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v3.21.1

Income Taxes Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 20, 2021 | Mar. 21, 2020 | Dec. 26, 2020
Income Tax Disclosure [Abstract] |  |  |
Swiss Tax Reform (TRAF) | $ 0 | $ 0 | $ 72

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- Definition Swiss Tax Reform (TRAF) + References No definition available. + Details
Name: | pep_SwissTaxReformTRAF
Namespace Prefix: | pep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration