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

ACQUISITIONS - AK Steel Consideration (Details)

v3.21.1

ACQUISITIONS - AK Steel Consideration (Details) $ / shares in Units, $ in Millions		3 Months Ended
	Mar. 13, 2020 USD ($) $ / shares shares	Mar. 31, 2021 shares	Dec. 31, 2020 shares	Mar. 31, 2020 shares	Dec. 31, 2019 shares
Business Acquisition [Line Items]
Common shares, outstanding (in shares) \| shares		499,214,434	477,517,372
AK Steel
Business Acquisition [Line Items]
Fair value of debt included in consideration	$ 914
Fair value of Cliffs common shares issued for AK Steel outstanding common stock	618
Other	3
Consideration transferred	$ 1,535
Common shares, outstanding (in shares) \| shares	317,000,000
Exchange ratio	0.400
Shares of Cliffs common shares issued to AK Steel stockholders (in shares) \| shares	127,000,000
Price per share of Cliffs common shares (in dollars per share) \| $ / shares	$ 4.87
ABC Facility \| AK Steel
Business Acquisition [Line Items]
Fair value of debt included in consideration	$ 590
7.50% Senior Secured Notes due July 2023 \| AK Steel
Business Acquisition [Line Items]
Fair value of debt included in consideration	324
Common Stock
Business Acquisition [Line Items]
Common shares, outstanding (in shares) \| shares		499,000,000	478,000,000	399,000,000	271,000,000
Common Stock \| AK Steel
Business Acquisition [Line Items]
Fair value of Cliffs common shares issued for AK Steel outstanding common stock	$ 618
Common Stock \| AK Steel
Business Acquisition [Line Items]
Exchange ratio		0.400

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