Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Net revenue:
Total net revenue	$ 7,679	$ 6,784	$ 6,025
Cost of revenue:
Amortization of acquired technology	22	20	15
Selling and marketing	2,048	1,927	1,631
Research and development	1,392	1,233	1,186
General and administrative	679	597	664
Amortization of other acquired intangible assets	6	6	6
Total costs and expenses	5,503	4,930	4,465
Operating income	2,176	1,854	1,560
Interest expense	(14)	(15)	(20)
Interest and other income, net	36	42	26
Income before income taxes	2,198	1,881	1,566
Income tax provision	372	324	237
Net income	$ 1,826	$ 1,557	$ 1,329
Basic net income per share (in dollars per share)	$ 6.99	$ 5.99	$ 5.18
Shares used in basic per share calculations (in shares)	261	260	256
Diluted net income per share (in dollars per share)	$ 6.92	$ 5.89	$ 5.09
Shares used in diluted per share calculations (in shares)	264	264	261
Cash dividends declared per common share (in dollars per share)	$ 2.12	$ 1.88	$ 1.56
Product
Net revenue:
Total net revenue	$ 1,635	$ 1,623	$ 1,624
Cost of revenue:
Cost of revenue	72	77	82
Service and other
Net revenue:
Total net revenue	6,044	5,161	4,401
Cost of revenue:
Cost of revenue	$ 1,284	$ 1,070	$ 881