Number of stock incentive plans.

No definition available.

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- Definition

Reduction in number of shares available for issuance after amendment approved by shareholders.

+ References

No definition available.

+ Details

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- Definition

Stock options and stock appreciation rights exercise price percentage of the fair market value of the underlying stock on the grant date

+ References

No definition available.

+ Details

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

+ Details

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Details

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Employee Benefit Plans (Employee Stock Incentive Plans) (Details)	12 Months Ended
	Jul. 29, 2017 stock_incentive_plan shares	Jul. 30, 2016 shares	Jul. 25, 2015 shares	Jul. 26, 2014 shares	Nov. 12, 2009 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock incentive plans (stock incentive plan) \| stock_incentive_plan	1
Outstanding stock options (in shares)	12,000,000	73,000,000	103,000,000	187,000,000
2005 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding stock options (in shares)	0
2005 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	694,000,000
Reduction in number of shares available for issuance after amendment (in shares)					1.5
Exercise price as a percentage of market value for Options	100.00%
Award requisite service period	3 years
2005 Plan \| Stock awards subsequent to November 12, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reduction in number of shares available for issuance after amendment (in shares)					1.5
2005 Plan \| Stock awards subsequent to November 12, 2009 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period for stock options and stock appreciation rights	10 years
2005 Plan \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
2005 Plan \| Employee Stock Option [Member] \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	20.00%
Award requisite service period	48 months
2005 Plan \| Employee Stock Option [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25.00%
Award requisite service period	36 months
2005 Plan \| Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	20.00%
2005 Plan \| Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25.00%
2005 Plan \| Performance base and Market base RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period	3 years
2005 Plan \| Performance based RSU based on financial or nonfinancial operating goals \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period	6 months
2005 Plan \| Performance based RSU based on financial or nonfinancial operating goals \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period	3 years