Accrued Stock Repurchase Liability, Current

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
-Publisher FASB
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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, 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
-Publisher FASB
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- Definition

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

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.

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ 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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-Topic 505
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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.

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-Publisher FASB
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Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2017	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016	Jul. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock repurchased (in shares)				3.5	19.1
Common stock repurchased, value				$ 390	$ 1,725
Amounts due for share repurchases		$ 7		$ 7		$ 0
Common stock, dividends, per share, cash paid (in USD per share)				$ 0.68
Payments of dividends				$ 177
Cash dividends declared per common share (in USD per share)		$ 0.34	$ 0.30	$ 0.68	$ 0.60
Allocated share-based compensation expense		$ 81	$ 65	$ 170	$ 132
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested share based compensation expense		62		$ 62
Expected weighted average vesting period to recognize compensation cost related to share based compensation expense, in years				2 years 1 month 6 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested share based compensation expense		476		$ 476
Expected weighted average vesting period to recognize compensation cost related to share based compensation expense, in years				2 years 1 month 6 days
Discontinued Operations, Disposed of by Sale
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense					5
Software and Software Development Costs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized computer software, gross				$ 4	$ 3
Subsequent event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividends declared per common share (in USD per share)	$ 0.34
New Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, remaining authorized repurchase amount		$ 2,000		$ 2,000