Cleveland-Cliffs Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 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

ACQUISITIONS - Consideration (Details)

v3.25.2

ACQUISITIONS - Consideration (Details) $ / shares in Units, $ / shares in Units, $ in Millions, $ in Millions	Nov. 01, 2024 USD ($) shares	Nov. 01, 2024 CAD ($) $ / shares shares	Jun. 30, 2025 shares	Dec. 31, 2024 shares	Nov. 01, 2024 USD ($) $ / shares shares
Business Acquisition [Line Items]
Common shares, outstanding (in shares)			494,679,326	493,948,905
Stelco Holdings Inc
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 2,450	$ 3,418
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Fair Value Method	343	343
Business Combination, Consideration Transferred, Debt Consideration \| $					$ 415
Business Combination, Consideration Transferred \| $	$ 3,208
Common shares, outstanding (in shares)					54,448,388
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number					2,516,415
Total consideration shares					56,964,803
Price per share (in dollars per share) \| (per share)		$ 60.00			$ 13.27
Foreign Currency Exchange Rate, Translation					0.7168
Business Acquisition, Shares Exchange Ratio	0.454	0.454
Shares of Cliffs common shares issued to Stelco Holdings stockholders (in shares)	25,862,021	25,862,021

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