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v3.23.1

Commitments and contingencies - Associates - Cerro Verde (Details) S/ in Billions, $ in Billions |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 05, 2021 installment | Jun. 23, 2004 | Dec. 31, 2021 PEN (S/) | Dec. 31, 2021 USD ($)
SUNAT. |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Number Of Equal Monthly Payments | 66 |  |  |
SUNAT. | Sociedad Minera Cerro Verde S.A.A. | December 2006 to December 2013 |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Payment of Litigation Settlement Amount |  |  | S/ 2.9 | $ 791.9
Minimum | Sociedad Minera Cerro Verde S.A.A. |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Royalty rate on net sales |  | 1.00% |  |
Maximum | Sociedad Minera Cerro Verde S.A.A. |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Royalty rate on net sales |  | 3.00% |  |
New guarantee contract | Sociedad Minera Cerro Verde S.A.A. |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Royalty rate on net sales |  | 1.00% |  |
New guarantee contract | Minimum | Sociedad Minera Cerro Verde S.A.A. |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Royalty rate on net sales |  | 1.00% |  |
New guarantee contract | Maximum | Sociedad Minera Cerro Verde S.A.A. |  |  |  |
Disclosure of Commitments and contingencies [Line Items] |  |  |  |
Royalty rate on net sales |  | 12.00% |  |

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