Industry Segment Operations (Net Sales and Long-lived Assets) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 26, 2014	Jul. 27, 2014	Apr. 27, 2014	Jan. 26, 2014	Oct. 27, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 26, 2014	Oct. 27, 2013	Oct. 28, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 2,264	$ 2,265	$ 2,353	$ 2,190	$ 1,988	$ 1,975	$ 1,973	$ 1,573	$ 9,072	$ 7,509	$ 8,719
Long-lived Assets	924				914				924	914	988
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									1,966	1,473	1,749
Long-lived Assets	636				620				636	620	666
Taiwan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									2,702	2,640	2,411
Long-lived Assets	34				37				34	37	36
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									1,608	787	783
Long-lived Assets	61				65				61	65	74
Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									965	924	1,897
Long-lived Assets	12				8				12	8	9
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									817	685	704
Long-lived Assets	5				4				5	4	6
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									658	680	863
Long-lived Assets	99				99				99	99	110
Southeast Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									356	320	312
Long-lived Assets	77				81				77	81	87
Total outside United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									7,106	6,036	6,970
Long-lived Assets	$ 288				$ 294				$ 288	$ 294	$ 322