<SEC-DOCUMENT>0000039263-19-000052-index.html : 20191031
<SEC-HEADER>0000039263-19-000052.hdr.sgml : 20191031
<ACCEPTANCE-DATETIME>20191031091943
ACCESSION NUMBER:		0000039263-19-000052
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20191031
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20191031
DATE AS OF CHANGE:		20191031

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CULLEN/FROST BANKERS, INC.
		CENTRAL INDEX KEY:			0000039263
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				741751768
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13221
		FILM NUMBER:		191182289

	BUSINESS ADDRESS:	
		STREET 1:		111 W HOUSTON ST
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78205
		BUSINESS PHONE:		210-220-4011

	MAIL ADDRESS:	
		STREET 1:		POST OFFICE BOX 1600
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78296-1600

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CULLEN FROST BANKERS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FROST BANK CORP
		DATE OF NAME CHANGE:	19770823
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a3q19form8k-earningsre.htm
<DESCRIPTION>8-K - THIRD QUARTER 2019 EARNINGS RELEASE
<TEXT>
Document 1 - file: a3q19form8k-earningsre.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a3q19form8-kxexhibit99.htm
<DESCRIPTION>EXHIBIT 99.1 - 2019 THIRD QUARTER EARNINGS RELEASE
<TEXT>
Document 2 - file: a3q19form8-kxexhibit99.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>cfr-20190930.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 3 - file: cfr-20190930.xsd

</DOCUMENT>
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<TYPE>EX-101.CAL
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<FILENAME>cfr-20190930_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
Document 4 - file: cfr-20190930_cal.xml

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<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>5
<FILENAME>cfr-20190930_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
Document 5 - file: cfr-20190930_def.xml

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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>cfr-20190930_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
Document 6 - file: cfr-20190930_lab.xml

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<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>cfr-20190930_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
Document 7 - file: cfr-20190930_pre.xml

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<TYPE>XML
<SEQUENCE>8
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>10
<FILENAME>0000039263-19-000052-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
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<DOCUMENT>
<TYPE>JSON
<SEQUENCE>11
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 11 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>12
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 12 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 13 - file: FilingSummary.html

Document 13 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: R1.htm

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

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>a3q19form8k-earningsre_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 16 - file: a3q19form8k-earningsre_htm.html

Document 16 - RAW XML: a3q19form8k-earningsre_htm.xml

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