Quarterly report pursuant to Section 13 or 15(d)

Goodwill (Details)

 v2.3.0.11
Goodwill (Details) (USD $)
In Millions
6 Months Ended 12 Months Ended
Aug. 31, 2011
Feb. 28, 2011
Feb. 28, 2010
Changes in the carrying amount of goodwill:      
Goodwill $ 2,632.7 $ 2,619.8 $ 3,423.2
Accumulated impairment losses     (852.6)
Net goodwill 2,632.7 2,619.8 2,570.6
Foreign currency translation adjustments 12.9 49.2  
Divestiture of business, Goodwill   (852.6)  
Accumulated impairment losses written off related to sale of business   852.6  
Consolidations and Eliminations [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill (13.0) (13.0) (13.0)
Net goodwill (13.0) (13.0) (13.0)
CWNA [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill 2,632.7 2,619.8 2,570.6
Net goodwill 2,632.7 2,619.8 2,570.6
Foreign currency translation adjustments 12.9 49.2  
CWAE [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill 0 0 852.6
Accumulated impairment losses     (852.6)
Net goodwill 0 0 0
Divestiture of business, Goodwill   (852.6)  
Accumulated impairment losses written off related to sale of business   852.6  
Crown Imports [Member]
     
Changes in the carrying amount of goodwill:      
Goodwill 13.0 13.0 13.0
Net goodwill $ 13.0 $ 13.0 $ 13.0