DETROIT, Dec 16, 2004 /PRNewswire-FirstCall via COMTEX/ -- Comerica Incorporated
(NYSE: CMA) will announce its fourth quarter and full year 2004 earnings prior
to the market opening on Thursday, January 20, 2005.

(Logo: http://www.newscom.com/cgi-bin/prnh/20010807/CMALOGO )

Comerica will host a conference call to review fourth quarter and full
year 2004 financial results at 8 a.m. ET Thursday, January 20, 2005.
Interested parties may access the conference call by calling (706) 679-5261
(event ID No. 2941511). The call also will be accessible on the Internet at
http://www.comerica.com . A replay of the conference call will be available
approximately two hours following the call through Sunday, February 20, 2005.
The conference call replay can be accessed by calling (800) 642-1687 or (706)
645-9291 (event ID No. 2941511). The replay also will be accessible via
Comerica's "Investor Relations" page at http://www.comerica.com .

Comerica Incorporated is a financial services company headquartered in
Detroit, strategically aligned into the Business Bank, Small Business &
Personal Financial Services, and Wealth & Institutional Management. Comerica
focuses on relationships, and helping businesses and people be successful.
Comerica reported total assets of $53 billion at September 30, 2004. To
receive e-mail alerts of breaking Comerica news, go to
http://www.comerica.com/newsalerts .

SOURCE Comerica Incorporated

Media Contacts: Sharon R. McMurray, +1-313-222-4881, Wayne J.
Mielke, +1-313-222-4732, or Investor Contact: Helen L. Arsenault,
+1-313-222-2840, all of Comerica Incorporated
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