Cleveland-Cliffs Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

CAPITAL STOCK - Narrative (Details)

v3.22.1

CAPITAL STOCK - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	Mar. 11, 2021	Dec. 09, 2020	Mar. 31, 2022	Feb. 10, 2022	Dec. 31, 2021	Mar. 31, 2021	Feb. 11, 2021
Class of Stock [Line Items]
Authorized amount of stock repurchase				$ 1,000
Common stock repurchases			$ 19
Common shares, issued (in shares)			531,051,530		506,832,537		20,000,000
Debt Extinguished			$ 360
Common Stock
Class of Stock [Line Items]
Common stock repurchases (shares)			1,000,000
Common Shares in Treasury
Class of Stock [Line Items]
Common stock repurchases			$ 19
9.875% 2025 Senior Secured Notes
Class of Stock [Line Items]
Debt Extinguished	$ 322
Arcelor Mittal
Class of Stock [Line Items]
Common shares sold (in shares)							40,000,000
Cleveland-Cliffs Inc. \| 9.875% 2025 Senior Secured Notes
Class of Stock [Line Items]
Stated interest rate			9.875%			9.875%
Common Stock
Class of Stock [Line Items]
Share price (in dollars per share)							$ 16.12
Common Stock \| ArcelorMittal USA
Class of Stock [Line Items]
Stock issued during period, shares, acquisitions (in shares)		78,000,000
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock authorized (in shares)			3,000,000
Preferred stock outstanding (in shares)			0
Preferred stock issued (in shares)			0
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock authorized (in shares)			4,000,000
Preferred stock outstanding (in shares)			0
Preferred stock issued (in shares)			0

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