Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
Cash flows from operating activities:
Net loss	$ (30)	$ (31)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	49	45
Amortization of acquired intangible assets	6	10
Share-based compensation expense	89	69
Deferred income taxes	(9)	(2)
Tax benefit from share-based compensation plans	0	9
Other	1	10
Total adjustments	136	141
Changes in operating assets and liabilities:
Accounts receivable	(14)	(28)
Income taxes receivable	(38)	(17)
Prepaid expenses and other assets	(50)	(29)
Accounts payable	(2)	(6)
Accrued compensation and related liabilities	(148)	(145)
Deferred revenue	(67)	(54)
Other liabilities	8	(19)
Total changes in operating assets and liabilities	(311)	(298)
Net cash used in operating activities	(205)	(188)
Cash flows from investing activities:
Purchases of corporate and customer fund investments	(125)	(117)
Sales of corporate and customer fund investments	298	940
Maturities of corporate and customer fund investments	22	64
Net change in cash and cash equivalents held to satisfy customer fund obligations	(22)	(10)
Net change in customer fund deposits	22	10
Purchases of property and equipment	(86)	(70)
Other	(11)	(1)
Net cash provided by investing activities	98	816
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facilities	100	350
Proceeds from issuance of stock under employee stock plans	43	47
Payments for employee taxes withheld upon vesting of restricted stock units	(45)	(23)
Cash paid for purchases of treasury stock	(175)	(1,253)
Dividends and dividend rights paid	(89)	(82)
Net cash used in financing activities	(166)	(961)
Effect of exchange rates on cash and cash equivalents	(5)	(1)
Net decrease in cash and cash equivalents	(278)	(334)
Cash and cash equivalents at beginning of period	638	808
Cash and cash equivalents at end of period	$ 360	$ 474