Contract Balances - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 26, 2020	Jul. 28, 2019	Jul. 26, 2020	Jul. 28, 2019
Revenue from Contract with Customer [Abstract]
Revenue recognized			$ 990,000,000
Impairment loss on accounts receivable	$ 0	$ 0	0	$ 0
Impairment loss on contract assets	0	$ 0	0	$ 0
Long-term Contract with Customer
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation	$ 949,000,000		$ 949,000,000