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Acquisitions (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 3 Months Ended
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Dec. 27, 2014 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 27, 2014 | Sep. 28, 2013
Series of Individually Immaterial Business Acquisitions [Member] |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |
Business Combinations During Period, Consideration Transferred | $ 963 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember | $ 925 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember | $ 638 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember |  |
Axxia Networking Business of Avago Technologies Limited [Member] |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |
Business Combinations During Period, Consideration Transferred |  |  |  | 650 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = intc_AxxiaNetworkingBusinessofAvagoTechnologiesLimitedMember |
Stonesoft Oyj [Member] |  |  |  |  |
Acquisitions [Abstract] |  |  |  |  |
Business Combinations During Period, Consideration Transferred |  |  |  |  | $ 381 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = intc_StonesoftOyjMember

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