Industry Segment Operations - Reconciliations of Total Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2021	Jan. 26, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unallocated net sales	$ 5,162	$ 4,162
Share-based compensation	(107)	(93)
Total	1,283	1,042
Corporate and Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unallocated net sales	43	19
Unallocated cost of products sold and expenses	(167)	(115)
Share-based compensation	(107)	(93)
Severance and related charges	(144)	0
Total	$ (375)	$ (189)