Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 31, 2010
NET SALES:
Product	$ 36,326	$ 34,526	$ 32,420
Service	9,735	8,692	7,620
Total net sales	46,061	43,218	40,040
COST OF SALES:
Product	14,505	13,647	11,620
Service	3,347	3,035	2,777
Total cost of sales	17,852	16,682	14,397
GROSS MARGIN	28,209	26,536	25,643
OPERATING EXPENSES:
Research and development	5,488	5,823	5,273
Sales and marketing	9,647	9,812	8,782
General and administrative	2,322	1,908	1,933
Amortization of purchased intangible assets	383	520	491
Restructuring And Other Charges	304	799
Total operating expenses	18,144	18,862	16,479
OPERATING INCOME	10,065	7,674	9,164
Interest income	650	641	635
Interest expense	(596)	(628)	(623)
Other income, net	40	138	239
Interest and other income, net	94	151	251
INCOME BEFORE PROVISION FOR INCOME TAXES	10,159	7,825	9,415
Provision for income taxes	2,118	1,335	1,648
NET INCOME	$ 8,041	$ 6,490	$ 7,767
Net income per share
Basic	$ 1.50	$ 1.17	$ 1.36
Diluted	$ 1.49	$ 1.17	$ 1.33
Shares used in per-share calculation
Basic	5,370	5,529	5,732
Diluted	5,404	5,563	5,848
Cash dividends declared per common share	$ 0.28	$ 0.12