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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
COMPREHENSIVE INCOME: |  |  |
Net income | $ 1,337,938 us-gaap_ProfitLoss | $ 1,624,181 us-gaap_ProfitLoss | $ 1,941,372 us-gaap_ProfitLoss
Other comprehensive income (loss) net of tax: |  |  |
(Increase) decrease in pension and other post-retirement benefits (net of income tax of $0.8 million, $(1.4) million and $2.2 million) | (1,426)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax | 2,207 us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax | (3,394)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
Derivative instruments classified as cash flow hedge: |  |  |
Decrease in prior period accumulated unrealized (gain) (net of income taxes of $3.5 million in 2012) |  |  | (5,452)scco_OtherComprehensiveIncomeUnrealizedLossOnDerivativesArisingDuringPeriodNetOfTax
Total other comprehensive gain (loss) | (1,426)us-gaap_OtherComprehensiveIncomeLossNetOfTax | 2,207 us-gaap_OtherComprehensiveIncomeLossNetOfTax | (8,846)us-gaap_OtherComprehensiveIncomeLossNetOfTax
Total comprehensive income | 1,336,512 us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | 1,626,388 us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | 1,932,526 us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
Comprehensive income attributable to the non-controlling interest | 4,965 us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | 5,664 us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | 6,736 us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest
Comprehensive income attributable to SCC | $ 1,331,547 us-gaap_ComprehensiveIncomeNetOfTax | $ 1,620,724 us-gaap_ComprehensiveIncomeNetOfTax | $ 1,925,790 us-gaap_ComprehensiveIncomeNetOfTax

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=35737396 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 + Details
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