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COMMITMENTS AND CONTINGENCIES: (Details 3) In Millions, unless otherwise specified | 12 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended
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Dec. 31, 1997 | Dec. 31, 2013 Tia Maria Peruvian operations USD ($) item | Nov. 30, 2013 Toquepala Concentrator Expansion Peruvian operations USD ($) | Nov. 30, 2013 Toquepala Concentrator Expansion Peruvian operations PEN | Feb. 28, 2013 Toquepala Concentrator Expansion Peruvian operations USD ($) item | Feb. 28, 2013 Toquepala Concentrator Expansion Peruvian operations PEN | Jun. 30, 2013 Toquepala Concentrator Expansion Peruvian operations USD ($) | Jun. 30, 2013 Toquepala Concentrator Expansion Peruvian operations PEN | Dec. 31, 2013 MGE | Dec. 31, 2005 MGE item | Dec. 31, 2013 MGE Mexican Operations item
Other commitments: |  |  |  |  |  |  |  |  |  |  |
Number of work-shops successfully held |  | 2 |  |  |  |  |  |  |  |  |
Total spending for the project |  | $ 534.6 |  |  |  |  |  |  |  |  |
Equipment reassigned to other operations, carrying value |  | 189.5 |  |  |  |  |  |  |  |  |
Term of power purchase agreement related to sale of power plant | 20 years |  |  |  |  |  |  |  |  |  |
Number of provinces for which final agreement reached |  |  |  |  | 1 | 1 |  |  |  |  |
Number of provinces neighboring the Toquepala unit |  |  |  |  | 3 | 3 |  |  |  |  |
Amount committed to funding for development projects in the Candarave province |  |  |  |  | 100 | 255 |  |  |  |  |
Amount paid-out for development projects in the Candarave province |  |  |  |  |  |  | 17 | 45 |  |  |
Amount committed to funding for development projects in the Jorge Basadre province |  |  | $ 36 | 100 |  |  |  |  |  |  |
Number of power plants |  |  |  |  |  |  |  |  |  | 2 | 2
Number of power plants completed |  |  |  |  |  |  |  |  |  |  | 1
Percentage of supply to third-party energy users |  |  |  |  |  |  |  |  | 12.00% |  |

X
- Definition Represents the amount committed to funding for development projects in the Candarave province. + References No definition available. + Details
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- Definition Represents the amount committed to funding for development projects in the Jorge Basadre province. + References No definition available. + Details
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Namespace Prefix: | scco_
Data Type: | xbrli:monetaryItemType
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- Definition The total capital expenditure related to mining projects. + References No definition available. + Details
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Namespace Prefix: | scco_
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Balance Type: | debit
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- Definition Represents the amount paid out in the period for development projects in the Candarave province. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition The carrying amount on the books of the entity of the long lived assets held for use. + References No definition available. + Details
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Namespace Prefix: | scco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Represents the number of provinces for which final agreement reached with Peruvian government. + References No definition available. + Details
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Namespace Prefix: | scco_
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- Definition Represents the number of provinces neighboring the Toquepala unit. + References No definition available. + Details
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- Definition Represents the number of work-shops successfully held by the entity. + References No definition available. + Details
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Balance Type: | na
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- Definition Represents the original term (in years) of the power purchase agreement completed in connection with the sale of a power plant to an independent power company. + References No definition available. + Details
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- Definition Represents the number of power plants constructed by the related party. + References No definition available. + Details
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- Definition Represents the number of power plants constructed, completed by the related party. + References No definition available. + Details
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- Definition Represent the percentage of power supply to third-party energy users out of power output from plant by the related party. + References No definition available. + Details
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Namespace Prefix: | scco_
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Period Type: | duration