Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues	$ 6,165	$ 4,417	$ 15,036	$ 13,497
Cost of sales:
Production and delivery	3,332	2,592	8,904	7,642
Depreciation, depletion and amortization	919	298	1,778	856
Total cost of sales	4,251	2,890	10,682	8,498
Selling, general and administrative expenses	158	110	457	311
Mining exploration and research expenses	57	79	173	214
Environmental obligations and shutdown costs	(8)	(73)	23	18
Total costs and expenses	4,458	3,006	11,335	9,041
Operating income	1,707	1,411	3,701	4,456
Interest expense, net	(162)	(42)	(351)	(148)
Losses on early extinguishment of debt	0	0	(45)	(168)
Gain on investment in McMoRan Exploration Co.	0	0	128	0
Other income (expense), net	3	(15)	13	23
Income before income taxes and equity in affiliated companies' net earnings (losses)	1,548	1,354	3,446	4,163
Provision for income taxes	(499)	(215)	(967)	(1,128)
Equity in affiliated companies’ net earnings (losses)	(1)	1	3	0
Net income	1,048	1,140	2,482	3,035
Net income and preferred dividends attributable to noncontrolling interests	(227)	(316)	(531)	(737)
Net income attributable to FCX common stockholders	$ 821	$ 824	$ 1,951	$ 2,298
Net income per share attributable to FCX common stockholders:
Basic	$ 0.79	$ 0.87	$ 1.97	$ 2.42
Diluted	$ 0.79	$ 0.86	$ 1.96	$ 2.41
Weighted-average common shares outstanding:
Basic	1,038	949	989	949
Diluted	1,043	953	993	953
Dividends declared per share of common stock	$ 0.3125	$ 0.3125	$ 1.9375	$ 0.9375