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
Uncategorized
- Uncategorized Items - clf-20190331.xml

DERIVATIVE INSTRUMENTS (Narrative) (Details)

v3.19.1

DERIVATIVE INSTRUMENTS (Narrative) (Details) gal in Millions, MMcf in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($) gal MMcf	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) gal MMcf
Derivative [Line Items]
Derivative assets	$ 107.4		$ 91.5
Derivative liability	$ 10.5		$ 3.7
Natural Gas [Member]
Derivative [Line Items]
Investment Contract Volume \| MMcf	4.0		1.8
Diesel [Member]
Derivative [Line Items]
Investment Contract Volume \| gal	7.5		11.0
Customer Supply Agreement [Member] \| Not Designated as Hedging Instrument [Member] \| Revenue from Contract with Customer [Member]
Derivative [Line Items]
Amount of gain/(loss) recognized in income on derivative	$ 17.1	$ 41.9
Provisional Pricing Arrangements [Member] \| Not Designated as Hedging Instrument [Member] \| Revenue from Contract with Customer [Member]
Derivative [Line Items]
Amount of gain/(loss) recognized in income on derivative	$ (11.6)	$ 1.9

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The volume of a commodity or material specified in an investment contract.

+ References

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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