Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 28, 2012	Apr. 30, 2011	Apr. 28, 2012	Apr. 30, 2011
NET SALES:
Product	$ 9,106	$ 8,669	$ 27,176	$ 25,605
Service	2,482	2,197	7,195	6,418
Total net sales	11,588	10,866	34,371	32,023
COST OF SALES:
Product	3,563	3,437	10,776	10,068
Service	856	770	2,471	2,280
Total cost of sales	4,419	4,207	13,247	12,348
GROSS MARGIN	7,169	6,659	21,124	19,675
OPERATING EXPENSES:
Research and development	1,358	1,430	4,072	4,339
Sales and marketing	2,383	2,446	7,230	7,292
General and administrative	562	466	1,611	1,376
Amortization of purchased intangible assets	96	103	292	419
Restructuring and other charges	20	31	225	31
Total operating expenses	4,419	4,476	13,430	13,457
OPERATING INCOME	2,750	2,183	7,694	6,218
Interest income	161	161	483	477
Interest expense	(151)	(153)	(449)	(480)
Other income, net	19	12	45	143
Interest and other income, net	29	20	79	140
INCOME BEFORE PROVISION FOR INCOME TAXES	2,779	2,203	7,773	6,358
Provision for income taxes	614	396	1,649	1,100
NET INCOME	$ 2,165	$ 1,807	$ 6,124	$ 5,258
Net income per share:
Basic	$ 0.40	$ 0.33	$ 1.14	$ 0.95
Diluted	$ 0.40	$ 0.33	$ 1.13	$ 0.94
Shares used in per-share calculation:
Basic	5,388	5,508	5,383	5,545
Diluted	5,456	5,537	5,418	5,596
Cash dividends declared per common share	$ 0.08	$ 0.06	$ 0.20	$ 0.06