<SEC-DOCUMENT>0000022356-20-000002-index.html : 20200122
<SEC-HEADER>0000022356-20-000002.hdr.sgml : 20200122
<ACCEPTANCE-DATETIME>20200122143404
ACCESSION NUMBER:		0000022356-20-000002
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20200122
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20200122
DATE AS OF CHANGE:		20200122

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMMERCE BANCSHARES INC /MO/
		CENTRAL INDEX KEY:			0000022356
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				430889454
		STATE OF INCORPORATION:			MO
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36502
		FILM NUMBER:		20538640

	BUSINESS ADDRESS:	
		STREET 1:		1000 WALNUT
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64106
		BUSINESS PHONE:		8162342000

	MAIL ADDRESS:	
		STREET 1:		P O BOX 419248
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64141-6248
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>cbsh123120198k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: cbsh123120198k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>cbsh12312019ex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: cbsh12312019ex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>cbsh-20200122.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 3 - file: cbsh-20200122.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>4
<FILENAME>cbsh-20200122_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
Document 4 - file: cbsh-20200122_cal.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>5
<FILENAME>cbsh-20200122_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
Document 5 - file: cbsh-20200122_def.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>cbsh-20200122_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
Document 6 - file: cbsh-20200122_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>cbsh-20200122_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
Document 7 - file: cbsh-20200122_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>commercebancshares914a01a05.jpg
<TEXT>
Document 8 - file: commercebancshares914a01a05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>releaselogoa01a01a05.jpg
<TEXT>
Document 9 - file: releaselogoa01a01a05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>10
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 10 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>11
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 11 - file: FilingSummary.html

Document 11 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 12 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>cbsh123120198k_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 16 - file: cbsh123120198k_htm.html

Document 16 - RAW XML: cbsh123120198k_htm.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>17
<FILENAME>0000022356-20-000002-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: 0000022356-20-000002-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>18
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 18 - file: Financial_Report.xlsx

</DOCUMENT>
</SEC-DOCUMENT>