<SEC-DOCUMENT>0001949202-26-000006.txt : 20260303
<SEC-HEADER>0001949202-26-000006.hdr.sgml : 20260303
<ACCEPTANCE-DATETIME>20260303163714
ACCESSION NUMBER:		0001949202-26-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260227
FILED AS OF DATE:		20260303
DATE AS OF CHANGE:		20260303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			van der Laan Yvonne
		CENTRAL INDEX KEY:			0001949202
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34726
		FILM NUMBER:		26715289

	MAIL ADDRESS:	
		STREET 1:		C/O LYONDELLBASELL INDUSTRIES N.V.
		STREET 2:		DELFTSEPLEIN 27E
		CITY:			ROTTERDAM
		STATE:			P7
		ZIP:			3013AA

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LyondellBasell Industries N.V.
		CENTRAL INDEX KEY:			0001489393
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				980646235
		STATE OF INCORPORATION:			P7
		FISCAL YEAR END:			1231
		LEGAL ENTITY IDENTIFIER:    	BN6WCCZ8OVP3ITUUVN49

	BUSINESS ADDRESS:	
		STREET 1:		2800 POST OAK BLVD
		STREET 2:		SUITE 5100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
		BUSINESS PHONE:		713-309-7200

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		4TH FLOOR
		STREET 2:		ONE VINE STREET
		CITY:			LONDON
		PROVINCE COUNTRY:   	X0
		ZIP:			W1J 0AH
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-27</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001489393</issuerCik>
        <issuerName>LyondellBasell Industries N.V.</issuerName>
        <issuerTradingSymbol>LYB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001949202</rptOwnerCik>
            <rptOwnerName>van der Laan Yvonne</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2>ONE VINE STREET</rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>W1J 0AH</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>EVP, Circular &amp; Low Carbon Sol</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-27</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1052.00</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>57.52</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12258.00</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>12475.00</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24733.00</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On February 27, 2026 the reporting person's restricted stock units automatically vested 2,146 shares. 1,052 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.</footnote>
        <footnote id="F2">Includes 5,690 restricted stock units (&quot;RSUs&quot;) granted pursuant to the issuer's long-term incentive plan: 1,400 granted on February 22, 2024 that vest on February 22, 2027; 2,145 granted on February 27, 2025 that vest on February 27, 2027 and 2,145 granted on February 27, 2025 that vest on February 27, 2028.</footnote>
        <footnote id="F3">Includes 18,165 restricted stock units (&quot;RSUs&quot;) granted pursuant to the issuer's long-term incentive plan: 1,400 granted on February 22, 2024 that vest on February 22, 2027; 2,145 granted on February 27, 2025 that vest on February 27, 2027 and 2,145 granted on February 27, 2025 that vest on February 27, 2028. The 12,475 RSUs reported on this Form 4 vest as follows: 4,159 vest on February 28, 2027, 4,158 vest on February 28, 2028 and 4,158 vest on February 28, 2029.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Lara A. Mason, Attorney-in-Fact</signatureName>
        <signatureDate>2026-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
