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Stock Based Compensation Plans (Details 4) (Restricted Stock Unit [Member], USD $)
In Millions, except Per Share data |
12 Months Ended | ||
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May 31, 2011
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May 31, 2010
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May 31, 2009
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Restricted Stock Unit [Member]
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| Restricted stock unit activity | |||
| Nonvested/ unearned shares outstanding, Beginning balance | 1.2 | 0.9 | 0.4 |
| Nonvested/ unearned shares, weighted-average grant date fair value per share, Beginning balance | $ 27.39 | $ 32.93 | $ 40.60 |
| Granted | 0.6 | 0.6 | 0.6 |
| Granted, Weighted-average grant-date fair value per share | $ 21.52 | $ 20.62 | $ 28.30 |
| Vested | (0.3) | (0.2) | (0.1) |
| Vested, Weighted-average grant-date fair value per share | $ 28.96 | $ 34.01 | $ 40.60 |
| Forfeited | (0.1) | (0.1) | |
| Forfeited, Weighted-average grant-date fair value per share | $ 25.08 | $ 28.88 | $ 34.65 |
| Nonvested/ unearned shares outstanding, Weighted-average grant-date fair value per share, Ending balance | $ 24.83 | $ 27.39 | $ 32.93 |
| Nonvested/ unearned shares outstanding, Ending balance | 1.4 | 1.2 | 0.9 |
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- Details
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- Definition
The number of shares under a share-based award plan other than a stock option plan that were settled during the reporting period due to a failure to satisfy vesting conditions pertaining to all option plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The weighted average fair value as of the grant date of share-based award plans other than stock option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares issuable under a share-based award plan pertaining to grants made during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average fair value at grant for nonvested share-based awards issued during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of outstanding awards on nonstock option plans (for example, phantom stock plan, stock appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The weighted average fair value of nonvested awards on share-based plans excluding option plans (for example, phantom stock plan, stock appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The decrease in the number of shares potentially issuable under a share-based award plan pertaining to awards for which the grantee has gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted average fair value as of grant dates pertaining to a share-based award plan other than a stock option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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