Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenues	$ 4,605	$ 5,709
Cost of sales:
Production and delivery	2,428	2,377
Depreciation, depletion and amortization	267	232
Total cost of sales	2,695	2,609
Selling, general and administrative expenses	104	114
Exploration and research expenses	62	50
Environmental obligations and shutdown costs	10	0
Total costs and expenses	2,871	2,773
Operating income	1,734	2,936
Interest expense, net	(63)	(98)
Losses on early extinguishment of debt	(168)	(7)
Other (expense) income, net	(13)	10
Income before income taxes and equity in affiliated companies' net earnings	1,490	2,841
Provision for income taxes	(491)	(984)
Equity in affiliated companies' net earnings	2	4
Net income	1,001	1,861
Net income attributable to noncontrolling interests	(237)	(362)
Net income attributable to FCX common stockholders	$ 764	$ 1,499
Net income per share attributable to FCX common stockholders:
Basic	$ 0.81	$ 1.58
Diluted	$ 0.80	$ 1.57
Weighted-average common shares outstanding:
Basic	949	946
Diluted	955	955
Dividends declared per share of common stock	$ 0.3125	$ 0.25