Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Cash flows from operating activities:
Net income		$ 1,211	$ 971	$ 979
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		228	214	195
Amortization of acquired intangible assets		25	22	43
Share-based compensation expense		382	326	281
Pre-tax gain on sale of discontinued operations	[1]	0	0	(354)
Loss on sale of long-lived assets		79	0	0
Deferred income taxes		51	8	70
Tax benefit from share-based compensation plans		0	0	59
Other		6	13	17
Total adjustments		771	583	311
Changes in operating assets and liabilities:
Accounts receivable		5	5	(20)
Income taxes receivable		(1)	(44)	64
Prepaid expenses and other assets		(31)	(9)	(10)
Accounts payable		12	0	(23)
Accrued compensation and related liabilities		75	10	(11)
Deferred revenue		66	83	192
Other liabilities		4	0	(22)
Total changes in operating assets and liabilities		130	45	170
Net cash provided by operating activities		2,112	1,599	1,460
Cash flows from investing activities:
Purchases of corporate and customer fund investments		(407)	(352)	(934)
Sales of corporate and customer fund investments		128	359	1,165
Maturities of corporate and customer fund investments		286	183	187
Net change in cash and cash equivalents held to satisfy customer fund obligations		5	(68)	58
Net change in customer fund deposits		(5)	68	(33)
Purchases of property and equipment		(38)	(102)	(416)
Capitalization of internal use software		(86)	(128)	(106)
Acquisitions of businesses, net of cash acquired		(363)	0	0
Proceeds from divestiture of businesses		0	0	463
Originations of term loans to small businesses		(137)	0	0
Principal repayments of term loans from small businesses		82	0	0
Other		3	(45)	(13)
Net cash provided by (used in) investing activities		(532)	(85)	371
Cash flows from financing activities:
Proceeds from borrowings under revolving credit facilities		800	150	995
Repayments on borrowings under revolving credit facilities		(800)	(150)	(995)
Proceeds from long-term debt		0	0	500
Repayment of debt		(50)	(512)	0
Proceeds from issuance of stock under employee stock plans		295	226	197
Payments for employee taxes withheld upon vesting of restricted stock units		(199)	(153)	(108)
Cash paid for purchases of treasury stock		(272)	(839)	(2,264)
Dividends and dividend rights paid		(407)	(353)	(318)
Other		(1)	(1)	(6)
Net cash used in financing activities		(634)	(1,632)	(1,999)
Effect of exchange rates on cash and cash equivalents		(11)	9	(2)
Net increase (decrease) in cash and cash equivalents		935	(109)	(170)
Cash and cash equivalents at beginning of period		529	638	808
Cash and cash equivalents at end of period		1,464	529	638
Supplemental disclosure of cash flow information:
Interest paid		19	42	37
Income taxes paid		$ 245	$ 430	$ 389

[1] Because the cash flows of our discontinued operations were not material for any period presented, we have not segregated the cash flows of those businesses on these statements of cash flows. We have presented the effect of the pre-tax gains on the disposals on these statements of cash flows. See Note 7, “Discontinued Operations,” for more information.