CONTINGENCIES (Oil and Gas Properties) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) well platform	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Loss Contingencies [Line Items]
ARO, noncurrent	$ 3,001	$ 3,043	$ 2,716	$ 2,472
Freeport-McMoRan Oil & Gas
Loss Contingencies [Line Items]
Adjustment in ARO	$ 91
Number of productive oil wells | well	115
Number of platforms and other structures | platform	130
ARO, noncurrent	$ 391