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Net Income per Common and Common Equivalent Share | 6 Months Ended
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Feb. 17, 2019
Earnings Per Share [Abstract] |
Net Income Per Common and Common Equivalent Share | Note 8—Net Income per Common and Common Equivalent Share 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):
| 12 Weeks Ended |  | 24 Weeks Ended
| February 17, 2019 |  | February 18, 2018 |  | February 17, 2019 |  | February 18, 2018
Net income attributable to Costco | $ | 889 |  |  | $ | 701 |  |  | $ | 1,656 |  |  | $ | 1,341 |
Weighted average number of common shares used in basic net income per common share | 440,284 |  |  | 439,022 |  |  | 439,721 |  |  | 438,494 |
RSUs | 2,053 |  |  | 2,546 |  |  | 2,814 |  |  | 2,707 |
Weighted average number of common shares and dilutive potential of common stock used in diluted net income per share | 442,337 |  |  | 441,568 |  |  | 442,535 |  |  | 441,201 |
Anti-dilutive RSUs | 1,667 |  |  | — |  |  | — |  |  | — |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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