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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Sep. 01, 2024 | Sep. 03, 2023 | Aug. 28, 2022 | Aug. 29, 2021
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table |
Year |  | Summary Compensation Table Total for PEO($)1 |  | Summary Compensation Table Total for Former PEO($)1 |  | Compensation Actually Paid to PEO($)1,2 |  | Compensation Actually Paid to Former PEO($)1,2 |  | Average Summary Compensation Table Total for Non-PEO NEOs($)1 |  | Average Compensation Actually Paid to Non-PEO NEOs($)1,2 |  | Value of Initial Fixed $100 Investment Based On: |  | Net Income($)5 (in millions) |  | Net Sales Adjusted for Changes in Foreign Currencies($)6 (in millions)
TSR($)3 | Peer Group TSR($)4
2024 |  | 12,229,741 |  | 16,049,870 |  | 18,702,319 |  | 29,445,370 |  | 8,381,978 |  | 11,133,897 |  | 276.32 | 154.78 |  | 7,367 |  | 250,099
2023 |  | — |  | 16,870,623 |  | — |  | 18,733,773 |  | 6,304,715 |  | 6,926,922 |  | 163.78 | 129.00 |  | 6,292 |  | 241,194
2022 |  | — |  | 9,905,070 |  | — |  | 11,868,875 |  | 5,806,023 |  | 6,353,825 |  | 158.84 | 128.26 |  | 5,844 |  | 224,492
2021 |  | — |  | 8,804,752 |  | — |  | 10,342,108 |  | 4,724,776 |  | 5,794,960 |  | 133.65 | 184.84 |  | 5,007 |  | 189,293
_______________________ (1) The principal executive officer(s) (PEOs), Former PEO and Non-PEO named executive officers (Non-PEO NEOs) for each year were as follows:
Year |  | PEO |  | Former PEO |  | Non-PEO NEOs
2024 |  | Ron M. Vachris |  | W. Craig Jelinek |  | Gary Millerchip, Richard A. Galanti, Russ D. Miller, Pierre Riel, Javier Polit
2023 |  | W. Craig Jelinek |  |  |  | Ron M. Vachris, Richard A. Galanti, Russ D. Miller, Pierre Riel
2022 |  | W. Craig Jelinek |  |  |  | Ron M. Vachris, Richard A. Galanti, Russ D. Miller, James P. Murphy
2021 |  | W. Craig Jelinek |  |  |  | Ron M. Vachris, Richard A. Galanti, James P. Murphy, Joseph P. Portera
(2) The dollar amounts represent the amount of "compensation actually paid" or "CAP" as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned or paid to the PEO or Non-PEO NEOs during the applicable year. The following table represents the adjustments made to the Summary Compensation Table (SCT) total compensation for fiscal 2024 to calculate the compensation actually paid. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of the grant.
|  | PEO($) |  | Former PEO($) |  | Average for Non-PEO NEOs($)
SCT Total |  | 12,229,741 |  | 16,049,870 |  | 8,381,978
Deduct, amounts reported under "stock awards" column in the SCT Table |  | (10,592,029) |  | (14,620,472) |  | (5,918,557)
Add, fair value at vesting date of stock awards granted and vested in the current fiscal year |  | — |  | 19,711,035 |  | —
Add, fair value at fiscal year end of outstanding and unvested stock awards granted in the current fiscal year |  | 16,887,329 |  | — |  | 8,607,305
Add, change in fair value of outstanding and unvested stock awards granted in prior fiscal years |  | — |  | — |  | —
Add, change in fair value as of vesting date (from the end of the prior fiscal year) for stock awards granted in any prior fiscal year for which vesting conditions were satisfied during the fiscal year |  | 177,278 |  | 8,304,937 |  | 63,171
Compensation Actually Paid |  | 18,702,319 |  | 29,445,370 |  | 11,133,897
(3) The Total Shareholder Return (TSR) represents the cumulative total return on an initial fixed investment of $100 invested in the Company's common stock from the last day of trading in fiscal 2020 to the last day of trading in each of the applicable fiscal years. The return assumes reinvestment of dividends. (4) The Peer Group TSR represents the S&P Retail Select Index, the index we use in the stock performance graph required by Item 201(e) of Regulation S-K, included in our fiscal year 2024 Form 10-K, filed with the SEC on October 9, 2024. (5) Represents net income reflected in the Company's audited financial statements. (6) Represents net sales adjusted for changes in foreign currencies. This selected measure is used as a performance condition for certain annual performance-based awards for both the PEO and Non-PEO NEOs. Please refer to Appendix A: Non-GAAP Financial Measures for a reconciliation of net sales adjusted for changes in foreign currencies, which is a non-GAAP measure, to net sales under GAAP. |  |  |
Company Selected Measure Name | Net Sales Adjusted for Changes in Foreign Currencies |  |  |
Named Executive Officers, Footnote | The principal executive officer(s) (PEOs), Former PEO and Non-PEO named executive officers (Non-PEO NEOs) for each year were as follows:
Year |  | PEO |  | Former PEO |  | Non-PEO NEOs
2024 |  | Ron M. Vachris |  | W. Craig Jelinek |  | Gary Millerchip, Richard A. Galanti, Russ D. Miller, Pierre Riel, Javier Polit
2023 |  | W. Craig Jelinek |  |  |  | Ron M. Vachris, Richard A. Galanti, Russ D. Miller, Pierre Riel
2022 |  | W. Craig Jelinek |  |  |  | Ron M. Vachris, Richard A. Galanti, Russ D. Miller, James P. Murphy
2021 |  | W. Craig Jelinek |  |  |  | Ron M. Vachris, Richard A. Galanti, James P. Murphy, Joseph P. Portera
Peer Group Issuers, Footnote | (4) The Peer Group TSR represents the S&P Retail Select Index, the index we use in the stock performance graph required by Item 201(e) of Regulation S-K, included in our fiscal year 2024 Form 10-K, filed with the SEC on October 9, 2024. |  |  |
PEO Total Compensation Amount | $ 12,229,741 | $ 16,870,623 | $ 9,905,070 | $ 8,804,752
PEO Actually Paid Compensation Amount | $ 18,702,319 | 18,733,773 | 11,868,875 | 10,342,108
Adjustment To PEO Compensation, Footnote | (2) The dollar amounts represent the amount of "compensation actually paid" or "CAP" as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned or paid to the PEO or Non-PEO NEOs during the applicable year. The following table represents the adjustments made to the Summary Compensation Table (SCT) total compensation for fiscal 2024 to calculate the compensation actually paid. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of the grant.
|  | PEO($) |  | Former PEO($) |  | Average for Non-PEO NEOs($)
SCT Total |  | 12,229,741 |  | 16,049,870 |  | 8,381,978
Deduct, amounts reported under "stock awards" column in the SCT Table |  | (10,592,029) |  | (14,620,472) |  | (5,918,557)
Add, fair value at vesting date of stock awards granted and vested in the current fiscal year |  | — |  | 19,711,035 |  | —
Add, fair value at fiscal year end of outstanding and unvested stock awards granted in the current fiscal year |  | 16,887,329 |  | — |  | 8,607,305
Add, change in fair value of outstanding and unvested stock awards granted in prior fiscal years |  | — |  | — |  | —
Add, change in fair value as of vesting date (from the end of the prior fiscal year) for stock awards granted in any prior fiscal year for which vesting conditions were satisfied during the fiscal year |  | 177,278 |  | 8,304,937 |  | 63,171
Compensation Actually Paid |  | 18,702,319 |  | 29,445,370 |  | 11,133,897
Non-PEO NEO Average Total Compensation Amount | $ 8,381,978 | 6,304,715 | 5,806,023 | 4,724,776
Non-PEO NEO Average Compensation Actually Paid Amount | $ 11,133,897 | 6,926,922 | 6,353,825 | 5,794,960
Adjustment to Non-PEO NEO Compensation Footnote | (2) The dollar amounts represent the amount of "compensation actually paid" or "CAP" as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned or paid to the PEO or Non-PEO NEOs during the applicable year. The following table represents the adjustments made to the Summary Compensation Table (SCT) total compensation for fiscal 2024 to calculate the compensation actually paid. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of the grant.
|  | PEO($) |  | Former PEO($) |  | Average for Non-PEO NEOs($)
SCT Total |  | 12,229,741 |  | 16,049,870 |  | 8,381,978
Deduct, amounts reported under "stock awards" column in the SCT Table |  | (10,592,029) |  | (14,620,472) |  | (5,918,557)
Add, fair value at vesting date of stock awards granted and vested in the current fiscal year |  | — |  | 19,711,035 |  | —
Add, fair value at fiscal year end of outstanding and unvested stock awards granted in the current fiscal year |  | 16,887,329 |  | — |  | 8,607,305
Add, change in fair value of outstanding and unvested stock awards granted in prior fiscal years |  | — |  | — |  | —
Add, change in fair value as of vesting date (from the end of the prior fiscal year) for stock awards granted in any prior fiscal year for which vesting conditions were satisfied during the fiscal year |  | 177,278 |  | 8,304,937 |  | 63,171
Compensation Actually Paid |  | 18,702,319 |  | 29,445,370 |  | 11,133,897
Compensation Actually Paid vs. Total Shareholder Return | The following chart shows the relationship among compensation actually paid to our PEO, Former PEO, the average compensation actually paid to our Non-PEO NEOs, and TSR for the applicable fiscal years. Our peer group TSR is also included. Refer to footnotes 3 and 4 in the table above for TSR methodology for Costco and the peer group. |  |  |
Compensation Actually Paid vs. Net Income | The following chart shows the relationship among compensation actually paid to our PEO, Former PEO, the average compensation actually paid to our Non-PEO NEOs, and net income for the applicable fiscal years. |  |  |
Compensation Actually Paid vs. Company Selected Measure | The following chart shows the relationship among compensation actually paid to our PEO, Former PEO, the average compensation actually paid to our Non-PEO NEOs, and net sales adjusted for changes in foreign currencies for the applicable fiscal years. Refer to Appendix A for a reconciliation of this non-GAAP measure to net sales under GAAP. |  |  |
Total Shareholder Return Vs Peer Group | (3) The Total Shareholder Return (TSR) represents the cumulative total return on an initial fixed investment of $100 invested in the Company's common stock from the last day of trading in fiscal 2020 to the last day of trading in each of the applicable fiscal years. The return assumes reinvestment of dividends. (4) The Peer Group TSR represents the S&P Retail Select Index, the index we use in the stock performance graph required by Item 201(e) of Regulation S-K, included in our fiscal year 2024 Form 10-K, filed with the SEC on October 9, 2024. |  |  |
Tabular List, Table | Financial Performance Measures The following list represents the most important metrics used to link Company performance to compensation actually paid for the most recently completed fiscal year. Only two measures are identified because they are the only measures used by the Company to link executive compensation to Company performance. •Net Sales Adjusted for Changes in Foreign Currencies •Income Before Income Taxes Adjusted for Changes in Foreign Currencies and Unusual Items |  |  |
Total Shareholder Return Amount | $ 276.32 | 163.78 | 158.84 | 133.65
Peer Group Total Shareholder Return Amount | 154.78 | 129.00 | 128.26 | 184.84
Net Income (Loss) | $ 7,367,000,000 | $ 6,292,000,000 | $ 5,844,000,000 | $ 5,007,000,000
Company Selected Measure Amount | 250,099,000,000 | 241,194,000,000 | 224,492,000,000 | 189,293,000,000
Measure:: 1 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Net Sales Adjusted for Changes in Foreign Currencies |  |  |
Non-GAAP Measure Description | Represents net sales adjusted for changes in foreign currencies. This selected measure is used as a performance condition for certain annual performance-based awards for both the PEO and Non-PEO NEOs. Please refer to Appendix A: Non-GAAP Financial Measures for a reconciliation of net sales adjusted for changes in foreign currencies, which is a non-GAAP measure, to net sales under GAAP. |  |  |
Measure:: 2 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Income Before Income Taxes Adjusted for Changes in Foreign Currencies and Unusual Items |  |  |
W. Craig Jelinek [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
PEO Total Compensation Amount | $ 16,049,870 |  |  |
PEO Actually Paid Compensation Amount | $ 29,445,370 |  |  |
PEO Name | W. Craig Jelinek | W. Craig Jelinek | W. Craig Jelinek | W. Craig Jelinek
W. Craig Jelinek [Member] | Deduct, amounts reported under "stockawards" column in the Summary Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (14,620,472) |  |  |
W. Craig Jelinek [Member] | Add, fair value at vesting date of stock awards granted and vested in the current fiscal year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 19,711,035 |  |  |
W. Craig Jelinek [Member] | Add,change in fair value as of vesting date (from the end of the prior fiscal year) for stock awards granted in any prior fiscal year for which vesting conditions were satisfied during the fiscal year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 8,304,937 |  |  |
Ron M. Vachris [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
PEO Name | Ron M. Vachris |  |  |
PEO | Deduct, amounts reported under "stockawards" column in the Summary Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ (10,592,029) |  |  |
PEO | Add, fair value at fiscal year end of oustanding and unvested stock awards granted in the current fiscal year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 16,887,329 |  |  |
PEO | Add,change in fair value as of vesting date (from the end of the prior fiscal year) for stock awards granted in any prior fiscal year for which vesting conditions were satisfied during the fiscal year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 177,278 |  |  |
Non-PEO NEO | Deduct, amounts reported under "stockawards" column in the Summary Compensation Table [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (5,918,557) |  |  |
Non-PEO NEO | Add, fair value at fiscal year end of oustanding and unvested stock awards granted in the current fiscal year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 8,607,305 |  |  |
Non-PEO NEO | Add,change in fair value as of vesting date (from the end of the prior fiscal year) for stock awards granted in any prior fiscal year for which vesting conditions were satisfied during the fiscal year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 63,171 |  |  |

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