Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Financial Instruments (Details Textual)

v3.5.0.1
Fair Value of Financial Instruments (Details Textual) - USD ($)
$ in Millions
May 31, 2016
Feb. 29, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 8,278.4 $ 7,672.9
Carrying amount [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion 8,278.4 7,672.9
Fair value [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt, including current portion $ 8,154.8 $ 7,252.0