<SEC-DOCUMENT>0001127602-19-016802.txt : 20190501
<SEC-HEADER>0001127602-19-016802.hdr.sgml : 20190501
<ACCEPTANCE-DATETIME>20190501183739
ACCESSION NUMBER:		0001127602-19-016802
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190429
FILED AS OF DATE:		20190501
DATE AS OF CHANGE:		20190501

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TROCHU CYNTHIA HOFF
		CENTRAL INDEX KEY:			0001649112

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03761
		FILM NUMBER:		19789144

	MAIL ADDRESS:	
		STREET 1:		12500 TI BOULEVARD
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75243

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TEXAS INSTRUMENTS INC
		CENTRAL INDEX KEY:			0000097476
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				750289970
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		P.O. BOX 660199
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75266
		BUSINESS PHONE:		9729953773

	MAIL ADDRESS:	
		STREET 1:		12500 TI BLVD
		STREET 2:		PO BOX 660199
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75266
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-04-29</periodOfReport>

    <issuer>
        <issuerCik>0000097476</issuerCik>
        <issuerName>TEXAS INSTRUMENTS INC</issuerName>
        <issuerTradingSymbol>TXN</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001649112</rptOwnerCik>
            <rptOwnerName>TROCHU CYNTHIA HOFF</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>12500 TI BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75243</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SVP, Secretary &amp; Gen Counsel</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-04-29</value>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
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                    <value>19762</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>53.94</value>
                </transactionPricePerShare>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>79.26</value>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                </transactionShares>
                <transactionPricePerShare>
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                    <footnoteId id="F1"/>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
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            </securityTitle>
            <transactionDate>
                <value>2019-04-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                </transactionShares>
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                    <value>117.0985</value>
                    <footnoteId id="F2"/>
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                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>53.94</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-04-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>19762</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2025-01-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>19762</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
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            </securityTitle>
            <conversionOrExercisePrice>
                <value>52.93</value>
            </conversionOrExercisePrice>
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                <value>2019-04-29</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
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            <expirationDate>
                <value>2026-01-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>20000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>43693</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <derivativeTransaction>
            <securityTitle>
                <value>NQ Stock Option (Right to Buy)</value>
            </securityTitle>
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                <value>2019-04-29</value>
            </transactionDate>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <value>2027-01-26</value>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>41559</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The price in Table 1 is a weighted average sale price. The sales were at prices ranging from $116.02 to $117.00. The Issuer undertakes to provide upon request a detailed breakout of the sale prices and the number of shares sold at each price set forth in footnotes (1) and (2) to this Form 4.</footnote>
        <footnote id="F2">The price in Table 1 is a weighted average sale price. The sales were at prices ranging from $117.01 to $117.24. The Issuer undertakes to provide upon request a detailed breakout of the sale prices and the number of shares sold at each price set forth in footnotes (2) and (3) to this Form 4.</footnote>
        <footnote id="F3">The option becomes exercisable in four equal annual installments beginning on January 28, 2016.</footnote>
        <footnote id="F4">The option becomes exercisable in four equal annual installments beginning on January 29, 2017.</footnote>
        <footnote id="F5">The option becomes exercisable in four equal annual installments beginning on January 26, 2018.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Muriel C. McFarling, Attorney in Fact</signatureName>
        <signatureDate>2019-05-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
