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Subsequent Events (Unaudited)	6 Months Ended
	Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On July 31, 2017, FM O&G sold certain property interests in the Gulf of Mexico Shelf for cash consideration of $62 million, before closing adjustments. The transaction has an effective date of April 1, 2017, and is expected to result in a gain in third-quarter 2017 under the full cost accounting rules. FCX evaluated events after June 30, 2017, and through the date the consolidated financial statements were issued, and determined any events or transactions occurring during this period that would require recognition or disclosure are appropriately addressed in these consolidated financial statements.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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