Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 5)

v2.4.1.9
Income Taxes (Details 5) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Feb. 28, 2013
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Balance as of March 1 $ 101.5us-gaap_UnrecognizedTaxBenefits $ 100.6us-gaap_UnrecognizedTaxBenefits $ 92.0us-gaap_UnrecognizedTaxBenefits
Increases as a result of tax positions taken during a prior period 0.1us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 2.3us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 1.3us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Decreases as a result of tax positions taken during a prior period (4.0)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (3.3)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (9.5)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Increases as a result of tax positions taken during the current period 7.7us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 11.1us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 19.5us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Decreases related to settlements with tax authorities (13.9)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (6.7)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities (0.3)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
Decreases related to lapse of applicable statute of limitations (5.9)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (2.5)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (2.4)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Balance as of last day of February $ 85.5us-gaap_UnrecognizedTaxBenefits $ 101.5us-gaap_UnrecognizedTaxBenefits $ 100.6us-gaap_UnrecognizedTaxBenefits