CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares |
3 Months Ended | |
|---|---|---|
Jan. 31, 2019 |
Jan. 31, 2018 |
|
| Statement of Stockholders' Equity [Abstract] | ||
| Cash dividend declared per common share (in usd per share) | $ 0.38 | $ 0.36 |