Goodwill, Purchased Technology and Other Intangible Assets - Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 26, 2020	Jul. 28, 2019	Jul. 26, 2020	Jul. 28, 2019
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 14	$ 15	$ 40	$ 43
Cost of products sold
Finite-Lived Intangible Assets [Line Items]
Amortization expense	10	9	27	28
Research, development and engineering
Finite-Lived Intangible Assets [Line Items]
Amortization expense	0	1	0	1
Marketing and selling
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 4	$ 5	$ 13	$ 14