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Income Taxes (Details 5) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Feb. 28, 2014
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Feb. 28, 2013
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Feb. 29, 2012
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| Reconciliation of Unrecognized Tax Benefits [Roll Forward] | |||
| Balance as of March 1 | $ 100.6 | $ 92.0 | $ 154.4 |
| Increases as a result of tax positions taken during a prior period | 2.3 | 1.3 | 11.0 |
| Decreases as a result of tax positions taken during a prior period | (3.3) | (9.5) | (37.0) |
| Increases as a result of tax positions taken during the current period | 11.1 | 19.5 | 29.4 |
| Decreases related to settlements with tax authorities | (6.7) | (0.3) | (59.5) |
| Decreases related to lapse of applicable statute of limitations | (2.5) | (2.4) | (6.3) |
| Balance as of last day of February | $ 101.5 | $ 100.6 | $ 92.0 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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