XML 93 R63.htm IDEA: XBRL DOCUMENT
v2.4.1.9

BENEFIT PLANS: (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
BENEFIT PLANS: |  |  |
Number of expatriate noncontributory defined benefit pension plans | 2 scco_DefinedBenefitPlanNumberOfExpatriateNoncontributoryPlans |  |
Post retirement defined benefit plan |  |  |
Defined benefit plan, net periodic benefit cost |  |  |
Service cost | $ 1.0 us-gaap_DefinedBenefitPlanServiceCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | $ 1.1 us-gaap_DefinedBenefitPlanServiceCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | $ 1.0 us-gaap_DefinedBenefitPlanServiceCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Interest cost | 1.1 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.0 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.1 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Expected return on plan assets | (3.3)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (3.4)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (3.6)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Amortization of transition assets, net | 0.1 us-gaap_DefinedBenefitPlanAmortizationOfTransitionObligationsAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
Amortization of net actuarial gain | (0.4)scco_DefinedBenefitPlanAmortizationOfActuarialLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (0.7)scco_DefinedBenefitPlanAmortizationOfActuarialLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (0.8)scco_DefinedBenefitPlanAmortizationOfActuarialLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Amortization of net loss (gain) | 0.2 us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.2 us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.1 us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Net periodic benefit costs | (1.3)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (1.8)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (2.2)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Change in benefit obligation: |  |  |
Projected benefit obligation at beginning of year | 26.8 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 27.9 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Service cost | 1.0 us-gaap_DefinedBenefitPlanServiceCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.1 us-gaap_DefinedBenefitPlanServiceCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.0 us-gaap_DefinedBenefitPlanServiceCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Interest cost | 1.1 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.0 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.1 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Actuarial gain census | 0 scco_DefinedBenefitPlanActuarialNetGainLossCensus / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (0.3)scco_DefinedBenefitPlanActuarialNetGainLossCensus / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Benefits paid | (1.9)scco_BenefitPlanBenefitsPaid1 / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (2.2)scco_BenefitPlanBenefitsPaid1 / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Actuarial (gain)/loss | (1.6)us-gaap_DefinedBenefitPlanActuarialGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.3 us-gaap_DefinedBenefitPlanActuarialGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Actuarial gain assumption changes | 2.2 scco_DefinedBenefitPlanActuarialAssumptionChangesGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (1.0)scco_DefinedBenefitPlanActuarialAssumptionChangesGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Inflation adjustment | (1.8)scco_DefinedBenefitPlanRecognizedInflationAdjustments / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
Projected benefit obligation at end of year | 25.8 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 26.8 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 27.9 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 60.6 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 61.9 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Actual return on plan assets | 3.7 us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (0.2)us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Employer contributions | (0.5)us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.1 us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Benefits paid | (1.1)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (0.9)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Currency exchange rate adjustment | (5.0)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (0.3)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Fair value of plan assets at end of year | 57.7 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 60.6 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 61.9 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Funded status at end of year | 31.9 us-gaap_DefinedBenefitPlanFundedStatusOfPlan / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 33.8 us-gaap_DefinedBenefitPlanFundedStatusOfPlan / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Amounts recognized in statement of financial position |  |  |
Non-current assets | 31.9 us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 33.8 us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Total | 31.9 us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 33.8 us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Amounts recognized in accumulated other comprehensive income |  |  |
Net loss (gain) | (1.3)scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (1.7)scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Prior service cost (credit) | 1.6 us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.1 us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Total, net of tax | 0.3 us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (1.6)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (3.6)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Net loss (gain), income taxes | 0.4 scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.5 scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Reconciliation of accumulated other comprehensive income: |  |  |
Accumulated other comprehensive income at beginning of plan year | (1.6)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (3.6)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Net loss/(gain) amortized during the year | 0.1 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAmortizedGainLossDuringPeriodNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.3 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAmortizedGainLossDuringPeriodNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Net loss/(gain) occurring during the year | 0.2 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansNetAmortizedGainLossArisingDuringPeriodNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.6 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansNetAmortizedGainLossArisingDuringPeriodNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Amortization of transition obligation | (0.1)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
Currency exchange rate adjustment | 1.7 scco_AccumulatedOtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetCurrencyExchangeRateChangesRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.1 scco_AccumulatedOtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetCurrencyExchangeRateChangesRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Net adjustment to accumulated other comprehensive income | 1.9 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 2.0 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Accumulated other comprehensive income at end of plan year | 0.3 us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (1.6)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (3.6)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Net adjustment to accumulated other comprehensive income, income taxes | (1.1)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentTaxPortion / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (1.3)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentTaxPortion / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Amounts in accumulative other comprehensive income amortized and recognized as a component of net periodic benefit cost, net of income tax |  |  |
Net loss / (gain) | 0.2 scco_DefinedBenefitPlanReclassificationOfNetGainsLossesFromAccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.6 scco_DefinedBenefitPlanReclassificationOfNetGainsLossesFromAccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Amortization of net (loss) gain | 0.1 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanAmortizationOfNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0.3 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanAmortizationOfNetGainLossRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Amortization of transition obligation | (0.1)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
Total amortization expenses | 0.2 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAmortizedAndRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 1.9 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAmortizedAndRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
Expected Benefit Payments |  |  |
2015 | 7.2 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
2016 | 1.5 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
2017 | 1.4 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
2018 | 1.5 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
2019 | 1.6 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
2020 to 2023 | 8.3 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
Total | 21.5 scco_DefinedBenefitPlanExpectedFutureBenefitPayments / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |  |
Post retirement defined benefit plan | Expatriate Plan |  |  |
Assumptions used to determine the pension obligation and seniority premiums as of year-end and the net cost in the ensuing year |  |  |
Discount rate (as a percent) | 3.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember | 4.25%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember | 3.35%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember
Expected long-term rate of return on plan asset (as a percent) | 4.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostExpectedLongTermReturnOnAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember | 4.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostExpectedLongTermReturnOnAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember | 4.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostExpectedLongTermReturnOnAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember
Post retirement defined benefit plan | Mexican Health Plan |  |  |
Assumptions used to determine the pension obligation and seniority premiums as of year-end and the net cost in the ensuing year |  |  |
Discount rate (as a percent) | 6.70%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember | 7.10%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember | 6.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember
Expected long-term rate of return on plan asset (as a percent) | 6.70%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostExpectedLongTermReturnOnAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember | 7.10%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostExpectedLongTermReturnOnAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember | 6.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostExpectedLongTermReturnOnAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember
Rate of increase in future compensation level (as a percent) | 4.00%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostRateOfCompensationIncrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember | 4.00%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostRateOfCompensationIncrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember | 4.00%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostRateOfCompensationIncrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember
Post-retirement Health Care Plan |  |  |
Defined benefit plan, net periodic benefit cost |  |  |
Interest cost | 1.3 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 1.7 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 1.5 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Amortization of prior service cost (credit) | (0.3)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  | (0.3)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Net periodic benefit costs | 1.0 us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 1.7 us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 1.2 us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Change in benefit obligation: |  |  |
Projected benefit obligation at beginning of year | 21.7 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 27.2 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Interest cost | 1.3 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 1.7 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 1.5 us-gaap_DefinedBenefitPlanInterestCost / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Actuarial loss/ (gain) - claims cost | (0.2)scco_DefinedBenefitPlanActuarialNetGainsLossesClaims / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Benefits paid | (0.6)scco_BenefitPlanBenefitsPaid1 / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.1)scco_BenefitPlanBenefitsPaid1 / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Actuarial (gain)/loss | (3.2)us-gaap_DefinedBenefitPlanActuarialGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (6.8)us-gaap_DefinedBenefitPlanActuarialGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Actuarial gain assumption changes | 0.4 scco_DefinedBenefitPlanActuarialAssumptionChangesGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.2)scco_DefinedBenefitPlanActuarialAssumptionChangesGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Inflation adjustment | (2.3)scco_DefinedBenefitPlanRecognizedInflationAdjustments / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.1)scco_DefinedBenefitPlanRecognizedInflationAdjustments / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Projected benefit obligation at end of year | 17.1 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 21.7 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 27.2 us-gaap_DefinedBenefitPlanBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Change in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Employer contributions | 0.1 us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 0.1 us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Benefits paid | (0.1)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.1)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Fair value of plan assets at end of year | 0 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 0 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Funded status at end of year | (17.1)us-gaap_DefinedBenefitPlanFundedStatusOfPlan / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (21.7)us-gaap_DefinedBenefitPlanFundedStatusOfPlan / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Amounts recognized in statement of financial position |  |  |
Current liabilities | (0.1)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.1)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Non-current liabilities | (17.0)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (21.6)us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Total | (17.1)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (21.7)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Amounts recognized in accumulated other comprehensive income |  |  |
Net loss (gain) | (4.8)scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.3)scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Prior service cost (credit) | (0.1)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.1)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Total, net of tax | (4.9)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.4)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.2)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Net loss (gain), income taxes | 3.3 scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 3.0 scco_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Reconciliation of accumulated other comprehensive income: |  |  |
Accumulated other comprehensive income at beginning of plan year | (4.4)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.2)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Net loss/(gain) occurring during the year | (1.8)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansNetAmortizedGainLossArisingDuringPeriodNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.2)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansNetAmortizedGainLossArisingDuringPeriodNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Amortization of transition obligation | 0.1 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Currency exchange rate adjustment | 1.2 scco_AccumulatedOtherComprehensiveIncomeReclassificationOfDefinedBenefitPlanNetCurrencyExchangeRateChangesRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Net adjustment to accumulated other comprehensive income | (0.5)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.2)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Accumulated other comprehensive income at end of plan year | (4.9)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.4)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (0.2)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember
Net adjustment to accumulated other comprehensive income, income taxes | 3.3 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentTaxPortion / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | 3.0 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAdjustmentTaxPortion / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Amounts in accumulative other comprehensive income amortized and recognized as a component of net periodic benefit cost, net of income tax |  |  |
Net loss / (gain) | (1.8)scco_DefinedBenefitPlanReclassificationOfNetGainsLossesFromAccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.2)scco_DefinedBenefitPlanReclassificationOfNetGainsLossesFromAccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Amortization of transition obligation | 0.1 scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlanNetTransitionAssetObligationRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Total amortization expenses | (1.7)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAmortizedAndRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember | (4.2)scco_AccumulatedOtherComprehensiveIncomeDefinedBenefitPlansAmortizedAndRecognizedInNetPeriodicBenefitCostNetOfTax / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |
Expected Benefit Payments |  |  |
2015 | 1.0 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
2016 | 1.1 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
2017 | 1.1 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
2018 | 1.2 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
2019 | 1.3 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
2020 to 2023 | 13.3 us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Total | 19.0 scco_DefinedBenefitPlanExpectedFutureBenefitPayments / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember |  |
Post-retirement Health Care Plan | Expatriate Plan |  |  |
Assumptions used to determine the pension obligation and seniority premiums as of year-end and the net cost in the ensuing year |  |  |
Discount rate (as a percent) | 3.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember | 4.25%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember | 4.25%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember
Expected Benefit Payments |  |  |
Assumed trend rate for covered health care benefit cost (as a percent) | 5.80%scco_DefinedBenefitPlanHealthCareCostTrendRateAssumed / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember |  |
Assumed ultimate trend rate for health care benefit cost (as a percent) | 4.60%us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_ExpatriatePlanMember |  |
Post-retirement Health Care Plan | Mexican Health Plan |  |  |
Expected Benefit Payments |  |  |
Assumed trend rate for covered health care benefit cost (as a percent) | 4.00%scco_DefinedBenefitPlanHealthCareCostTrendRateAssumed / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember |  |
Effect of one percentage-point change in assumed other benefit cost trend rates |  |  |
Effect of one percentage-point increase on total service and interest cost components | 1.3 us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember |  |
Effect of one percentage-point decrease on total service and interest cost components | 0.8 us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1 / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember |  |
Effect of one percentage-point increase on post-retirement benefit obligation | 17.2 us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember |  |
Effect of one percentage-point decrease on post-retirement benefit obligation | $ 13.7 us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1 / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember |  |
Post-retirement Health Care Plan | Weighted average | Mexican Health Plan |  |  |
Assumptions used to determine the pension obligation and seniority premiums as of year-end and the net cost in the ensuing year |  |  |
Discount rate (as a percent) | 6.70%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember | 7.10%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember | 6.50%scco_DefinedBenefitPlanAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostDiscountRate / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = scco_DefinedBenefitPostretirementHealthCarePlanMember / us-gaap_PlanNameAxis = scco_MexicanPlanMember / us-gaap_RangeAxis = us-gaap_WeightedAverageMember

X
- Definition The adjustment out of accumulated other comprehensive income after tax for amortized gains or losses recognized as a component of net periodic benefit cost during the period. + References No definition available. + Details
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- Definition The adjustment out of accumulated other comprehensive income after tax for amortized gains or losses recognized as a component of net periodic benefit cost during the period. + References No definition available. + Details
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- Definition The increase (decrease) in accumulated other comprehensive income during the period related to pension and other postretirement benefit plans, after tax. + References No definition available. + Details
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- Definition Amount of tax (expense) benefit on increase (decrease) in accumulated other comprehensive income during the period, related to pension and other postretirement benefit plans. + References No definition available. + Details
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- Definition The aggregate adjustment out of accumulated other comprehensive income after tax recognized as a component of net periodic benefit cost during the period. + References No definition available. + Details
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- Definition The accumulated change in the value of either the projected benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost, net of tax. + References No definition available. + Details
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- Definition The adjustment out of accumulated other comprehensive income after tax for amortized gains or losses recognized as a component of net periodic benefit cost during the period. + References No definition available. + Details
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- Definition The adjustment out of other comprehensive income for the net changes in currency rate changes recognized as a component of net periodic benefit cost during the period, after tax. + References No definition available. + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations. + References No definition available. + Details
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- Definition The amount of gains and losses, net of tax that are not yet recognized as a component of the net periodic benefit cost and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from the experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan. + References No definition available. + Details
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- Definition Aggregate amount of tax portion on gains (losses), that are not yet recognized as a component of the net periodic benefit cost and that are recognized as increases (decreases) in other comprehensive income as they arise. Gains (losses) are due to changes in the value of either the benefit obligation or the plan assets resulting from the experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan. + References No definition available. + Details
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- Definition Represents the amount of gain (loss) from changes in actuarial assumptions. + References No definition available. + Details
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- Definition The net increase or decrease of changes in the value of either the benefit obligation or the plan assets attributable to the revised census data. + References No definition available. + Details
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- Definition The net increase or decrease of changes in the value of either the benefit obligation or the plan assets attributable to claims cost. + References No definition available. + Details
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- Definition Represents the amount of actuarial loss recognized in net periodic benefit cost. + References No definition available. + Details
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- Definition Represents the interest rate used to adjust for the time value of money assumed to determine the pension obligation and seniority premiums as of the year-end and the net cost. + References No definition available. + Details
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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to determine the pension obligation and seniority premiums as of year-end and the net cost. + References No definition available. + Details
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- Definition Represents the expected rate of compensation increases (for pay-related plans) assumed to determine the pension obligation and seniority premiums as of the year-end and the net cost. + References No definition available. + Details
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- Definition Represents the total amount of the benefits expected to be paid in the future. + References No definition available. + Details
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- Definition The assumed health care cost trend rate for the current year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan, population by age and dependency status. + References No definition available. + Details
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- Definition Represents the number of expatriate noncontributory defined benefit pension plans. + References No definition available. + Details
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- Definition This element represents the amount of net gains and losses amounts in accumulative other comprehensive income recognized as a component of net periodic benefit cost during the period, after tax. + References No definition available. + Details
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- Definition Represents the change in the net periodic benefit cost attributable to inflationary adjustments. + References No definition available. + Details
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- Definition The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (j-k) -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount after tax of cost (credit) due to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as a component of net periodic benefit cost. + References No definition available. + Details
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- Definition The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost) -URI http://asc.fasb.org/extlink&oid=6504192 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost) -URI http://asc.fasb.org/extlink&oid=6504226 + Details
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- Definition Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Gain or Loss -URI http://asc.fasb.org/extlink&oid=6514294 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Glossary Gain or Loss -URI http://asc.fasb.org/extlink&oid=6749293 + Details
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- Definition The amount of gains or losses recognized in net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(4) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The amount of the transition obligation or asset recognized in net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(6) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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- Definition The amount for overfunded plans recognized in the balance sheet as a noncurrent asset associated with a defined benefit pension plan or other postretirement defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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- Definition 1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Projected Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6522206 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503904 + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Postretirement Benefits -URI http://asc.fasb.org/extlink&oid=6521376 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=6506267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=6506309 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512136 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512171 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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- Definition The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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- Definition The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Service Cost (Component of Net Periodic Pension Cost) -URI http://asc.fasb.org/extlink&oid=6525008 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition The ultimate trend rate for health care costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Liabilities -URI http://asc.fasb.org/extlink&oid=6509677 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=21915240&loc=d3e1703-114919 + Details
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