Derivative Instruments and Hedging Activities (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2016	Jul. 26, 2015	Jul. 31, 2016	Jul. 26, 2015	Oct. 25, 2015
Derivative [Line Items]
Time period for hedging of foreign currency transaction			24 months
Time period over which majority of after tax gain loss related to derivatives to be reclassified into earnings			12 months
Gain (loss) on derivatives associated with terminated business combination	$ 0	$ (3,000,000)	$ 0	$ 89,000,000
Interest rate contract [Member] | Designated as hedging instrument [Member] | Cash flow hedging [Member]
Derivative [Line Items]
Notional Amount					$ 600,000,000
Foreign exchange contracts [Member]
Derivative [Line Items]
Gain (loss) on derivatives associated with terminated business combination	(31,000,000)	8,000,000	(67,000,000)	120,000,000
Gain on derivatives associated with terminated business combination [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Gain (loss) on derivatives associated with terminated business combination	$ 0	$ (3,000,000)	$ 0	$ 89,000,000
Senior Notes [Member]
Derivative [Line Items]
Debt instrument term					10 years