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

REVENUE (Narrative) (Details)

v3.19.2

REVENUE (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
REVENUE (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Contract with Customer, Liability, Revenue Recognized			$ 47.1		$ 51.3
Take or Pay Contracts [Member]
Contract with Customer, Liability	$ 2.7		2.7		8.2
Not Designated as Hedging Instrument [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	74.8	$ 154.7	80.3	$ 198.5
Other Current Liabilities [Member]
Contract with Customer, Liability	12.8		12.8		12.9
Other Liabilities [Member]
Contract with Customer, Liability, Noncurrent	$ 34.3		$ 34.3		$ 38.5	$ 47.1	$ 51.4

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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