1.0.0.3falseCONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)In Millionsfalse1$falsefalseu000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u001Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0false2$falsefalseu000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u001Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli031us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstractus-gaaptruenadurationstringNo definition available.falsefalsefalsefalsefalsetruefalsefalsefalse1falsefalse00falsefalse2falsefalse00falsefalseNo definition available.false42us-gaap_NetIncomeLossus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1truetrue841000000841falsefalse2truetrue341000000341falsefalseNo definition available.No authoritative reference available.false52us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstractus-gaaptruenadurationstringNo definition available.falsefalsefalsefalsefalsetruefalsefalsefalse1falsefalse00falsefalse2falsefalse00falsefalseNo definition available.false63us-gaap_DepreciationAndAmortizationus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue162000000162falsefalse2falsetrue152000000152falsefalseNo definition available.No authoritative reference available.false73qcom_RevenuesRelatedToNonMonetaryExchangesqcomfalsenadurationmonetaryThe amount of revenue recognized during the period related to nonmonetary consideration received. As a noncash item, it is...falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-37000000-37falsefalse2falsetrue-29000000-29falsefalseThe amount of revenue recognized during the period related to nonmonetary consideration received. As a noncash item, it is added to net income when calculating cash provided by (used in) operations using the indirect method.No authoritative reference available.false83us-gaap_DeferredIncomeTaxExpenseBenefitus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue3200000032falsefalse2falsetrue4500000045falsefalseNo definition available.No authoritative reference available.false93us-gaap_ShareBasedCompensationus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue151000000151falsefalse2falsetrue145000000145falsefalseNo definition available.No authoritative reference available.false103us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivitiesus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-13000000-13falsefalse2falsetrue-16000000-16falsefalseNo definition available.No authoritative reference available.false113us-gaap_GainLossOnSaleOfInvestmentsus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-102000000-102falsefalse2falsetrue3300000033falsefalseNo definition available.No authoritative reference available.false123us-gaap_ImpairmentOfInvestmentsus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue5700000057falsefalse2falsetrue392000000392falsefalseNo definition available.No authoritative reference available.false133us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOtherus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue40000004falsefalse2falsetrue-14000000-14falsefalseNo definition available.No authoritative reference available.false142us-gaap_IncreaseDecreaseInOperatingCapitalAbstractus-gaaptruenadurationstringNo definition available.falsefalsefalsefalsefalsetruefalsefalsefalse1falsefalse00falsefalse2falsefalse00falsefalseNo definition available.false153us-gaap_IncreaseDecreaseInReceivablesus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue8700000087falsefalse2falsetrue27160000002716falsefalseNo definition available.No authoritative reference available.false163us-gaap_IncreaseDecreaseInInventoriesus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue101000000101falsefalse2falsetrue6500000065falsefalseNo definition available.No authoritative reference available.false173us-gaap_IncreaseDecreaseInOtherOperatingAssetsus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-32000000-32falsefalse2falsetrue-19000000-19falsefalseNo definition available.No authoritative reference available.false183us-gaap_IncreaseDecreaseInAccountsPayableTradeus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-226000000-226falsefalse2falsetrue-192000000-192falsefalseNo definition available.No authoritative reference available.false193qcom_IncreaseDecreaseInPayrollBenefitsAndOtherLiabilitiesqcomfalsenadurationmonetaryThe net change during the
reporting period in the aggregate amount of pension, postretirement, workers'
compensation, and...falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-124000000-124falsefalse2falsetrue-54000000-54falsefalseThe net change during the
reporting period in the aggregate amount of pension, postretirement, workers'
compensation, and other similar obligations and liabilities combined with
the net change during the reporting period in other expenses incurred but
not yet paid. This element should be used when there is no other more specific
or appropriate element.No authoritative reference available.false203us-gaap_IncreaseDecreaseInDeferredRevenueus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue338000000338falsefalse2falsetrue-64000000-64falsefalseNo definition available.No authoritative reference available.false212us-gaap_NetCashProvidedByUsedInOperatingActivitiesus-gaaptruenadurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue12390000001239falsefalse2falsetrue35010000003501falsefalseNo definition available.No authoritative reference available.true221us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstractus-gaaptruenadurationstringNo definition available.falsefalsefalsefalsefalsetruefalsefalsefalse1falsefalse00falsefalse2falsefalse00falsefalseNo definition available.false232us-gaap_PaymentsToAcquireProductiveAssetsus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-88000000-88falsefalse2falsetrue-234000000-234falsefalseNo definition available.No authoritative reference available.false242us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-2098000000-2098falsefalse2falsetrue-2586000000-2586falsefalseNo definition available.No authoritative reference available.false252us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue20130000002013falsefalse2falsetrue13730000001373falsefalseNo definition available.No authoritative reference available.false262us-gaap_ProceedsFromCollectionOfOtherReceivablesus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue80000008falsefalse2falsetrue202000000202falsefalseNo definition available.No authoritative reference available.false272qcom_OtherInvestmentsAndAcquisitionsNetOfCashAcquiredqcomfalsedebitdurationmonetaryThe cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase and the cash...falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-6000000-6falsefalse2falsetrue-14000000-14falsefalseThe cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase and the cash outflow associated with other investments held by the entity for investment purposes not otherwise defined in the taxonomy.No authoritative reference available.false282qcom_ChangeInCollateralHeldUnderSecuritiesLendingqcomfalsenadurationmonetaryThe net change during the period in the carrying amount (fair value) of securities held that had been pledged by...falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue00falsefalse2falsetrue162000000162falsefalseThe net change during the period in the carrying amount (fair value) of securities held that had been pledged by counterparties under financing and lending arrangements, pursuant to which the entity has the right by agreement or custom to sell ore repledge such securities.No authoritative reference available.false292us-gaap_PaymentsForProceedsFromOtherInvestingActivitiesus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-1000000-1falsefalse2falsetrue-4000000-4falsefalseNo definition available.No authoritative reference available.false302us-gaap_NetCashProvidedByUsedInInvestingActivitiesus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-172000000-172falsefalse2falsetrue-1101000000-1101falsefalseNo definition available.No authoritative reference available.true311us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstractus-gaaptruenadurationstringNo definition available.falsefalsefalsefalsefalsetruefalsefalsefalse1falsefalse00falsefalse2falsefalse00falsefalseNo definition available.false322us-gaap_ProceedsFromIssuanceOfCommonStockus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue152000000152falsefalse2falsetrue2600000026falsefalseNo definition available.No authoritative reference available.false332us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivitiesus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue1300000013falsefalse2falsetrue1600000016falsefalseNo definition available.No authoritative reference available.false342us-gaap_PaymentsForRepurchaseOfCommonStockus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue00falsefalse2falsetrue-285000000-285falsefalseNo definition available.No authoritative reference available.false352us-gaap_PaymentsOfDividendsus-gaaptruecreditdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-284000000-284falsefalse2falsetrue00falsefalseNo definition available.No authoritative reference available.false362qcom_ChangeInObligationUnderSecuritiesLendingqcomfalsenadurationmonetaryThe change in fair value of collateral received by the entity associated with securities borrowed that must be returned if...falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue00falsefalse2falsetrue-162000000-162falsefalseThe change in fair value of collateral received by the entity associated with securities borrowed that must be returned if the counterparty fulfills its obligations. The collateral appears on the balance sheet as a liability and has a corresponding asset that appears on the balance sheet called collateral held under securities lending.No authoritative reference available.false372us-gaap_ProceedsFromPaymentsForOtherFinancingActivitiesus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-1000000-1falsefalse2falsetrue-1000000-1falsefalseNo definition available.No authoritative reference available.false382us-gaap_NetCashProvidedByUsedInFinancingActivitiesus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-120000000-120falsefalse2falsetrue-406000000-406falsefalseNo definition available.No authoritative reference available.true391us-gaap_EffectOfExchangeRateOnCashAndCashEquivalentsus-gaaptruedebitdurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue-4000000-4falsefalse2falsetrue-8000000-8falsefalseNo definition available.No authoritative reference available.false401us-gaap_CashAndCashEquivalentsPeriodIncreaseDecreaseus-gaaptruenadurationmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1falsetrue943000000943falsefalse2falsetrue19860000001986falsefalseNo definition available.No authoritative reference available.true411us-gaap_CashAndCashEquivalentsAtCarryingValueus-gaaptruedebitinstantmonetaryNo definition available.falsefalsefalsefalsefalsefalsetruefalsefalse1falsetrue27170000002717falsefalse2falsetrue18400000001840falsefalseNo definition available.No authoritative reference available.false421us-gaap_CashAndCashEquivalentsAtCarryingValueus-gaaptruedebitinstantmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsetruefalse1truetrue36600000003660falsefalse2truetrue38260000003826falsefalseNo definition available.No authoritative reference available.falsefalse240falseMillionsUnKnownUnKnownfalsetrue