Condensed Consolidated Statements of Income (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Nov. 25, 2012	Nov. 20, 2011
REVENUE
Net sales	$ 23,204	$ 21,181
Membership fees	511	447
Total revenue	23,715	21,628
OPERATING EXPENSES
Merchandise costs	20,726	18,931
Selling, general and administrative	2,332	2,144
Preopening expenses	18	10
Operating income	639	543
OTHER INCOME (EXPENSE)
Interest expense	(13)	(27)
Interest income and other, net	20	37
INCOME BEFORE INCOME TAXES	646	553
Provision for income taxes	225	225
Net income including noncontrolling interests	421	328
Net income attributable to noncontrolling interests	(5)	(8)
NET INCOME ATTRIBUTABLE TO COSTCO	$ 416	$ 320
NET INCOME PER COMMON SHARE ATTRIBUTABLE TO COSTCO:
Basic	$ 0.96	$ 0.74
Diluted	$ 0.95	$ 0.73
Shares used in calculation (000's)
Basic	433,423	434,222
Diluted	438,643	440,615
CASH DIVIDENDS DECLARED PER COMMON SHARE	$ 0.275	$ 0.240