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Equity (Tables) | 3 Months Ended
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Nov. 24, 2024
Equity [Abstract] |
Stock Repurchased During Period | The following table summarizes the repurchase activity:
| Shares Repurchased (000s) |  | Average Price per Share |  | Total Cost
First quarter of 2025 | 230 |  |  | $ | 899.23 |  |  | $ | 206 |
First quarter of 2024 | 288 |  |  | $ | 564.06 |  |  | $ | 162 |

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- Definition Schedule of Common Stock Repurchased And Average Price Paid Per Share [Table Text Block] + References No definition available. + Details
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Namespace Prefix: | cost_
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Balance Type: | na
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- References No definition available. + Details
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