Industry Segment Operations (Reconciliations of Total Segment) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 26, 2015	Apr. 27, 2014	Apr. 26, 2015	Apr. 27, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	$ 416	$ 387	$ 874	$ 717
Total segment operating income [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	579	570	1,107	1,024
Corporate and unallocated costs [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	(148)	(144)	(276)	(281)
Certain items associated with announced business combination [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	(29)	(16)	(49)	(27)
(Loss) gain on derivatives associated with announced business combination [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Income from operations	$ 14	$ (23)	$ 92	$ 1