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DESCRIPTION OF THE BUSINESS: (Details) | Sep. 30, 2014
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DESCRIPTION OF THE BUSINESS: |
Percentage of ownership interest held by the parent company | 83.50%

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- Definition Represents the percentage of stock owned by parent. + References No definition available. + Details
Name: | scco_PercentageOfOwnershipByParent
Namespace Prefix: | scco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration