XML 69 R27.htm IDEA: XBRL DOCUMENT
v2.4.0.6

INCOME TAXES: (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2013
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 quarter 2013 and 2012 were as follows ($ in millions):
|  | 2013 |  | 2012 |
Income tax provision |  | $ | 234.9 |  | $ | 318.8 |
Effective income tax rate |  | 32.5 | % | 33.9 | %

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
- Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration