Goodwill, Purchased Technology and Other Intangible Assets (Amortization Expense by Category) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 26, 2014	Oct. 27, 2013	Oct. 28, 2012
Indefinite Lived Intangible Assets By Category [Abstract]
Amortization expense	$ 184	$ 199	$ 224
Cost of products sold [Member]
Indefinite Lived Intangible Assets By Category [Abstract]
Amortization expense	159	166	185
Research, development and engineering [Member]
Indefinite Lived Intangible Assets By Category [Abstract]
Amortization expense	1	1	1
Marketing and selling [Member]
Indefinite Lived Intangible Assets By Category [Abstract]
Amortization expense	21	26	30
General and administrative [Member]
Indefinite Lived Intangible Assets By Category [Abstract]
Amortization expense	$ 3	$ 6	$ 8