Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Details Textual)

v2.4.0.6
Derivative Instruments (Details Textual) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Nov. 30, 2011
Feb. 28, 2011
Jun. 30, 2010
Feb. 28, 2010
Derivative Instruments (Textual)        
Maturity of foreign currency contracts Less than 12 months      
Notional value of undesignated foreign currency contracts outstanding $ 185.5 $ 160.0    
Undesignated interest rate swap agreements 0 0   2,400.0
Average maturity period of cash flow hedges 3 years or less      
Maximum maturity period of cash flow hedges 5 years      
Notional value of cash flow designated foreign currency contracts outstanding 324.5 166.4    
Interest rate swap agreements designated as cash flow hedges 500.0 500.0 500.0 1,200.0
Amount of net gains, net of income tax effect, to be reclassified from AOCI to earnings within the next 12 months 0.1      
Fair value of derivative instruments in a net liability position due to counterparties 45.1      
Fair value of derivative instruments in a net receivable position due from counterparties $ 9.5