Annual report pursuant to Section 13 and 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 12 Months Ended
Feb. 28, 2014
Nov. 30, 2013
Aug. 31, 2013
May 31, 2013
Feb. 28, 2013
Nov. 30, 2012
Aug. 31, 2012
May 31, 2012
Feb. 28, 2014
Feb. 28, 2013
Feb. 29, 2012
Basic and diluted earnings per common share                      
Income available to common stockholders $ 157.2 $ 211.0 $ 1,522.0 $ 52.9 $ 81.7 $ 109.5 $ 124.6 $ 72.0 $ 1,943.1 $ 387.8 $ 445.0
Class A Common Stock [Member]
                      
Weighted average common shares outstanding – basic:                      
Weighted average common shares outstanding - basic                 164,687,000 158,658,000 180,724,000
Weighted average common shares outstanding – diluted:                      
Weighted average common shares outstanding - basic                 164,687,000 158,658,000 180,724,000
Stock-based awards, primarily stock options                 9,416,000 8,117,000 4,341,000
Weighted average common shares outstanding - diluted                 197,570,000 190,307,000 208,655,000
Earnings per common share – basic:                      
Earnings per common share - basic (in dollars per share) $ 0.84 $ 1.13 $ 8.18 $ 0.29 $ 0.45 $ 0.61 $ 0.71 $ 0.39 $ 10.45 $ 2.15 $ 2.20
Earnings per common share – diluted:                      
Earnings per common share - diluted (in dollars per share) $ 0.79 $ 1.07 $ 7.74 $ 0.27 $ 0.43 $ 0.58 $ 0.67 $ 0.38 $ 9.83 $ 2.04 $ 2.13
Earnings Per Common Share (Textual)                      
Antidilutive shares not included in computation of earnings per common share                 300,000 300,000 8,900,000
Class B Convertible Common Stock [Member]
                      
Weighted average common shares outstanding – basic:                      
Weighted average common shares outstanding - basic                 23,467,000 23,532,000 23,590,000
Weighted average common shares outstanding – diluted:                      
Weighted average common shares outstanding - basic                 23,467,000 23,532,000 23,590,000
Weighted average common shares outstanding - diluted                 23,467,000 23,532,000 23,590,000
Earnings per common share – basic:                      
Earnings per common share - basic (in dollars per share) $ 0.76 $ 1.03 $ 7.43 $ 0.26 $ 0.41 $ 0.55 $ 0.64 $ 0.36 $ 9.50 $ 1.96 $ 2.00
Earnings per common share – diluted:                      
Earnings per common share - diluted (in dollars per share) $ 0.73 $ 0.98 $ 7.11 $ 0.25 $ 0.39 $ 0.53 $ 0.62 $ 0.35 $ 9.04 $ 1.87 $ 1.96