CONSOLIDATED BALANCE SHEET (Parenthetical) - $ / shares shares in Millions |
Oct. 31, 2017 |
Oct. 31, 2016 |
|---|---|---|
| Stockholders' equity: | ||
| Preferred stock par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Preferred stock shares authorized (in shares) | 125 | 125 |
| Preferred Stock, Shares Issued (in shares) | 0 | 0 |
| Preferred Stock, Shares Outstanding (in shares) | 0 | 0 |
| Common stock par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Common stock shares authorized (in shares) | 2,000 | 2,000 |
| Common stock issued (in shares) | 322 | 614 |
| Treasury stock, at cost (in shares) | 0 | 290 |