SUPPLEMENTARY OIL AND GAS INFORMATION (UNAUDITED) (Schedule of Results of Operations for Oil and Gas Producing Activities) (Details) (USD $) In Millions, unless otherwise specified	7 Months Ended
	Dec. 31, 2013
Supplemental Oil and Gas Information [Abstract]
Revenues from oil and gas producing activities	$ 2,616
Production and delivery costs	(682)
Depreciation, depletion and amortization	(1,358)
Income tax expense (based on FCX's statutory tax rate)	(219)
Results of operations from oil and gas producing activities (excluding general and administrative expenses, interest expense and interest income)	$ 357