XML 56 R49.htm IDEA: XBRL DOCUMENT
v3.19.3

COMMITMENTS AND CONTINGENCIES: - Environmental matters (Details) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Dec. 31, 2011 category person
Environmental costs |  |  |
Environmental capital investment | $ 68.8 | $ 73.3 |
Peru |  |  |
Environmental costs |  |  |
Environmental capital investment | 12.9 | 38.0 |
Mexico |  |  |
Environmental costs |  |  |
Environmental capital investment | $ 55.9 | $ 35.3 |
Number of categories of collective actions | category |  |  | 3
Minimum number of people claiming injury due to collective action initiative in Civil Federal Procedures Code (CFPC) | person |  |  | 30

X
- References No definition available. + Details
Name: | scco_EnvironmentalCostLineItems
Namespace Prefix: | scco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the minimum number of people claiming injury, to initiate collective action for environmental matters. + References No definition available. + Details
Name: | scco_MinimumNumberOfPeopleClaimingInjuryToInitiateCollectiveAction
Namespace Prefix: | scco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of categories of collective actions for environmental matters. + References No definition available. + Details
Name: | scco_NumberOfCategoriesOfCollectiveActionsForEnvironmentalMatters
Namespace Prefix: | scco_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of environmental remediation costs capitalized. These expenditures may relate to long-lived improvements in operating facilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 25 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=39739230&loc=d3e11660-110855 + Details
Name: | us-gaap_EnvironmentalCostsRecognizedCapitalizedInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_StatementGeographicalAxis=country_PE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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