Cleveland-Cliffs Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 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

ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Asset Retirement Obligation Disclosure) (Details)

v3.8.0.1

ENVIRONMENTAL AND MINE CLOSURE OBLIGATIONS (Asset Retirement Obligation Disclosure) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accrual for Environmental Loss Contingencies	$ 2.9	$ 2.8
Mine Reclamation and Closing Liability, current and noncurrent	197.2	204.0
Environmental Loss Contingency And Mine Reclamation And Closing Liability Current And Noncurrent	200.1	206.8
Environmental Loss Contingency And Mine Reclamation And Closing Liability Current	3.6	12.9
Environmental Loss Contingency And Mine Reclamation And Closing Liability Noncurrent	196.5	193.9
Asset Retirement Obligation	197.2	204.0	$ 230.4
Asset Retirement Obligation, Accretion Expense	14.9	14.0
Asset Retirement Obligation, Foreign Currency Translation Gain (Loss)	1.5	(0.2)
Asset Retirement Obligation, Liabilities Settled	(5.6)	(2.2)
Asset Retirement Obligation, Revision of Estimate	(17.6)	(38.0)
Previously Owned Or Operating Facilities [Member] \| LTV Steel Mining Company [Member]
Mine Reclamation and Closing Liability, current and noncurrent	28.6	25.5
U.S. Iron Ore [Member] \| Owned Or Operating Facilities [Member]
Mine Reclamation and Closing Liability, current and noncurrent	168.4	187.8
Asia Pacific Iron Ore [Member] \| Owned Or Operating Facilities [Member]
Mine Reclamation and Closing Liability, current and noncurrent	$ 28.8	$ 16.2

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Environmental Loss Contingency And Mine Reclamation And Closing Liability Current

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Amount of environmental loss contingencies, such as presence of hazardous waste, relevant information from reports issued by regulators, and estimated costs to achieve compliance with regulatory requirements. As well as, the amount of a reclamation and mine closing liability that is associated with a legal obligation for the closure and reclamation of a mine including the removal of buildings, equipment, machinery and other physical remnants of mining, closure of tailings impoundments, leach pads and other mine features, and contouring, covering and revegetation of waste rock piles and other disturbed areas.

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Mine Reclamation and Closing Liability, current and noncurrent

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

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Amount of foreign currency translation gain (loss) which decreases (increases) asset retirement obligations.

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Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

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