This item represents the disclosure of the components of certain financial statement captions, including but not limited to, accounts receivable, inventories, property, plant, and equipment, goodwill and other intangible assets, and other current liabilities.

No definition available.

Name:	qcom_CompositionOfCertainFinancialStatementCaptionsTextBlock
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Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

Name:	qcom_NotesToFinancialStatementsAbstract
Namespace Prefix:	qcom_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration