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

STOCK COMPENSATION PLANS (Detail)

v2.4.0.6

STOCK COMPENSATION PLANS (Detail) (USD $)	9 Months Ended
STOCK COMPENSATION PLANS (Detail) (USD $)	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Date Market Price (in usd per share)	$ 63.62
Average Expected Term (Years)	2 years 9 months 18 days
Expected Volatility	56.00%
Risk-Free Interest Rate	0.45%
Dividend Yield	3.93%
Fair Value (in usd per share)	$ 77.78
Fair Value (Percent of Grant Date Market Price)	122.26%
Ice Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted under the award (in shares)	426,610
Performance shares granted (in shares)	312,540
Restricted shares granted (in shares)	114,070
2010 to 2012 Performance Period [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum payout ratio	0.00%
2010 to 2012 Performance Period [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum payout ratio	150.00%
2011 To 2013 And The 2012 to 2014 Performance Periods [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum payout ratio	0.00%
2011 To 2013 And The 2012 to 2014 Performance Periods [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum payout ratio	200.00%
2012 Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares that may be issued (in shares)	6,000,000
Number of shares granted under the plan (in shares)	22,575

- Definition

Share Based Compensation Arrangement by Share Based Payment Award Grant Date Price

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Maximum number of shares that may be issued under the stock based compensation arrangement.

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Share Based Goods and Nonemployee Services Transaction Valuation Method, Payout Rate

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The discount rate from market value on offering date that participants pay for shares.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Net number of share options (or share units) granted during the period.

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Gross number of share options (or share units) granted during the period.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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