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Financial Instruments - Unrealized gains losses (Details) oz in Thousands, lb in Millions, $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 30, 2023 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 ($)
Not Designated as Hedging Instrument | Amounts recorded in Sales |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (190) | $ (753) | $ 83 | $ (513)
Commodity Contract |  |  |  |  |
Unrealized gains (losses): |  |  |  |  |
Derivative financial instruments |  | (25) | (89) | (11) | (78)
Hedged item – firm sales commitments |  | 25 | 89 | 11 | 78
Realized gains (losses): |  |  |  |  |
Matured derivative financial instruments |  | $ (5) | (12) | $ 3 | 2
Commodity Contract | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb |  |  |  | 88 |
Derivative, Average Forward Price | $ / lb | 3.88 | 3.88 |  | 3.88 |
Copper Forward Contracts | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb |  |  |  | 7 |
Derivative, Average Forward Price | $ / lb | 3.81 | 3.81 |  | 3.81 |
Realized gains (losses): |  |  |  |  |
Matured derivative financial instruments |  | $ 1 | 22 | $ (1) | 26
Copper | Not Designated as Hedging Instrument |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (169) | (720) | $ 61 | (502)
Copper | Short [Member] | Embedded Derivative Financial Instruments | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 587 |  |  |  |
Derivative, Average Forward Price | $ / lb | 3.90 | 3.90 |  | 3.90 |
Realized gains (losses): |  |  |  |  |
Derivative Average Market Price | $ / lb | 3.78 | 3.78 |  | 3.78 |
Copper | Long [Member] | Embedded Derivative Financial Instruments | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 152 |  |  |  |
Derivative, Average Forward Price | $ / lb | 3.89 | 3.89 |  | 3.89 |
Realized gains (losses): |  |  |  |  |
Derivative Average Market Price | $ / lb | 3.77 | 3.77 |  | 3.77 |
Gold | Short [Member] | Embedded Derivative Financial Instruments | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | oz | 165 |  |  |  |
Derivative, Average Forward Price | $ / oz | 1,980 | 1,980 |  | 1,980 |
Realized gains (losses): |  |  |  |  |
Derivative Average Market Price | $ / oz | 1,919 | 1,919 |  | 1,919 |
gold and other | Not Designated as Hedging Instrument |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (21) | $ (33) | $ 22 | $ (11)

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