XML 40 R27.htm IDEA: XBRL DOCUMENT
v3.21.2

INCOME TAXES: (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
INCOME TAXES: |
Schedule of income tax provision and effective income tax rate | ​ The income tax provision and the effective income tax rate for the first nine months of 2021 and 2020 consisted of (in millions):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2021 |  | 2020 | ​
Statutory income tax provision | ​ | $ | 1,387.0 | ​ | $ | 694.7 | ​
Peruvian royalty | ​ |  | 70.1 | ​ |  | 14.1 | ​
Mexican royalty | ​ |  | 162.5 | ​ |  | 44.1 | ​
Peruvian special mining tax | ​ |  | 84.2 | ​ |  | 31.8 | ​
Total income tax provision | ​ | $ | 1,703.8 | ​ | $ | 784.7 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Effective income tax rate | ​ | ​ | 40.0 | % | ​ | 44.4 | %

X
- Definition Disclosure of the income tax provision attributable to continuing operations and the effective income tax rate. + References No definition available. + Details
Name: | scco_ScheduleOfIncomeTaxProvisionAndEffectiveIncomeTaxRateTableTextBlock
Namespace Prefix: | scco_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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