    <SEC-DOCUMENT>0000764065-24-000093-index.html : 20240403
    <SEC-HEADER>0000764065-24-000093.hdr.sgml : 20240403
    <ACCEPTANCE-DATETIME>20240403162941
    ACCESSION NUMBER:		0000764065-24-000093
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		6
    FILED AS OF DATE:		20240403
    DATE AS OF CHANGE:		20240403

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CLEVELAND-CLIFFS INC.
    		CENTRAL INDEX KEY:			0000764065
    		STANDARD INDUSTRIAL CLASSIFICATION:	METAL MINING [1000]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				341464672
    		STATE OF INCORPORATION:			OH
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08944
    		FILM NUMBER:		24819201

    	BUSINESS ADDRESS:
    		STREET 1:		200 PUBLIC SQUARE
    		STREET 2:		STE. 3300
    		CITY:			CLEVELAND
    		STATE:			OH
    		ZIP:			44114-2315
    		BUSINESS PHONE:		216-694-5700

    	MAIL ADDRESS:
    		STREET 1:		200 PUBLIC SQUARE
    		STREET 2:		STE. 3300
    		CITY:			CLEVELAND
    		STATE:			OH
    		ZIP:			44114-2315

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	CLIFFS NATURAL RESOURCES INC.
    		DATE OF NAME CHANGE:	20081015

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	CLEVELAND CLIFFS INC
    		DATE OF NAME CHANGE:	19920703
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>clf2024defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: clf2024defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>clf2024defa14aprimarylogoa.jpg
    <TEXT>
    Document 2 - file: clf2024defa14aprimarylogoa.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>clfdefa14anoticecard001.jpg
    <TEXT>
    Document 3 - file: clfdefa14anoticecard001.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>clfdefa14anoticecard002.jpg
    <TEXT>
    Document 4 - file: clfdefa14anoticecard002.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>clfdefa14anoticecard003.jpg
    <TEXT>
    Document 5 - file: clfdefa14anoticecard003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>clfdefa14anoticecard004.jpg
    <TEXT>
    Document 6 - file: clfdefa14anoticecard004.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>