000		(98,000,000)		7,000,000
Debt financing costs and other, net	(35,000,000)		(113,000,000)		(36,000,000)
Net cash (used in) provided by financing activities	(3,351,000,000)		3,049,000,000		(1,428,000,000)
Net decrease in cash and cash equivalents	(1,521,000,000)		(1,720,000,000)		(1,117,000,000)
Cash and cash equivalents at beginning of year	1,985,000,000		3,705,000,000		4,822,000,000
Cash and cash equivalents at end of year	$ 464,000,000		$ 1,985,000,000		$ 3,705,000,000

[1] Includes a tax charge of $57 million ($0.06 per share) in the second quarter, $5 million in the third quarter, $22 million ($0.02 per share) in the fourth quarter and $84 million ($0.08 per share) for the year associated with deferred taxes recorded in connection with the allocation of goodwill to the sale of the Eagle Ford properties. Additionally, includes a net tax charge (benefit) of $54 million ($7 million attributable to noncontrolling interests and $47 million to net income attributable to common stockholders or $0.04 per share) in the third quarter, $(17) million ($11 million attributable to noncontrolling interests and $(28) million to net loss attributable to common stockholders or $(0.03) per share) in the fourth quarter and $37 million ($18 million attributable to noncontrolling interests and $19 million to net loss attributable to common stockholders or $0.02 per share) for the year associated with changes in Chilean tax rules, U.S. federal income tax regulations and Peruvian tax rules, partially offset by a tax benefit related to changes in U.S. state income tax filing positions.

[2] Includes net gains (losses) on early extinguishment of debt totaling $4 million in the second quarter, $17 million ($0.02 per share) in the third quarter, $(18) million ($(0.02) per share) in the fourth quarter and $3 million for the year. Refer to Note 8 for further discussion.

[3] Includes a net tax benefit of $183 million ($0.19 per share) in the second quarter, $16 million ($0.01 per share) in the fourth quarter and $199 million ($0.20 per share) for the year associated with net reductions in FCX's deferred tax liabilities and deferred tax asset valuation allowances related to the acquisitions of PXP and MMR.