REVENUE Contract cost (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Nov. 01, 2018
Revenue from Contract with Customer [Abstract]
Balance at October 31, 2018	$ 0
Costs capitalized on November 1, 2018 due to ASC 606 adoption		$ 29
Costs capitalized during the period	63
Costs amortized during the period	(64)
Balance at October 31, 2019	$ 28