Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
May 04, 2012	Apr. 29, 2011
Cash flows from operating activities:
Net income	$ 635	$ 945
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	248	216
Stock-based compensation expense	95	99
Effects of exchange rate changes on monetary assets and liabilities denominated in foreign currencies	(10)	0
Deferred income taxes	47	(63)
Provision for doubtful accounts — including financing receivables	63	47
Other	(5)	(5)
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	161	471
Financing receivables	71	21
Inventories	(68)	38
Other assets	48	110
Accounts payable	(671)	(925)
Deferred services revenue	33	191
Accrued and other liabilities	(785)	(680)
Change in cash from operating activities	(138)	465
Cash flows from investing activities:
Purchases	(673)	(240)
Maturities and sales	640	222
Capital expenditures	(142)	(137)
Proceeds from sale of facilities and land	0	12
Collections on purchased financing receivables	55	67
Acquisitions, net of cash received	(245)	(1,473)
Change in cash from investing activities	(365)	(1,549)
Cash flows from financing activities:
Repurchases of common stock	(324)	(450)
Issuance of common stock under employee plans	38	10
Issuance (repayment) of commercial paper (maturity 90 days or less), net	13	0
Proceeds from debt	596	1,930
Repayments of debt	(863)	(323)
Other	8	3
Change in cash from financing activities	(532)	1,170
Effect of exchange rate changes on cash and cash equivalents	(3)	62
Change in cash and cash equivalents	(1,038)	148
Cash and cash equivalents at beginning of the period	13,852	13,913
Cash and cash equivalents at the end of the period	$ 12,814	$ 14,061

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).