Cash, Cash Equivalents and Investments (Details) (USD $) In Millions, unless otherwise specified	Oct. 27, 2013		Oct. 28, 2012	Oct. 30, 2011	Oct. 31, 2010
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Cash	$ 611		$ 876
Cash equivalents:
Money market funds	1,095		483
Municipal securities	5		33
Total Cash equivalents	1,100		516
Total Cash and Cash equivalents	1,711		1,392	5,960	1,858
Short-term and long-term investments, Cost	1,149		1,575
Short-term and long-term investments, Gross Unrealized Gains	39		25
Short-term and long-term investments, Gross Unrealized Losses	3		0
Short-term and long-term investments, Estimated Fair Value	1,185		1,600
Equity investments in privately-held companies	76		70
Cash, Cash Equivalents and Investments, Cost	2,860		2,967
Cash, Cash Equivalents and Investments, Gross Unrealized Gains	39		25
Cash, Cash Equivalents and Investments, Gross Unrealized Losses	(3)		0
Cash, Cash Equivalents and Investments, Estimated Fair Value	2,896		2,992
Total fixed income securities [Member]
Cash equivalents:
Short-term and long-term investments, Cost	1,046		1,473
Short-term and long-term investments, Gross Unrealized Gains	6		10
Short-term and long-term investments, Gross Unrealized Losses	3		0
Short-term and long-term investments, Estimated Fair Value	1,049		1,483
U.S. Treasury and agency securities [Member]
Cash equivalents:
Short-term and long-term investments, Cost	170		373
Short-term and long-term investments, Gross Unrealized Gains	0		1
Short-term and long-term investments, Gross Unrealized Losses	0		0
Short-term and long-term investments, Estimated Fair Value	170		374
Non-US government securities [Member]
Cash equivalents:
Short-term and long-term investments, Cost	11	[1]	29
Short-term and long-term investments, Gross Unrealized Gains	0	[1]	0
Short-term and long-term investments, Gross Unrealized Losses	0	[1]	0
Short-term and long-term investments, Estimated Fair Value	11	[1]	29
Municipal securities [Member]
Cash equivalents:
Short-term and long-term investments, Cost	379		396
Short-term and long-term investments, Gross Unrealized Gains	2		2
Short-term and long-term investments, Gross Unrealized Losses	0		0
Short-term and long-term investments, Estimated Fair Value	381		398
Commercial paper, corporate bonds and medium-term notes [Member]
Cash equivalents:
Short-term and long-term investments, Cost	218		381
Short-term and long-term investments, Gross Unrealized Gains	2		3
Short-term and long-term investments, Gross Unrealized Losses	1		0
Short-term and long-term investments, Estimated Fair Value	219		384
Asset-backed and mortgage-backed securities [Member]
Cash equivalents:
Short-term and long-term investments, Cost	268		294
Short-term and long-term investments, Gross Unrealized Gains	2		4
Short-term and long-term investments, Gross Unrealized Losses	2		0
Short-term and long-term investments, Estimated Fair Value	268		298
Publicly traded equity securities [Member]
Cash equivalents:
Short-term and long-term investments, Cost	27		32
Short-term and long-term investments, Gross Unrealized Gains	33		15
Short-term and long-term investments, Gross Unrealized Losses	0		0
Short-term and long-term investments, Estimated Fair Value	$ 60		$ 47

[1] Includes agency and corporate debt securities guaranteed by non-U.S. governments, which consist of Germany, Canada and Australia.