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CONTINGENCIES (Royalty Dispute Schedule) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended | 27 Months Ended | 36 Months Ended | 57 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2013 | Dec. 31, 2019 | Sep. 01, 2011
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Production and delivery |  | $ 10,031 | $ 11,534 | $ 11,708 |  |  |  |
Interest expense, net |  | 598 | 620 | 945 |  |  |  |
Provision for (benefit from) income taxes |  | (944) | (510) | (991) |  |  |  |
Net income from continuing operations attributable to noncontrolling interests |  | $ (266) | (50) | (292) |  |  |  |
Disputed Royalty Assessments |  |  |  |  |  | $ 69 |  | $ 175
Royalty Related Gains |  |  |  | 16 |  |  |  |
Royalties, Pre-tax Gains |  |  |  | 14 |  |  |  |
Royalties, Related Tax Benefits |  |  |  | 17 |  |  |  |
Royalties, Tax Benefits Attributable to Non-controlling Interests |  |  |  | 15 |  |  |  |
Disputed Royalty Assessments, Tax Expenses |  |  |  |  |  | 136 |  |
Disputed Royalty Assessments, Mining Related Tax Expenses |  |  |  |  |  | $ 67 |  |
Disputed Royalty Assessment, Prior Tax Benefit | $ 129 |  |  |  |  |  |  |
Cerro Verde | Cerro Verde Royalty Dispute | Royalty Assessments |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Production and delivery |  |  | 6 | 14 | $ 203 |  | $ 223 |
Interest expense, net |  |  | 10 | 370 | 145 |  | 525 |
Other expense |  |  | 0 | 22 | 0 |  | 22 |
Provision for (benefit from) income taxes |  |  | 2 | 35 | (7) |  | 30 |
Net income from continuing operations attributable to noncontrolling interests |  |  | 7 | 176 | 169 |  | 352 |
Loss contingency, loss In period, attributable to parent |  |  | $ 7 | 195 | $ 186 |  | $ 388 |
Judicial Ruling | December 2006 to Tax Year 2013 | Cerro Verde Royalty Dispute | Unfavorable Regulatory Actions |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Provision for (benefit from) income taxes |  |  |  | $ 35 |  |  |  |

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