Name:	qcom_NetShareBasedAwardsGrantedInFiscalYearAsPercentOfTotalOutstandingStockAtBeginningOfFiscalYear
Namespace Prefix:	qcom_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The number of shares reserved for issuance under stock option agreements assumed as a result of acquisitions.

No definition available.

Name:	qcom_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumed
Namespace Prefix:	qcom_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Represents total share-based awards granted in a fiscal year as a percentage of the total number of stock outstanding at the end of each respective fiscal year.

No definition available.

Name:	qcom_TotalShareBasedAwardsGrantedInFiscalYearAsPercentOfTotalOutstandingStockAtEndOfFiscalYear
Namespace Prefix:	qcom_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901