Repurchase of Common Stock (Details) (USD $) Share data in Millions, unless otherwise specified	1 Months Ended	3 Months Ended	6 Months Ended
Jun. 30, 2011	Aug. 03, 2013	Aug. 04, 2012	Aug. 04, 2012
Repurchase of Common Stock [Abstract]
Share repurchase program, authorized amount	$ 5,000,000,000
Stock Repurchased and Retired During Period, Shares			6.3	10.9
Stock Repurchased and Retired During Period, Value			122,000,000	237,000,000
Amount remained available for future repurchases		$ 4,000,000,000

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Number of shares that have been repurchased and retired during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

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- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

+ Details

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- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

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- Definition

Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

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