Stock And Stock-Based Incentive Plans (Schedule Of Common Stoc Repurchases) (Details) - Share Repurchase Program [Member] - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | |
|---|---|---|
May. 31, 2015 |
May. 31, 2014 |
|
| Number of shares repurchased | 1,776,900 | 3,841,900 |
| Average cost per share | $ 67.49 | $ 45.33 |
| Available for repurchase, as of end of year | $ 2,249.3 | $ 1,107.9 |