Cash, Cash Equivalents and Investments (Details) (USD $) In Millions, unless otherwise specified	Oct. 28, 2012		Oct. 30, 2011
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	$ 2,967		$ 7,148
Cash, Cash Equivalents and Investments Gross Unrealized Gains	25		28
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		2
Cash, Cash Equivalents and Investments Estimated Fair Value	2,992		7,174
Total cash and cash equivalents [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,392		5,960
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0		0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	1,392		5,960
Cash [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	876		297
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0		0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	876		297
Total fixed income securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,473		1,118
Cash, Cash Equivalents and Investments Gross Unrealized Gains	10		9
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		2
Cash, Cash Equivalents and Investments Estimated Fair Value	1,483		1,125
Cash equivalents [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	516		5,663
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0		0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	516		5,663
Cash equivalents [Member] | Money market funds [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	483		5,663
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0		0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	483		5,663
Cash equivalents [Member] | Municipal securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	33
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0
Cash, Cash Equivalents and Investments Estimated Fair Value	33
Short-term and long-term investments [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,575		1,188
Cash, Cash Equivalents and Investments Gross Unrealized Gains	25		28
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		2
Cash, Cash Equivalents and Investments Estimated Fair Value	1,600		1,214
Short-term and long-term investments [Member] | U.S. Treasury and agency securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	373		184
Cash, Cash Equivalents and Investments Gross Unrealized Gains	1		1
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	374		185
Short-term and long-term investments [Member] | Non-US government securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	29	[1]	40
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0	[1]	0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0	[1]	0
Cash, Cash Equivalents and Investments Estimated Fair Value	29	[1]	40
Short-term and long-term investments [Member] | Municipal securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	396		371
Cash, Cash Equivalents and Investments Gross Unrealized Gains	2		2
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	398		373
Short-term and long-term investments [Member] | Commercial paper, corporate bonds and medium-term notes [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	381		216
Cash, Cash Equivalents and Investments Gross Unrealized Gains	3		3
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		1
Cash, Cash Equivalents and Investments Estimated Fair Value	384		218
Short-term and long-term investments [Member] | Asset-backed and mortgage-backed securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	294		307
Cash, Cash Equivalents and Investments Gross Unrealized Gains	4		3
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		1
Cash, Cash Equivalents and Investments Estimated Fair Value	298		309
Short-term and long-term investments [Member] | Publicly traded equity securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	32		8
Cash, Cash Equivalents and Investments Gross Unrealized Gains	15		19
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	47		27
Short-term and long-term investments [Member] | Equity investments in privately-held companies [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	70		62
Cash, Cash Equivalents and Investments Gross Unrealized Gains	0		0
Cash, Cash Equivalents and Investments Gross Unrealized Losses	0		0
Cash, Cash Equivalents and Investments Estimated Fair Value	$ 70		$ 62

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