2.2.0.7falseBasis of Presentation (Policies)007010 - Disclosure - Basis of Presentation (Policies)truefalsefalsefalse1USDfalsefalseu000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u001Standardhttp://www.xbrl.org/2003/instancepurexbrli0u003Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0u002Standardhttp://www.xbrl.org/2003/instancesharesxbrli0$20qcom_NotesToFinancialStatementsAbstractqcomfalsenadurationNo definition available.falsefalsefalsefalsefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalsefalse00falsefalsefalsexbrli:stringItemTypestringNo definition available.false31us-gaap_RevenueRecognitionPolicyTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalsefalse00<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-STYLE: italic">Revenue Recognition.</font> Beginning in the first quarter of fiscal 2010, the Company elected to early adopt the Financial Accounting Standards Board’s (FASB) amended accounting guidance for revenue recognition that (a) removes tangible products containing software components and non-software components that function together to deliver the product’s essential functionality from the scope of software revenue recognition guidance; and (b) eliminates the use of the residual method for arrangements with multiple deliverables and requires entities to allocate revenue using the relative selling price method. This new guidance applies to applicable transactions originating or arrangements materially modified after September 27, 2009. The adoption of this new guidance did not have a material impact on the timing or pattern of revenue recognition.</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-STYLE: italic"></font></font> </div>Revenue Recognition. Beginning in the first quarter of fiscal 2010, the Company elected to early adopt the Financial Accounting Standards Board’s (FASB)falsefalsefalseus-types:textBlockItemTypetextblockDescribes an entity's accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction should be disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 13
-Section B
-Paragraph Question 1
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 22
-Paragraph 8, 12, 13
false41us-gaap_EarningsPerSharePolicyTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalselabelfalse1falsefalsefalsefalse00<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-STYLE: italic"><font style="LETTER-SPACING: 9pt">  </font>Earnings Per Common Share. </font>Basic earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding during the reporting period. Diluted earnings per common share is computed by dividing net income by the combination of dilutive common share equivalents, comprised of shares issuable under the Company’s share-based compensation plans and the weighted-average number of common shares outstanding during the reporting period. Dilutive common share equivalents include the dilutive effect of share equivalents, which is calculated based on the average share price for each period using the treasury stock method. Under the treasury stock method, the exercise price of an option, the amount of compensation cost, if any, for future service that the Company has not yet recognized, and the estimated tax benefits that would be recorded in paid-in capital, if any, when the award is settled are assumed to be used to repurchase shares in the current period. Share-based awards with market conditions are included in the computation of earnings per share if they are dilutive and if the established conditions have been satisfied or would have been satisfied at the reporting date. The incremental dilutive common share equivalents, calculated using the treasury stock method, for the three months and nine months ended June 27, 2010 were 13,039,000 and 16,303,000, respectively. The incremental dilutive common share equivalents, calculated using the treasury stock method, for the three months and nine months ended June 28, 2009 were 18,781,000 and 15,114,000, respectively.</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"> </div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Employee stock options to purchase approximately 163,146,000 and 145,464,000 shares of common stock during the three months and nine months ended June 27, 2010, respectively, and employee stock options to purchase approximately 134,515,000 and 149,528,000 shares of common stock during the three months and nine months ended June 28, 2009, were outstanding but not included in the computation of diluted earnings per common share because the effect on diluted earnings per share would be anti-dilutive. The computation of diluted earnings per share for the three months and nine months ended June 27, 2010 excluded 574,000 and 314,000 performance-based stock units issued during fiscal 2010, respectively, because the effect on diluted earnings per share would be anti-dilutive.</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"> </div></div>  Earnings Per Common Share. Basic earnings per common share is computed by dividing net income by the weighted-average number of common sharesfalsefalsefalseus-types:textBlockItemTypetextblockDiscloses the methodology and assumptions used to compute basic and diluted earnings (loss) per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 6, 8-16, 60
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