CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' INVESTMENT (PARENTHETICAL) - $ / shares	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 29, 2018	Apr. 30, 2017	Apr. 29, 2018	Apr. 30, 2017	Oct. 29, 2017
Statement of Stockholders' Equity [Abstract]
Declared cash dividends (in dollars per share)	$ 0.1875	$ 0.17	$ 0.375	$ 0.34	$ 0.68