Goodwill, Purchased Technology and Other Intangible Assets (Amortization Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 25, 2015	Jan. 26, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 46	$ 46
Cost of products sold [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	40	40
Marketing and selling [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	5	5
General and administrative [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 1	$ 1