XML 26 R38.htm IDEA: XBRL DOCUMENT v2.3.0.15

AMC’s EXCHANGE OFFER PROPOSAL: (Details)	9 Months Ended
	Sep. 30, 2011
AMC's EXCHANGE OFFER PROPOSAL:
Proposed share exchange ratio from AMC	1.237

X

- Definition

Represents the stock exchange ratio in the proposed business combination from the reporting entity's parent company.

+ Details

Name:	scco_BusinessCombinationProposalFromParentShareExchangeRatio
Namespace Prefix:	scco
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_BusinessCombinationsAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration