Accounts Receivable, Net (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 28, 2018	Oct. 29, 2017	Oct. 30, 2016	Oct. 25, 2015
Receivables [Abstract]
Accounts receivable sold	$ 1,600,000,000	$ 746,000,000	$ 75,000,000
Discount letters of credit issued during period	37,000,000	0	0
Discount applied to promissory notes	0	0	0
Allowance for doubtful accounts	$ 33,000,000	$ 34,000,000	$ 51,000,000	$ 49,000,000