|
Consolidated Balance Sheets (Parenthetical) (USD $)
|
May 31, 2014
|
Feb. 28, 2014
|
|---|---|---|
| Consolidated Balance Sheets [Abstract] | ||
| Common stock, par value | $ 0.50 | $ 0.50 |
| Common stock, shares authorized | 350,000,000 | 350,000,000 |
| Common stock, shares issued | 218,483,173 | 221,685,984 |
| Common stock, shares outstanding | 218,483,173 | 221,685,984 |