Quarterly report pursuant to Section 13 or 15(d)

Goodwill (Details Textual 1)

v3.6.0.2
Goodwill (Details Textual 1)
CAD in Millions, $ in Millions
1 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2016
CAD
Dec. 31, 2016
CAD
Nov. 30, 2016
USD ($)
Feb. 29, 2016
USD ($)
Goodwill [Line Items]          
Outstanding debt       $ 423.1 $ 99.8
Not designated as hedging instrument [Member] | Foreign currency contracts [Member] | Prepaid expenses and other [Member]          
Goodwill [Line Items]          
Foreign currency contracts       5.0 $ 4.8
Canadian Divestiture [Member] | Operating Segments [Member] | ConstellationWinesAndSpirits [Member] | Disposal group, Held-for-sale, Not discontinued operations [Member]          
Goodwill [Line Items]          
Net assets held for sale       165.5  
Canadian Divestiture [Member] | Not designated as hedging instrument [Member] | Foreign currency contracts [Member] | Prepaid expenses and other [Member]          
Goodwill [Line Items]          
Foreign currency contracts       $ 3.3  
Subsequent Event [Member] | Canadian Divestiture [Member]          
Goodwill [Line Items]          
Transaction value of divestiture $ 776.2   CAD 1,040.0    
Cash proceeds, net of outstanding debt 581.2 CAD 775.1      
Outstanding debt 195.0   CAD 260.0    
Net gain, Canadian Divestiture 255.0        
Subsequent Event [Member] | Canadian Divestiture [Member] | Trademarks [Member] | Operating Segments [Member] | ConstellationWinesAndSpirits [Member]          
Goodwill [Line Items]          
Impairment of trademarks 8.4        
Subsequent Event [Member] | Canadian Divestiture [Member] | Not designated as hedging instrument [Member] | Foreign currency contracts [Member] | Prepaid expenses and other [Member]          
Goodwill [Line Items]          
Foreign currency contracts $ 4.6