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Recently Issued Accounting Pronouncements (Details) $ in Millions | 8 Months Ended
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Sep. 05, 2020 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (After-Tax) | $ 34
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (Pre-Tax) | $ 44

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- Definition New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (After-Tax) + References No definition available. + Details
Name: | pep_NewAccountingPronouncementorChangeinAccountingPrincipleEffectofAdoptionQuantificationAfterTax
Namespace Prefix: | pep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification (Pre-Tax) + References No definition available. + Details
Name: | pep_NewAccountingPronouncementorChangeinAccountingPrincipleEffectofAdoptionQuantificationPreTax
Namespace Prefix: | pep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration