-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 YWXnpSnrduVRt3J1HN8bSw==

<SEC-DOCUMENT>0000028412-05-000090.txt : 20050808
<SEC-HEADER>0000028412-05-000090.hdr.sgml : 20050808
<ACCEPTANCE-DATETIME>20050808160412
ACCESSION NUMBER:		0000028412-05-000090
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20050804
FILED AS OF DATE:		20050808
DATE AS OF CHANGE:		20050808

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PIERGALLINI ALFRED A
		CENTRAL INDEX KEY:			0001198779

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10706
		FILM NUMBER:		051006062

	BUSINESS ADDRESS:	
		STREET 1:		11906 EAST DESERT TRAIL
		CITY:			SCOTTSDALE
		STATE:			AZ
		ZIP:			85259

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMERICA INC /NEW/
		CENTRAL INDEX KEY:			0000028412
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				381998421
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		500 WOODWARD AVENUE MC 3391
		STREET 2:		COMERICA TOWER AVE1ST FL
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226-3509
		BUSINESS PHONE:		313 222-9743

	MAIL ADDRESS:	
		STREET 1:		411 WEST LAFAYETTE MC 3419
		STREET 2:		ATTN: BRAD SCHWARTZ
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226-3419

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DETROITBANK CORP
		DATE OF NAME CHANGE:	19850311
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-08-04</periodOfReport>

    <issuer>
        <issuerCik>0000028412</issuerCik>
        <issuerName>COMERICA INC /NEW/</issuerName>
        <issuerTradingSymbol>CMA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198779</rptOwnerCik>
            <rptOwnerName>PIERGALLINI ALFRED A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>500 WOODWARD AVE.</rptOwnerStreet1>
            <rptOwnerStreet2>31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>DETROIT</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48226</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-08-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>787</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>46350</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Director Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>65.13</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>1999-05-15</value>
            </exerciseDate>
            <expirationDate>
                <value>2008-05-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Director Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>62.75</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2000-05-21</value>
            </exerciseDate>
            <expirationDate>
                <value>2009-05-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Director Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>57.15</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2002-05-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-05-20</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Director Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>64.50</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2003-05-21</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-05-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Director Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>43.63</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-05-20</value>
            </exerciseDate>
            <expirationDate>
                <value>2013-05-20</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Director Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>53.87</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-05-18</value>
            </exerciseDate>
            <expirationDate>
                <value>2014-05-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>1988-08-08</value>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>1988-08-08</value>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>319</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>319</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted stock units granted pursuant to the Comerica Incorporated Amended and Restated Incentive Plan for Non-Employee Directors. Each restricted stock unit represents an unfunded, unsecured right to receive one share of Comerica common stock.  The restricted stock units vest one year after the date of grant and are settled in stock one year after cessation of service on the board.</footnote>
        <footnote id="F2">Includes stock units held pursuant to deferred director plans, restricted stock units reported in Table I and shares purchased with reinvested dividends as of August 4, 2005.</footnote>
        <footnote id="F3">Each restricted stock unit represents a contingent right to receive one share of Comerica common stock.</footnote>
        <footnote id="F4">The restricted stock units vest one year after the date of grant.  Vested shares are settled one year after cessation of service on the board.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Robert W. Spencer, Jr., on behalf of Alfred A. Piergallini</signatureName>
        <signatureDate>2005-08-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>attach_1.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML><BODY><PRE>POWER OF ATTORNEY

Alfred A. Piergallini



Know all by these presents, that the undersigned hereby constitutes and appoints each of Jon

W. Bilstrom, Nicole V. Gersch, T. Cormac McCarthy, and Robert W. Spencer, Jr., signing singly,

the undersigned's true and lawful attorney-in-fact to:



(1)  execute for and on behalf of the undersigned, in the undersigned's

capacity as an officer and/or director of Comerica Incorporated (the

"Company"), Forms 3, 4 and 5 in accordance with Section 16(a) of

yhe Securities Exchange Act of 1934 and the rules thereunder;



(2)  do and perform any and all acts for and on behalf of the undersigned

which may be necessary or desirable to complete and execute any

such Form 3, 4 or 5 and timely file such form with the United States

Securities and Exchange Commission and any stock exchange or

similar authority; and



(3)  take any other action of any type whatsoever in connection with the

foregoing which, in the opinion of such attorney-in-fact, may be of

benefit to, in the best interest of, or legally required by, the

undersigned, it being understood that the documents executed by such

attorney-in-fact on behalf of the undersigned pursuant to this Power

of Attorney shall be in such form and shall contain such terms and

conditions as such attorney-in-fact may approve in such attorney-in-

fact's discretion.



The undersigned hereby grants to each such attorney-in-fact full power and authority to do

and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the

exercise of any of the rights and powers herein granted, as fully to all intents and all purposes as the

undersigned might or could do if personally present, with full power of substitution or revocation,

hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or

substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights

and powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in

serving in such capacity at the request of the undersigned, are not assuming, nor is the Company

assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities

Exchange Act of 1934.



The termination of any attorney-in-fact's employment by the Company, however caused, shall

operate as a termination of his or her powers and authorities hereunder, but shall not affect the

powers and authorities herein granted to any other party.



This Power of Attorney shall remain in full force and effect until the undersigned is no longer

required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and transactions in

securities issued by the Company, unless earlier revoked by the undersigned in a signed writing

delivered to the foregoing attorneys-in-fact at the then current mailing address of the Corporate Legal

Department of Comerica Incorporated.



All Powers of Attorney previously granted in connection with the foregoing matters hereby

are canceled and revoked.



IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be

executed and made effective as of this 26th day of July, 2005.





                                       /s/ Alfred A. Piergallini</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
