Business Segments (Unaudited) (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Schedule of Segment Reporting Information By Segment

Financial Information by Business Segments

(In millions)	Mining Operations
	North America Copper Mines								South America								Indonesia				Africa
																											Atlantic			Other											Corporate,
																							Molyb-				Copper			Mining							U.S.				Other
			Other						Cerro		Other												denum		Rod &		Smelting			& Elimi-				Total			Oil & Gas				& Elimi-			FCX
	Morenci		Mines			Total			Verde		Minesa				Total		Grasberg				Tenke		Mines		Refining		& Refining			nations				Mining			Operationsb				nations			Total
Three Months Ended March 31, 2015
Revenues:
Unaffiliated customers	$	106	$	115		$	221		$	248	$	231			$	479	$	621		c	$	382	$	—	$	1,062	$	540		$	348		d	$	3,653		$	500		e	$	—		$	4,153
Intersegment	450		664			1,114			14		(7		)	f	7		(14		)	f	28		113		7		6			(1,261		)		—			—				—			—
Production and delivery	374		569			943			198		147				345		439				235		83		1,063		519			(1,001		)		2,626			283				3			2,912
Depreciation, depletion and amortization	51		82			133			37		38				75		70				73		26		2		10			16				405			530				4			939
Impairment of oil and gas properties	—		—			—			—		—				—		—				—		—		—		—			—				—			3,104				—			3,104
Selling, general and administrative expenses	1		—			1			1		—				1		25				3		—		—		5			6				41			54				59			154
Mining exploration and research expenses	—		3			3			—		—				—		—				—		—		—		—			30				33			—				—			33
Environmental obligations and shutdown costs	—		—			—			—		—				—		—				—		—		—		—			13				13			—				—			13
Net gain on sale of assets	—		(39		)	(39		)	—		—				—		—				—		—		—		—			—				(39		)	—				—			(39		)
Operating income (loss)	130		164			294			26		39				65		73				99		4		4		12			23				574			(3,471		)		(66		)	(2,963		)
Interest expense, net	1		—			1			1		—				1		—				—		—		—		3			40				45			37				64			146
Provision for (benefit from) income taxes	—		—			—			5		19				24		29				26		—		—		—			—				79			—				(774		)	(695		)
Total assets at March 31, 2015	3,802		5,646			9,448			7,991		1,970				9,961		8,882				5,108		2,075		314		809			1,379				37,976			17,887				202			56,065
Capital expenditures	84		23			107			431		14				445		225				39		3		1		4			16				840			1,018				9			1,867
Three Months Ended March 31, 2014
Revenues:
Unaffiliated customers	$	23	$	61		$	84		$	280	$	422			$	702	$	462		c	$	306	$	—	$	1,146	$	588		$	436		d	$	3,724		$	1,261		e	$	—		$	4,985
Intersegment	444		758			1,202			64		132				196		8				21		126		8		5			(1,566		)		—			—				—			—
Production and delivery	283		503			786			165		311				476		383				152		76		1,148		588			(1,183		)		2,426			311				—			2,737
Depreciation, depletion and amortization	34		73			107			36		51				87		48				51		22		2		10			19				346			616				4			966
Selling, general and administrative expenses	—		1			1			1		1				2		21				3		—		—		4			7				38			57				40			135
Mining exploration and research expenses	—		2			2			—		—				—		—				—		—		—		—			28				30			—				—			30
Environmental obligations and shutdown costs	—		—			—			—		—				—		—				—		—		—		—			6				6			—				—			6
Operating income (loss)	150		240			390			142		191				333		18				121		28		4		(9		)	(7		)		878			277				(44		)	1,111
Interest expense, net	1		—			1			—		—				—		—				—		—		—		4			18				23			76				62			161
Provision for income taxes	—		—			—			57		70				127		18				24		—		—		—			—				169			—				188			357
Total assets at March 31, 2014	3,412		5,827			9,239			6,730		4,059				10,789		7,466				4,904		2,101		289		951			1,119				36,858			26,385				489			63,732
Capital expenditures	244		59			303			400		23				423		236				31		19		1		1			10				1,024			579				9			1,612

a. First-quarter 2014 amounts include the results of the Candelaria and Ojos del Salado mining operations, which were sold in November 2014.

b. First-quarter 2014 includes the results from Eagle Ford, which was sold in June 2014.

c. Includes PT-FI’s sales to PT Smelting totaling $350 million in first-quarter2015 and $373 million in first-quarter2014.

d. Includes revenues from FCX's molybdenum sales company, which includes sales of molybdenum produced by the Molybdenum mines and by certain of the North and South America copper mines.

e. Includes net mark-to-market gains (losses) associated with crude oil and natural gas derivative contracts totaling $52 million in first-quarter2015 and $(50) million in first-quarter2014.

f. Amounts include net reductions for provisional pricing adjustments to prior period open sales. There were no intersegment sales from El Abra or Grasberg in first-quarter 2015.