Cash, Cash Equivalents and Investments (Details) (USD $) In Millions, unless otherwise specified	Jul. 29, 2012		Oct. 30, 2011
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	$ 3,204		$ 7,148
Cash, Cash Equivalents and Investments Gross Unrealized Gains	31		28
Cash, Cash Equivalents and Investments Gross Unrealized Losses	13		2
Cash, Cash Equivalents and Investments Estimated Fair Value	3,222		7,174
Total cash and cash equivalents [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,529		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	1,529		5,960
Cash [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	734		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	734		297
Cash equivalents [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	795		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	795		5,663
Cash equivalents [Member] | Money market funds [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	758		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	758		5,663
Cash equivalents [Member] | Municipal securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	19
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	19
Cash equivalents [Member] | Commercial paper, corporate bonds and medium-term notes [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	18
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	18
Short-term and long-term investments [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,675		1,188
Cash, Cash Equivalents and Investments Gross Unrealized Gains	31		28
Cash, Cash Equivalents and Investments Gross Unrealized Losses	13		2
Cash, Cash Equivalents and Investments Estimated Fair Value	1,693		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	399		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	400		185
Short-term and long-term investments [Member] | Non-U.S. government securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	55	[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	55	[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	386		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	388		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	413		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	416		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	305		307
Cash, Cash Equivalents and Investments Gross Unrealized Gains	4		3
Cash, Cash Equivalents and Investments Gross Unrealized Losses	1		1
Cash, Cash Equivalents and Investments Estimated Fair Value	308		309
Short-term and long-term investments [Member] | Total fixed income securities [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,558		1,118
Cash, Cash Equivalents and Investments Gross Unrealized Gains	10		9
Cash, Cash Equivalents and Investments Gross Unrealized Losses	1		2
Cash, Cash Equivalents and Investments Estimated Fair Value	1,567		1,125
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	45		8
Cash, Cash Equivalents and Investments Gross Unrealized Gains	21		19
Cash, Cash Equivalents and Investments Gross Unrealized Losses	12		0
Cash, Cash Equivalents and Investments Estimated Fair Value	54		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	72		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	$ 72		$ 62

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