FINANCING RECEIVABLES - Allowance for Credit Losses (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 27, 2019	Jan. 28, 2018	Oct. 28, 2018
Allowance:
Beginning of period balance	$ 178	$ 187
Provision (credit)	7	2
Write-offs	(16)	(13)
Recoveries	9	11
Translation adjustments	(1)	3
End of period balance	177	190
Financing receivables:
End of period balance	29,890	28,519	$ 31,254
Balance individually evaluated	133	119
Retail Notes
Allowance:
Beginning of period balance	113	121
Provision (credit)	6
Write-offs	(11)	(7)
Recoveries	4	6
Translation adjustments	(1)	3
End of period balance	111	123
Financing receivables:
End of period balance	21,279	20,789
Balance individually evaluated	118	101
Revolving Charge Accounts
Allowance:
Beginning of period balance	43	40
Provision (credit)	(1)
Write-offs	(4)	(5)
Recoveries	5	5
End of period balance	43	40
Financing receivables:
End of period balance	2,737	2,652
Balance individually evaluated	2	2
Other Financing Receivables
Allowance:
Beginning of period balance	22	26
Provision (credit)	2	2
Write-offs	(1)	(1)
End of period balance	23	27
Financing receivables:
End of period balance	5,874	5,078
Balance individually evaluated	$ 13	$ 16