Investments (Details) (USD $) In Millions, unless otherwise specified	Aug. 02, 2013	Feb. 01, 2013
Investments:
Short-term investments	$ 643	$ 208
Long-term investments	2,048	2,565
Total investments at carrying value	2,691	2,773
Total investments at amortized cost	2,684	2,760
Unrealized gains of investments	9	14
Unrealized losses of investments	(2)	(1)
Short-term Investments
Investments:
Amortized cost of debt securities	641	207
Unrealized gains of investments	2	1
Unrealized losses of investments	0	0
Short-term Investments \| Non- U.S. government and agencies
Investments:
Fair value of debt securities	38	13
Amortized cost of debt securities	38	13
Unrealized gains of investments	0	0
Unrealized losses of investments	0	0
Short-term Investments \| Commercial paper
Investments:
Fair value of debt securities	5	6
Amortized cost of debt securities	5	6
Unrealized gains of investments	0	0
Unrealized losses of investments	0	0
Short-term Investments \| U.S. corporate
Investments:
Fair value of debt securities	390	113
Amortized cost of debt securities	389	112
Unrealized gains of investments	1	1
Unrealized losses of investments	0	0
Short-term Investments \| International corporate
Investments:
Fair value of debt securities	210	76
Amortized cost of debt securities	209	76
Unrealized gains of investments	1	0
Unrealized losses of investments	0	0
Long-term investments
Investments:
Amortized cost of debt securities	2,043	2,553
Unrealized gains of investments	7	13
Unrealized losses of investments	(2)	(1)
Long-term investments \| Non- U.S. government and agencies
Investments:
Fair value of debt securities	41	83
Amortized cost of debt securities	40	83
Unrealized gains of investments	1	0
Unrealized losses of investments	0	0
Long-term investments \| U.S. corporate
Investments:
Fair value of debt securities	1,241	1,588
Amortized cost of debt securities	1,237	1,580
Unrealized gains of investments	5	9
Unrealized losses of investments	(1)	(1)
Long-term investments \| International corporate
Investments:
Fair value of debt securities	530	624
Amortized cost of debt securities	530	620
Unrealized gains of investments	1	4
Unrealized losses of investments	(1)	0
Long-term investments \| Equity and other securities
Investments:
Carrying value of equity and other securities	236	270
Amortized cost of equity and other securities	236	270
Unrealized gains of investments	0	0
Unrealized losses of investments	$ 0	$ 0

Equity and Other Securities, Carrying Value

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Equity and Other Securities, Cost

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This item represents the cost of debt and equity securities, which are categorized either as available for sale or trading securities, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any.

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Investments at Carrying Value

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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-Name Accounting Standards Codification

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

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This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

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