Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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- Definition

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

+ Details

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- Definition

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

+ Details

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- Definition

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

+ Details

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ 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

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

+ Details

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

+ Details

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Stock-based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 30, 2016	Nov. 01, 2015	Apr. 30, 2017	May 01, 2016	Jul. 31, 2016
Stock-based Compensation
Cash received from the exercise of stock options			$ 2	$ 2
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value				2
Excess Tax Benefit from Share-based Compensation, Operating Activities			6	7
Employee Stock Option [Member]
Stock-based Compensation
Remaining unearned compensation on nonvested awards			$ 2
Weighted-average remaining service period, years			1 year 7 months
EPS Performance Restricted Stock Units [Member]
Stock-based Compensation
Nonvested, Units			155
Nonvested, Weighted-Average Grant-Date Fair Value			$ 49.89
Strategic Performance Restricted Stock Units [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	35.00%
Time Lapse EPS, Strategic Performance and Special Performance Restricted Stock Units [Member]
Stock-based Compensation
Remaining unearned compensation on nonvested awards			$ 27
Weighted-average remaining service period, years			1 year 8 months
Nonvested, Units			1,258		2,004
Nonvested, Weighted-Average Grant-Date Fair Value			$ 50.75		$ 45.08
Fair value of restricted units and shares vested			$ 53	$ 43
Granted, Weighted-Average Grant-Date Fair Value			$ 54.78	$ 50.28
TSR Performance Restricted Stock/Units [Member]
Stock-based Compensation
Remaining unearned compensation on nonvested awards			$ 34
Weighted-average remaining service period, years			1 year 9 months
Nonvested, Units			1,813		1,641
Nonvested, Weighted-Average Grant-Date Fair Value			$ 48.24		$ 49.13
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	75.00%	100.00%
Fair value of restricted units and shares vested			$ 14	$ 22
Granted, Weighted-Average Grant-Date Fair Value			$ 39.53	$ 62.44
Minimum [Member] \| EPS Performance Restricted Stock Units [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			0.00%
Maximum [Member] \| EPS Performance Restricted Stock Units [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage			100.00%
Financial [Member] \| Special Performance Restricted Stock Units [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	0.00%
Milestones [Member] \| Special Performance Restricted Stock Units [Member]
Stock-based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100.00%