SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 27, 2019	Jan. 28, 2018	Oct. 28, 2018	Oct. 29, 2017
Transfer of inventory to equipment on operating leases	$ 106	$ 139
Accounts payable related to purchases of property and equipment	33	27
Equipment Operations
Restricted cash	10	7	$ 7	$ 6
Financial Services
Restricted cash	$ 87	$ 120	$ 104	$ 126