    <SEC-DOCUMENT>0000764065-21-000086-index.html : 20210226
    <SEC-HEADER>0000764065-21-000086.hdr.sgml : 20210226
    <ACCEPTANCE-DATETIME>20210226161233
    ACCESSION NUMBER:		0000764065-21-000086
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		25
    CONFORMED PERIOD OF REPORT:	20201231
    FILED AS OF DATE:		20210226
    DATE AS OF CHANGE:		20210226

    FILER:

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

    	FILING VALUES:
    		FORM TYPE:		PRE 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08944
    		FILM NUMBER:		21688889

    	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>PRE 14A
    <SEQUENCE>1
    <FILENAME>clf2021pre14a.htm
    <DESCRIPTION>PRE 14A
    <TEXT>
    Document 1 - file: clf2021pre14a.htm

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    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>clf2021pre14abaldwin1.jpg
    <TEXT>
    Document 2 - file: clf2021pre14abaldwin1.jpg

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    <SEQUENCE>3
    <FILENAME>clf2021pre14aceopaymix1.jpg
    <TEXT>
    Document 3 - file: clf2021pre14aceopaymix1.jpg

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    <FILENAME>clf2021pre14afisher1.jpg
    <TEXT>
    Document 4 - file: clf2021pre14afisher1.jpg

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    <FILENAME>clf2021pre14afiveyear1.jpg
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    Document 5 - file: clf2021pre14afiveyear1.jpg

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    <FILENAME>clf2021pre14agerber1.jpg
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    Document 6 - file: clf2021pre14agerber1.jpg

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    <FILENAME>clf2021pre14agoncalves1.jpg
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    Document 7 - file: clf2021pre14agoncalves1.jpg

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    <FILENAME>clf2021pre14agoncalvessig1a.jpg
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    Document 8 - file: clf2021pre14agoncalvessig1a.jpg

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    <FILENAME>clf2021pre14agreen1.jpg
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    Document 9 - file: clf2021pre14agreen1.jpg

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    <SEQUENCE>10
    <FILENAME>clf2021pre14aharlan1.jpg
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    Document 10 - file: clf2021pre14aharlan1.jpg

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    <SEQUENCE>11
    <FILENAME>clf2021pre14alogogrey1.jpg
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    Document 11 - file: clf2021pre14alogogrey1.jpg

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    <FILENAME>clf2021pre14amichael1.jpg
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    Document 12 - file: clf2021pre14amichael1.jpg

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    <FILENAME>clf2021pre14amiller1.jpg
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    Document 13 - file: clf2021pre14amiller1.jpg

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    <FILENAME>clf2021pre14aneopaymix1.jpg
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    Document 14 - file: clf2021pre14aneopaymix1.jpg

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    Document 15 - file: clf2021pre14aoneyear1.jpg

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    <FILENAME>clf2021pre14aprimarylogoa1.jpg
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    Document 16 - file: clf2021pre14aprimarylogoa1.jpg

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    Document 17 - file: clf2021pre14aproxycard0011.jpg

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    <FILENAME>clf2021pre14aproxycard0021.jpg
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    Document 18 - file: clf2021pre14aproxycard0021.jpg

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    <FILENAME>clf2021pre14arychel1.jpg
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    Document 19 - file: clf2021pre14arychel1.jpg

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    Document 20 - file: clf2021pre14asecondarylogo1a.jpg

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    <FILENAME>clf2021pre14astoliar1.jpg
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    Document 21 - file: clf2021pre14astoliar1.jpg

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    <FILENAME>clf2021pre14ataylor1.jpg
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    Document 22 - file: clf2021pre14ataylor1.jpg

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    <SEQUENCE>23
    <FILENAME>clf2021pre14athreeyear1.jpg
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    Document 23 - file: clf2021pre14athreeyear1.jpg

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    <SEQUENCE>24
    <FILENAME>clf2021pre14ayocum1.jpg
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    Document 24 - file: clf2021pre14ayocum1.jpg

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    <SEQUENCE>25
    <FILENAME>clf2021prea14agrahamsig1a.jpg
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    Document 25 - file: clf2021prea14agrahamsig1a.jpg

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