Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018
Net revenue:
Revenues	$ 1,502	$ 1,339	$ 2,518	$ 2,249
Cost of revenue:
Amortization of acquired technology	5	3	10	5
Selling and marketing	548	469	894	777
Research and development	295	286	589	579
General and administrative	140	143	277	288
Amortization of other acquired intangible assets	1	1	3	2
Total costs and expenses	1,269	1,145	2,295	2,090
Operating income	233	194	223	159
Interest expense	(4)	(6)	(8)	(11)
Interest and other income, net	6	5	6	8
Income before income taxes	235	193	221	156
Income tax provision (benefit)	46	10	(2)	(25)
Net income	$ 189	$ 183	$ 223	$ 181
Earnings Per Share, Basic
Basic net income (loss) per share (in dollars per share)	$ 0.73	$ 0.72	$ 0.86	$ 0.71
Shares used in basic per share calculations (in shares)	260	256	260	256
Earnings Per Share, Diluted
Diluted net income (loss) per share (in dollars per share)	$ 0.72	$ 0.70	$ 0.84	$ 0.70
Shares used in diluted per share calculations (in shares)	264	260	264	260
Dividends
Cash dividends declared per common share (in dollars per share)	$ 0.47	$ 0.39	$ 0.94	$ 0.78
Product
Net revenue:
Revenues	$ 533	$ 529	$ 880	$ 899
Cost of revenue:
Cost of revenue	26	27	41	45
Service
Net revenue:
Revenues	969	810	1,638	1,350
Cost of revenue:
Cost of revenue	$ 254	$ 216	$ 481	$ 394