Annual report pursuant to Section 13 and 15(d)

Fair Value of Financial Instruments (Details)

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Fair Value of Financial Instruments (Details) (USD $)
In Millions, unless otherwise specified
Feb. 29, 2012
Feb. 28, 2011
Feb. 28, 2010
Feb. 28, 2009
Assets:        
Cash and cash investments, Carrying Amount $ 85.8 $ 9.2 $ 43.5 $ 13.1
Cash and cash investments, Fair Value 85.8 9.2    
Accounts receivable, Carrying Amount 436.0 416.2    
Accounts receivable, Fair Value 436.0 416.2    
AFS debt securities, Carrying Amount 28.5 40.8    
AFS debt securities, Fair Value 28.5 40.8    
Foreign currency contracts, Carrying Amount 13.2 17.0    
Foreign currency contracts, Fair Value 13.2 17.0    
Interest rate swap contracts, Carrying Amount 0 1.7    
Interest rate swap contracts, Fair Value 0 1.7    
Notes receivable, Carrying Amount 1.6 6.0    
Notes receivable, Fair Value 1.6 6.0    
Liabilities:        
Notes payable to banks 377.9 83.7    
Notes payable to banks, Fair Value 377.6 83.8    
Accounts payable, Carrying Amount 130.5 129.2    
Accounts payable, Fair Value 130.5 129.2    
Long-term debt, including current portion, Carrying Amount 2,751.6 3,152.6    
Long-term debt, including current portion, Fair Value 3,007.9 3,298.2    
Foreign currency contracts, Carrying Amount 6.4 5.3    
Foreign currency contracts, Fair Value 6.4 5.3    
Interest rate swap contracts, Carrying Amount 45.7 6.1    
Interest rate swap contracts, Fair Value $ 45.7 $ 6.1