Annual report pursuant to Section 13 and 15(d)

Derivative Instruments (Details Textual)

v2.4.1.9
Derivative Instruments (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 28, 2015
Derivative [Line Items]  
Amount of net losses, net of income tax effect, to be reclassified from AOCI to earnings within the next 12 months $ (16.4)us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
Fair value of derivative instruments in a net liability position due to counterparties $ 88.1us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangement
Designated as hedging instrument [Member] | Cash flow hedging [Member]  
Derivative [Line Items]  
Average maturity period for derivative instruments 3 years
Maximum maturity period for derivative instruments 5 years
Not designated as hedging instrument [Member] | Foreign currency contracts [Member]  
Derivative [Line Items]  
Average maturity period for derivative instruments 12 months
Not designated as hedging instrument [Member] | Commodity derivative contracts [Member]  
Derivative [Line Items]  
Average maturity period for derivative instruments 36 months
Maximum maturity period for derivative instruments 5 years