    <SEC-DOCUMENT>0001104659-22-124929-index.html : 20221206
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    <ACCEPTANCE-DATETIME>20221206170326
    ACCESSION NUMBER:		0001104659-22-124929
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		15
    CONFORMED PERIOD OF REPORT:	20221206
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20221206
    DATE AS OF CHANGE:		20221206

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			AMEREN CORP
    		CENTRAL INDEX KEY:			0001002910
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		IRS NUMBER:				431723446
    		STATE OF INCORPORATION:			MO
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14756
    		FILM NUMBER:		221448362

    	BUSINESS ADDRESS:
    		STREET 1:		1901 CHOUTEAU AVE
    		STREET 2:		MC 1310
    		CITY:			ST LOUIS
    		STATE:			MO
    		ZIP:			63166-6149
    		BUSINESS PHONE:		314-621-3222

    	MAIL ADDRESS:
    		STREET 1:		1901 CHOUTEAU AVE
    		STREET 2:		MC 1310
    		CITY:			ST LOUIS
    		STATE:			MO
    		ZIP:			63103

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Ameren Illinois Co
    		CENTRAL INDEX KEY:			0000018654
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		IRS NUMBER:				370211380
    		STATE OF INCORPORATION:			IL
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-03672
    		FILM NUMBER:		221448363

    	BUSINESS ADDRESS:
    		STREET 1:		10 RICHARD MARK WAY
    		CITY:			COLLINSVILLE
    		STATE:			IL
    		ZIP:			62234
    		BUSINESS PHONE:		618-343-8150

    	MAIL ADDRESS:
    		STREET 1:		10 RICHARD MARK WAY
    		CITY:			COLLINSVILLE
    		STATE:			IL
    		ZIP:			62234

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	CENTRAL ILLINOIS PUBLIC SERVICE CO
    		DATE OF NAME CHANGE:	19920703

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			UNION ELECTRIC CO
    		CENTRAL INDEX KEY:			0000100826
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		IRS NUMBER:				430559760
    		STATE OF INCORPORATION:			MO
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-02967
    		FILM NUMBER:		221448364

    	BUSINESS ADDRESS:
    		STREET 1:		1901 CHOUTEAU AVENUE
    		STREET 2:		MC 1310
    		CITY:			ST LOUIS
    		STATE:			MO
    		ZIP:			63166
    		BUSINESS PHONE:		314-621-3222

    	MAIL ADDRESS:
    		STREET 1:		1901 CHOUTEAU AVENUE
    		STREET 2:		MC 1310
    		CITY:			ST LOUIS
    		STATE:			MO
    		ZIP:			63166
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>tm2231993d1_8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: tm2231993d1_8k.htm

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    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>tm2231993d1_ex10-1.htm
    <DESCRIPTION>EXHIBIT 10.1
    <TEXT>
    Document 2 - file: tm2231993d1_ex10-1.htm

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    <DOCUMENT>
    <TYPE>EX-10.2
    <SEQUENCE>3
    <FILENAME>tm2231993d1_ex10-2.htm
    <DESCRIPTION>EXHIBIT 10.2
    <TEXT>
    Document 3 - file: tm2231993d1_ex10-2.htm

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    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>aee-20221206.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 4 - file: aee-20221206.xsd

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    <FILENAME>aee-20221206_def.xml
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    <TEXT>
    Document 5 - file: aee-20221206_def.xml

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    <TYPE>EX-101.LAB
    <SEQUENCE>6
    <FILENAME>aee-20221206_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 6 - file: aee-20221206_lab.xml

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    <TYPE>EX-101.PRE
    <SEQUENCE>7
    <FILENAME>aee-20221206_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 7 - file: aee-20221206_pre.xml

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    <TYPE>XML
    <SEQUENCE>8
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 8 - file: R1.htm

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    <TYPE>XML
    <SEQUENCE>9
    <FILENAME>tm2231993d1_8k_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 9 - file: tm2231993d1_8k_htm.html

    Document 9 - RAW XML: tm2231993d1_8k_htm.xml

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    <TYPE>EXCEL
    <SEQUENCE>10
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 10 - file: Financial_Report.xlsx

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    <TYPE>XML
    <SEQUENCE>11
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 11 - file: Show.js

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    <TYPE>XML
    <SEQUENCE>12
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 12 - file: report.css

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    <TYPE>XML
    <SEQUENCE>13
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    <TEXT>
    Document 13 - file: FilingSummary.html

    Document 13 - RAW XML: FilingSummary.xml

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    <TYPE>JSON
    <SEQUENCE>16
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    <TEXT>
    Document 16 - file: MetaLinks.json

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    <TYPE>ZIP
    <SEQUENCE>17
    <FILENAME>0001104659-22-124929-xbrl.zip
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    <TEXT>
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