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SEGMENT AND RELATED INFORMATION: (Details 4) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Provisionally priced sales |  |
Provisional price sales adjustment amounts included in net sales | $ 1.6 | $ 6.6
Copper |  |
Provisionally priced sales |  |
Provisional price sales adjustment amounts included in accounts receivable | 1.0 | 2.9
Copper | January through February 2014 |  |
Provisionally priced sales |  |
Nonmonetary notional amount of commodity (in million lbs.) | 16,100,000 |
Provisional price | 3.344 |
Molybdenum |  |
Provisionally priced sales |  |
Provisional price sales adjustment amounts included in accounts receivable | $ 0.6 | $ 3.7
Molybdenum | January 2014 through April 2014 |  |
Provisionally priced sales |  |
Nonmonetary notional amount of commodity (in million lbs.) | 10,300,000 |
Provisional price | 9.70 |

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- Definition Aggregate notional amount of provisionally priced sales agreements with notional amounts expressed in nonmonetary units. + References No definition available. + Details
Name: | scco_NonmonetaryNotionalAmountOfProvisionallyPricedSalesAgreements
Namespace Prefix: | scco_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | scco_ProvisionallyPricedSalesLineItems
Namespace Prefix: | scco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The per unit price of provisionally priced sales agreements. + References No definition available. + Details
Name: | scco_ProvisionalPriceOfSalesAgreementsPerUnit
Namespace Prefix: | scco_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the provisional sales price adjustment amounts included in net sales. + References No definition available. + Details
Name: | scco_ProvisionalPriceSalesAdjustmentInNetSales
Namespace Prefix: | scco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the provisional sales price adjustment amounts included in accounts receivable. + References No definition available. + Details
Name: | scco_ProvisionalPriceSalesAdjustmentsInAccountsReceivable
Namespace Prefix: | scco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant