FINANCIAL INSTRUMENTS (Unsettled Derivatives) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 80	$ 170
Derivative Liability, Fair Value, Gross Liability	24	42
Derivative Asset	80	170
Derivative Liability	24	42
Trade accounts receivable
Derivatives, Fair Value [Line Items]
Derivative Asset	76	163
Derivative Liability	$ 2	$ 7
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	$ 4	$ 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	$ 0	$ 3
Derivative Liability	$ 22	$ 34
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	$ 0	$ 1
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	$ 4	$ 4
Derivative Liability	1	3
Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset	76	166
Derivative Liability	23	39
Designated as Hedging Instrument [Member] | Copper derivatives
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	4	3
Derivatives Not Designated as Hedging Instruments | Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	76	166
Derivative Liability, Fair Value, Gross Liability	23	39
Future [Member] | Designated as Hedging Instrument [Member] | FMC's Copper Futures and Swap Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	0	3
Copper derivatives | Derivatives Not Designated as Hedging Instruments | Forward Contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	1
Derivative Liability, Fair Value, Gross Liability	$ 1	$ 0