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Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Nov. 24, 2019	Nov. 25, 2018
Statement of Comprehensive Income [Abstract]
NET INCOME INCLUDING NONCONTROLLING INTERESTS	$ 856	$ 777
Foreign-currency translation adjustment and other, net	125	(134)
Comprehensive income	981	643
Less: Comprehensive income attributable to noncontrolling interests	22	8
COMPREHENSIVE INCOME ATTRIBUTABLE TO COSTCO	$ 959	$ 635

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