Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Narrative (Details)

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Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Feb. 28, 2021
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Loss Contingencies [Line Items]        
Amounts purchased under related-party arrangements   $ 154.7 $ 166.6 $ 238.8
Unfavorable fixed cost absorption   4,148.9 4,191.6 4,035.7
Comparable Adjustments        
Loss Contingencies [Line Items]        
Unfavorable fixed cost absorption   51.6 162.3 29.9
Wine and Spirits        
Loss Contingencies [Line Items]        
Unfavorable fixed cost absorption   (28.6)    
Wine and Spirits | Comparable Adjustments        
Loss Contingencies [Line Items]        
Loss on inventory write-down   (78.6)    
Insurance recovery $ 8.2      
Guarantee obligations        
Loss Contingencies [Line Items]        
Gain on release of indemnifications       3.7
Indemnification liabilities $ 17.0 17.0 9.1  
Guarantee obligations | Comparable Adjustments        
Loss Contingencies [Line Items]        
Gain on release of indemnifications   $ 0.0 $ 6.2 $ 0.0