Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Details Textual)

v2.4.0.8
Derivative Instruments (Details Textual) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Aug. 31, 2013
Feb. 28, 2013
Apr. 30, 2012
Derivative [Line Items]      
Notional value of undesignated foreign currency contracts outstanding $ 724.7 $ 355.1  
Notional value of undesignated interest rate swap agreements 1,000.0 1,000.0 500.0
Notional value of undesignated diesel fuel swap contracts 36.6 0  
Notional value of cash flow designated foreign currency contracts outstanding 210.8 220.3  
Notional value of cash flow designated interest rate swap agreements outstanding 500.0 500.0 500.0
Notional value of cash flow designated diesel fuel swap contracts outstanding 0 17.4  
Amount of net losses, net of income tax effect, to be reclassified from AOCI to earnings within the next 12 months (6.8)    
Fair value of derivative instruments in a net liability position due to counterparties 38.6    
Fair value of derivative instruments in a net receivable position due from counterparties $ 8.8    
Not designated as hedging instrument [Member]
     
Derivative [Line Items]      
Maturity of foreign currency contracts 12 months    
Maturity of diesel fuel swap contracts 36 months    
Designated as hedging instrument [Member]
     
Derivative [Line Items]      
Average maturity period of cash flow hedges 3 years    
Maximum maturity period of cash flow hedges 5 years