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FINANCIAL INSTRUMENTS (Derivative) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash and Cash Equivalents [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	$ 20
Cash and cash equivalents	3,923	$ 4,758
Restricted cash and cash equivalents	888	1,208
Restricted Cash and Cash Equivalents, Noncurrent	100	97
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	4,911	6,063	$ 8,390	$ 8,314
Bank Time Deposits
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	100	300
Designated for Smelter Development Projects
Cash and Cash Equivalents [Line Items]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		200
Export Proceeds
Cash and Cash Equivalents [Line Items]
Restricted cash and cash equivalents	700	1,100
Assurance Bonds
Cash and Cash Equivalents [Line Items]
Restricted cash and cash equivalents	$ 100	$ 100