Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments (Details 1)

v2.4.0.6
Fair Value of Financial Instruments (Details 1) (USD $)
In Millions, unless otherwise specified
Aug. 31, 2012
Feb. 29, 2012
Assets:    
AFS debt securities $ 30.9 $ 28.5
Foreign currency contracts 3.2 13.2
Interest rate swap contracts 8.1 0
Diesel fuel swap contracts, Fair Value 1.5 0
Liabilities:    
Foreign currency contracts 3.1 6.4
Interest rate swap contracts 57.5 45.7
Recurring [Member]
   
Assets:    
AFS debt securities 30.9 28.5
Foreign currency contracts 3.2 13.2
Interest rate swap contracts 8.1  
Diesel fuel swap contracts, Fair Value 1.5  
Liabilities:    
Foreign currency contracts 3.1 6.4
Interest rate swap contracts 57.5 45.7
Recurring [Member] | Quoted Prices in Active Markets (Level 1) [Member]
   
Assets:    
AFS debt securities 0 0
Foreign currency contracts 0 0
Interest rate swap contracts 0  
Diesel fuel swap contracts, Fair Value 0  
Liabilities:    
Foreign currency contracts 0 0
Interest rate swap contracts 0 0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
   
Assets:    
AFS debt securities 0 0
Foreign currency contracts 3.2 13.2
Interest rate swap contracts 8.1  
Diesel fuel swap contracts, Fair Value 1.5  
Liabilities:    
Foreign currency contracts 3.1 6.4
Interest rate swap contracts 57.5 45.7
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
   
Assets:    
AFS debt securities 30.9 28.5
Foreign currency contracts 0 0
Interest rate swap contracts 0  
Diesel fuel swap contracts, Fair Value 0  
Liabilities:    
Foreign currency contracts 0 0
Interest rate swap contracts $ 0 $ 0