<SEC-DOCUMENT>0001127602-21-002225.txt : 20210121
<SEC-HEADER>0001127602-21-002225.hdr.sgml : 20210121
<ACCEPTANCE-DATETIME>20210121131114
ACCESSION NUMBER:		0001127602-21-002225
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210119
FILED AS OF DATE:		20210121
DATE AS OF CHANGE:		20210121

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bernstein David
		CENTRAL INDEX KEY:			0001406203

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09610
		FILM NUMBER:		21541328

	MAIL ADDRESS:	
		STREET 1:		3655 NW 87TH AVENUE
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33178

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CARNIVAL CORP
		CENTRAL INDEX KEY:			0000815097
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER TRANSPORTATION [4400]
		IRS NUMBER:				591562976
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		3655 N W 87TH AVE
		STREET 2:		PO BOX 1347
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33178-2428
		BUSINESS PHONE:		3055992600

	MAIL ADDRESS:	
		STREET 1:		3655 N W 87TH AVE
		STREET 2:		PO BOX 1347
		CITY:			MIAMI
		STATE:			FL
		ZIP:			33178

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CARNIVAL CRUISE LINES INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-01-19</periodOfReport>

    <issuer>
        <issuerCik>0000815097</issuerCik>
        <issuerName>CARNIVAL CORP</issuerName>
        <issuerTradingSymbol>CCL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001406203</rptOwnerCik>
            <rptOwnerName>Bernstein David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>CARNIVAL CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>3655 NW 87TH AVE</rptOwnerStreet2>
            <rptOwnerCity>MIAMI</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33178</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>CFO &amp; CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-01-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>102056</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>176212</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-01-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>24296</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>20.9787</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>151916</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Grant of restricted stock units (&quot;RSUs&quot;) made pursuant to the Carnival Corporation 2020 Stock Plan. Grant of RSUs represent a hypothetical interest in Carnival Corporation common stock. The RSUs will vest on a 3-year pro-rata basis on the anniversary dates of the grant. The RSUs will accumulate dividend equivalents and may only be settled in shares.</footnote>
        <footnote id="F2">The grant was approved by the Compensation Committee as a total value to be received in the form of RSUs. The Compensation Committee also approved that the number of RSUs were determined by dividing the value by the closing price on date of grant.</footnote>
        <footnote id="F3">This transaction was executed in multiple trades at prices ranging from $20.93 to $21.005. The price reported reflects the average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ David Bernstein</signatureName>
        <signatureDate>2021-01-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
