Annual report pursuant to Section 13 and 15(d)

Derivative Instruments (Details)

v3.7.0.1
Derivative Instruments (Details) - USD ($)
Feb. 28, 2017
Feb. 29, 2016
Apr. 30, 2012
Designated as hedging instrument [Member] | Foreign currency contracts [Member]      
Derivative [Line Items]      
Aggregate notional value of derivative instruments $ 981,700,000 $ 731,600,000  
Designated as hedging instrument [Member] | Interest rate swap contracts [Member]      
Derivative [Line Items]      
Aggregate notional value of derivative instruments 250,000,000 600,000,000  
Not designated as hedging instrument [Member] | Foreign currency contracts [Member]      
Derivative [Line Items]      
Aggregate notional value of derivative instruments 389,900,000 975,600,000  
Not designated as hedging instrument [Member] | Interest rate swap contracts [Member]      
Derivative [Line Items]      
Aggregate notional value of derivative instruments 0 1,000,000,000 $ 500,000,000.0
Not designated as hedging instrument [Member] | Commodity derivative contracts [Member]      
Derivative [Line Items]      
Aggregate notional value of derivative instruments $ 153,200,000 $ 198,700,000