Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net Income	$ 610	$ 894	$ 1,434	$ 1,895
Defined benefit plans:
Amortization of unrecognized amounts included in net periodic benefit costs	5	8	12	15
Adjustment to deferred tax valuation allowance	0	0	0	5
Unrealized gains (losses) on securities arising during the period	1	(1)	0	(1)
Translation adjustments arising during the period	(1)	(1)	(1)	(1)
Other comprehensive income	5	6	11	18
Total comprehensive income	615	900	1,445	1,913
Total comprehensive income attributable to noncontrolling interests	(128)	(185)	(304)	(422)
Total comprehensive income attributable to FCX common stockholders	$ 487	$ 715	$ 1,141	$ 1,491