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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0000764065-21-000084
Filing Date
2021-02-26
Accepted
2021-02-26 08:50:20
Documents
178
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K clf-20201231.htm   iXBRL 10-K 5009521
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20 EX-23 clf-2020123110xkex23.htm EX-23 4986
21 EX-24 clf-2020123110xkex24.htm EX-24 11635
22 EX-31.1 clf-2020123110xkex311.htm EX-31.1 10685
23 EX-31.2 clf-2020123110xkex312.htm EX-31.2 10627
24 EX-32.1 clf-2020123110xkex321.htm EX-32.1 6606
25 EX-32.2 clf-2020123110xkex322.htm EX-32.2 6623
26 EX-95 clf-2020123110xkex95.htm EX-95 103581
32 clf-20201231_g1.jpg GRAPHIC 42668
33 clf-20201231_g2.jpg GRAPHIC 1340521
34 clf-20201231_g3.jpg GRAPHIC 115879
35 clf-20201231_g4.jpg GRAPHIC 24857
36 clf-20201231_g5.jpg GRAPHIC 25505
37 clf-20201231_g6.jpg GRAPHIC 23948
38 clf-20201231_g7.jpg GRAPHIC 59170
  Complete submission text file 0000764065-21-000084.txt   31039631

Data Files

Seq Description Document Type Size
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31 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT clf-20201231_pre.xml EX-101.PRE 1143614
39 EXTRACTED XBRL INSTANCE DOCUMENT clf-20201231_htm.xml XML 5443714
Mailing Address 200 PUBLIC SQUARE STE. 3300 CLEVELAND OH 44114-2315
Business Address 200 PUBLIC SQUARE STE. 3300 CLEVELAND OH 44114-2315 216-694-5700
CLEVELAND-CLIFFS INC. (Filer) CIK: 0000764065 (see all company filings)

IRS No.: 341464672 | State of Incorp.: OH | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-08944 | Film No.: 21684006
SIC: 1000 Metal Mining