Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Cash flows from operating activities:
Net loss	$ (17)	$ (7)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	101	94
Amortization of acquired intangible assets	11	19
Share-based compensation expense	170	137
Deferred income taxes	(31)	(11)
Tax benefit from share-based compensation plans	0	20
Other	7	10
Total adjustments	258	269
Changes in operating assets and liabilities:
Accounts receivable	(413)	(431)
Income taxes receivable	(21)	(26)
Prepaid expenses and other assets	(58)	(18)
Accounts payable	93	103
Accrued compensation and related liabilities	(83)	(100)
Deferred revenue	250	296
Other liabilities	78	43
Total changes in operating assets and liabilities	(154)	(133)
Net cash provided by operating activities	87	129
Cash flows from investing activities:
Purchases of corporate and customer fund investments	(201)	(181)
Sales of corporate and customer fund investments	316	942
Maturities of corporate and customer fund investments	79	126
Net change in cash and cash equivalents held to satisfy customer fund obligations	(20)	(35)
Net change in customer fund deposits	20	35
Purchases of property and equipment	(132)	(394)
Other	(19)	0
Net cash provided by investing activities	43	493
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facilities	150	745
Proceeds from issuance of stock under employee stock plans	86	85
Payments for employee taxes withheld upon vesting of restricted stock units	(51)	(29)
Cash paid for purchases of treasury stock	(383)	(1,725)
Dividends and dividend rights paid	(177)	(161)
Net cash used in financing activities	(375)	(1,085)
Effect of exchange rates on cash and cash equivalents	(1)	(11)
Net decrease in cash and cash equivalents	(246)	(474)
Cash and cash equivalents at beginning of period	638	808
Cash and cash equivalents at end of period	$ 392	$ 334