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Fair Value Measurements Nonrecurring Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified |
6 Months Ended | |
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Mar. 29, 2015
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Mar. 30, 2014
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| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | $ 27us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | |
| Long-lived assets impairment charges | 444us-gaap_ImpairmentOfLongLivedAssetsHeldForUse | |
| Goodwill, Impaired [Abstract] | ||
| Goodwill impairment charge | 16us-gaap_GoodwillImpairmentLoss | |
| Unallocated Other Income [Member] | ||
| Goodwill, Impaired [Abstract] | ||
| Goodwill impairment charge |
$ 104us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = qcom_UnallocatedOtherIncomeMember |
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- Details
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- Definition
Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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