XML 55 R42.htm IDEA: XBRL DOCUMENT
v3.8.0.1

RELATED PARTY TRANSACTIONS: (Details) $ in Millions, $ in Millions |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 04, 2014 item | May 31, 2010 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($) | Mar. 31, 2012 USD ($) | Dec. 31, 2012 item MW | Dec. 31, 2005 item | Dec. 31, 2017 USD ($) | Mar. 31, 2012 MXN ($) | Mar. 31, 2012 USD ($)
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | $ 66.1 |  |  |  |  | $ 26.1 |  |
Related parties payable: |  |  | 58.9 |  |  |  |  | 90.1 |  |
Grupo Mexico and affiliates |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Total purchases |  |  | 99.7 | $ 116.4 |  |  |  |  |  |
Total sales |  |  | 59.7 | 66.6 |  |  |  |  |  |
Mexico Generadora de Energia, S. de R.L. ("MGE") |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 31.3 |  |  |  |  | 16.2 |  |
Related parties payable: |  |  | 28.7 |  |  |  |  | 38.5 |  |
Total purchases |  |  | 61.9 | 61.1 |  |  |  |  |  |
Total sales |  |  | 23.2 | 24.4 |  |  |  |  |  |
Maximum amount of line of credit granted to related party |  | $ 350.0 |  |  |  |  |  |  |  |
Interest rate (as a percent) |  | 4.40% |  |  |  |  |  |  |  |
Loan repaid |  |  |  |  | $ 150.0 |  |  |  |  |
Mexico Generadora de Energia, S. de R.L. ("MGE") | Mexico |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Number of power plants | item |  |  |  |  |  | 2 | 2 |  |  |
Number of natural gas-fired combined cycle power generating units | item |  |  |  |  |  | 2 |  |  |  |
Net total capacity (in megawatts) | MW |  |  |  |  |  | 516.2 |  |  |  |
Percentage of supply to third-party energy users |  |  |  |  |  | 14.00% |  |  |  |
Mexico Generadora de Energia, S. de R.L. ("MGE") | Controladora de Infraestructura Energetica Mexico, S. A. de C. V. |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Percentage of interest acquired |  |  |  |  |  |  |  |  | 99.999% | 99.999%
Value of interest acquired |  |  |  |  |  |  |  |  | $ 1,928.6 | $ 150.0
Mexico Generadora de Energia, S. de R.L. ("MGE") | Controladora de Infraestructura Energetica Mexico, S. A. de C. V. | Mexico |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Percentage of interest acquired |  |  |  |  |  | 99.999% |  |  |  |
Mexico Generadora de Energia, S. de R.L. ("MGE") | Minera Mexico | Maximum |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  | 0.001% | 0.001%
Asarco LLC |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 29.3 |  |  |  |  | 4.1 |  |
Related parties payable: |  |  | 14.8 |  |  |  |  | 24.2 |  |
Total purchases |  |  | 6.8 | 13.0 |  |  |  |  |  |
Total sales |  |  | 36.5 | 41.8 |  |  |  |  |  |
Grupo Mexico |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 2.8 |  |  |  |  | 2.8 |  |
Related parties payable: |  |  | 3.6 |  |  |  |  | 0.7 |  |
Total purchases |  |  | 4.5 | 3.5 |  |  |  |  |  |
Total sales |  |  |  | 0.2 |  |  |  |  |  |
Donations |  |  | 0.7 |  |  |  |  |  |  |
Compania Perforadora Mexico, S.A.P.I. de C.V. and affiliates |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 1.4 |  |  |  |  | 1.4 |  |
Total sales |  |  |  | 0.2 |  |  |  |  |  |
Mexico Proyectos y Desarrollos, S.A. de C.V. and affiliates |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 0.7 |  |  |  |  | 1.1 |  |
Related parties payable: |  |  | 7.7 |  |  |  |  | 21.7 |  |
Total purchases |  |  | 15.9 | 27.1 |  |  |  |  |  |
Ferrocarril Mexicano, S.A. de C.V. |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties payable: |  |  | 3.2 |  |  |  |  | 2.6 |  |
Total purchases |  |  | 10.0 | 10.8 |  |  |  |  |  |
Eolica el Retiro |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties payable: |  |  | 0.6 |  |  |  |  | 0.8 |  |
Total purchases |  |  | 0.6 | 0.9 |  |  |  |  |  |
Number of wind turbines | item | 37 |  |  |  |  |  |  |  |  |
Percentage of supply to third-party energy users | 27.00% |  |  |  |  |  |  |  |  |
Related to the controlling group |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Total purchases |  |  | 0.3 |  |  |  |  |  |  |
Total sales |  |  | 0.2 | 0.1 |  |  |  |  |  |
Mexico Transportes Aereos, S.A. de C.V. ("Mextransport") |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 0.1 |  |  |  |  |  |  |
Related parties payable: |  |  | 0.1 |  |  |  |  | 0.3 |  |
Total purchases |  |  | 0.2 |  |  |  |  |  |  |
Total sales |  |  | 0.1 |  |  |  |  |  |  |
Operadora de Cinemas, S.A. de C.V. |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 0.3 |  |  |  |  | 0.3 |  |
Related parties payable: |  |  | 0.1 |  |  |  |  | 0.7 |  |
Operadora de Cinemas, S.A. de C.V. | Maximum |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Total purchases |  |  | 0.1 |  |  |  |  |  |  |
Total sales |  |  | 0.1 | 0.1 |  |  |  |  |  |
Boutique Bowling de Mexico, S.A. de C.V. |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Related parties receivable current: |  |  | 0.2 |  |  |  |  | 0.2 |  |
Related parties payable: |  |  | 0.1 |  |  |  |  | $ 0.6 |  |
Total purchases |  |  | 0.1 |  |  |  |  |  |  |
Total sales |  |  | $ 0.1 | $ 0.1 |  |  |  |  |  |
Equity investment in affiliate |  |  |  |  |  |  |  |  |  |
RELATED PARTY TRANSACTIONS: |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  | 44.20% |  |  |  |  |  |  |

X
- Definition Donations made + References No definition available. + Details
Name: | scco_DonationsPaid
Namespace Prefix: | scco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Describes interest rate with related parties, including directors, officers and key employees. + References No definition available. + Details
Name: | scco_LoansAndLeasesReceivableRelatedPartiesDescriptionInterestRate
Namespace Prefix: | scco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of natural gas-fired combined cycle power generating units. + References No definition available. + Details
Name: | scco_NumberOfNaturalGasFiredCombinedCyclePowerGeneratingUnits
Namespace Prefix: | scco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of wind turbines. + References No definition available. + Details
Name: | scco_NumberOfWindTurbines
Namespace Prefix: | scco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the net total capacity of the natural gas-fired combined cycle power generating units. + References No definition available. + Details
Name: | scco_PowerGeneratingUnitsTotalCapacity
Namespace Prefix: | scco_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of power plants constructed by the related party. + References No definition available. + Details
Name: | scco_RelatedPartyTransactionsNumberOfPowerPlants
Namespace Prefix: | scco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | scco_RelatedPartyTransactionsPercentageOfPowerSupplyToThirdPartyEnergyUsers
Namespace Prefix: | scco_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the value of equity interest acquired in the entity. + References No definition available. + Details
Name: | scco_ValueOfEquityInterestsAcquired
Namespace Prefix: | scco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(11)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DueFromRelatedPartiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DueToRelatedPartiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash inflow from related parties which reduce the amount of loans and leases receivable due from related parties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(e)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Related Parties -URI http://asc.fasb.org/extlink&oid=16382449 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07.1(c)) -URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999 + Details
Name: | us-gaap_RevenueFromRelatedParties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_GrupoMexicoSABDeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_MexicoGeneradoraDeEnergiaSDeRLMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_MX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=scco_ControladoraDeInfraestructuraEnergeticaMexicoSADeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=scco_MineraMexicoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_AsarcoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_GrupoMexicoSABDeCVAndAffiliatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_CompaniaPerforadoraMexicoSAPIDeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_MexicoProyectosYDesarrollosSADeCVAndAffiliatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_FerrocarrilMexicanoSADeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_EolicaElRetiroMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_OtherLarreaFamilyCompaniesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_MexicoTransportesAereosSADeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_OperadoraDeCinemasSDeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_BoutiqueBowlingDeMexicoSDeCVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=scco_CompaniaMineraCoimolacheSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |