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Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Aug. 29, 2021	Aug. 30, 2020	Sep. 01, 2019
Statement of Comprehensive Income [Abstract]
NET INCOME INCLUDING NONCONTROLLING INTERESTS	$ 5,079	$ 4,059	$ 3,704
Foreign-currency translation adjustment and other, net	181	162	(245)
Comprehensive income	5,260	4,221	3,459
Less: Comprehensive income attributable to noncontrolling interests	93	80	37
COMPREHENSIVE INCOME ATTRIBUTABLE TO COSTCO	$ 5,167	$ 4,141	$ 3,422

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