<SEC-DOCUMENT>0001127602-18-002878.txt : 20180129
<SEC-HEADER>0001127602-18-002878.hdr.sgml : 20180129
<ACCEPTANCE-DATETIME>20180129181217
ACCESSION NUMBER:		0001127602-18-002878
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180126
FILED AS OF DATE:		20180129
DATE AS OF CHANGE:		20180129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RITCHIE KEVIN J
		CENTRAL INDEX KEY:			0001288431

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03761
		FILM NUMBER:		18557040

	MAIL ADDRESS:	
		STREET 1:		12500 TI BLVD.
		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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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-01-26</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001288431</rptOwnerCik>
            <rptOwnerName>RITCHIE KEVIN J</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>Sr. Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>61500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>44.09</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>208489</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>19705</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>109.62</value>
                    <footnoteId id="F1"/>
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                </transactionAcquiredDisposedCode>
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                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2018-01-25</value>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>34324</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>110.59</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7471</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>111.14</value>
                    <footnoteId id="F3"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
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                    <value>18158</value>
                    <footnoteId id="F4"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>165147</value>
                </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>44.09</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>61500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <value>2024-01-23</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>61500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>NQ Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>110.15</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>86135</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F6"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-01-25</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>86135</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>86135</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <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 $109.11 to $110.08. The Issuer undertakes to provide upon request a detailed breakout of the sale prices and the number of shares sold at each price.</footnote>
        <footnote id="F2">The price in Table 1 is a weighted average sale price. The sales were at prices ranging from $110.10 to $110.98. The Issuer undertakes to provide upon request a detailed breakout of the sale prices and the number of shares sold at each price.</footnote>
        <footnote id="F3">The price in Table 1 is a weighted average sale price. The sales were at prices ranging from $111.00 to $111.35. The Issuer undertakes to provide upon request a detailed breakout of the sale prices and the number of shares sold at each price.</footnote>
        <footnote id="F4">Award of restricted stock units pursuant to 2009 Long-Term Incentive Plan.</footnote>
        <footnote id="F5">The option became exercisable in four equal annual installments beginning on January 23, 2015.</footnote>
        <footnote id="F6">The option becomes exercisable in four equal annual installments beginning on January 25, 2019.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Muriel C. McFarling, Attorney in Fact</signatureName>
        <signatureDate>2018-01-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC): EXHIBIT 24
<TEXT>
Exhibit 24

AUTHORIZATION


I hereby authorize Cynthia Hoff Trochu, Katharine Kane, Muriel C. McFarling,
Jane S. Nahra, Leslie O. Mba, Ben M. Carter, and Erin E. Hilton or any one
of them to sign and file on my behalf any and all forms required by the
Securities and Exchange Commission pursuant to Section 16 of the Securities
Exchange Act of 1934 (the ?Exchange Act?) relating to the reporting of
beneficial ownership of equity securities of Texas Instruments Incorporated
(the ?Company?), and of changes in such beneficial ownership, as well as any
and all representation letters that may be required in connection with sales
by me of equity securities of the Company, together with any and all
amendments to the foregoing.  This authorization shall be effective on and
after the date set forth below and shall continue in effect, unless earlier
revoked by me in writing, until I am no longer required to file such forms
and letters provided, however, that this authorization shall be deemed
revoked with respect to any individual named above upon such individual?s
termination of active service with the Company.

I acknowledge that the persons authorized hereunder are not assuming, nor is
the Company assuming, any of my responsibilities to comply with Section 16
of the Exchange Act and other relevant securities laws.


Dated as of the 19th day of January 2018.

/s/ Kevin J. Ritchie
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
