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Earnings Per Share (Calculation of Earnings Per Common Share on Basic and Diluted) (Details) (USD $)
In Millions, except Share data |
3 Months Ended | 6 Months Ended | ||
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Jun. 30, 2011
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Jun. 30, 2010
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Jun. 30, 2011
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Jun. 30, 2010
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| Earnings Per Share | Ìý | Ìý | Ìý | Ìý |
| Net income attributable to Cliffs shareholders | $ 407.7 | $ 260.7 | $ 831.1 | $ 338.1 |
| Weighted average number of shares: | Ìý | Ìý | Ìý | Ìý |
| Basic | 139,000,000 | 135,319,000 | 137,243,000 | 135,247,000 |
| Employee stock plans | 800,000 | 800,000 | 800,000 | 800,000 |
| Diluted | 139,783,000 | 136,134,000 | 137,987,000 | 136,041,000 |
| Earnings per common share attributable to Cliffs shareholders - Basic | $ 2.93 | $ 1.93 | $ 6.06 | $ 2.50 |
| Earnings per common share attributable to Cliffs shareholders - Diluted | $ 2.92 | $ 1.92 | $ 6.02 | $ 2.49 |
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- Details
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the income or loss from continuing operations attributable to the parent which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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