Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Common Share (Details)

v2.4.0.8
Earnings Per Common Share (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 3 Months Ended
May 31, 2013
May 31, 2012
Basic and diluted earnings per common share    
Income available to common stockholders $ 52.9 $ 72.0
Class A Common Stock [Member]
    
Weighted average common shares outstanding - basic:    
Weighted average common shares outstanding - basic 161,729,000 162,259,000
Weighted average common shares outstanding - diluted    
Weighted average common shares outstanding - basic 161,729,000 162,259,000
Stock-based awards, primarily stock options 9,656,000 4,448,000
Weighted average common shares outstanding - diluted 194,884,000 190,261,000
Earnings per common share - basic:    
Earnings per common share - basic $ 0.29 $ 0.39
Earnings per common share - diluted:    
Earnings per common share - diluted $ 0.27 $ 0.38
Earnings Per Common Share (Textual)    
Antidilutive shares not included in computation of earnings per common share 1,000,000 9,800,000
Class B Convertible Common Stock [Member]
    
Weighted average common shares outstanding - basic:    
Weighted average common shares outstanding - basic 23,499,000 23,554,000
Weighted average common shares outstanding - diluted    
Weighted average common shares outstanding - basic 23,499,000 23,554,000
Weighted average common shares outstanding - diluted 23,499,000 23,554,000
Earnings per common share - basic:    
Earnings per common share - basic $ 0.26 $ 0.36
Earnings per common share - diluted:    
Earnings per common share - diluted $ 0.25 $ 0.35