Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
Jan. 31, 2015	Jan. 31, 2014
Cash flows from operating activities:
Net loss	$ (150)us-gaap_NetIncomeLoss	$ (48)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	75us-gaap_Depreciation	75us-gaap_Depreciation
Amortization of acquired intangible assets	36us-gaap_AdjustmentForAmortization	25us-gaap_AdjustmentForAmortization
Share-based compensation expense	122us-gaap_ShareBasedCompensation	99us-gaap_ShareBasedCompensation
Pre-tax gain on sale of discontinued operations	0	(40)
Deferred income taxes	(16)us-gaap_DeferredIncomeTaxExpenseBenefit	66us-gaap_DeferredIncomeTaxExpenseBenefit
Tax benefit from share-based compensation plans	38	43
Excess tax benefit from share-based compensation plans	(38)	(43)
Other	19us-gaap_OtherNoncashIncomeExpense	11us-gaap_OtherNoncashIncomeExpense
Total adjustments	236	236
Changes in operating assets and liabilities:
Accounts receivable	(327)	(308)
Income taxes receivable	(110)	(161)
Prepaid expenses and other assets	12	(29)
Accounts payable	116	88
Accrued compensation and related liabilities	(79)	(49)
Deferred revenue	439	326
Other liabilities	110	87
Total changes in operating assets and liabilities	161	(46)
Net cash provided by operating activities	247	142
Cash flows from investing activities:
Purchases of available-for-sale debt securities	(619)	(320)
Sales of available-for-sale debt securities	458	145
Maturities of available-for-sale debt securities	328	147
Net change in money market funds and other cash equivalents held to satisfy customer fund obligations	(65)	(55)
Net change in customer fund deposits	65	55
Purchases of property and equipment	(116)	(93)
Acquisitions of businesses, net of cash acquired	(76)	(66)
Proceeds from divestiture of businesses	0	1,025
Other	(10)	(10)
Net cash provided by (used in) investing activities	(35)	828
Cash flows from financing activities:
Net proceeds from issuance of stock under employee stock plans	101	125
Cash paid for purchases of treasury stock	(554)	(1,402)
Dividends and dividend rights paid	(143)us-gaap_PaymentsOfDividends	(111)us-gaap_PaymentsOfDividends
Excess tax benefit from share-based compensation plans	38	43
Net cash used in financing activities	(558)	(1,345)
Effect of exchange rates on cash and cash equivalents	(21)	(9)
Net decrease in cash and cash equivalents	(367)	(384)
Cash and cash equivalents at beginning of period	849	1,009
Cash and cash equivalents at end of period	$ 482	$ 625

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-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. 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

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

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- Definition

The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a),(b)

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- Definition

The cash inflow associated with the sale of debt securities classified as available-for-sale securities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 320

-SubTopic 10

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-Paragraph 11

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-Publisher FASB

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-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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