日韩三级片

Annual report pursuant to Section 13 and 15(d)

Cover

v3.22.0.1
Cover - USD ($)
 12 Months Ended
Dec. 31, 2021
Feb. 10, 2022
Jun. 30, 2021
Cover [Abstract] 听 听 听
Document Type 10-K 听 听
Document Annual Report true 听 听
Document Period End Date Dec. 31, 2021 听 听
Document Transition Report false 听 听
Entity File Number 1-8944 听 听
Entity Registrant Name CLEVELAND-CLIFFS INC. 听 听
Entity Incorporation, State or Country Code OH 听 听
Entity Tax Identification Number 34-1464672 听 听
Entity Address, Address Line One 200 Public Square, 听 听
Entity Address, City or Town Cleveland, 听 听
Entity Address, State or Province OH 听 听
Entity Address, Postal Zip Code 44114-2315 听 听
City Area Code 216 听 听
Local Phone Number 694-5700 听 听
Title of 12(b) Security Common Shares, par value $0.125 per share 听 听
Trading Symbol CLF 听 听
Security Exchange Name NYSE 听 听
Entity Well-known Seasoned Issuer Yes 听 听
Entity Voluntary Filers No 听 听
Entity Current Reporting Status Yes 听 听
Entity Interactive Data Current Yes 听 听
Entity Filer Category Large Accelerated Filer 听 听
Entity Small Business false 听 听
Entity Emerging Growth Company false 听 听
ICFR Auditor Attestation Flag true 听 听
Entity Shell Company false 听 听
Entity Public Float 听 听 $ 10,636,421,962
Entity Common Stock, Shares Outstanding 听 525,409,705 听
Entity Central Index Key 0000764065 听 听
Current Fiscal Year End Date --12-31 听 听
Document Fiscal Year Focus 2021 听 听
Document Fiscal Period Focus FY 听 听
Amendment Flag false 听 听
Documents Incorporated by Reference [Text Block] Portions of the registrant鈥檚 proxy statement for its 2022 annual meeting of shareholders are incorporated by reference into Part III. 听 听