Business Segments (Unaudited) (Tables)

3 Months Ended

Mar. 31, 2016

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
									Cerro														denum			Rod &		Smelting		& Elimi-				Total			Oil & Gas				& Elimi-				FCX
	Morenci		Other			Total			Verde		Other				Total		Grasberg				Tenke		Mines			Refining		& Refining		nations				Mining			Operations				nations				Total
Three Months Ended March 31, 2016
Revenues:
Unaffiliated customers	$	162	$	56		$	218		$	486	$	144			$	630	$	498		a	$	286	$	—		$	971	$	422	$	207		b	$	3,232		$	295			$	—			$	3,527
Intersegment	357		561			918			41		—				41		58				31		45			8		1		(1,102		)		—			—				—				—
Production and delivery	340		448			788			291		119				410		394				226		52			970		393		(918		)		2,315			407			c	3				2,725
Depreciation, depletion and amortization	62		82			144			101		31				132		81				60		19			2		8		18				464			255				3				722
Impairment of oil and gas properties	—		—			—			—		—				—		—				—		—			—		—		—				—			3,771				16			d	3,787
Selling, general and administrative expenses	—		1			1			2		—				2		14				2		—			—		4		4				27			49				64				140
Mining exploration and research expenses	—		1			1			—		—				—		—				—		—			—		—		18				19			—				—				19
Environmental obligations and shutdown costs	—		—			—			—		—				—		—				—		—			—		—		10				10			—				—				10
Operating income (loss)	117		85			202			133		(6		)		127		67				29		(26		)	7		18		(27		)		397			(4,187		)		(86		)		(3,876		)
Interest expense, net	1		—			1			22		—				22		—				—		—			—		4		20				47			71				82				200
Provision for (benefit from) income taxes	—		—			—			45		(6		)		39		36				3		—			—		—		—				78			—				(8		)		70
Total assets at March 31, 2016	3,490		4,751			8,241			9,495		1,623				11,118		9,354				5,088		1,983			236		653		1,292				37,965			4,360				339				42,664
Capital expenditures	28		6			34			156		1				157		225				35		1			1		2		4				459			480			e	43				982
Three Months Ended March 31, 2015
Revenues:
Unaffiliated customers	$	106	$	115		$	221		$	248	$	231			$	479	$	621		a	$	382	$	—		$	1,062	$	540	$	348		b	$	3,653		$	500		f	$	—			$	4,153
Intersegment	450		664			1,114			14		(7		)	g	7		(14		)	g	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			c	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		10				834			1,018			e	15				1,867

a. Includes PT-FI’s sales to PT Smelting totaling $277 million in first-quarter2016 and $350 million in first-quarter2015.

b. 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.

c. Includes charges at oil and gas operations totaling (i) $165 million in first-quarter2016 and $13 million in first-quarter2015 for idle rig costs and (ii) $35 million in first-quarter2016 and $4 million in first-quarter2015 primarily for inventory write downs.

d. Reflects impairment charges for international oil and gas properties primarily in Morocco.

e. Excludes international oil and gas capital expenditures totaling $43 million in first-quarter2016 and $15 million in first-quarter2015, primarily related to the Morocco oil and gas properties, which are included in corporate, other & eliminations.

f. Includes net mark-to-market gains of $52 million associated with crude oil derivative contracts.

g. Reflects net reductions for provisional pricing adjustments to prior period open sales.