General Information (Unaudited)	3 Months Ended
Mar. 31, 2014
General Information [Abstract]
General Information	GENERAL INFORMATION The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all information and disclosures required by generally accepted accounting principles (GAAP) in the United States (U.S.). Therefore, this information should be read in conjunction with Freeport-McMoRan Copper & Gold Inc.’s (FCX) consolidated financial statements and notes contained in its annual report on Form 10-K for the year ended December 31, 2013. The information furnished herein reflects all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods reported. All such adjustments are, in the opinion of management, of a normal recurring nature. Operating results for the three-month period ended March 31, 2014, are not necessarily indicative of the results that may be expected for the year ending December 31, 2014. As further discussed in Note 2, FCX completed its acquisitions of Plains Exploration & Production Company (PXP) on May 31, 2013, and McMoRan Exploration Co. (MMR) on June 3, 2013, collectively known as FCX Oil & Gas Inc. (FM O&G). The results included in these financial statements for the three months ended March 31, 2013, do not include PXP's or MMR's results.

GENERAL INFORMATION

The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and do not include all information and disclosures required by generally accepted accounting principles (GAAP) in the United States (U.S.). Therefore, this information should be read in conjunction with Freeport-McMoRan Copper & Gold Inc.’s (FCX) consolidated financial statements and notes contained in its annual report on Form 10-K for the year ended December 31, 2013. The information furnished herein reflects all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods reported. All such adjustments are, in the opinion of management, of a normal recurring nature. Operating results for the three-month period ended March 31, 2014, are not necessarily indicative of the results that may be expected for the year ending December 31, 2014.

As further discussed in Note 2, FCX completed its acquisitions of Plains Exploration & Production Company (PXP) on May 31, 2013, and McMoRan Exploration Co. (MMR) on June 3, 2013, collectively known as FCX Oil & Gas Inc. (FM O&G). The results included in these financial statements for the three months ended March 31, 2013, do not include PXP's or MMR's results.