Cash, Cash Equivalents and Investments (Details) (USD $) In Millions, unless otherwise specified	Apr. 29, 2012		Oct. 30, 2011
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	$ 3,209		$ 7,148
Cash, Cash Equivalents and Investments Gross Unrealized Gains	39		28
Cash, Cash Equivalents and Investments Gross Unrealized Losses	7		2
Cash, Cash Equivalents and Investments Estimated Fair Value	3,241		7,174
Total cash and cash equivalents [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,761		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	1,761		5,960
Cash [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	620		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	620		297
Cash equivalents [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,141		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	1,141		5,663
Cash equivalents [Member] | Money market funds [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,141		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	1,141		5,663
Short-term and long-term investments [Member]
Summary of Cash, Cash Equivalents and Investments
Cash, Cash Equivalents and Investments Cost	1,448		1,188
Cash, Cash Equivalents and Investments Gross Unrealized Gains	39		28
Cash, Cash Equivalents and Investments Gross Unrealized Losses	7		2
Cash, Cash Equivalents and Investments Estimated Fair Value	1,480		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	302		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	303		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	22	[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	22	[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	395		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	397		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	314		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	317		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	301		307
Cash, Cash Equivalents and Investments Gross Unrealized Gains	3		3
Cash, Cash Equivalents and Investments Gross Unrealized Losses	1		1
Cash, Cash Equivalents and Investments Estimated Fair Value	303		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	1,334		1,118
Cash, Cash Equivalents and Investments Gross Unrealized Gains	9		9
Cash, Cash Equivalents and Investments Gross Unrealized Losses	1		2
Cash, Cash Equivalents and Investments Estimated Fair Value	1,342		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	30		19
Cash, Cash Equivalents and Investments Gross Unrealized Losses	6		0
Cash, Cash Equivalents and Investments Estimated Fair Value	69		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	69		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	$ 69		$ 62

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