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CONTINGENCIES (Tax Matters by Tax Year) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended | 21 Months Ended
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2022 | Dec. 21, 2018
Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Total | $ 700.0 | $ 700.0 |
PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Total | $ 900.0 | $ 900.0 |
Progressive export duty on copper concentrates, higher threshold, percent | 5.00% | 5.00% | 7.50%
SUNAT | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | $ 321.0 | $ 321.0 |
Penalties and Interest | 476.0 | 476.0 |
Total | 797.0 | 797.0 |
SUNAT | 2003 to 2008 | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 48.0 | 48.0 |
Penalties and Interest | 130.0 | 130.0 |
Total | 178.0 | 178.0 |
SUNAT | 2009 | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 56.0 | 56.0 |
Penalties and Interest | 52.0 | 52.0 |
Total | 108.0 | 108.0 |
SUNAT | 2010 | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 54.0 | 54.0 |
Penalties and Interest | 125.0 | 125.0 |
Total | 179.0 | 179.0 |
SUNAT | 2011 and 2012 | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 42.0 | 42.0 |
Penalties and Interest | 73.0 | 73.0 |
Total | 115.0 | 115.0 |
SUNAT | 2013 | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 48.0 | 48.0 |
Penalties and Interest | 66.0 | 66.0 |
Total | 114.0 | 114.0 |
SUNAT | Tax Year 2014 to Tax Year 2017 | Cerro Verde |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 73.0 | 73.0 |
Penalties and Interest | 30.0 | 30.0 |
Total | 103.0 | 103.0 |
Indonesia Tax Authority | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 520.0 | 520.0 |
Penalties and Interest | 430.0 | 430.0 |
Total | 950.0 | 950.0 |
Indonesia Tax Authority | 2005 | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 62.0 | 62.0 |
Penalties and Interest | 29.0 | 29.0 |
Total | 91.0 | 91.0 |
Indonesia Tax Authority | 2007 | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 45.0 | 45.0 |
Penalties and Interest | 22.0 | 22.0 |
Total | 67.0 | 67.0 |
Indonesia Tax Authority | 2012 and 2013 | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 41.0 | 41.0 |
Penalties and Interest | 41.0 | 41.0 |
Total | 82.0 | 82.0 |
Indonesia Tax Authority | 2014 and 2015 | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 108.0 | 108.0 |
Penalties and Interest | 0.0 | 0.0 |
Total | 108.0 | 108.0 |
Indonesia Tax Authority | 2016 | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 257.0 | 257.0 |
Penalties and Interest | 336.0 | 336.0 |
Total | 593.0 | 593.0 |
Indonesia Tax Authority | 2017 | PT-FI |  |  |
Income Tax Examination [Line Items] |  |  |
Tax Assessment | 7.0 | 7.0 |
Penalties and Interest | 2.0 | 2.0 |
Total | $ 9.0 | $ 9.0 |

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