Financial Instruments - Unsettled Derivatives (Details) oz in Thousands, lb in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) lb oz $ / lb $ / oz $ / lb	Jun. 30, 2023 USD ($) $ / lb $ / oz $ / lb	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) lb $ / lb $ / oz $ / lb	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 37	$ 37		$ 37		$ 170
Derivative Liability, Fair Value, Gross Liability	110	110		110		42
Derivative Asset, Fair Value, Gross Liability	9	9		9		0
Derivative Liability, Fair Value, Gross Asset	9	9		9		0
Derivative Asset	28	28		28		170
Derivative Liability	101	101		101		42
Trade accounts receivable [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset	8	8		8		163
Derivative Liability	72	72		72		7
Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset	20	20		20		3
Derivative Liability	29	29		29		34
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset	0	0		0		4
Derivative Liability	0	0		0		0
Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset	0	0		0		0
Derivative Liability	0	0		0		1
Commodity Contract
Derivatives, Fair Value [Line Items]
Matured derivative financial instruments		(5)	$ (12)	3	$ 2
Derivative Asset, Fair Value, Gross Asset	0	0		0		4
Derivative Liability, Fair Value, Gross Liability	11	11		11		3
Derivative Asset	0	0		0		4
Derivative Liability	11	11		11		3
Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	37	37		37		166
Derivative Liability, Fair Value, Gross Liability	99	99		99		39
Derivative Asset, Fair Value, Gross Liability	9	9		9		0
Derivative Liability, Fair Value, Gross Asset	9	9		9		0
Derivative Asset	28	28		28		166
Derivative Liability	90	90		90		39
Designated as Hedging Instrument [Member] | Commodity Contract
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 0	$ 0		$ 0		3
Derivative, Nonmonetary Notional Amount, Mass | lb				88
Derivative, Average Forward Price | $ / lb	3.88	3.88		3.88
Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 37	$ 37		$ 37		166
Derivative Liability, Fair Value, Gross Liability	$ 100	100		100		39
Not Designated as Hedging Instrument | Forward Contracts
Derivatives, Fair Value [Line Items]
Matured derivative financial instruments		$ 1	22	$ (1)	26
Derivative, Nonmonetary Notional Amount, Mass | lb				7
Derivative, Average Forward Price | $ / lb	3.81	3.81		3.81
Future | Not Designated as Hedging Instrument | FMC's Copper Futures and Swap Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 10	$ 10		$ 10		3
Commodity Contract | Not Designated as Hedging Instrument | Forward Contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 0	0		0		$ 1
Copper | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net		$ (169)	(720)	$ 61	(502)
Copper | Short [Member] | Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Derivative Average Market Price | $ / lb	3.78	3.78		3.78
Derivative, Nonmonetary Notional Amount, Mass | lb	587
Derivative, Average Forward Price | $ / lb	3.90	3.90		3.90
Copper | Long [Member] | Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Derivative Average Market Price | $ / lb	3.77	3.77		3.77
Derivative, Nonmonetary Notional Amount, Mass | lb	152
Derivative, Average Forward Price | $ / lb	3.89	3.89		3.89
Gold | Short [Member] | Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments
Derivatives, Fair Value [Line Items]
Derivative Average Market Price | $ / oz	1,919	1,919		1,919
Derivative, Nonmonetary Notional Amount, Mass | oz	165
Derivative, Average Forward Price | $ / oz	1,980	1,980		1,980
gold and other | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net		$ (21)	$ (33)	$ 22	$ (11)