Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Plans (Details 3)

v2.4.0.8
Stock-Based Compensation Plans (Details 3) (Performance Stock Options [Member], USD $)
In Millions, except Per Share data, unless otherwise specified
 12 Months Ended
May 31, 2014
Performance Stock Options [Member]
  
Performance stock option activity [Roll Forward]  
Options outstanding, Beginning balance, Shares 2.7
Options outstanding, Beginning balance, Weighted-average exercise price per share $ 30.95
Options granted 0.1
Options granted, Weighted-average exercise price per share $ 36.66
Options exercised 0
Options exercised, Weighted-average exercise price per share $ 0
Options forfeited 0
Options forfeited, Weighted-average exercise price per share $ 0.00
Options expired 0
Options expired, Weighted-average exercise price per share $ 0
Options outstanding, Ending balance, Shares 2.8
Options outstanding, Ending balance, Weighted-average exercise price per share $ 31.25
Options outstanding, Ending balance, Weighted-average remaining contractual term 7 years 4 months 18 days
Options outstanding, Ending balance, Aggregate intrinsic value $ 27.8
Options exercisable, Ending balance, Shares 0
Options exercisable, Ending balance, Weighted-average exercise price per share $ 0
Options exercisable, Ending balance, Weighted-average remaining contractual term 0 years
Options exercisable, Ending balance, Aggregate intrinsic value $ 0