Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		8 Months Ended
	May 12, 2019	May 13, 2018	May 12, 2019	May 13, 2018
REVENUE
Total Revenue	$ 34,740	$ 32,361	$ 105,205	$ 97,165
OPERATING EXPENSES
Merchandise costs	30,233	28,131	91,576	84,481
Selling, general and administrative	3,371	3,155	10,310	9,613
Preopening expenses	14	8	45	37
Operating income	1,122	1,067	3,274	3,034
OTHER INCOME (EXPENSE)
Interest expense	(35)	(37)	(105)	(111)
Interest income and other, net	36	41	104	70
INCOME BEFORE INCOME TAXES	1,123	1,071	3,273	2,993
Provision for income taxes	207	309	679	867
Net income including noncontrolling interests	916	762	2,594	2,126
Net income attributable to noncontrolling interests	(10)	(12)	(32)	(35)
NET INCOME ATTRIBUTABLE TO COSTCO	$ 906	$ 750	$ 2,562	$ 2,091
NET INCOME PER COMMON SHARE ATTRIBUTABLE TO COSTCO:
Basic (in dollars per share)	$ 2.06	$ 1.71	$ 5.83	$ 4.77
Diluted (in dollars per share)	$ 2.05	$ 1.70	$ 5.79	$ 4.74
Shares used in calculation (000's)
Basic (shares)	439,859	438,740	439,767	438,576
Diluted (shares)	442,642	441,715	442,565	441,383
Net sales
REVENUE
Total Revenue	$ 33,964	$ 31,624	$ 102,903	$ 95,020
Membership fees
REVENUE
Total Revenue	$ 776	$ 737	$ 2,302	$ 2,145