Derivative Instruments and Hedging Activities (Gain/Loss Recognized in Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2016	Jan. 25, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives Not Designated as Hedging Instruments	$ 0	$ 78
Foreign exchange contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives Not Designated as Hedging Instruments	(4)	99
Foreign exchange contracts [Member] | Gain on derivatives associated with terminated business combination [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives Not Designated as Hedging Instruments	0	78
Foreign exchange contracts [Member] | General and administrative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives Not Designated as Hedging Instruments	$ (4)	$ 21