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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, 2022 lb oz $ / lb $ / oz $ / lb | Jun. 30, 2022 USD ($) $ / lb $ / oz $ / lb | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) $ / lb $ / oz $ / lb | Jun. 30, 2021 USD ($)
Not Designated as Hedging Instrument | Amounts recorded in Sales |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (753) | $ 133 | $ (513) | $ 312
Commodity Contract |  |  |  |  |
Unrealized gains (losses): |  |  |  |  |
Derivative financial instruments |  | (89) | (11) | (78) | (8)
Hedged item – firm sales commitments |  | 89 | 11 | 78 | 8
Realized gains (losses): |  |  |  |  |
Matured derivative financial instruments |  | $ (12) | 28 | $ 2 | 52
Commodity Contract | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 103 |  |  |  |
Derivative, Average Forward Price | $ / lb | 4.36 | 4.36 |  | 4.36 |
Copper Forward Contracts | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 34 |  |  |  |
Derivative, Average Forward Price | $ / lb | 4.06 | 4.06 |  | 4.06 |
Copper Forward Contracts | Not Designated as Hedging Instrument | Amounts recorded in Cost of Sales |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Matured derivative financial instruments |  | $ 22 | (5) | $ 26 | (13)
Copper | Not Designated as Hedging Instrument | Amounts recorded in Sales |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (720) | 118 | $ (502) | 325
Copper | Short [Member] | Embedded Derivative Financial Instruments | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 703 |  |  |  |
Derivative, Average Forward Price | $ / lb | 4.41 | 4.41 |  | 4.41 |
Realized gains (losses): |  |  |  |  |
Derivative Average Market Price | $ / lb | 3.75 | 3.75 |  | 3.75 |
Copper | Long [Member] | Embedded Derivative Financial Instruments | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 59 |  |  |  |
Derivative, Average Forward Price | $ / lb | 4.39 | 4.39 |  | 4.39 |
Realized gains (losses): |  |  |  |  |
Derivative Average Market Price | $ / lb | 3.75 | 3.75 |  | 3.75 |
Gold | Short [Member] | Embedded Derivative Financial Instruments | Not Designated as Hedging Instrument |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | oz | 236 |  |  |  |
Derivative, Average Forward Price | $ / oz | 1,848 | 1,848 |  | 1,848 |
Realized gains (losses): |  |  |  |  |
Derivative Average Market Price | $ / oz | 1,821 | 1,821 |  | 1,821 |
gold and other | Not Designated as Hedging Instrument | Amounts recorded in Sales |  |  |  |  |
Realized gains (losses): |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ (33) | $ 15 | $ (11) | $ (13)

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