Derivative Instruments and Hedging Activities (Derivatives Not Designated as Hedging Instruments) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 25, 2020	Oct. 27, 2019
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss)  Recognized in Consolidated Statement of Operations	$ 60	$ (4)	$ (8)
Foreign exchange contracts | General and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss)  Recognized in Consolidated Statement of Operations	0	0	(8)
Foreign exchange contracts | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss)  Recognized in Consolidated Statement of Operations	29	(10)	0
Total return swap | Interest and other income, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss)  Recognized in Consolidated Statement of Operations	(1)	(1)	0
Total return swap | Cost of products sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss)  Recognized in Consolidated Statement of Operations	3	1	0
Total return swap | Operating expenses
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss)  Recognized in Consolidated Statement of Operations	$ 29	$ 6	$ 0