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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ 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 FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Share Repurchases (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		34 Months Ended	9 Months Ended
	Apr. 27, 2014	Apr. 28, 2013	Apr. 27, 2014 June 2011 Program [Member]	Apr. 27, 2014 Treasury Stock [Member]	Apr. 28, 2013 Treasury Stock [Member]	Apr. 27, 2014 Treasury Stock [Member] Shares Repurchased To Offset The Impact Of Dilution [Member]	Apr. 28, 2013 Treasury Stock [Member] Shares Repurchased To Offset The Impact Of Dilution [Member]
Statement [Line Items]
Authorized amount for shares repurchase			$ 1,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount			750
Shares repurchased, shares				2	4	2	4
Shares repurchased, value	$ 76	$ 139		$ 76	$ 139