Cash, Cash Equivalents and Investments (Tables)

6 Months Ended

May 01, 2011

Cash, Cash Equivalents and Investments (Tables) [Abstract]

Summary of cash, cash equivalents and investments

			Gross		Gross
			Unrealized		Unrealized		Estimated
May 1, 2011	Cost		Gains		Losses		Fair Value
	(In millions)
Cash	$	478	$	—	$	—	$	478
Cash equivalents:
Money market funds		1,746		—		—		1,746
U.S. commercial paper, corporate bonds and medium-term notes		169		—		—		169
U.S. Treasury and agency securities		150		—		—		150
Obligations of states and political subdivisions		15		—		—		15
Total Cash equivalents		2,080		—		—		2,080
Total Cash and Cash equivalents	$	2,558	$	—	$	—	$	2,558
Short-term and long-term investments:
U.S. Treasury and agency securities	$	543	$	3	$	—	$	546
Obligations of states and political subdivisions		516		3		—		519
U.S. commercial paper, corporate bonds and medium-term notes		456		4		—		460
Other debt securities*		400		3		1		402
Total fixed income securities		1,915		13		1		1,927
Publicly traded equity securities		8		25		—		33
Equity investments in privately-held companies		59		—		—		59
Total short-term and long-term investments	$	1,982	$	38	$	1	$	2,019
Total Cash, Cash equivalents and Investments	$	4,540	$	38	$	1	$	4,577

			Gross		Gross
			Unrealized		Unrealized		Estimated
October 31, 2010	Cost		Gains		Losses		Fair Value
	(In millions)
Cash	$	701	$	—	$	—	$	701
Cash equivalents:
Money market funds		1,139		—		—		1,139
Obligations of states and political subdivisions		18		—		—		18
Total Cash equivalents		1,157		—		—		1,157
Total Cash and Cash equivalents	$	1,858	$	—	$	—	$	1,858
Short-term and long-term investments:
U.S. Treasury and agency securities	$	665	$	8	$	—	$	673
Obligations of states and political subdivisions		500		5		—		505
U.S. commercial paper, corporate bonds and medium-term notes		502		7		—		509
Other debt securities*		261		3		1		263
Total fixed income securities		1,928		23		1		1,950
Publicly traded equity securities		9		16		—		25
Equity investments in privately-held companies		59		—		—		59
Total short-term and long-term investments	$	1,996	$	39	$	1	$	2,034
Total Cash, Cash equivalents and Investments	$	3,854	$	39	$	1	$	3,892

* Other debt securities consist primarily of investment grade asset-backed and mortgage-backed securities.

Contractual maturities of investments

			Estimated
	Cost		Fair Value
	(In millions)
Due in one year or less	$	710	$	712
Due after one through five years		803		811
Due after five years		3		3
No single maturity date		466		493
	$	1,982	$	2,019

Gains and losses on investments

	Three Months Ended				Six Months Ended
	May 1,		May 2,		May 1,		May 2,
	2011		2010		2011		2010
Gross realized gains	$	8	$	2	$	13	$	2
Gross realized losses	$	1	$	—	$	1	$	1

Gross unrealized losses and the fair market value of investments

	In Loss Position for
	Less Than 12 Months				Total
			Gross				Gross
			Unrealized				Unrealized
	Fair Value		Losses		Fair Value		Losses
	(In millions)
Other debt securities	$	127	$	1	$	127	$	1
Total	$	127	$	1	$	127	$	1