<SEC-DOCUMENT>0000028412-22-000072.txt : 20220223
<SEC-HEADER>0000028412-22-000072.hdr.sgml : 20220223
<ACCEPTANCE-DATETIME>20220223161913
ACCESSION NUMBER:		0000028412-22-000072
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20220217
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20220223
DATE AS OF CHANGE:		20220223

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMERICA INC /NEW/
		CENTRAL INDEX KEY:			0000028412
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				000006021
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10706
		FILM NUMBER:		22663966

	BUSINESS ADDRESS:	
		STREET 1:		1717 MAIN STREET MC6404
		STREET 2:		ATTN: DARLENE PERSONS
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201
		BUSINESS PHONE:		214-462-6831

	MAIL ADDRESS:	
		STREET 1:		1717 MAIN STREET MC6404
		STREET 2:		ATTN: DARLENE PERSONS
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DETROITBANK CORP
		DATE OF NAME CHANGE:	19850311
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>cma-20220217.htm
<DESCRIPTION>8-K
<TEXT>
<XBRL>
<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2022 Workiva--><!--r:d3e79c6a-d10b-47ec-b89f-f3e8e90ba489,g:c34a63d2-2908-4e3d-8ee3-652fca91945e,d:f215b5de7fad4764a62c59bfce67708d--><html xmlns:cma="http://www.comerica.com/20220217" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:dei="http://xbrl.sec.gov/dei/2021" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2020-02-12" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.w3.org/1999/xhtml" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>cma-20220217</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF80L2ZyYWc6NGM4NTc3NDYxYmYwNGE3Zjk0MTQzZjM2OGNiNzVhZDQvdGFibGU6MmFlZGJiM2UyZmMwNGMyMGJkNzIyNWE3NTcyNjlmOWIvdGFibGVyYW5nZToyYWVkYmIzZTJmYzA0YzIwYmQ3MjI1YTc1NzI2OWY5Yl80LTEtMS0xLTI3OTU1Mw_3247d92b-4ca7-4998-98d4-1b09724aa8b6">0000028412</ix:nonNumeric><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:AmendmentFlag" format="ixt:fixed-false" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF80L2ZyYWc6NGM4NTc3NDYxYmYwNGE3Zjk0MTQzZjM2OGNiNzVhZDQvdGFibGU6MmFlZGJiM2UyZmMwNGMyMGJkNzIyNWE3NTcyNjlmOWIvdGFibGVyYW5nZToyYWVkYmIzZTJmYzA0YzIwYmQ3MjI1YTc1NzI2OWY5Yl8xMS0xLTEtMS0yNzk1NTM_170bde23-0e61-43c0-9683-c857423f610c">FALSE</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="cma-20220217.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0000028412</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2022-02-17</xbrli:startDate><xbrli:endDate>2022-02-17</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="if215b5de7fad4764a62c59bfce67708d_1"></div><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:174%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:174%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:174%">Washington, D.C.  20549</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:174%">---------------</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:14pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF85OQ_25c6a2b4-b8e9-4c29-a336-2975bd88a612">8-K</ix:nonNumeric> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">CURRENT REPORT</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Date of Report (Date of earliest event reported): </span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:DocumentPeriodEndDate" format="ixt:date-monthname-day-year-en" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8yNDE_b5b6cf7d-832a-4071-826f-259628159d06">February&#160;17, 2022</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> </span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:18pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8yNDY_de5e2f77-9d8c-45bb-80bb-313d60999fcb">COMERICA INCORPORATED</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:400;line-height:120%">(Exact name of registrant as specified in its charter)</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:91.520%"><tr><td style="width:1.0%"></td><td style="width:34.523%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:30.050%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.127%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6YjgwZDIzZDk2NmVjNDA0Mzg4NDc2MDg4ODc5Zjc4MjAvdGFibGVyYW5nZTpiODBkMjNkOTY2ZWM0MDQzODg0NzYwODg4NzlmNzgyMF8wLTAtMS0xLTI3OTU1Mw_1894de4b-3c22-4ebe-991d-6ada2ce776ca">Delaware</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6YjgwZDIzZDk2NmVjNDA0Mzg4NDc2MDg4ODc5Zjc4MjAvdGFibGVyYW5nZTpiODBkMjNkOTY2ZWM0MDQzODg0NzYwODg4NzlmNzgyMF8wLTEtMS0xLTI3OTU1Mw_4dbd77a0-55b8-48a2-9a9b-856f38970d8c">1-10706</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6YjgwZDIzZDk2NmVjNDA0Mzg4NDc2MDg4ODc5Zjc4MjAvdGFibGVyYW5nZTpiODBkMjNkOTY2ZWM0MDQzODg0NzYwODg4NzlmNzgyMF8wLTItMS0xLTI3OTU1Mw_481b6a17-7509-46f9-acd6-e99c1a1cc637">38-1998421</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:100%">------------</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:100%">------------</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:100%">------------</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(State or other Jurisdiction of Incorporation)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(Commission File Number)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Narrow',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(IRS Employer Identification Number)</span></td></tr></table></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Comerica Bank Tower</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zMjg_746c9467-c13f-4e4f-ab40-02c111ce4934">1717 Main Street, MC 6404</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zMzI_0e5d8676-6503-4d7c-9d12-9bb994517bab">Dallas</ix:nonNumeric>, <ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityAddressStateOrProvince" format="ixt-sec:stateprovnameen" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zMzY_a7a1d71e-ffe9-4cf1-b254-a24c65f338f7">Texas</ix:nonNumeric>  <ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zNDA_92c5ae97-0600-4360-b325-55932ef0eb51">75201</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">--------------------------------------------------------------------</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Address of principal executive offices)   (zip code)</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF80Njg_f4246bff-4746-42ec-9cfe-0b9edf197eff">(214)</ix:nonNumeric> <ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF80NzE_444d9063-32f5-4c69-80a3-6c1de112bf59">462-6831</ix:nonNumeric> </span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">------------------------------------------------------------------------</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">(Registrant's telephone number, including area code)</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:0.1%"></td><td style="width:1.706%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:96.994%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:WrittenCommunications" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl8wLTAtMS0xLTI3OTU1Mw_ee17482e-cb8e-45cf-b975-666ccd88ee0c">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></td></tr><tr style="height:11pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:SolicitingMaterial" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl8yLTAtMS0xLTI3OTU1Mw_e839d7bb-0847-4270-8e59-e835a2aefcab">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></td></tr><tr style="height:11pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:PreCommencementTenderOffer" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl80LTAtMS0xLTI3OTU1Mw_9d5bc93a-e856-4b63-8a7d-df2f56e474d6">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</span></td></tr><tr style="height:11pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:PreCommencementIssuerTenderOffer" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl82LTAtMS0xLTI3OTU1Mw_69a925d8-52c6-4559-8a33-408444ee554c">&#9744;</ix:nonNumeric></span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</span></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Securities registered pursuant to Section&#160;12(b) of the Act:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:94.444%"><tr><td style="width:1.0%"></td><td style="width:29.859%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.502%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.488%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.502%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:43.949%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Title of each class</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Trading Symbol(s)</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Name of each exchange on which registered</span></td></tr><tr><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:Security12bTitle" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OGI2NTU1ZjkyZjMyNDJkZDhhMTgyYzZkMjA5ODBhNGIvdGFibGVyYW5nZTo4YjY1NTVmOTJmMzI0MmRkOGExODJjNmQyMDk4MGE0Yl8xLTAtMS0xLTI3OTU1Mw_2dcf67ca-af01-4fa8-9b06-c9fd5491d291">Common Stock, $5 par value</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:TradingSymbol" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OGI2NTU1ZjkyZjMyNDJkZDhhMTgyYzZkMjA5ODBhNGIvdGFibGVyYW5nZTo4YjY1NTVmOTJmMzI0MmRkOGExODJjNmQyMDk4MGE0Yl8xLTItMS0xLTI3OTU1Mw_61d91bb7-7263-4844-94b5-8aeeaf33a20c">CMA</ix:nonNumeric></span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:SecurityExchangeName" format="ixt-sec:exchnameen" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OGI2NTU1ZjkyZjMyNDJkZDhhMTgyYzZkMjA5ODBhNGIvdGFibGVyYW5nZTo4YjY1NTVmOTJmMzI0MmRkOGExODJjNmQyMDk4MGE0Yl8xLTQtMS0xLTI3OTU1Mw_a87c57f2-23f1-4b84-a07d-d2507fbb2a30">New York Stock Exchange</ix:nonNumeric></span></td></tr></table></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).</span></div><div style="margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:39.619%"><tr><td style="width:1.0%"></td><td style="width:68.272%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:29.528%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Emerging growth company</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Arial Unicode MS',sans-serif;font-size:9pt;font-weight:400;line-height:100%"><ix:nonNumeric contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217" name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox" id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6M2U4OWJjMjhiNjMwNDUzMzg3OTZhMTJmODUwZmMzNTUvdGFibGVyYW5nZTozZTg5YmMyOGI2MzA0NTMzODc5NmExMmY4NTBmYzM1NV8wLTEtMS0xLTI3OTU1Mw_0886119e-0e29-461d-b331-76895c463acd">&#9744;</ix:nonNumeric></span></td></tr></table></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  &#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#9744; </span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:11.784%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.853%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:82.063%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">ITEM 5.02</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:justify;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS.</span></td></tr></table></div><div style="margin-bottom:7pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On February 17, 2022, T. Kevin DeNicola notified the Board of Directors of Comerica Incorporated (the "Board") that he does not intend to stand for re-election at the 2022 Annual Meeting of Shareholders. He plans to serve out his current term as a director until April 26, 2022. Mr. DeNicola has served as a member of the Board since 2006, and his decision was not due to any disagreement with Comerica on any matter. </span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:11.784%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:2.853%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:82.063%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">ITEM 9.01</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">FINANCIAL STATEMENTS AND EXHIBITS.</span></td></tr></table></div><div style="text-align:justify"><span><br/></span></div><div style="margin-bottom:7pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;(d) Exhibits</span></div><div style="margin-bottom:7pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">104 &#160;&#160;&#160;&#160;The cover page from Comerica's Current Report on Form 8-K, formatted in Inline XBRL</span></div><div style="padding-left:108pt;text-align:justify;text-indent:-108pt"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SIGNATURES</span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></div><div style="text-align:justify"><span><br/></span></div><div style="padding-left:252pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%">COMERICA INCORPORATED</span></div><div style="padding-left:252pt;text-align:justify"><span><br/></span></div><div style="padding-left:252pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">By:&#160;&#160;&#160;&#160;</span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">/s/ John D. Buchanan         </span></div><div style="padding-left:252pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Name:&#160;&#160;&#160;&#160;John D. Buchanan</span></div><div style="padding-left:252pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Title:&#160;&#160;&#160;&#160;Executive Vice President - Chief Legal Officer</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Date: </span><span style="background-color:#ffffff;color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">February 23, 2022</span></div><div style="text-align:center"><span><br/></span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>cma-20220217.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:d3e79c6a-d10b-47ec-b89f-f3e8e90ba489,g:c34a63d2-2908-4e3d-8ee3-652fca91945e-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:cma="http://www.comerica.com/20220217" xmlns:xbrli="http://www.xbrl.org/2003/instance" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.comerica.com/20220217">
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2021" schemaLocation="https://xbrl.sec.gov/dei/2021/dei-2021.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cma-20220217_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cma-20220217_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="CoverDocument" roleURI="http://www.comerica.com/role/CoverDocument">
        <link:definition>0001001 - Document - Cover Document</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementofFinancialPosition" roleURI="http://www.comerica.com/role/StatementofFinancialPosition">
        <link:definition>1001002 - Statement - Statement of Financial Position</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementofIncome" roleURI="http://www.comerica.com/role/StatementofIncome">
        <link:definition>1002003 - Statement - Statement of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementofCashFlows" roleURI="http://www.comerica.com/role/StatementofCashFlows">
        <link:definition>1003004 - Statement - Statement of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="cma_CoverPageAbstract" abstract="true" name="CoverPageAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
</xs:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>3
<FILENAME>cma-20220217_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:d3e79c6a-d10b-47ec-b89f-f3e8e90ba489,g:c34a63d2-2908-4e3d-8ee3-652fca91945e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_dei_PreCommencementTenderOffer_b081bd4b-c6a8-449d-879d-cb79333dc0f1_terseLabel_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementTenderOffer" xlink:to="lab_dei_PreCommencementTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_96145467-228d-4770-9e84-08eaf3a1ba97_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_05c9a5de-1353-4c6c-81cb-d476db022fe0_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_d0c45313-c5b4-4118-8bd0-697cf305fbaf_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_d17cc59d-df3d-4a78-9c35-3aeb0a2fa263_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:label id="lab_dei_EntityFileNumber_label_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber" xlink:to="lab_dei_EntityFileNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_fe426c59-1df4-46f7-8d8b-c9acddfcea55_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_WrittenCommunications_576df491-5bc4-43ea-9ffa-2cade12f64ed_terseLabel_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Written Communications</link:label>
    <link:label id="lab_dei_WrittenCommunications_label_en-US" xlink:label="lab_dei_WrittenCommunications" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Written Communications</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_WrittenCommunications"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_WrittenCommunications" xlink:to="lab_dei_WrittenCommunications" xlink:type="arc" order="1"/>
    <link:label id="lab_cma_CoverPageAbstract_e8843c49-37cb-430e-b3b9-19dfdd635df8_terseLabel_en-US" xlink:label="lab_cma_CoverPageAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover Page [Abstract]</link:label>
    <link:label id="lab_cma_CoverPageAbstract_label_en-US" xlink:label="lab_cma_CoverPageAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover Page [Abstract]</link:label>
    <link:label id="lab_cma_CoverPageAbstract_documentation_en-US" xlink:label="lab_cma_CoverPageAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover Page [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_cma_CoverPageAbstract" xlink:href="cma-20220217.xsd#cma_CoverPageAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_cma_CoverPageAbstract" xlink:to="lab_cma_CoverPageAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_e390e79b-506e-4af3-8409-e6e3073a5fc2_terseLabel_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:label id="lab_dei_PreCommencementIssuerTenderOffer_label_en-US" xlink:label="lab_dei_PreCommencementIssuerTenderOffer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_PreCommencementIssuerTenderOffer" xlink:to="lab_dei_PreCommencementIssuerTenderOffer" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_db3d8898-c751-49bd-85be-4ab6184903b6_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_0b5f1944-d66a-4d49-b772-363d5811acfb_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_label_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_4642b8a6-a805-40ff-a8dd-15e7e530e6c2_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SolicitingMaterial_e59d8bbf-e992-4ea3-819c-6ad9144ddf3e_terseLabel_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Soliciting Material</link:label>
    <link:label id="lab_dei_SolicitingMaterial_label_en-US" xlink:label="lab_dei_SolicitingMaterial" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Soliciting Material</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SolicitingMaterial"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SolicitingMaterial" xlink:to="lab_dei_SolicitingMaterial" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_e1ecd58f-efd2-4c14-8323-0e77558280fc_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_2335dfe3-ee4f-43a2-b8ce-e31ba3a8d1ec_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_7a60d5f2-43d5-4030-a24c-370e2dced4f8_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode" xlink:to="lab_dei_EntityIncorporationStateCountryCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_a55317c1-73a6-44a7-842d-84663fc3084d_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_bfc64433-0914-462e-94e2-fd51ce460035_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName" xlink:to="lab_dei_EntityRegistrantName" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LocalPhoneNumber_56f311b0-74d9-4798-9465-5f443e1a9c07_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:label id="lab_dei_LocalPhoneNumber_label_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressCityOrTown_95e5e155-f1c8-489e-a168-d2a81613e7a2_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:label id="lab_dei_EntityAddressCityOrTown_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown" xlink:to="lab_dei_EntityAddressCityOrTown" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_5ea55f52-b42c-44f5-b4bb-682b5701c3d2_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_df63485c-35d2-4e4c-b9f2-65fd5297a4ba_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_SecurityExchangeName_7b9727fc-f215-406d-8f19-15350f60016d_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
    <link:label id="lab_dei_SecurityExchangeName_label_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>4
<FILENAME>cma-20220217_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:d3e79c6a-d10b-47ec-b89f-f3e8e90ba489,g:c34a63d2-2908-4e3d-8ee3-652fca91945e-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.comerica.com/role/CoverDocument" xlink:type="simple" xlink:href="cma-20220217.xsd#CoverDocument"/>
  <link:presentationLink xlink:role="http://www.comerica.com/role/CoverDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:href="cma-20220217.xsd#cma_CoverPageAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_c9e76ada-232f-4d75-8fa0-9c9c9bd2fc78" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityCentralIndexKey_c9e76ada-232f-4d75-8fa0-9c9c9bd2fc78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_13d1a6d2-e199-4585-9997-b54a2da4a841" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_Security12bTitle_13d1a6d2-e199-4585-9997-b54a2da4a841" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_ac27d01f-8653-4b6a-a5f0-11f424378fe5" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityIncorporationStateCountryCode_ac27d01f-8653-4b6a-a5f0-11f424378fe5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_f7c382de-91be-4fc7-8ab2-6a4f77dd472e" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_DocumentType_f7c382de-91be-4fc7-8ab2-6a4f77dd472e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_e80a7927-8466-4b08-af34-fc85e9e8ca66" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_DocumentPeriodEndDate_e80a7927-8466-4b08-af34-fc85e9e8ca66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_f1fd065f-12dd-459a-baa5-41dd635f2ecd" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityRegistrantName_f1fd065f-12dd-459a-baa5-41dd635f2ecd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_63f2ab48-3964-4a37-9001-e963c7432d7d" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityAddressAddressLine1_63f2ab48-3964-4a37-9001-e963c7432d7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_1c51c0bc-e27c-4a92-80b0-2f82db5b8e50" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityAddressCityOrTown_1c51c0bc-e27c-4a92-80b0-2f82db5b8e50" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_b3f3497c-b462-4b43-a7d0-cb9f911e96b3" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityAddressStateOrProvince_b3f3497c-b462-4b43-a7d0-cb9f911e96b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_13527e6d-69fa-4ef0-af68-5de578d2f8fc" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityAddressPostalZipCode_13527e6d-69fa-4ef0-af68-5de578d2f8fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_7ecb8832-49c7-460b-8d69-210466467822" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_CityAreaCode_7ecb8832-49c7-460b-8d69-210466467822" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_1f03b1e3-25be-4fec-be59-7f58ef632ba9" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_LocalPhoneNumber_1f03b1e3-25be-4fec-be59-7f58ef632ba9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_e96cc1ba-fb46-4d2e-ae82-fcb69221f999" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityFileNumber_e96cc1ba-fb46-4d2e-ae82-fcb69221f999" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_d51aa250-a682-4b06-853b-f2e48ca85a6c" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityTaxIdentificationNumber_d51aa250-a682-4b06-853b-f2e48ca85a6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_338e0bdb-dd57-4831-9212-1504e3e6b12c" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_WrittenCommunications_338e0bdb-dd57-4831-9212-1504e3e6b12c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_f4c71a3a-d399-4ccb-a05b-1c44508edfed" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_SolicitingMaterial_f4c71a3a-d399-4ccb-a05b-1c44508edfed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_544fea24-7f63-4b7a-811d-8661335a940e" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_PreCommencementTenderOffer_544fea24-7f63-4b7a-811d-8661335a940e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_19fcd702-8733-45cd-93aa-130eccc5ca0e" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_19fcd702-8733-45cd-93aa-130eccc5ca0e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_eeabab7d-81e8-4088-85ca-7e8a6f78b092" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_TradingSymbol_eeabab7d-81e8-4088-85ca-7e8a6f78b092" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_687742b6-ed4a-4689-86c9-59bdb4ff5f23" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_SecurityExchangeName_687742b6-ed4a-4689-86c9-59bdb4ff5f23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_6f71c0a9-5ce5-4bbd-b711-d28c8cb9afb0" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_AmendmentFlag_6f71c0a9-5ce5-4bbd-b711-d28c8cb9afb0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_48d9a57b-1f80-4a3d-b93c-0d0b1636466f" xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cma_CoverPageAbstract_070c40dc-e810-4df6-bbfb-85154e033c54" xlink:to="loc_dei_EntityEmergingGrowthCompany_48d9a57b-1f80-4a3d-b93c-0d0b1636466f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.comerica.com/role/StatementofFinancialPosition" xlink:type="simple" xlink:href="cma-20220217.xsd#StatementofFinancialPosition"/>
  <link:presentationLink xlink:role="http://www.comerica.com/role/StatementofFinancialPosition" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.comerica.com/role/StatementofIncome" xlink:type="simple" xlink:href="cma-20220217.xsd#StatementofIncome"/>
  <link:presentationLink xlink:role="http://www.comerica.com/role/StatementofIncome" xlink:type="extended"/>
  <link:roleRef roleURI="http://www.comerica.com/role/StatementofCashFlows" xlink:type="simple" xlink:href="cma-20220217.xsd#StatementofCashFlows"/>
  <link:presentationLink xlink:role="http://www.comerica.com/role/StatementofCashFlows" xlink:type="extended"/>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>5
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.22.0.1</span><table class="report" border="0" cellspacing="2" id="idm140521802856664">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover Document<br></strong></div></th>
<th class="th"><div>Feb. 17, 2022</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_cma_CoverPageAbstract', window );"><strong>Cover Page [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0000028412<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common Stock, $5 par value<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">DE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Feb. 17,  2022<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">COMERICA INCORPORATED<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">1717 Main Street, MC 6404<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Dallas<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">TX<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">75201<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">(214)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">462-6831<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">1-10706<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">38-1998421<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">CMA<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_cma_CoverPageAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cover Page [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">cma_CoverPageAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>cma_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>6
<FILENAME>cma-20220217_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2021"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cma-20220217.xsd" xlink:type="simple"/>
    <context id="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000028412</identifier>
        </entity>
        <period>
            <startDate>2022-02-17</startDate>
            <endDate>2022-02-17</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF80L2ZyYWc6NGM4NTc3NDYxYmYwNGE3Zjk0MTQzZjM2OGNiNzVhZDQvdGFibGU6MmFlZGJiM2UyZmMwNGMyMGJkNzIyNWE3NTcyNjlmOWIvdGFibGVyYW5nZToyYWVkYmIzZTJmYzA0YzIwYmQ3MjI1YTc1NzI2OWY5Yl80LTEtMS0xLTI3OTU1Mw_3247d92b-4ca7-4998-98d4-1b09724aa8b6">0000028412</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF80L2ZyYWc6NGM4NTc3NDYxYmYwNGE3Zjk0MTQzZjM2OGNiNzVhZDQvdGFibGU6MmFlZGJiM2UyZmMwNGMyMGJkNzIyNWE3NTcyNjlmOWIvdGFibGVyYW5nZToyYWVkYmIzZTJmYzA0YzIwYmQ3MjI1YTc1NzI2OWY5Yl8xMS0xLTEtMS0yNzk1NTM_170bde23-0e61-43c0-9683-c857423f610c">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF85OQ_25c6a2b4-b8e9-4c29-a336-2975bd88a612">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8yNDE_b5b6cf7d-832a-4071-826f-259628159d06">2022-02-17</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8yNDY_de5e2f77-9d8c-45bb-80bb-313d60999fcb">COMERICA INCORPORATED</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6YjgwZDIzZDk2NmVjNDA0Mzg4NDc2MDg4ODc5Zjc4MjAvdGFibGVyYW5nZTpiODBkMjNkOTY2ZWM0MDQzODg0NzYwODg4NzlmNzgyMF8wLTAtMS0xLTI3OTU1Mw_1894de4b-3c22-4ebe-991d-6ada2ce776ca">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6YjgwZDIzZDk2NmVjNDA0Mzg4NDc2MDg4ODc5Zjc4MjAvdGFibGVyYW5nZTpiODBkMjNkOTY2ZWM0MDQzODg0NzYwODg4NzlmNzgyMF8wLTEtMS0xLTI3OTU1Mw_4dbd77a0-55b8-48a2-9a9b-856f38970d8c">1-10706</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6YjgwZDIzZDk2NmVjNDA0Mzg4NDc2MDg4ODc5Zjc4MjAvdGFibGVyYW5nZTpiODBkMjNkOTY2ZWM0MDQzODg0NzYwODg4NzlmNzgyMF8wLTItMS0xLTI3OTU1Mw_481b6a17-7509-46f9-acd6-e99c1a1cc637">38-1998421</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zMjg_746c9467-c13f-4e4f-ab40-02c111ce4934">1717 Main Street, MC 6404</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zMzI_0e5d8676-6503-4d7c-9d12-9bb994517bab">Dallas</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zMzY_a7a1d71e-ffe9-4cf1-b254-a24c65f338f7">TX</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF8zNDA_92c5ae97-0600-4360-b325-55932ef0eb51">75201</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF80Njg_f4246bff-4746-42ec-9cfe-0b9edf197eff">(214)</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGV4dHJlZ2lvbjpmNTUzN2U4ZjdjN2E0Y2M0ODVkN2JlY2VlNTA5MWRhNF80NzE_444d9063-32f5-4c69-80a3-6c1de112bf59">462-6831</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl8wLTAtMS0xLTI3OTU1Mw_ee17482e-cb8e-45cf-b975-666ccd88ee0c">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl8yLTAtMS0xLTI3OTU1Mw_e839d7bb-0847-4270-8e59-e835a2aefcab">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl80LTAtMS0xLTI3OTU1Mw_9d5bc93a-e856-4b63-8a7d-df2f56e474d6">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OTliYzMwMTdiNWRmNGMzMmI4ZGEwMGMxOWUzNDgzZGIvdGFibGVyYW5nZTo5OWJjMzAxN2I1ZGY0YzMyYjhkYTAwYzE5ZTM0ODNkYl82LTAtMS0xLTI3OTU1Mw_69a925d8-52c6-4559-8a33-408444ee554c">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OGI2NTU1ZjkyZjMyNDJkZDhhMTgyYzZkMjA5ODBhNGIvdGFibGVyYW5nZTo4YjY1NTVmOTJmMzI0MmRkOGExODJjNmQyMDk4MGE0Yl8xLTAtMS0xLTI3OTU1Mw_2dcf67ca-af01-4fa8-9b06-c9fd5491d291">Common Stock, $5 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OGI2NTU1ZjkyZjMyNDJkZDhhMTgyYzZkMjA5ODBhNGIvdGFibGVyYW5nZTo4YjY1NTVmOTJmMzI0MmRkOGExODJjNmQyMDk4MGE0Yl8xLTItMS0xLTI3OTU1Mw_61d91bb7-7263-4844-94b5-8aeeaf33a20c">CMA</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6OGI2NTU1ZjkyZjMyNDJkZDhhMTgyYzZkMjA5ODBhNGIvdGFibGVyYW5nZTo4YjY1NTVmOTJmMzI0MmRkOGExODJjNmQyMDk4MGE0Yl8xLTQtMS0xLTI3OTU1Mw_a87c57f2-23f1-4b84-a07d-d2507fbb2a30">NYSE</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217"
      id="id3VybDovL2RvY3MudjEvZG9jOmYyMTViNWRlN2ZhZDQ3NjRhNjJjNTliZmNlNjc3MDhkL3NlYzpmMjE1YjVkZTdmYWQ0NzY0YTYyYzU5YmZjZTY3NzA4ZF8xL2ZyYWc6ZjU1MzdlOGY3YzdhNGNjNDg1ZDdiZWNlZTUwOTFkYTQvdGFibGU6M2U4OWJjMjhiNjMwNDUzMzg3OTZhMTJmODUwZmMzNTUvdGFibGVyYW5nZTozZTg5YmMyOGI2MzA0NTMzODc5NmExMmY4NTBmYzM1NV8wLTEtMS0xLTI3OTU1Mw_0886119e-0e29-461d-b331-76895c463acd">false</dei:EntityEmergingGrowthCompany>
</xbrl>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>7
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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M@36;W09UU[ Z*S>%2VUABUD>;F!3+XR[ :ZOM+:'AMMG5G\3#/\%4$L#!!0
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M4$L! A0#%     @ 9()75'F_'BKN    *P(  !$              ( !KP
M &1O8U!R;W!S+V-O<F4N>&UL4$L! A0#%     @ 9()75)E<G",0!@  G"<
M !,              ( !S $  'AL+W1H96UE+W1H96UE,2YX;6Q02P$"% ,4
M    " !D@E=4TPT?.C($   R$   &               @($-"   >&PO=V]R
M:W-H965T<R]S:&5E=#$N>&UL4$L! A0#%     @ 9()75)^@&_"Q @  X@P
M  T              ( !=0P  'AL+W-T>6QE<RYX;6Q02P$"% ,4    " !D
M@E=4EXJ[',     3 @  "P              @ %1#P  7W)E;',O+G)E;'-0
M2P$"% ,4    " !D@E=4-]1K_C8!   K @  #P              @ $Z$
M>&PO=V]R:V)O;VLN>&UL4$L! A0#%     @ 9()75"0>FZ*M    ^ $  !H
M             ( !G1$  'AL+U]R96QS+W=O<FMB;V]K+GAM;"YR96QS4$L!
M A0#%     @ 9()75&60>9(9 0  SP,  !,              ( !@A(  %M#
G;VYT96YT7U1Y<&5S72YX;6Q02P4&      D "0 ^ @  S!,

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
// Edgar(tm) Renderer was created by staff of the U.S. Securities and Exchange Commission.  Data and content created by government employees within the scope of their employment are not subject to domestic copyright protection. 17 U.S.C. 105.
var Show={};Show.LastAR=null,Show.showAR=function(a,r,w){if(Show.LastAR)Show.hideAR();var e=a;while(e&&e.nodeName!='TABLE')e=e.nextSibling;if(!e||e.nodeName!='TABLE'){var ref=((window)?w.document:document).getElementById(r);if(ref){e=ref.cloneNode(!0);
e.removeAttribute('id');a.parentNode.appendChild(e)}}
if(e)e.style.display='block';Show.LastAR=e};Show.hideAR=function(){Show.LastAR.style.display='none'};Show.toggleNext=function(a){var e=a;while(e.nodeName!='DIV')e=e.nextSibling;if(!e.style){}else if(!e.style.display){}else{var d,p_;if(e.style.display=='none'){d='block';p='-'}else{d='none';p='+'}
e.style.display=d;if(a.textContent){a.textContent=p+a.textContent.substring(1)}else{a.innerText=p+a.innerText.substring(1)}}}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>9
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.22.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>1</ContextCount>
  <ElementCount>118</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>0</UnitCount>
  <MyReports>
    <Report instance="cma-20220217.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001001 - Document - Cover Document</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.comerica.com/role/CoverDocument</Role>
      <ShortName>Cover Document</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="8-K" original="cma-20220217.htm">cma-20220217.htm</File>
    <File>cma-20220217.xsd</File>
    <File>cma-20220217_lab.xml</File>
    <File>cma-20220217_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="22">http://xbrl.sec.gov/dei/2021</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>12
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
{
 "instance": {
  "cma-20220217.htm": {
   "axisCustom": 0,
   "axisStandard": 0,
   "contextCount": 1,
   "dts": {
    "inline": {
     "local": [
      "cma-20220217.htm"
     ]
    },
    "labelLink": {
     "local": [
      "cma-20220217_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "cma-20220217_pre.xml"
     ]
    },
    "schema": {
     "local": [
      "cma-20220217.xsd"
     ],
     "remote": [
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "https://xbrl.sec.gov/dei/2021/dei-2021.xsd"
     ]
    }
   },
   "elementCount": 23,
   "entityCount": 1,
   "hidden": {
    "http://xbrl.sec.gov/dei/2021": 2,
    "total": 2
   },
   "keyCustom": 0,
   "keyStandard": 118,
   "memberCustom": 0,
   "memberStandard": 0,
   "nsprefix": "cma",
   "nsuri": "http://www.comerica.com/20220217",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cma-20220217.htm",
      "contextRef": "i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:Security12bTitle",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001001 - Document - Cover Document",
     "role": "http://www.comerica.com/role/CoverDocument",
     "shortName": "Cover Document",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cma-20220217.htm",
      "contextRef": "i664085032fc3415f9ac953bdf57c2d40_D20220217-20220217",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:Security12bTitle",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 0,
   "tag": {
    "cma_CoverPageAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover Page [Abstract]",
        "label": "Cover Page [Abstract]",
        "terseLabel": "Cover Page [Abstract]"
       }
      }
     },
     "localname": "CoverPageAbstract",
     "nsuri": "http://www.comerica.com/20220217",
     "xbrltype": "stringItemType"
    },
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r5"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_PreCommencementIssuerTenderOffer": {
     "auth_ref": [
      "r2"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.",
        "label": "Pre-commencement Issuer Tender Offer",
        "terseLabel": "Pre-commencement Issuer Tender Offer"
       }
      }
     },
     "localname": "PreCommencementIssuerTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_PreCommencementTenderOffer": {
     "auth_ref": [
      "r3"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.",
        "label": "Pre-commencement Tender Offer",
        "terseLabel": "Pre-commencement Tender Offer"
       }
      }
     },
     "localname": "PreCommencementTenderOffer",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r0"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r1"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_SolicitingMaterial": {
     "auth_ref": [
      "r4"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.",
        "label": "Soliciting Material",
        "terseLabel": "Soliciting Material"
       }
      }
     },
     "localname": "SolicitingMaterial",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "dei_WrittenCommunications": {
     "auth_ref": [
      "r6"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.",
        "label": "Written Communications",
        "terseLabel": "Written Communications"
       }
      }
     },
     "localname": "WrittenCommunications",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.comerica.com/role/CoverDocument"
     ],
     "xbrltype": "booleanItemType"
    }
   },
   "unitCount": 0
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r1": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r2": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13e",
   "Subsection": "4c"
  },
  "r3": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14d",
   "Subsection": "2b"
  },
  "r4": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "14a",
   "Subsection": "12"
  },
  "r5": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r6": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "425"
  }
 },
 "version": "2.1"
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>13
<FILENAME>0000028412-22-000072-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0000028412-22-000072-xbrl.zip
M4$L#!!0    ( &2"5U3H<_[FXQ,  !A[   0    8VUA+3(P,C(P,C$W+FAT
M;>U=6W?:NK9^W[]"AW7.7NT8$=CRG;;9@P:215=L6D*:!2\=LB6#P<9LVX3+
MKS]3-N0*+6F3-&G#0X+1;6IJZIL77?SV/_,H1.<\28-X_*XDEZ42^L_^V__!
M^)_W[6-4C[UIQ,<9.D@XS3A#LR ;H#/&TQ'RDSA"9W$R"LXIQGF9@WBR2(+^
M($-$(N1&8E)E"C<L3Z>8R9*+58-[V#4M'_L*-[DEN50UK;U^U5-4JBN,8&))
M)E:YPK#)N8)UC?@>M61+U?@>J_I$UER-<<.G3#5T*$,\S7)]C^N&(9E,-#O(
MH'?0PW%:]2+ZKC3(LDFU4IG-9F4OCG@2>%1\J0AR)2(;I57F8)[AE'O7"L!S
MN1^?5X)Q&(RY8$\E2^@X]>,DHAFP#VJ1-0PD*_*Z'L:#BSKF;A)>5 ()HM&+
MC'.H<W2MN9E2CI-^1;8LJY*G7J'M6L:\7I'U:X01"4L$R^2RDLUU0!>4*Q5=
MD)<&FX@CDB17_K&/3[P!CR@.QFE&QQY?E=K>'3$L%U5#T\$V8B1!S+5*J[<8
M=3V[2'9I6F2OAG3<?U?B8WQZ4@)IX)3MOXUX1I$HC_E_I\'YN])!/,Y QG%G
M,8%B7O'TKI3Q>5;)*:WL_^M?_WJ;!5G(]T&,\%I:WE:*W]Y6BIK=F"WVW[+@
M'*79(N3O2BQ()R%=5,?QF$/[P;PJ,O*D^!HPQL?Y5TAWIKDX%LW/LS;WWY4"
M75<E4Y,4D'M%E37?HIZE*2[S-<,C3)6^U->DX$L)'M-(-,V#:F,,]"T.H#<)
M#9MCQN=_\T4)!0RJ9LKGA5N/SX])^[RKV%,V;)SWCJQA*^HN[,[GP#EKAP[I
M#7KU3XHS; ^<X8>ATPF#7N2$SM!3[/I@=*PX87<YB>QA0^X./X]Z'19USSY)
MSK(K=3O=17=YJG6CWK#7Z2K.LJ;V#DWIF/06W3-/=XYLU>EXBE/OSKM1=^8<
M-93><"39G4_+WM FK2,G<):?1?OG[.@P<(].=3LZ#'M''P*;G"YZD0UE[(5]
M]&'D+)L+YZRA0'T+9QA&K;/FJLQG:$L;]SHQ_/\\ZD;-9:_S(>HN:U)WV9QU
MHT^*/6S*W8XG0QVD==;5NB'0V&ED]HDT/^XTE5;G5+9G7Q2B&LPB@%H>-;!J
M62:V3*9BV94L@ZB4FJY>VI?$AYBJ3-Y6K@WK0XYR#0":"9 ^#&F_A(I9#]7.
MLZH?S#G#/@W%?'@9]J\/^[P8\GSH%\YR)#L=^XML2"[C1,$2UV6L*IZ$+=U4
ML&=JADH47Y<EK[1_6#L^:=P:\LKU29YPGR<<D"S= $T"MJII#J,@%"@'_&H&
M@/2NE ;1)!1XEO\V2(3,7$6A\CQE4$/E>A5%\Y=MKDA(XVF2/^6P6UW)82$;
MWR.'ZXIX#C7KIX")9S_@"<H)XAL5Z4'S[^M3YF;A_?5/UVN? 'MCMGX"[9!D
M=3!.]@51N98SUN4NTR[(9%NRKE/6S^M&*M<8M>;J!1LK5S"] LA?P'_.SF_9
M)U_DTM4R*Y41!6,\X,*&JJJD;&B3[,TL8-F@*DO2_Y7RK/MOTPD%F7*3"E10
M?"_JN56;,&(PT)U0+ZNFTRBBR>*-Z BF8= ?5SW@+$]*18WK0EX<QDGUCWQD
MI#<^]!P@) K"1?7/6A+0\,^]%*P+J#H)_"(Y#9:\*LM :_XX*^@WH+0P)-;]
MD0T5>G#J-#N-.CKIU#J-D^OD7R'\Y])XTC@X;3<[S<8)JCEUU/CGX*\:(!4Z
M:-EV\^2DV7*>*.%G-!T$XWX6C_=0O7Q01F"(:ZKU$-1V@@B0S.$SU(XC.MY&
M-]F);GS]\^C<5;]%)1&3[[#5MM$#:O*UMU48HC]37\_7^KHW!/-GR<+645?I
M+MG .7*&3KTO]^HLZ)TY8:]S.FMU#D?=CM#7GU7VUX>P1\)S=SB)G,[ITB&G
M:F_(A@YI2%UB2ZWZYY%#/H1=\CET.C7-/@.:#TVM]>D+T< U)*X*/B&WP,XB
M%J:*HH,7:&@N,TVJ@_NR;^*_;RI:=&=QV82=3V$.YU(&T--N.!W4;GQLM3M/
ME,B/TR2=TG&&LAB=<$]XF4A64)P@67O%7J/81]F BZ1I$F0!($5C[@W Y.&H
MYF4B6;84];D.G+J1)\)^$#UK\TF<9.C5^IE3L"!XFB%^+D(I29[,V>OJA> ^
MWK@] GI]S"VG1F%/7?='&/R"(VAS((IA1A=X =S!?/Q[P=W"J3>^N)JK>[[!
ML*D0BE7)D+%)=!\3S=*)*6L6D\"E/.1N,@6K[=]_R+KT1C;V\M#:;5_CX01I
ML[ _&] U?_:\**(P;=X/4A&6RQQ(^>W$O?N%<8T3WS"PQ4P/JYKK8E."/XJL
M,%VR+,OW7%!^+;O1;A[44-,Y:+5! 8*74/]QA?\X<^)58PY^5C[T O>3BR%'
M-$7IA'O"JV4H&*,@2Q&H0U #R>NMG0%GK0_>8!9/JL(-W-2WC+HA7^=WXP3\
M4 Q]#.DDY=7UES?K,&01U\5YH3>KVMTXR^(H;^"<)UG@T7#52-Y>D;QR02VY
MK!6S)0-W-V/KAE<.:CE/JF3L=IJB0DEE:[)4EK>F?;5:J2QIVY._NUI2EHFQ
M4[65G!,%-X#?8B3?E932NL"$,@;^6)5,YDC>-(8WF5[P^[%,.>E1H*\Y]N($
M;)Y\+>(D QO@()Z.LV1Q$+/K!H((5XB@3<8G27PNZGFFED$1N.P.^[->O;GL
MU4?$B3Y#_IID+_NJ4_>(7>^KK;JG]8:>:@]K-P*7DZ!5?S^RA\ZHU>F2WIDM
MV?5/RU:]+VB=P7_568:1L^PO[$-S=MRIW8Q7RZ:E,JX"O'J$8)6['%N6S+!.
M&24>-PS=HV"Q\I#.:,*WF1-K\7^1[,V2?1B$'&IW 8M?I/3;4GIK545E+C,,
M*F%-<TVLFI1@BUI@&&BZKYB6(8&I4-J7L2P9DOXBI-\GI!TZ;ZY"ZEX.P2\2
MN[/$-F])K"F[.@5^&YID857W+4P]IF-N69Y,9<_3%:.TKYA8MBQ3)?)7A?87
M,!XV1FV?]X3\G;KT)"00.31)XMFV+DK?\KWR+K[*#4L1@(RS 4_0AVD2I"PH
M(I/@C%TS0E\_F7&]G[X?Q%$4I&(+%Q(F"2H0_E?K9;-]@AK1)(P7,+[75=K&
M'N?"7<F]W:<?IMIQ;6"U:0V]I^,1ZL0SGCQ12A_<K*DQEO T7?T[!@+D9VG2
M?'=4;6D/^U\,5?<L53>P)RL^^'FJCZFKBLU^GBS+'E<M104+VI -9--@C$ZR
MA/-L#]D'" 9!?7J1M9\K30?PM97 O'J>88<?D*5E\XO$-6;JAHYUX"96F>%A
MB\G@DKFN9:F:;+C4%:M<84C3FX*S]Y#KXM>&*-?SK>1C$I\'^;;07S%^]",#
MV?U"#2HS0^;8]_.5=%_&+M%43(GJZ9JO**8/3DJ'SV^/(WJT<?P8PT"%O6!2
M1 %_JT$"A_6+13R-<LO DBY)6%5T";L*T;"F60KAOL1=32[M&QJ1;CF1#X+2
MW[F?9_-*"+Z'SZ.KHF^:H<4BSTI^A5,Q20""@@D8N'S.O6D6G(N%'S!*>?H:
M(?1J&4Q@ C&^?8WG65JA#P@10@'7$DY_/U"0'##G?)6HNNN#)0>&'58)!Q7L
M^1Q+KL69+UL&]WT002*KKV^#PL.-RG$,#N#'03Q^SM'N'QB99>.+JJK,DG0%
M P\UT*FZA4V)*ECW9,9EF;B^9I7V59U@W51^4\1^RJA]N?_BSQ1E/.03(<YH
MG,OS'@(<#Z<B$H(HH,\6T+XK- ^G:1;XBT?MZ,& >Z-\[QV=@!$,&DJ$Q=QX
MCEP>QC,4%!OS#L%H1B;^&_E!*'H=I,""C(\99V)+7QI$TS"C8QY/TW"!4IH%
MJ;_(2ZX*Q"YTD:ZC:R+ARG:'*=23(#I>K-/\.(3&13EAF <B4I56G]'&!ZML
M2,:VC0]?WV9@2/J];U"P]#)X9 ^\02'D_BW6?%_T[W0<B F%[),MLFWM% !\
M0 5WE@092+^(HT['JYAB>MNU=.,X=,'_C3.84,]2"18+:"UHO[NT9W:'"?HB
MY\A>VE%3[1TU9O:1/6^=@7*L]Y>]HULGJK36V8>AO:S-'=*4>T= W])>=(<#
MJ+\VZRX;6J\C%*DSZH8;-R9P+ANJ23CV7)-C5?-\[%J&AG5=]SQFFIR+ U7_
M_L,R5/7-_2[YWIM _U@<>R5K0/Q584.3*SNJVU, -Y5H*R"]L9-:;*!^)1OH
MX+"-B"*5(>.&P'>6K+NS;AW84?H6VR14Y-J!P]>ROL#,+C!S$H>!!X,X[MN@
ME071+QCS@QBSV(0QIF(QPW6Q9*H&>%&&A$VN61A^URBAW/=$(/-7QIA+04/1
M2M)N XRL4BR3*QAS[8C&!<*H8$[D.5] YEF S,>$"SM&G/K-#Y,)HSYI^;YP
MVU_ YH? 1MH -A;37,]2**"+IF/5U15L4H-AYA-?T[EJJ$S_M<$&! Y[5R3N
MFY:-K#),7KFO=X.>(N\+^#Q'\&FFZ90G+Q!T?Q!$-D"0;E&+:,S$&O$ @C0P
M=4RJ*!A&4E55SC5-_<5]JKM#D +.YRMO-PA:Y=UE=]%70X2/&0>\XB\6@3F>
M<':-#ZMCNZN#A3D>KZ)UP(#G%)Q3RR#EWW,JB5AE4[.^*SKW]<B=)I%[C_G)
M5EDUS6="K*J4+74WSCZ)+:B[SK7-VVL[XA:PXJ2W-T!>2-/T#JAZ!X/D23,A
MH?GZR<DB<N/P57J7W:>_" N<U<'/7 SX6IW$8S0;!/#+)0[?90_V"C\%WD*_
M40J>/4/K'CPMKCQ^/*U0<@N9N/D<?,[FXU&3.&#.]8:C16]H+YSZAU&O/AC8
MG3ZTU1O9PYK6JK^'NFZ9CVIWV)6=SN>HU?D0V<NF9$?M4>NH,6_5H5_1IX5=
M'ZGV44,2EYQM,!\)\WS=\"BFOB1CU:<FMEQ)QY[E,TVU9$8L.=]Z',5B VGL
MC?;0_VIH0A-T3L/ICYP>W&'BO\C_=OE?86X!N2_"OX/PWSK0I<O,DEW7P ;1
MP6,"APE;JJN! \4Y]16%$K$>=6#77J3\9Z/\VD$K+M"X&4<0^O89[_A][(GP
MZ>9$H*;A:89/,%%\T *NJ6(JB3@FT23#=UU"%0E,'#Y#W3@9%7K@PF?^]C''
MNWG*3V0S37/,1 B!(W>!O'QC#?BG(S#G>'[&[,:NER!%0!@'#O2%(=Q/XEDV
M$)&(B=@)0U/$N ]-Y!> %"N\DK;AHJS+^[&4Z\N\DO9:G&\KXA?$Q63'6[:N
M!S-$P=?E'=W[1W?F%:NLR];W./.Z62;&_7NRQ"IK9#>W^WXCQ# "CPK@C<UR
M^T3"@\\@]%V<;EBS\2CGXD'!Q%\WZFV34S6/7@\'@3.T9T[]=&DO^Z!4>J"T
M/D2M^NFL!^H(E-I-A;7L=?I B[T02L]>UB2G8R_%T7TG:LSMJ*LZG?=1=VG+
MSN>-ET=(IJG+LL6QQ(DXBB\S["J*C W=M#1/U17JL=VBWCL?%/TI.LC_BE81
M&U<WJJC@UI[, 2@@'G)/O,5A'.<1X&G*\US0P=7.3_':@"#?U%G<?RSD-F\K
M7(C&\[<_"&4V!C, 4A)^'J10#M0:'7MBFE+/$W?[B,SBVGY&$Y86>S[9YO S
MDI57]"+R?%5]E1$J8M-W^9L/]O;=UC=N5I[$16^K"0^I.+UQZZ[E2\67ZS#I
ML@AUP4B?9K>+?.MZYN+O(+F$SS[';L+I"!QP,.:K-)S115JJ/."]T$\OB"]"
M\<KWZ'U9+AOF;GMA[Z3WU_3<:ZTF*4OZ;M7^1&MBQX,%NP5%FYV&C;2R1!XM
M'KQ"Z:?#@GKC8ZW=.6TW4.L0U9OMQD&GU3Y!K38Z:+0[M:8#OQ\VX?O)&]0X
MAM1FR[F6]0VJ??S8:H*"%!<#0\KM<@<M^V/#.:E!]BZJM=OBOG*1^V13]O(=
MU-_UR6QL9/6#\W6S:FR-T?IZ5+2^&74/=<KH;]!+8U3G#MB,(17JKKAY4:B8
M]S'H)*%OZD$"*BA.\I-\%Q<K7-X3 OE?B0*EO$3I-92FH$8Y8C%T0:C0XL1$
M?EY"Z+I<628<YUI6J#;(+BK(WX54&X^GH!]MSG/E"$V>#&C"!W$(P)J6T5\<
M 9".T[PVGHB#A%-H#7Q*\.T2L:0-L!P)+Y(BMJ(<"4T;HMHD@;]$+QA01G92
MONR[4/MY?:PH&W%QX&6M;PMFI.(@-126H K1#]$JXUY^3 /-:-%9-N6"-J']
M ?1I/^'%2GMN$URP3_0:<H"M"^26MROB%P7TFRF@NWI]]Z^#K+(X2?U(.NC)
ML>"PZ=2<@V;MN'CS1J$:BI=;_-5\W^S<22=LU0#?".<]85VRS:40E]DWYH/
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M&'GSF^;,S%L16^6<+W4+-3WX!5!+ P04    " !D@E=4SU*1FI$*  !X7P
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MFW<WD\I08U470^IY/VKH^W2"$D0H2PCG]X/V:J1MF#5.M]"V[ /$%_#7)89
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G+3(P,C(P,C$W7W!R92YX;6Q02P4&      0 !    0  ;BD

end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
