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)

v3.22.2.2

CAPITAL STOCK - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended			9 Months Ended
	Mar. 11, 2021	Dec. 09, 2020	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2022	Feb. 10, 2022	Dec. 31, 2021	Feb. 11, 2021
Class of Stock [Line Items]
Authorized amount of stock repurchase							$ 1,000
Common stock repurchases			$ 34	$ 157	$ 19
Common shares, issued (in shares)			531,051,530			531,051,530		506,832,537	20,000,000
Debt Extinguished			$ 41			$ 1,315
Common Stock
Class of Stock [Line Items]
Common stock repurchases (shares)			2,000,000	8,000,000	1,000,000	10,500,000
Common Shares in Treasury
Class of Stock [Line Items]
Common stock repurchases			$ 34	$ 157	$ 19	$ 210
9.875% 2025 Senior Secured Notes
Class of Stock [Line Items]
Debt Extinguished	$ 322		$ 0			$ 607
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			3,000,000
Preferred stock outstanding (in shares)			0			0
Preferred stock issued (in shares)			0			0
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock authorized (in shares)			4,000,000			4,000,000
Preferred stock outstanding (in shares)			0			0
Preferred stock issued (in shares)			0			0

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