1.0.0.3 false Statements of Consolidated Cash Flows (USD $) In Millions false 1 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 3 $ false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 3 Operating activities: 1 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 4 Net income (loss) 2 us-gaap_ProfitLoss us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 true true 2093000000 2093 false false 2 true true 1160000000 1160 false false 3 true true -1485000000 -1485 false false No definition available. No authoritative reference available. false 5 Adjustments: 2 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 6 Amortization 3 us-gaap_DepreciationAndAmortization us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 806000000 806 false false 2 false true 738000000 738 false false 3 false true 685000000 685 false false No definition available. No authoritative reference available. false 7 Stock based compensation and other benefits 3 us-gaap_EmployeeBenefitsAndShareBasedCompensation us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 57000000 57 false false 2 false true 50000000 50 false false 3 false true 46000000 46 false false No definition available. No authoritative reference available. false 8 Accretion of accumulated reclamation obligations (Note 25) 3 nem_AccretionAccumulatedReclamationObligationsOperatingNonoperating nem false credit duration monetary Amount of expense recognized in the income statement during the period that is associated with the accretion of asset... false false false false false false false false false 1 false true 46000000 46 false false 2 false true 41000000 41 false false 3 false true 35000000 35 false false Amount of expense recognized in the income statement during the period that is associated with the accretion of asset retirement obligations for both operating and non-operating sites. No authoritative reference available. false 9 Revaluation of contingent consideration (Note 13) 3 nem_RevaluationOfContingentConsideration nem false credit duration monetary Revaluation of contingent consideration. false false false false false false false false false 1 false true 23000000 23 false false 2 false true 0 0 false false 3 false true 0 0 false false Revaluation of contingent consideration. No authoritative reference available. false 10 Loss (income) from discontinued operations (Note 10) 3 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true 16000000 16 false false 2 false true -13000000 -13 false false 3 false true 905000000 905 false false No definition available. No authoritative reference available. false 11 Reclamation estimate revisions (Note 25) 3 us-gaap_ReclamationAndMineShutdownProvision us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 13000000 13 false false 2 false true 101000000 101 false false 3 false true 29000000 29 false false No definition available. No authoritative reference available. false 12 Write-down of property, plant and mine development 3 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 7000000 7 false false 2 false true 137000000 137 false false 3 false true 10000000 10 false false No definition available. No authoritative reference available. false 13 Impairment of marketable securities (Note 16) 3 us-gaap_ImpairmentOfInvestments us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 6000000 6 false false 2 false true 114000000 114 false false 3 false true 46000000 46 false false No definition available. No authoritative reference available. false 14 Deferred income taxes 3 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1000000 1 false false 2 false true -315000000 -315 false false 3 false true -156000000 -156 false false No definition available. No authoritative reference available. false 15 Write-down of goodwill 3 us-gaap_GoodwillImpairmentLoss us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 false false 3 false true 1122000000 1122 false false No definition available. No authoritative reference available. false 16 Gain on asset sales, net 3 us-gaap_GainLossOnSaleOfPropertyPlantEquipment us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -24000000 -24 false false 2 false true -72000000 -72 false false 3 false true -10000000 -10 false false No definition available. No authoritative reference available. false 17 Other operating adjustments and write-downs 3 us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 97000000 97 false false 2 false true 83000000 83 false false 3 false true 30000000 30 false false No definition available. No authoritative reference available. false 18 Net change in operating assets and liabilities (Note 28) 3 us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -227000000 -227 false false 2 false true -627000000 -627 false false 3 false true -729000000 -729 false false No definition available. No authoritative reference available. true 19 Net cash provided from continuing operations 2 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 2914000000 2914 false false 2 false true 1397000000 1397 false false 3 false true 528000000 528 false false No definition available. No authoritative reference available. false 20 Net cash provided from (used in) discontinued operations (Note 10) 2 us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 33000000 33 false false 2 false true -104000000 -104 false false 3 false true 137000000 137 false false No definition available. No authoritative reference available. true 21 Net cash provided from operations 2 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 2947000000 2947 false false 2 false true 1293000000 1293 false false 3 false true 665000000 665 false false No definition available. No authoritative reference available. true 22 Investing activities: 1 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 23 Additions to property, plant and mine development 2 us-gaap_PaymentsToAcquireProductiveAssets us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -1769000000 -1769 false false 2 false true -1870000000 -1870 false false 3 false true -1669000000 -1669 false false No definition available. No authoritative reference available. false 24 Acquisitions, net (Note 13) 2 us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -1007000000 -1007 false false 2 false true -325000000 -325 false false 3 false true -953000000 -953 false false No definition available. No authoritative reference available. false 25 Sales of marketable securities 2 us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 17000000 17 false false 2 false true 50000000 50 false false 3 false true 224000000 224 false false No definition available. No authoritative reference available. false 26 Purchases of marketable securities 2 us-gaap_PaymentsToAcquireInvestments us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -5000000 -5 false false 2 false true -17000000 -17 false false 3 false true -258000000 -258 false false No definition available. No authoritative reference available. false 27 Repayment of noncontrolling partner loan (Note 11) 2 nem_CashReceivedOnRepaymentOfCarriedInterest nem false debit duration monetary Cash received on repayment of carried interest. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 false false 3 false true 161000000 161 false false Cash received on repayment of carried interest. No authoritative reference available. false 28 Other 2 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -17000000 -17 false false 2 false true 16000000 16 false false 3 false true 23000000 23 false false No definition available. No authoritative reference available. true 29 Net cash used in investing activities of continuing operations 2 us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -2781000000 -2781 false false 2 false true -2146000000 -2146 false false 3 false true -2472000000 -2472 false false No definition available. No authoritative reference available. false 30 Net cash provided from (used in) investing activities of discontinued operations (Note 10) 2 us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true -11000000 -11 false false 3 false true 1359000000 1359 false false No definition available. No authoritative reference available. true 31 Net cash used in investing activities 2 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -2781000000 -2781 false false 2 false true -2157000000 -2157 false false 3 false true -1113000000 -1113 false false No definition available. No authoritative reference available. true 32 Financing activities: 1 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 33 Proceeds from debt, net 2 us-gaap_ProceedsFromIssuanceOfLongTermDebt us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 4299000000 4299 false false 2 false true 5078000000 5078 false false 3 false true 3001000000 3001 false false No definition available. No authoritative reference available. false 34 Repayment of debt 2 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -2731000000 -2731 false false 2 false true -4483000000 -4483 false false 3 false true -2036000000 -2036 false false No definition available. No authoritative reference available. false 35 Proceeds from stock issuance, net 2 us-gaap_ProceedsFromIssuanceOfCommonStock us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 1278000000 1278 false false 2 false true 29000000 29 false false 3 false true 51000000 51 false false No definition available. No authoritative reference available. false 36 Sale of subsidiary shares to noncontrolling interests (Note 11) 2 us-gaap_ProceedsFromMinorityShareholders us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 638000000 638 false false 2 false true 0 0 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 37 Acquisition of subsidiary shares from noncontrolling interests (Note 11) 2 us-gaap_PaymentsToMinorityShareholders us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -287000000 -287 false false 2 false true 0 0 false false 3 false true 0 0 false false No definition available. No authoritative reference available. false 38 Dividends paid to noncontrolling interests 2 us-gaap_PaymentsOfDividendsMinorityInterest us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -394000000 -394 false false 2 false true -389000000 -389 false false 3 false true -270000000 -270 false false No definition available. No authoritative reference available. false 39 Dividends paid to common stockholders 2 us-gaap_PaymentsOfDividendsCommonStock us-gaap true credit duration monetary No definition available. false false false false false false false false false 1 false true -196000000 -196 false false 2 false true -182000000 -182 false false 3 false true -181000000 -181 false false No definition available. No authoritative reference available. false 40 Purchase of Company share call options (Note 12) 2 nem_PurchaseOfCompanyShareCallOptions nem false credit duration monetary Purchase of Company share call options. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 false false 3 false true -366000000 -366 false false Purchase of Company share call options. No authoritative reference available. false 41 Issuance of Company share warrants (Note 12) 2 us-gaap_ProceedsFromIssuanceOfWarrants us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 0 0 false false 2 false true 0 0 false false 3 false true 248000000 248 false false No definition available. No authoritative reference available. false 42 Change in restricted cash and other 2 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -35000000 -35 false false 2 false true 74000000 74 false false 3 false true 11000000 11 false false No definition available. No authoritative reference available. true 43 Net cash provided from financing activities of continuing operations 2 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 2572000000 2572 false false 2 false true 127000000 127 false false 3 false true 458000000 458 false false No definition available. No authoritative reference available. false 44 Net cash provided from (used in) financing activities of discontinued operations (Note 10) 2 us-gaap_CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true -2000000 -2 false false 2 false true -4000000 -4 false false 3 false true 7000000 7 false false No definition available. No authoritative reference available. true 45 Net cash provided from financing activities 2 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 2570000000 2570 false false 2 false true 123000000 123 false false 3 false true 465000000 465 false false No definition available. No authoritative reference available. true 46 Effect of exchange rate changes on cash 1 us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents us-gaap true debit duration monetary No definition available. false false false false false false false false false 1 false true 44000000 44 false false 2 false true -54000000 -54 false false 3 false true 50000000 50 false false No definition available. No authoritative reference available. true 47 Net change in cash and cash equivalents 1 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration monetary No definition available. false false false false false false false false false 1 false true 2780000000 2780 false false 2 false true -795000000 -795 false false 3 false true 67000000 67 false false No definition available. No authoritative reference available. false 48 Cash and cash equivalents at beginning of period 1 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false true false false 1 false true 435000000 435 false false 2 false true 1230000000 1230 false false 3 false true 1163000000 1163 false false No definition available. No authoritative reference available. false 49 Cash and cash equivalents at end of period 1 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant monetary No definition available. false false false false false false false true false 1 true true 3215000000 3215 false false 2 true true 435000000 435 false false 3 true true 1230000000 1230 false false No definition available. No authoritative reference available. false false 3 47 false Millions UnKnown UnKnown false true