<SEC-DOCUMENT>0001127602-24-007655.txt : 20240229
<SEC-HEADER>0001127602-24-007655.hdr.sgml : 20240229
<ACCEPTANCE-DATETIME>20240229170841
ACCESSION NUMBER:		0001127602-24-007655
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240227
FILED AS OF DATE:		20240229
DATE AS OF CHANGE:		20240229

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hess Carl Aaron
		CENTRAL INDEX KEY:			0001435988
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16503
		FILM NUMBER:		24704987

	MAIL ADDRESS:	
		STREET 1:		901 NORTH GLEBE RD
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WILLIS TOWERS WATSON PLC
		CENTRAL INDEX KEY:			0001140536
		STANDARD INDUSTRIAL CLASSIFICATION:	INSURANCE AGENTS BROKERS & SERVICES [6411]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O WILLIS GROUP LIMITED
		STREET 2:		51 LIME STREET
		CITY:			LONDON ENGLAND
		STATE:			X0
		ZIP:			EC3M 7DQ
		BUSINESS PHONE:		44-20-3124-6000

	MAIL ADDRESS:	
		STREET 1:		C/O WILLIS GROUP LIMITED
		STREET 2:		51 LIME STREET
		CITY:			LONDON ENGLAND
		STATE:			X0
		ZIP:			EC3M 7DQ

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WILLIS GROUP HOLDINGS PLC
		DATE OF NAME CHANGE:	20100104

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WILLIS GROUP HOLDINGS LTD
		DATE OF NAME CHANGE:	20010514
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-02-27</periodOfReport>

    <issuer>
        <issuerCik>0001140536</issuerCik>
        <issuerName>WILLIS TOWERS WATSON PLC</issuerName>
        <issuerTradingSymbol>WTW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001435988</rptOwnerCik>
            <rptOwnerName>Hess Carl Aaron</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O WILLIS GROUP LIMITED</rptOwnerStreet1>
            <rptOwnerStreet2>51 LIME STREET</rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>EC3M 7DQ</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares, nominal value $0.000304635 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2024-02-27</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4213</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>74915.862</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares, nominal value $0.000304635 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2024-02-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>159</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>275.06</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>74756.862</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents the number of performance-based restricted share units earned upon the certification of the achievement of certain pre-established performance goals based on three-year annualized total shareholder return during the three-year performance period that ended on December 31, 2023, each of which earned unit represents the right to receive one ordinary share of the Issuer upon the satisfaction of the service-based vesting requirement on July 20, 2024, subject to the terms of the award agreement. This number also includes the number of ordinary shares of the Issuer that are issuable pursuant to the dividend equivalent right under the terms of the award agreement providing for the accrual of dividends in the form of additional restricted share units that vest and are payable at the same time as the underlying performance-based restricted share units.</footnote>
        <footnote id="F2">Represents the number of ordinary shares of the Issuer withheld by the Issuer from the ordinary shares that are eventually eligible to be issued upon the vesting date of July 20, 2024 to satisfy the reporting person's FICA and income tax withholding obligations relating to the number of performance-based restricted share units that were deemed to be earned as of the performance goal attainment level certification date and to be eligible to vest on the vesting date and based on the reporting person's retirement-vesting eligibility status as of the performance goal attainment level certification date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Carl A. Hess by Elaine Wiggins, Attorney-in-Fact (power of attorney previously filed)</signatureName>
        <signatureDate>2024-02-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
