# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0000764065-21-000131
Filing Date
2021-04-28
Accepted
2021-04-28 08:23:29
Documents
113
Period of Report
2021-03-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | clf-20210331.htm iXBRL | 10-Q | 2064830
2 | EX-4.1 | clf-202133110xqex41.htm | EX-4.1 | 900421
3 | EX-22 | clf-202133110xqex22.htm | EX-22 | 48298
4 | EX-31.1 | clf-202133110xqex311.htm | EX-31.1 | 11220
5 | EX-31.2 | clf-202133110xqex312.htm | EX-31.2 | 10969
6 | EX-32.1 | clf-202133110xqex321.htm | EX-32.1 | 6695
7 | EX-32.2 | clf-202133110xqex322.htm | EX-32.2 | 6529
8 | EX-95 | clf-202133110xqex95.htm | EX-95 | 103075
14 |  | clf-20210331_g1.jpg | GRAPHIC | 19593
15 |  | clf-20210331_g2.jpg | GRAPHIC | 18239
16 |  | clf-20210331_g3.jpg | GRAPHIC | 23672
17 |  | clf-20210331_g4.jpg | GRAPHIC | 19968
18 |  | clf-20210331_g5.jpg | GRAPHIC | 55515
19 |  | clf-20210331_g6.jpg | GRAPHIC | 51376
| Complete submission text file | 0000764065-21-000131.txt |  | 12651015

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
9 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | clf-20210331.xsd | EX-101.SCH | 70132
10 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | clf-20210331_cal.xml | EX-101.CAL | 132561
11 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | clf-20210331_def.xml | EX-101.DEF | 377489
12 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | clf-20210331_lab.xml | EX-101.LAB | 791753
13 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | clf-20210331_pre.xml | EX-101.PRE | 577991
20 | EXTRACTED XBRL INSTANCE DOCUMENT | clf-20210331_htm.xml | XML | 2238670

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)

EIN.: 341464672 | State of Incorp.: OH | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-08944 | Film No.: 21861456
SIC: 1000 Metal Mining