No authoritative reference available.

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Award Vested By Year One

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No definition available.

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Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Award Vested By Year Three

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No definition available.

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Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Award Vested By Year Two

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No definition available.

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Percentage Recipients Received Based On Performance

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

+ References

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from equity-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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-Topic 718

-SubTopic 20

-Section 55

-Paragraph 24

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

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

-Publisher FASB

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-Topic 718

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-Topic 230

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-Section 45

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Description of the period of time over 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, which may be expressed in a variety of ways (for example, in years, month and year).

+ References

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

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-Publisher FASB

-Name Accounting Standards Codification

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(a)

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The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

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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).

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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Stock-Based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended				12 Months Ended			12 Months Ended		0 Months Ended	12 Months Ended			3 Months Ended		12 Months Ended					12 Months Ended
	Jul. 29, 2012	Jul. 31, 2011	Aug. 01, 2010	Nov. 01, 2003 2003 And Previous Long-Term Plan [Member]	Jul. 29, 2012 2003 Long-Term Incentive Plan [Member]	Nov. 01, 2003 2003 Long-Term Incentive Plan [Member]	Nov. 01, 2003 Previous Long-Term Plan [Member]	Jul. 29, 2012 2005 Long-Term Incentive Plan [Member]	Nov. 18, 2005 2005 Long-Term Incentive Plan [Member]	Jul. 01, 2011 Special Retention Time-Lapse Restricted Stock Units [Member]	Jul. 29, 2012 Time Lapse, EPS And Strategic Performance Restricted Stock Units [Member] years	Jul. 31, 2011 Time Lapse, EPS And Strategic Performance Restricted Stock Units [Member]	Aug. 01, 2010 Time Lapse, EPS And Strategic Performance Restricted Stock Units [Member]	Oct. 28, 2012 TSR Performance Restricted Stock/Units [Member]	Oct. 30, 2011 TSR Performance Restricted Stock/Units [Member]	Jul. 29, 2012 TSR Performance Restricted Stock/Units [Member] years	Jul. 31, 2011 TSR Performance Restricted Stock/Units [Member]	Aug. 01, 2010 TSR Performance Restricted Stock/Units [Member]	Jul. 29, 2012 EPS Performance Restricted Stock Units [Member]	Jul. 29, 2012 Strategic Performance Restricted Stock Units [Member]	Jul. 29, 2012 Minimum [Member] TSR Performance Restricted Stock/Units [Member]	Jul. 29, 2012 Minimum [Member] EPS Performance Restricted Stock Units [Member]	Jul. 29, 2012 Minimum [Member] Strategic Performance Restricted Stock Units [Member]	Jul. 29, 2012 Maximum [Member] TSR Performance Restricted Stock/Units [Member]	Jul. 29, 2012 Maximum [Member] EPS Performance Restricted Stock Units [Member]	Jul. 29, 2012 Maximum [Member] Strategic Performance Restricted Stock Units [Member]
Stock-Based Compensation
Shares authorized for issuance in incentive plans				31,200,000		28,000,000	3,200,000		6,000,000
Options, percent vested, year one					30.00%			30.00%
Options, percent vested, year two					60.00%			60.00%
Options, percent vested, year three					100.00%			100.00%
Percentage of performance-based grant potentially earned																					0.00%	0.00%	0.00%	225.00%	100.00%	200.00%
Pre-tax stock-based compensation expense	$ 79	$ 87	$ 88
Tax-related benefits	29	32	33
Total intrinsic value of options exercised	31	29	33
Nonvested, Units											3,951,000	2,710,000				2,143,000	3,431,000		300,000	1,280,000
Nonvested, Weighted-Average Grant-Date Fair Value											$ 33.19	$ 35.11				$ 37.94	$ 40.78		$ 33.56	$ 32.37
Granted, Units										400,000	2,639,000					0
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period										two-year
Granted, Weighted-Average Grant-Date Fair Value										$ 34.65	$ 32.38	$ 35.64	$ 32.25			$ 0	$ 43.18	$ 33.84
Remaining unearned compensation on nonvested awards											48					17
Weighted-average remaining service period, years											1.5					1.0
Fair value of restricted units and shares vested											38	40	32				38	31
Percentage recipients received based on performance														0.00%	0.00%
Excess tax benefits on the exercise of stock options and vested restricted stock	8	11	11
Cash received from the exercise of stock options	$ 112	$ 96	$ 139