<SEC-DOCUMENT>0000827052-18-000098.txt : 20180430
<SEC-HEADER>0000827052-18-000098.hdr.sgml : 20180430
<ACCEPTANCE-DATETIME>20180430141436
ACCESSION NUMBER:		0000827052-18-000098
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180426
FILED AS OF DATE:		20180430
DATE AS OF CHANGE:		20180430

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Morris James T
		CENTRAL INDEX KEY:			0001672206

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09936
		FILM NUMBER:		18788621

	MAIL ADDRESS:	
		STREET 1:		2244 WALNUT GROVE AVENUE
		CITY:			ROSEMEAD
		STATE:			CA
		ZIP:			91770

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EDISON INTERNATIONAL
		CENTRAL INDEX KEY:			0000827052
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				954137452
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2244 WALNUT GROVE AVE,
		STREET 2:		P O BOX 800
		CITY:			ROSEMEAD
		STATE:			CA
		ZIP:			91770
		BUSINESS PHONE:		(626) 302-2222

	MAIL ADDRESS:	
		STREET 1:		2244 WALNUT GROVE AVE,
		STREET 2:		P O BOX 800
		CITY:			ROSEMEAD
		STATE:			CA
		ZIP:			91770

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SCECORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_152511206219224.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-04-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000827052</issuerCik>
        <issuerName>EDISON INTERNATIONAL</issuerName>
        <issuerTradingSymbol>EIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001672206</rptOwnerCik>
            <rptOwnerName>Morris James T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2244 WALNUT GROVE AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROSEMEAD</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>91770</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-04-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2147</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2147.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4192.1187</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">1 for 1:  Each phantom stock unit, also called a deferred stock unit, is equal in value to one share of Edison International Common Stock.</footnote>
        <footnote id="F2">The phantom stock units were granted to the Reporting Person upon re-election as a director at the Issuer's annual meeting.</footnote>
        <footnote id="F3">The phantom stock units are to be settled upon the Reporting Person's retirement, resignation, death or disability, unless another date(s) is elected by the Reporting Person.</footnote>
        <footnote id="F4">Includes additional phantom stock units acquired pursuant to dividend reinvestment and exempt from reporting under Section 16(a).</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ James T. Morris</signatureName>
        <signatureDate>2018-04-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
