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Financial Instruments - Unsettled Derivatives (Details) oz in Thousands, lb in Millions, $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2022 USD ($) lb oz $ / oz $ / lb $ / lb | Sep. 30, 2022 USD ($) $ / oz $ / lb $ / lb | Sep. 30, 2021 USD ($) | Sep. 30, 2022 USD ($) $ / oz $ / lb $ / lb | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 68 | $ 68 |  | $ 68 |  | $ 77
Derivative Liability, Fair Value, Gross Liability | 272 | 272 |  | 272 |  | 28
Derivative Asset, Fair Value, Gross Liability | 6 | 6 |  | 6 |  | 4
Derivative Liability, Fair Value, Gross Asset | 6 | 6 |  | 6 |  | 4
Derivative Asset | 62 | 62 |  | 62 |  | 73
Derivative Liability | 266 | 266 |  | 266 |  | 24
Trade accounts receivable [Member] |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset | 29 | 29 |  | 29 |  | 51
Derivative Liability | 94 | 94 |  | 94 |  | 14
Accounts Payable and Accrued Liabilities |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset | 33 | 33 |  | 33 |  | 10
Derivative Liability | 169 | 169 |  | 169 |  | 10
Other Current Assets [Member] |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset | 0 | 0 |  | 0 |  | 12
Derivative Liability | 0 | 0 |  | 0 |  | 0
Other Liabilities |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset | 0 | 0 |  | 0 |  | 0
Derivative Liability | 3 | 3 |  | 3 |  | 0
Commodity Contract |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Matured derivative financial instruments |  | (50) | $ 5 | (48) | $ 57 |
Derivative Asset, Fair Value, Gross Asset | 0 | 0 |  | 0 |  | 13
Derivative Liability, Fair Value, Gross Liability | 50 | 50 |  | 50 |  | 1
Derivative Asset, Fair Value, Gross Liability | 0 | 0 |  | 0 |  | 1
Derivative Liability, Fair Value, Gross Asset | 0 | 0 |  | 0 |  | 1
Derivative Asset | 0 | 0 |  | 0 |  | 12
Derivative Liability | 50 | 50 |  | 50 |  | 0
Embedded Derivative Financial Instruments |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset | 68 | 68 |  | 68 |  | 64
Derivative Liability, Fair Value, Gross Liability | 222 | 222 |  | 222 |  | 27
Derivative Asset, Fair Value, Gross Liability | 6 | 6 |  | 6 |  | 3
Derivative Liability, Fair Value, Gross Asset | 6 | 6 |  | 6 |  | 3
Derivative Asset | 62 | 62 |  | 62 |  | 61
Derivative Liability | 216 | 216 |  | 216 |  | 24
Designated as Hedging Instrument [Member] | Commodity Contract |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 0 | $ 0 |  | $ 0 |  | 12
Derivative, Nonmonetary Notional Amount, Mass | lb | 96 |  |  |  |  |
Derivative, Average Forward Price | $ / lb | 3.93 | 3.93 |  | 3.93 |  |
Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 68 | $ 68 |  | $ 68 |  | 64
Derivative Liability, Fair Value, Gross Liability | $ 222 | $ 222 |  | $ 222 |  | 27
Not Designated as Hedging Instrument | Forward Contracts |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 10 |  |  |  |  |
Derivative, Average Forward Price | $ / lb | 3.51 | 3.51 |  | 3.51 |  |
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 | $ 49 | $ 49 |  | $ 49 |  | 0
Commodity Contract | Not Designated as Hedging Instrument | Forward Contracts |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset | 0 | 0 |  | 0 |  | 1
Derivative Liability, Fair Value, Gross Liability | $ 1 | $ 1 |  | $ 1 |  | $ 1
Copper | Short [Member] | Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Average Market Price | $ / lb | 3.45 | 3.45 |  | 3.45 |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 829 |  |  |  |  |
Derivative, Average Forward Price | $ / lb | 3.68 | 3.68 |  | 3.68 |  |
Copper | Long [Member] | Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Average Market Price | $ / lb | 3.47 | 3.47 |  | 3.47 |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 153 |  |  |  |  |
Derivative, Average Forward Price | $ / lb | 3.77 | 3.77 |  | 3.77 |  |
Gold | Short [Member] | Not Designated as Hedging Instrument | Embedded Derivative Financial Instruments |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Average Market Price | $ / oz | 1,679 | 1,679 |  | 1,679 |  |
Derivative, Nonmonetary Notional Amount, Mass | oz | 281 |  |  |  |  |
Derivative, Average Forward Price | $ / oz | 1,725 | 1,725 |  | 1,725 |  |
Sales | Not Designated as Hedging Instrument |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (306) | (111) | $ (819) | 201 |
Sales | Copper | Not Designated as Hedging Instrument |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | (272) | (102) | (774) | 223 |
Sales | gold and other | Not Designated as Hedging Instrument |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | (34) | (9) | (45) | (22) |
Cost of Sales [Member] | Not Designated as Hedging Instrument | Forward Contracts |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Matured derivative financial instruments |  | $ 5 | $ 1 | $ 31 | $ (12) |

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