Segment Information, Reconciliation (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Aug. 02, 2013	Aug. 03, 2012	Aug. 02, 2013	Aug. 03, 2012
Segment Reporting, Revenue Reconciling Items
Revenues	$ 14,514	$ 14,483	$ 28,588	$ 28,905
Operating income	272	901	498	1,725
Amortization of intangible assets	(196)	(150)	(392)	(260)
Segments
Segment Reporting, Revenue Reconciling Items
Revenues	14,909	14,849	29,326	29,608
Operating income	619	1,172	1,264	2,222
Internal revenue
Segment Reporting, Revenue Reconciling Items
Revenues	395	366	738	703
Significant reconciling items
Segment Reporting, Revenue Reconciling Items
Unallocated corporate expenses	(17)	(49)	(72)	(89)
Amortization of intangible assets	(196)	(150)	(392)	(260)
Severance and facility actions and acquisition-related costs	(87)	(72)	(167)	(148)
Other	$ (47)	$ 0	$ (135)	$ 0

Other items to reconcile total segment operating income to consolidated operating income

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- Definition

Amount charged against earnings in the period for incurred and estimated costs for severance and facility action costs. Additionally, this element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include cash compensation payments, retention payments, integration costs, bankers' fees, legal fees, consulting fees, and other costs that are directly attributable to acquisitions.

+ References

No definition available.

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- Definition

Unallocated corporate expenses

+ References

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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