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STOCKHOLDERS' EQUITY: (Details 2) (USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended | 3 Months Ended | 12 Months Ended | 87 Months Ended
--- | --- | --- | --- | ---
Feb. 28, 2015 | Jan. 31, 2015 | Mar. 21, 2014 | Mar. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2008 | Mar. 31, 2015
SCC share repurchase program: |  |  |  |  |  |  |  |
Amount authorized for share repurchase program |  |  |  | $ 3,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 |  |  | $ 500 us-gaap_StockRepurchaseProgramAuthorizedAmount1 | $ 3,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1
Total Number of Shares Purchased | 2,590,076 us-gaap_TreasuryStockSharesAcquired | 5,927,154 us-gaap_TreasuryStockSharesAcquired | 4,563,649 us-gaap_TreasuryStockSharesAcquired | 13,080,879 us-gaap_TreasuryStockSharesAcquired | 22,711,428 us-gaap_TreasuryStockSharesAcquired | 10,245,000 us-gaap_TreasuryStockSharesAcquired | 46,914,486 us-gaap_TreasuryStockSharesAcquired | 92,951,793 us-gaap_TreasuryStockSharesAcquired
Average Price Paid per Share (in dollars per share) | $ 29.45 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 27.12 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 29.16 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 29.29 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 30.06 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 27.47 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 18.72 us-gaap_TreasuryStockAcquiredAverageCostPerShare | $ 23.80 us-gaap_TreasuryStockAcquiredAverageCostPerShare
Total Number of Shares Purchased as Part of Publicly Announced Plan | 88,388,144 scco_TreasuryStockSharesAcquiredCumulative | 85,798,068 scco_TreasuryStockSharesAcquiredCumulative |  | 92,951,793 scco_TreasuryStockSharesAcquiredCumulative | 79,870,914 scco_TreasuryStockSharesAcquiredCumulative | 57,159,486 scco_TreasuryStockSharesAcquiredCumulative | 46,914,486 scco_TreasuryStockSharesAcquiredCumulative | 92,951,793 scco_TreasuryStockSharesAcquiredCumulative
Maximum Number of Shares that May Yet Be Purchased Under the Plan @ $29.18 |  |  |  | 26,992,079 us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased |  |  |  | 26,992,079 us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
Total Cost | $ 76.3 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 160.7 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 133.1 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 370.1 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 682.8 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 281.4 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 878.1 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 2,212.4 us-gaap_TreasuryStockValueAcquiredCostMethod
Percentage of ownership interest held by the parent company |  |  |  | 86.00%scco_PercentageOfOwnershipByParent |  |  |  | 86.00%scco_PercentageOfOwnershipByParent

X
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- Details
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- Definition Represents the total number of shares purchased under the stock repurchase program as part of the publicly announced plan. + References No definition available. + Details
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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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