<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4/A</documentType><periodOfReport>2003-05-22</periodOfReport><dateOfOriginalSubmission>2003-05-22</dateOfOriginalSubmission>
    <issuer>
        <issuerCik>0000093410</issuerCik>
        <issuerName>CHEVRONTEXACO CORP</issuerName>
        <issuerTradingSymbol>CVX</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001194913</rptOwnerCik>
            <rptOwnerName>HILLS CARLA A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HILLS &amp; COMPANY INTL. CONSULTANTS</rptOwnerStreet1>
            <rptOwnerStreet2>1200-19TH STREET, NW, SUITE 201</rptOwnerStreet2>
            <rptOwnerCity>WASHINGTON</rptOwnerCity>
            <rptOwnerState>DC</rptOwnerState>
            <rptOwnerZipCode>20036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-05-22</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>1579</value><footnoteId id="F1"/></transactionShares><transactionPricePerShare><value>67.45</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>8126</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">Effective January 1, 2002, the retainer paid to non-employee Directors was $100,000 per annum ($75,000 in cash and $25,000 in dollar denominated deferred stock units).  The deferred stock units were credited to the non-employee Directors' accounts quarterly and reported on Form 4s in 2002 and through the 1st and 2nd quarter of 2003.  Effective May 22, 2003, the deferred stock units were credited to the non-employee Directors' accounts in a lump sum.  Therefore, the number of deferred stock units reported on the Form 4 filed May 22, 2003 was overstated by 191 deferred stock units (the allocations for the 1st and 2nd quarter of 2003).  The reporting person is filing an amended Form 4 to reflect the correct number of deferred stock units owned as of May 22, 2003. </footnote><footnote id="F2">This number includes dividend equivalent accruals under the Non-Employee Directors' Equity Compensation and Deferral Plan.</footnote></footnotes><remarks/><ownerSignature><signatureName>Patricia L. Tai on behalf of Carla A. Hills</signatureName><signatureDate>2003-12-04</signatureDate></ownerSignature></ownershipDocument>

