CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 06, 2012	May 08, 2011	May 06, 2012	May 08, 2011
REVENUE
Net sales	$ 21,849	$ 20,188	$ 65,538	$ 59,460
Membership fees	475	435	1,381	1,277
Total revenue	22,324	20,623	66,919	60,737
OPERATING EXPENSES
Merchandise costs	19,543	18,067	58,613	53,059
Selling, general and administrative	2,151	1,991	6,472	5,970
Preopening expenses	6	8	22	24
Provision for impaired assets, closing costs and other, net	1	1	2	7
Operating income	623	556	1,810	1,677
OTHER INCOME (EXPENSE)
Interest expense	(19)	(27)	(73)	(80)
Interest income and other, net	18	5	65	14
INCOME BEFORE INCOME TAXES	622	534	1,802	1,611
Provision for income taxes	217	193	657	569
Net income including noncontrolling interests	405	341	1,145	1,042
Net income attributable to noncontrolling interests	(19)	(17)	(45)	(58)
NET INCOME ATTRIBUTABLE TO COSTCO	$ 386	$ 324	$ 1,100	$ 984
NET INCOME PER COMMON SHARE ATTRIBUTABLE TO COSTCO:
Basic	$ 0.89	$ 0.74	$ 2.53	$ 2.26
Diluted	$ 0.88	$ 0.73	$ 2.50	$ 2.22
Shares used in calculation (000's)
Basic	433,791	436,977	434,180	435,913
Diluted	439,166	443,570	439,748	442,727
CASH DIVIDENDS DECLARED PER COMMON SHARE	$ 0.000	$ 0.240	$ 0.480	$ 0.650