Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Cash flows from operating activities:
Net loss	$ (17)	$ (30)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	60	49
Amortization of acquired intangible assets	5	6
Share-based compensation expense	97	89
Deferred income taxes	(11)	(9)
Other	2	1
Total adjustments	153	136
Changes in operating assets and liabilities:
Accounts receivable	(14)	(14)
Income taxes receivable	2	(38)
Prepaid expenses and other assets	(25)	(50)
Accounts payable	61	(2)
Accrued compensation and related liabilities	(147)	(148)
Deferred revenue	(99)	(67)
Other liabilities	8	8
Total changes in operating assets and liabilities	(214)	(311)
Net cash used in operating activities	(78)	(205)
Cash flows from investing activities:
Purchases of corporate and customer fund investments	(86)	(125)
Sales of corporate and customer fund investments	38	298
Maturities of corporate and customer fund investments	46	22
Net change in cash and cash equivalents held to satisfy customer fund obligations	53	(22)
Net change in customer fund deposits	(53)	22
Purchases of property and equipment	(50)	(86)
Other	(23)	(11)
Net cash provided by (used in) investing activities	(75)	98
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facility	400	100
Repayment of debt	(13)	0
Proceeds from issuance of stock under employee stock plans	83	43
Payments for employee taxes withheld upon vesting of restricted stock units	(39)	(45)
Cash paid for purchases of treasury stock	(168)	(175)
Dividends and dividend rights paid	(105)	(89)
Net cash provided by (used in) financing activities	158	(166)
Effect of exchange rates on cash and cash equivalents	(5)	(5)
Net decrease in cash and cash equivalents	0	(278)
Cash and cash equivalents at beginning of period	529	638
Cash and cash equivalents at end of period	$ 529	$ 360