-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 N2ENey+fOJvpoyLlE/fk8aJ+4frT+EizgUR8RjMsbIZ4tF+98/JT5f+0MMC2Stka
 BNJnd9AqymGrfXt5BklTIw==

<SEC-DOCUMENT>0001199456-04-000002.txt : 20040203
<SEC-HEADER>0001199456-04-000002.hdr.sgml : 20040203
<ACCEPTANCE-DATETIME>20040203153932
ACCESSION NUMBER:		0001199456-04-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040201
FILED AS OF DATE:		20040203

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRU ABELARDO E
		CENTRAL INDEX KEY:			0001199456

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01183
		FILM NUMBER:		04562888

	BUSINESS ADDRESS:	
		STREET 1:		7701 LEGACY DRIVE
		CITY:			PLANO
		STATE:			TX
		ZIP:			75266

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PEPSICO INC
		CENTRAL INDEX KEY:			0000077476
		STANDARD INDUSTRIAL CLASSIFICATION:	BEVERAGES [2080]
		IRS NUMBER:				131584302
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		700 ANDERSON HILL RD
		CITY:			PURCHASE
		STATE:			NY
		ZIP:			10577
		BUSINESS PHONE:		9142532000

	MAIL ADDRESS:	
		STREET 1:		700 ANDERSON HILL ROAD
		CITY:			PURCHASE
		STATE:			NY
		ZIP:			10577-1444

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PEPSI COLA CO
		DATE OF NAME CHANGE:	19700903
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-02-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000077476</issuerCik>
        <issuerName>PEPSICO INC</issuerName>
        <issuerTradingSymbol>PEP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001199456</rptOwnerCik>
            <rptOwnerName>BRU ABELARDO E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7701 LEGACY DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PLANO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75266</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chmn CEO FritoLay N. America</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>PepsiCo, Inc. Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-02-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>17492.00</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17492.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>PepsiCo, Inc. Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4492.00</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401(k)</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>47.25</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-02-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>70920.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-02-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-01-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>PepsiCo, Inc. Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>70920.00</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>70920.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This number reflects the number of restricted stock units granted to the reporting person as a portion of his compensation for serving as an officer of PepsiCo, Inc.  Restricted stock units are calculated on a one unit for one share basis.  The vesting with respect to these restricted stock units is contingent upon the achievement of pre-established performance targets.</footnote>
        <footnote id="F2">Reflects number of shares held under the reporting person's account in the PepsiCo 401(k) Plan as of 12/31/03.</footnote>
        <footnote id="F3">There is no price for this derivative security.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Abelardo E. Bru</signatureName>
        <signatureDate>2004-02-03</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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