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DERIVATIVE INSTRUMENTS: (Details) - item	3 Months Ended	5 Months Ended
	Sep. 30, 2021	Mar. 31, 2022
DERIVATIVE INSTRUMENTS:
Number of derivative contracts entered	2	2

X

- Definition

The number of derivative contracts entered into during the period.

+ References

No definition available.

+ Details

Name:	scco_NumberOfDerivativeContractsEntered
Namespace Prefix:	scco_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration