ÐÇ¿Õ´«Ã½

Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.19.3.a.u2
Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2019
Feb. 18, 2020
Jun. 28, 2019
Cover page. Ìý Ìý Ìý
Document Type 10-K Ìý Ìý
Document Annual Report true Ìý Ìý
Document Period End Date Dec. 31, 2019 Ìý Ìý
Document Transition Report false Ìý Ìý
Entity File Number 1-8944 Ìý Ìý
Entity Registrant Name CLEVELAND-CLIFFS INC. Ìý Ìý
Entity Incorporation, State or Country Code OH Ìý Ìý
Entity Tax Identification Number 34-1464672 Ìý Ìý
Entity Address, Address Line One 200 Public Square, Ìý Ìý
Entity Address, City or Town Cleveland, Ìý Ìý
Entity Address, State or Province OH Ìý Ìý
Entity Address, Postal Zip Code 44114-2315 Ìý Ìý
City Area Code 216 Ìý Ìý
Local Phone Number 694-5700 Ìý Ìý
Title of 12(b) Security Common Shares, par value $0.125 per share Ìý Ìý
Trading Symbol CLF Ìý Ìý
Security Exchange Name NYSE Ìý Ìý
Entity Well-known Seasoned Issuer Yes Ìý Ìý
Entity Voluntary Filers No Ìý Ìý
Entity Current Reporting Status Yes Ìý Ìý
Entity Interactive Data Current Yes Ìý Ìý
Entity Filer Category Large Accelerated Filer Ìý Ìý
Entity Small Business false Ìý Ìý
Entity Emerging Growth Company false Ìý Ìý
Entity Shell Company false Ìý Ìý
Entity Public Float Ìý Ìý $ 2,839,987,963
Entity Common Stock, Shares Outstanding Ìý 271,441,006 Ìý
Entity Central Index Key 0000764065 Ìý Ìý
Current Fiscal Year End Date --12-31 Ìý Ìý
Document Fiscal Year Focus 2019 Ìý Ìý
Document Fiscal Period Focus FY Ìý Ìý
Amendment Flag false Ìý Ìý
Documents Incorporated by Reference [Text Block] Portions of the registrant’s proxy statement for its 2020 annual meeting of shareholders are incorporated by reference into Part III. Ìý Ìý