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Basis of Presentation and Our Divisions (Narrative) (Details) | Dec. 29, 2018 country
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Basis Of Presentation And Our Divisions [Line Items] |
Manufacture and sell in (number of countries) | 200
Maximum |
Basis Of Presentation And Our Divisions [Line Items] |
Noncontrolling Interest, Ownership Percentage by Parent | 50.00%

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- Definition Basis of presentation and our divisions + References No definition available. + Details
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Namespace Prefix: | pep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of countries in which the entity operates as of balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |