DISPOSITIONS AND ACQUISITIONS (Timok) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sales of assets	$ 108	$ 247	$ 704
Disposed of by Sale, Discontinued Operations | Timok, Lower Zone [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divestiture of Businesses, Deferred Payments Receivable				$ 150
Divestiture of Businesses, Deferred Payments Receivable, Demand Amount				60
Disposed of by Sale, Discontinued Operations | Timok, Upper Zone [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divestiture of Businesses, Contingent Consideration				$ 107
Proceeds from sales of assets	$ 12	$ 50	$ 45