Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Common Share (Details)

 v2.3.0.11
Earnings Per Common Share (Details) (USD $)
In Millions, except Share data
 3 Months Ended 6 Months Ended
Aug. 31, 2011
Aug. 31, 2010
Aug. 31, 2011
Aug. 31, 2010
Basic and diluted earnings per common share        
NET INCOME $ 162.7 $ 91.3 $ 237.2 $ 140.4
Class A Common Stock [Member]
        
Weighted average common shares outstanding - basic:        
Weighted average common shares outstanding - basic 186,629,000 185,455,000 186,837,000 189,084,000
Weighted average common shares outstanding - diluted        
Weighted average common shares outstanding - basic 186,629,000 185,455,000 186,837,000 189,084,000
Stock-based awards, primarily stock options 3,423,000 1,982,000 3,970,000 2,333,000
Weighted average common shares outstanding - diluted 213,645,000 211,149,000 214,406,000 215,136,000
Earnings per common share - basic:        
Earnings per common share - basic $ 0.78 $ 0.44 $ 1.14 $ 0.67
Earnings per common share - diluted:        
Earnings per common share - diluted $ 0.76 $ 0.43 $ 1.11 $ 0.65
Earnings Per Common Share (Textuals)        
Antidilutive shares not included in computation of earnings per common share 9,100,000 25,300,000 9,000,000 23,500,000
Class B Convertible Common Stock [Member]
        
Weighted average common shares outstanding - basic:        
Weighted average common shares outstanding - basic 23,593,000 23,712,000 23,599,000 23,719,000
Weighted average common shares outstanding - diluted        
Weighted average common shares outstanding - basic 23,593,000 23,712,000 23,599,000 23,719,000
Weighted average common shares outstanding - diluted 23,593,000 23,712,000 23,599,000 23,719,000
Earnings per common share - basic:        
Earnings per common share - basic $ 0.71 $ 0.40 $ 1.04 $ 0.61
Earnings per common share - diluted:        
Earnings per common share - diluted $ 0.70 $ 0.40 $ 1.02 $ 0.60