Marketable Securities (Details) (USD $)
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3 Months Ended | ||
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Dec. 28, 2014
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Dec. 29, 2013
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Sep. 28, 2014
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Schedule of Marketable Securities [Line Items] | |||
Restricted Cash and Cash Equivalents, Current | $ 38,000,000us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue | ||
Foreign Currency Exchange Rate, Remeasurement | 1.51571us-gaap_ForeignCurrencyExchangeRateRemeasurement1 | ||
Total marketable securities - Current | 11,463,000,000us-gaap_MarketableSecuritiesCurrent | 9,658,000,000us-gaap_MarketableSecuritiesCurrent | |
Total marketable securities - Noncurrent | 13,815,000,000us-gaap_MarketableSecuritiesNoncurrent | 14,457,000,000us-gaap_MarketableSecuritiesNoncurrent | |
Trading Securities [Abstract] | |||
Trading - Current | 509,000,000us-gaap_TradingSecurities | 511,000,000us-gaap_TradingSecurities | |
Trading - Noncurrent | 621,000,000qcom_TradingSecuritiesNoncurrent | 642,000,000qcom_TradingSecuritiesNoncurrent | |
Net losses recognized on debt securities classified as trading held at the end of the period | 12,000,000us-gaap_TradingSecuritiesUnrealizedHoldingGainLoss | 0us-gaap_TradingSecuritiesUnrealizedHoldingGainLoss | |
Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current | 10,954,000,000us-gaap_AvailableForSaleSecuritiesCurrent | 9,147,000,000us-gaap_AvailableForSaleSecuritiesCurrent | |
Available-for-sale - Noncurrent | 12,410,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent | 13,025,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent | |
Fair Value Option [Abstract] | |||
Effective ownership interest in debt fund (fair value option) | 26.00%qcom_EffectiveOwnershipInterestInDebtMutualFundFairValueOption | ||
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held | 0us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld | 0us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld | |
U.S. Treasury securities and government-related securities [Member] | |||
Schedule of Marketable Securities [Line Items] | |||
Restricted Marketable Securities |
146,000,000qcom_RestrictedMarketableSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
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Trading Securities [Abstract] | |||
Trading - Current |
314,000,000us-gaap_TradingSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
320,000,000us-gaap_TradingSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
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Trading - Noncurrent |
30,000,000qcom_TradingSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
38,000,000qcom_TradingSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
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Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
500,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
805,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
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Available-for-sale - Noncurrent |
660,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
392,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_USTreasuryAndGovernmentMember |
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Corporate bonds and notes | |||
Schedule of Marketable Securities [Line Items] | |||
Restricted Marketable Securities |
2,800,000,000qcom_RestrictedMarketableSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
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Trading Securities [Abstract] | |||
Trading - Current |
195,000,000us-gaap_TradingSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
191,000,000us-gaap_TradingSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
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Trading - Noncurrent |
367,000,000qcom_TradingSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
367,000,000qcom_TradingSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
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Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
7,612,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
6,274,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
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Available-for-sale - Noncurrent |
7,420,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
7,649,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_CorporateDebtSecuritiesMember |
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Mortgage- and asset-backed securities | |||
Schedule of Marketable Securities [Line Items] | |||
Restricted Marketable Securities |
777,000,000qcom_RestrictedMarketableSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
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Trading Securities [Abstract] | |||
Trading - Current |
0us-gaap_TradingSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
0us-gaap_TradingSecurities / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
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Trading - Noncurrent |
224,000,000qcom_TradingSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
237,000,000qcom_TradingSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
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Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
1,111,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
1,063,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
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Available-for-sale - Noncurrent |
201,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
195,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AssetBackedSecuritiesMember |
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Auction rate securities | |||
Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
0us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember |
0us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember |
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Available-for-sale - Noncurrent |
47,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember |
83,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_AuctionRateSecuritiesMember |
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Common and preferred stock | |||
Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
1,008,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = qcom_CommonAndPreferredStockMember |
192,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = qcom_CommonAndPreferredStockMember |
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Available-for-sale - Noncurrent |
805,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = qcom_CommonAndPreferredStockMember |
1,605,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = qcom_CommonAndPreferredStockMember |
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Equity funds | |||
Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
0us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember |
0us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember |
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Available-for-sale - Noncurrent |
763,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember |
541,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_EquityFundsMember |
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Debt funds | |||
Available-for-sale Securities [Abstract] | |||
Available-for-sale - Current |
723,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
813,000,000us-gaap_AvailableForSaleSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
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Available-for-sale - Noncurrent |
2,514,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
2,560,000,000us-gaap_AvailableForSaleSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
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Fair Value Option [Abstract] | |||
Fair value option - Current |
0us-gaap_OtherMarketableSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
0us-gaap_OtherMarketableSecuritiesCurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
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Fair value option - Noncurrent |
784,000,000us-gaap_OtherMarketableSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
790,000,000us-gaap_OtherMarketableSecuritiesNoncurrent / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
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(Decrease) increase in fair value recognized in investment income |
(6,000,000)us-gaap_FairValueOptionChangesInFairValueGainLoss1 / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
13,000,000us-gaap_FairValueOptionChangesInFairValueGainLoss1 / us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis = us-gaap_OtherDebtSecuritiesMember |
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United Kingdom, Pounds | |||
Schedule of Marketable Securities [Line Items] | |||
Threshold To Set Aside Marketable Securities |
1,900,000,000qcom_ThresholdToSetAsideMarketableSecurities / us-gaap_CurrencyAxis = currency_GBP |
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United States of America, Dollars | |||
Schedule of Marketable Securities [Line Items] | |||
Threshold To Set Aside Marketable Securities |
$ 2,800,000,000qcom_ThresholdToSetAsideMarketableSecurities / us-gaap_CurrencyAxis = currency_USD |
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- Definition
This element represents the effective ownership interest in debt mutual fund for which the entity elected fair value option. No definition available.
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- Definition
The fair value of marketable securities which are restricted as to withdrawal or usage. No definition available.
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Threshold To Set Aside Marketable Securities No definition available.
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- Definition
Financial instruments that are bought and held principally for the purpose of selling them and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer, or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition. No definition available.
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Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Foreign exchange rate used to remeasure amounts denominated in a currency other than functional currency into functional currency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total debt and equity financial instruments including: (1) securities held-to-maturity and (2) securities available-for-sale that will be held for the long-term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of other investments not classified as trading, available-for-sale or held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
All other debt and equity financial instruments, which aren't categorized as available-for-sale, or held-to-maturity and which are not otherwise listed in the existing taxonomy, intended to be held longer than one year from the balance sheet date or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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