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Financial Instruments (Unsettled Derivatives) (Details) oz in Thousands, lb in Millions, $ in Millions |  | 3 Months Ended |
--- | --- | --- | ---
Mar. 31, 2022 USD ($) oz lb $ / oz $ / lb $ / lb | Mar. 31, 2022 USD ($) $ / oz $ / lb $ / lb | Mar. 31, 2021 USD ($) | Dec. 31, 2021 USD ($)
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 195 | $ 195 |  | $ 77
Derivative Liability, Fair Value, Gross Liability | 22 | 22 |  | 28
Derivative Asset, Fair Value, Gross Liability | 4 | 4 |  | 4
Derivative Liability, Fair Value, Gross Asset | 4 | 4 |  | 4
Derivative Asset | 191 | 191 |  | 73
Derivative Liability | 18 | 18 |  | 24
Trade accounts receivable [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset | 165 | 165 |  | 51
Derivative Liability | 8 | 8 |  | 14
Accounts Payable and Accrued Liabilities |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset | 2 | 2 |  | 10
Derivative Liability | 10 | 10 |  | 10
Other Current Assets [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset | 23 | 23 |  | 12
Derivative Liability | 0 | 0 |  | 0
Other Assets |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset | 1 | 1 |  | 0
Derivative Liability | 0 | 0 |  | 0
Commodity Contract |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Matured derivative financial instruments |  | 14 | $ 24 |
Derivative Asset, Fair Value, Gross Asset | 26 | 26 |  | 13
Derivative Liability, Fair Value, Gross Liability | 2 | 2 |  | 1
Derivative Asset, Fair Value, Gross Liability | 2 | 2 |  | 1
Derivative Liability, Fair Value, Gross Asset | 2 | 2 |  | 1
Derivative Asset | 24 | 24 |  | 12
Derivative Liability | 0 | 0 |  | 0
Embedded Derivative Financial Instruments |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset, Fair Value, Gross Asset | 169 | 169 |  | 64
Derivative Liability, Fair Value, Gross Liability | 20 | 20 |  | 27
Derivative Asset, Fair Value, Gross Liability | 2 | 2 |  | 3
Derivative Liability, Fair Value, Gross Asset | 2 | 2 |  | 3
Derivative Asset | 167 | 167 |  | 61
Derivative Liability | 18 | 18 |  | 24
Designated as Hedging Instrument [Member] | Commodity Contract |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 24 | $ 24 |  | 12
Derivative, Nonmonetary Notional Amount, Mass | lb | 84 |  |  |
Derivative, Average Forward Price | $ / lb | 4.47 | 4.47 |  |
Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 169 | $ 169 |  | 64
Derivative Liability, Fair Value, Gross Liability | $ 20 | $ 20 |  | 27
Not Designated as Hedging Instrument [Member] | Forward Contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 4 |  |  |
Derivative, Average Forward Price | $ / lb | 4.60 | 4.60 |  |
Commodity Contract | Not Designated as Hedging Instrument [Member] | Forward Contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 2 | $ 2 |  | 1
Derivative Liability, Fair Value, Gross Liability | $ 2 | $ 2 |  | $ 1
Copper | Short [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Average Market Price | $ / lb | 4.71 | 4.71 |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 753 |  |  |
Derivative, Average Forward Price | $ / lb | 4.49 | 4.49 |  |
Copper | Long [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Average Market Price | $ / lb | 4.71 | 4.71 |  |
Derivative, Nonmonetary Notional Amount, Mass | lb | 65 |  |  |
Derivative, Average Forward Price | $ / lb | 4.43 | 4.43 |  |
Gold | Short [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Derivative Average Market Price | $ / oz | 1,936 | 1,936 |  |
Derivative, Nonmonetary Notional Amount, Mass | oz | 206 |  |  |
Derivative, Average Forward Price | $ / oz | 1,925 | 1,925 |  |
Sales [Member] | Not Designated as Hedging Instrument [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | $ 240 | 179 |
Sales [Member] | Copper | Not Designated as Hedging Instrument [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | 218 | 207 |
Sales [Member] | gold and other | Not Designated as Hedging Instrument [Member] |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net |  | 22 | (28) |
Cost of Sales [Member] | Not Designated as Hedging Instrument [Member] | Forward Contracts |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Matured derivative financial instruments |  | $ 4 | $ (8) |

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