BUSINESS SEGMENTS INFORMATION (Product Revenue) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Product revenue [Line Items]
Treatment and refining charges included in copper concentrates revenues	$ (538)	$ (503)	$ (445)
Royalty Expense	(346)	(366)	(330)
Export Duties Expense	(307)	(325)	(218)
Revenue from Contract with Customer, Excluding Assessed Tax	22,703	23,271	22,422
Revenues	22,855	22,780	22,845
Noncontrolling Interest Owners Of South America Mining Operations and Morenci joint venture partners | Affiliated Entity
Product revenue [Line Items]
Revenues	1,400	1,700	1,400
Mitsubishi Materials Corporation | Affiliated Entity
Product revenue [Line Items]
Revenues	2,000	600	400
Indonesia
Product revenue [Line Items]
Revenues	767	3,026	3,132
Indonesia | Disputes
Product revenue [Line Items]
Export Duties Expense	(17)	18
Copper in concentrate
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	7,127	9,650	8,705
Rod and other refined copper products
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,659	3,699	3,369
Purchased Copper [Member]
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	416	481	757
Copper Cathode
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	6,629	5,134	5,900
Gold
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	3,472	3,397	2,580
Molybdenum
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,006	1,416	1,283
Other
Product revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	585	688	821
Derivatives Not Designated as Hedging Instruments | Sales [Member]
Product revenue [Line Items]
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net	$ 152	$ (491)	$ 423