Income Taxes (Details 4) - USD ($) $ in Millions	12 Months Ended
Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefit liabilities, beginning of period	$ 85.5	$ 101.5	$ 100.6
Increases as a result of tax positions taken during a prior period	0.1	0.1	2.3
Decreases as a result of tax positions taken during a prior period	(1.2)	(4.0)	(3.3)
Increases as a result of tax positions taken during the current period	3.7	7.7	11.1
Decreases related to settlements with tax authorities	(54.7)	(13.9)	(6.7)
Decreases related to lapse of applicable statute of limitations	(3.0)	(5.9)	(2.5)
Unrecognized tax benefit liabilities, end of period	$ 30.4	$ 85.5	$ 101.5

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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