FINANCIAL INSTRUMENTS (Unsettled Derivatives) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 20	$ 80
Total derivative liabilities	89	24
Derivative Asset	20	80
Derivative Liability	89	24
Trade accounts receivable
Derivatives, Fair Value [Line Items]
Derivative Asset	0	76
Derivative Liability	$ 53	$ 2
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Trade accounts receivable	Trade accounts receivable
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Trade accounts receivable	Trade accounts receivable
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 10	$ 4
Derivative Liability	$ 0	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other current assets	Other current assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other current assets	Other current assets
Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 10	$ 0
Derivative Liability	$ 35	$ 22
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities
Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 0	$ 0
Derivative Liability	$ 1	$ 0
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Copper derivatives
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 10	$ 4
Derivative Liability	29	1
Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Derivative Asset	10	76
Derivative Liability	60	23
Designated as Hedging Instrument | Copper derivatives
Derivatives, Fair Value [Line Items]
Total derivative assets	0	4
Derivatives Not Designated as Hedging Instruments | Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Total derivative assets	10	76
Total derivative liabilities	60	23
Copper derivatives | Derivatives Not Designated as Hedging Instruments | Forward Contracts
Derivatives, Fair Value [Line Items]
Total derivative assets	10	0
Total derivative liabilities	1	1
Future | Designated as Hedging Instrument | FMC's Copper Futures and Swap Contracts [Member]
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ 28	$ 0