Cleveland-Cliffs Inc. Quarterly report pursuant to Section 13 or 15(d)

Goodwill And Other Intangible Assets And Liabilities (Schedule Of Finite-Lived Intangible Assets By Major Class) (Details)

Goodwill And Other Intangible Assets And Liabilities (Schedule Of Finite-Lived Intangible Assets By Major Class) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Definite lived intangible assets - Gross Carrying Amount	$ 195.3	$ 194.5
Definite lived intangible assets - Accumulated Amortization	(52.3)	(47.5)
Definite lived intangible assets - Net Carrying Amount	143.0	147.0
Below-market sales contracts - Gross Carrying Amount	(293.4)	(329.3)
Below-market sales contracts - Accumulated Amortization	134.2	164.8
Below-market sales contracts - Net Carrying Amount	(159.2)	(164.5)
Permits [Member]
Finite-Lived Intangible Assets [Line Items]
Classification of intangible assets and liabilities	Intangible assets, net
Definite lived intangible assets - Gross Carrying Amount	135.1	134.3
Definite lived intangible assets - Accumulated Amortization	(25.2)	(23.2)
Definite lived intangible assets - Net Carrying Amount	109.9	111.1
Utility Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Classification of intangible assets and liabilities	Intangible assets, net
Definite lived intangible assets - Gross Carrying Amount	54.7	54.7
Definite lived intangible assets - Accumulated Amortization	(24.1)	(21.3)
Definite lived intangible assets - Net Carrying Amount	30.6	33.4
Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Classification of intangible assets and liabilities	Intangible assets, net
Definite lived intangible assets - Gross Carrying Amount	5.5	5.5
Definite lived intangible assets - Accumulated Amortization	(3.0)	(3.0)
Definite lived intangible assets - Net Carrying Amount	2.5	2.5
Below Market Sales Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Classification of intangible assets and liabilities	Below-market sales contracts
Below-market sales contracts - Gross Carrying Amount	(247.4)	(252.3)
Below-market sales contracts - Accumulated Amortization	134.2	140.5
Below-market sales contracts - Net Carrying Amount	(113.2)	(111.8)
Below-Market Sales Contracts Current [Member]
Finite-Lived Intangible Assets [Line Items]
Classification of intangible assets and liabilities	Other current liabilities
Below-market sales contracts - Gross Carrying Amount	(46.0)	(77.0)
Below-market sales contracts - Accumulated Amortization		24.3
Below-market sales contracts - Net Carrying Amount	$ (46.0)	$ (52.7)

- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References + Details