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Mining concessions, development costs, right-of-use asset, property, plant and equipment, net - Sensitivity analysis (Details) - Minera Yanacocha SRL and subsidiary [Member]	Dec. 31, 2020
Yanacocha. | Discount rate, Bottom of range
Property, plant and equipments,net [Line Items]
Discount rate used in current estimate of fair value	8.90%
Yanacocha. | Discount rate, Top of range
Property, plant and equipments,net [Line Items]
Discount rate used in current estimate of fair value	9.40%
Conga | Discount rate, Bottom of range
Property, plant and equipments,net [Line Items]
Discount rate used in current estimate of fair value	9.40%
Conga | Discount rate, Top of range
Property, plant and equipments,net [Line Items]
Discount rate used in current estimate of fair value	10.40%

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- Definition

The discount rate used in the current estimate of the present value of the future cash flows expected to be derived from an asset or cash-generating unit.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2021-01-01
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