    <SEC-DOCUMENT>0000107815-19-000299-index.html : 20191106
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    <ACCEPTANCE-DATETIME>20191106073034
    ACCESSION NUMBER:		0000107815-19-000299
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		16
    CONFORMED PERIOD OF REPORT:	20191106
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20191106
    DATE AS OF CHANGE:		20191106

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WEC ENERGY GROUP, INC.
    		CENTRAL INDEX KEY:			0000783325
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		IRS NUMBER:				391391525
    		STATE OF INCORPORATION:			WI
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-09057
    		FILM NUMBER:		191195071

    	BUSINESS ADDRESS:
    		STREET 1:		231 W MICHIGAN ST
    		STREET 2:		P O BOX 1331
    		CITY:			MILWAUKEE
    		STATE:			WI
    		ZIP:			53201
    		BUSINESS PHONE:		414-221-2345

    	MAIL ADDRESS:
    		STREET 1:		231 WEST MICHIGAN STREET
    		STREET 2:		P O BOX 1331
    		CITY:			MILWAUKEE
    		STATE:			WI
    		ZIP:			53201

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WISCONSIN ENERGY CORP
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>a2019q3wecearnings8k.htm
    <DESCRIPTION>WEC ENERGY GROUP Q3 2019 EARNINGS RELEASE 8-K
    <TEXT>
    Document 1 - file: a2019q3wecearnings8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a2019q3wecearningsrelease.htm
    <DESCRIPTION>WEC ENERGY GROUP Q3 2019 EXHIBIT 99.1
    <TEXT>
    Document 2 - file: a2019q3wecearningsrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>wec-20191106.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 3 - file: wec-20191106.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.CAL
    <SEQUENCE>4
    <FILENAME>wec-20191106_cal.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
    <TEXT>
    Document 4 - file: wec-20191106_cal.xml

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    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>5
    <FILENAME>wec-20191106_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: wec-20191106_def.xml

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    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>6
    <FILENAME>wec-20191106_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: wec-20191106_lab.xml

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    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>7
    <FILENAME>wec-20191106_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: wec-20191106_pre.xml

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>wecenergylogoa13.jpg
    <TEXT>
    Document 8 - file: wecenergylogoa13.jpg

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

    Document 9 - RAW XML: FilingSummary.xml

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>10
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 10 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>11
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 11 - file: Financial_Report.xlsx

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

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>14
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 14 - file: MetaLinks.json

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

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>a2019q3wecearnings8k_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: a2019q3wecearnings8k_htm.html

    Document 16 - RAW XML: a2019q3wecearnings8k_htm.xml

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    <TYPE>ZIP
    <SEQUENCE>17
    <FILENAME>0000107815-19-000299-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: 0000107815-19-000299-xbrl.zip

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