Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 27, 2013	Apr. 28, 2012	Apr. 27, 2013	Apr. 28, 2012
NET SALES:
Product	$ 9,559	$ 9,106	$ 28,293	$ 27,176
Service	2,657	2,482	7,897	7,195
Total net sales	12,216	11,588	36,190	34,371
COST OF SALES:
Product	3,782	3,563	11,387	10,776
Service	923	856	2,710	2,471
Total cost of sales	4,705	4,419	14,097	13,247
GROSS MARGIN	7,511	7,169	22,093	21,124
OPERATING EXPENSES:
Research and development	1,542	1,358	4,425	4,072
Sales and marketing	2,375	2,383	7,178	7,230
General and administrative	530	562	1,674	1,611
Amortization of purchased intangible assets	89	96	329	292
Restructuring and other charges	33	20	105	225
Total operating expenses	4,569	4,419	13,711	13,430
OPERATING INCOME	2,942	2,750	8,382	7,694
Interest income	162	161	483	483
Interest expense	(145)	(151)	(440)	(449)
Other income (loss), net	(14)	19	(69)	45
Interest and other income, net	3	29	(26)	79
INCOME BEFORE PROVISION FOR INCOME TAXES	2,945	2,779	8,356	7,773
Provision for income taxes	467	614	643	1,649
NET INCOME	$ 2,478	$ 2,165	$ 7,713	$ 6,124
Net income per share-basic (in dollars per share)	$ 0.47	$ 0.40	$ 1.45	$ 1.14
Net income per share-diluted (in dollars per share)	$ 0.46	$ 0.40	$ 1.44	$ 1.13
Shares used in per-share calculation-basic (in shares)	5,329	5,388	5,316	5,383
Shares used in per-share calculation-diluted (in shares)	5,387	5,456	5,361	5,418
Cash dividends declared per common share (in dollars per share)	$ 0.17	$ 0.08	$ 0.45	$ 0.20