Cash, Cash Equivalents and Investments (Details 1) (USD $)	3 Months Ended			9 Months Ended
	Jul. 28, 2013		Jul. 29, 2012	Jul. 28, 2013		Jul. 29, 2012
Contractual maturities of investments
Due in one year or less, Cost	$ 195,000,000			$ 195,000,000
Due after one through five years, Cost	681,000,000			681,000,000
No single maturity date, Cost	381,000,000	[1]		381,000,000	[1]
Investments maturities, Cost	1,257,000,000			1,257,000,000
Due in one year or less, Estimated Fair Value	195,000,000			195,000,000
Due after one through five years, Estimated Fair Value	682,000,000			682,000,000
No single maturity date, Estimated Fair Value	408,000,000	[1]		408,000,000	[1]
Investments maturities, Estimated Fair Value	1,285,000,000			1,285,000,000
Marketable securities [Member]
Contractual maturities of investments
Investment impairments	0		0	0		0
Equity investments in privately-held companies [Member]
Contractual maturities of investments
Investment impairments	$ 3,000,000		$ 0	$ 5,000,000		$ 3,000,000

[1] Securities with no single maturity date include publicly-traded and privately-held equity securities, and asset-backed and mortgage-backed securities.