Net Income per Common and Common Equivalent Share Net Income per Common and Common Equivalent Share (Tables)

12 Months Ended

Sep. 02, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table shows the amounts used in computing net income per share and the weighted average number of shares of potentially dilutive common shares outstanding (shares in 000’s):

	2018		2017		2016
Net income attributable to Costco	$	3,134	$	2,679	$	2,350
Weighted average number of common shares used in basic net income per common share	438,515		438,437		438,585
RSUs and other	3,319		2,500		2,678
Weighted average number of common shares and dilutive potential of common stock used in diluted net income per share	441,834		440,937		441,263