Share-Based Compensation Plans - Performance Share Activity (Details) - Performance shares - $ / shares shares in Millions |
12 Months Ended | ||
|---|---|---|---|
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2014 |
|
| Number of Shares | |||
| Beginning balance (in shares) | 1.1 | ||
| Granted (in shares) | 0.4 | ||
| Vested (in shares) | (0.3) | ||
| Change in units based on performance (in shares) | (0.1) | ||
| Forfeited (in shares) | (0.2) | ||
| Ending balance (in shares) | 0.9 | 1.1 | |
| Weighted-Average Grant Date Fair Value per Share | |||
| Beginning balance (usd per share) | $ 26.40 | ||
| Granted (usd per share) | 28.99 | $ 29.82 | $ 27.68 |
| Vested (usd per share) | 20.38 | ||
| Change in units based on performance (usd per share) | 28.97 | ||
| Forfeited (usd per share) | 27.87 | ||
| Ending balance (usd per share) | $ 29.28 | $ 26.40 | |
| Shares Paid for Tax Withholding for Share Based Compensation | 0.1 | ||