Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Oct. 31, 2011	Oct. 31, 2010
Cash flows from operating activities:
Net loss	$ (64)	$ (70)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	44	37
Amortization of acquired intangible assets	28	19
Share-based compensation expense	40	35
Deferred income taxes	(5)	25
Tax benefit from share-based compensation plans	30	32
Excess tax benefit from share-based compensation plans	(29)	(27)
Other	(6)	5
Total adjustments	102	126
Changes in operating assets and liabilities:
Accounts receivable	5	(12)
Prepaid expenses, income taxes receivable and other assets	(78)	(134)
Accounts payable	39	5
Accrued compensation and related liabilities	(74)	(82)
Deferred revenue	(25)	(29)
Income taxes payable	1	(13)
Other liabilities	(16)	(2)
Total changes in operating assets and liabilities	(148)	(267)
Net cash used in operating activities	(110)	(211)
Cash flows from investing activities:
Purchases of available-for-sale debt securities	(197)	(428)
Sales of available-for-sale debt securities	136	638
Maturities of available-for-sale debt securities	41	134
Net change in money market funds and other cash equivalents held to satisfy customer fund obligations	93	(26)
Net change in customer fund deposits	(93)	26
Purchases of property and equipment	(44)	(51)
Acquisitions of intangible assets	0	(3)
Other	14	(5)
Net cash (used in) provided by investing activities	(50)	285
Cash flows from financing activities:
Net proceeds from issuance of treasury stock under stock plans	45	126
Purchases of treasury stock	(255)	(330)
Cash dividends paid to stockholders	(45)	0
Excess tax benefit from share-based compensation plans	29	27
Net cash used in financing activities	(226)	(177)
Effect of exchange rates on cash and cash equivalents	(3)	1
Net decrease in cash and cash equivalents	(389)	(102)
Cash and cash equivalents at beginning of period	722	214
Cash and cash equivalents at end of period	$ 333	$ 112