Annual report pursuant to Section 13 and 15(d)

Goodwill (Details)

v2.4.0.6
Goodwill (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 28, 2013
Feb. 29, 2012
Feb. 28, 2011
Changes in the carrying amount of goodwill:      
Goodwill $ 2,722.3 $ 2,632.9 $ 2,619.8
Accumulated impairment losses 0 0 0
Net goodwill 2,722.3 2,632.9 2,619.8
Purchase accounting allocations 110.0 9.3  
Foreign currency translation adjustments (20.6) 3.8  
Constellation Wines and Spirits [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill 2,722.3 2,632.9 2,619.8
Accumulated impairment losses 0 0 0
Net goodwill 2,722.3 2,632.9 2,619.8
Purchase accounting allocations 110.0 9.3  
Foreign currency translation adjustments (20.6) 3.8  
Crown Imports [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill 13.0 13.0 13.0
Accumulated impairment losses 0 0 0
Net goodwill 13.0 13.0 13.0
Purchase accounting allocations 0 0  
Foreign currency translation adjustments 0 0  
Consolidations and Eliminations [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill (13.0) (13.0) (13.0)
Accumulated impairment losses 0 0 0
Net goodwill (13.0) (13.0) (13.0)
Purchase accounting allocations 0 0  
Foreign currency translation adjustments $ 0 $ 0