Annual report pursuant to Section 13 and 15(d)

Fair Value of Financial Instruments (Details Textual 1)

v3.8.0.1
Fair Value of Financial Instruments (Details Textual 1) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
May 31, 2017
Feb. 28, 2017
Feb. 28, 2018
Feb. 28, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Trademarks, carrying value   $ 3,377.7 $ 3,304.8 $ 3,377.7
Nonrecurring [Member] | Trademarks [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of trademarks     $ 86.8 46.0
Operating Segments [Member] | Beer [Member] | Nonrecurring [Member] | Trademarks [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Trademarks, carrying value $ 222.8      
Trademarks, estimated fair value 136.0      
Impairment of trademarks $ 86.8      
Operating Segments [Member] | Wine and Spirits [Member] | Trademarks [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Impairment of trademarks   8.4   8.4
Operating Segments [Member] | Wine and Spirits [Member] | Nonrecurring [Member] | Trademarks [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Trademarks, carrying value   37.6   37.6
Impairment of trademarks   37.6    
Operating Segments [Member] | Wine and Spirits [Member] | Nonrecurring [Member] | Trademarks [Member] | Canadian Divestiture [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Trademarks, carrying value   8.4   $ 8.4
Impairment of trademarks   $ 8.4