    <SEC-DOCUMENT>0001130310-23-000052-index.html : 20230315
    <SEC-HEADER>0001130310-23-000052.hdr.sgml : 20230315
    <ACCEPTANCE-DATETIME>20230315161102
    ACCESSION NUMBER:		0001130310-23-000052
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		22
    CONFORMED PERIOD OF REPORT:	20230315
    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:		20230315
    DATE AS OF CHANGE:		20230315

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CENTERPOINT ENERGY INC
    		CENTRAL INDEX KEY:			0001130310
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		IRS NUMBER:				740694415
    		STATE OF INCORPORATION:			TX
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-31447
    		FILM NUMBER:		23735262

    	BUSINESS ADDRESS:
    		STREET 1:		1111 LOUISIANA ST.
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77002
    		BUSINESS PHONE:		7132073000

    	MAIL ADDRESS:
    		STREET 1:		1111 LOUISIANA ST.
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77002

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	RELIANT ENERGY REGCO INC
    		DATE OF NAME CHANGE:	20001220

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CENTERPOINT ENERGY HOUSTON ELECTRIC LLC
    		CENTRAL INDEX KEY:			0000048732
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		IRS NUMBER:				223865106
    		STATE OF INCORPORATION:			TX
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-03187
    		FILM NUMBER:		23735264

    	BUSINESS ADDRESS:
    		STREET 1:		1111 LOUISIANA
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77002
    		BUSINESS PHONE:		7132073000

    	MAIL ADDRESS:
    		STREET 1:		611 WALKER
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77002

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	RELIANT ENERGY INC
    		DATE OF NAME CHANGE:	19990513

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	HOUSTON INDUSTRIES INC
    		DATE OF NAME CHANGE:	19970807

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	HOUSTON LIGHTING & POWER CO
    		DATE OF NAME CHANGE:	19920703

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CENTERPOINT ENERGY RESOURCES CORP
    		CENTRAL INDEX KEY:			0001042773
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
    		IRS NUMBER:				760511406
    		STATE OF INCORPORATION:			TX
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13265
    		FILM NUMBER:		23735263

    	BUSINESS ADDRESS:
    		STREET 1:		1111 LOUISIANA ST
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77002
    		BUSINESS PHONE:		713-207-3000

    	MAIL ADDRESS:
    		STREET 1:		1111 LOUISIANA ST
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77002

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	RELIANT ENERGY RESOURCES CORP
    		DATE OF NAME CHANGE:	19990317

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NORAM ENERGY CORP/
    		DATE OF NAME CHANGE:	19970808

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	HI MERGER INC
    		DATE OF NAME CHANGE:	19970721
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>cnp-20230315.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: cnp-20230315.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>exhibit101offerletter.htm
    <DESCRIPTION>EX-10.1
    <TEXT>
    Document 2 - file: exhibit101offerletter.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.2
    <SEQUENCE>3
    <FILENAME>exhibit102rsuagreement.htm
    <DESCRIPTION>EX-10.2
    <TEXT>
    Document 3 - file: exhibit102rsuagreement.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>4
    <FILENAME>exhibit991pressreleasecf.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 4 - file: exhibit991pressreleasecf.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>5
    <FILENAME>cnp-20230315.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 5 - file: cnp-20230315.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>6
    <FILENAME>cnp-20230315_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: cnp-20230315_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>7
    <FILENAME>cnp-20230315_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: cnp-20230315_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>8
    <FILENAME>cnp-20230315_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 8 - file: cnp-20230315_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>exhibit101offerletter001.jpg
    <TEXT>
    Document 9 - file: exhibit101offerletter001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>exhibit101offerletter002.jpg
    <TEXT>
    Document 10 - file: exhibit101offerletter002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>exhibit101offerletter003.jpg
    <TEXT>
    Document 11 - file: exhibit101offerletter003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>exhibit101offerletter004.jpg
    <TEXT>
    Document 12 - file: exhibit101offerletter004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>exhibit991pressreleasecf001.jpg
    <TEXT>
    Document 13 - file: exhibit991pressreleasecf001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>exhibit991pressreleasecf002.jpg
    <TEXT>
    Document 14 - file: exhibit991pressreleasecf002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>15
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>cnp-20230315_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: cnp-20230315_htm.html

    Document 16 - RAW XML: cnp-20230315_htm.xml

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    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>17
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>18
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 18 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>19
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 19 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>20
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 20 - file: FilingSummary.html

    Document 20 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>23
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 23 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>24
    <FILENAME>0001130310-23-000052-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 24 - file: 0001130310-23-000052-xbrl.zip

    </DOCUMENT>
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