Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues	$ 4,583	$ 4,605
Cost of sales:
Production and delivery	2,719	2,428
Depreciation, depletion and amortization	329	267
Total cost of sales	3,048	2,695
Selling, general and administrative expenses	113	104
Exploration and research expenses	52	62
Environmental obligations and shutdown costs	15	10
Total costs and expenses	3,228	2,871
Operating income	1,355	1,734
Interest expense, net	(57)	(63)
Losses on early extinguishment of debt	(45)	(168)
Other expense, net	(3)	(13)
Income before income taxes and equity in affiliated companies' net earnings	1,250	1,490
Provision for income taxes	(428)	(491)
Equity in affiliated companies' net earnings	2	2
Net income	824	1,001
Net income attributable to noncontrolling interests	(176)	(237)
Net income attributable to FCX common stockholders	$ 648	$ 764
Net income per share attributable to FCX common stockholders:
Basic	$ 0.68	$ 0.81
Diluted	$ 0.68	$ 0.80
Weighted-average common shares outstanding:
Basic	950	949
Diluted	953	955
Dividends declared per share of common stock	$ 0.3125	$ 0.3125