Leases - Lease Expense and Supplemental Information (Details) $ in Millions	3 Months Ended
	Jan. 26, 2020 USD ($)
Leases [Abstract]
Operating lease expense	$ 13
Weighted-average remaining lease term (in years)	5 years 6 months
Weighted-average discount rate	1.80%
Operating cash flows paid for operating leases	$ 13
Right-of-use assets obtained in exchange for operating lease liabilities	$ 5