Shareholder Report |
6 Months Ended | |||||||||||
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Dec. 31, 2025
USD ($)
Holding
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| Shareholder Report [Line Items] | ||||||||||||
| Document Type | N-CSRS | |||||||||||
| Amendment Flag | false | |||||||||||
| Registrant Name | BNY Mellon ETF Trust | |||||||||||
| Entity Central Index Key | 0001493580 | |||||||||||
| Entity Investment Company Type | N-1A | |||||||||||
| Document Period End Date | Dec. 31, 2025 | |||||||||||
| C000228810 [Member] | ||||||||||||
| Shareholder Report [Line Items] | ||||||||||||
| Fund Name | BNY Mellon Ultra Short Income ETF | |||||||||||
| Class Name | BNY Mellon Ultra Short Income ETF | |||||||||||
| Trading Symbol | BKUI | |||||||||||
| Security Exchange Name | NYSEArca | |||||||||||
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about BNY Mellon Ultra Short Income ETF (the “Fund”) for the period of July 1, 2025 to December 31, 2025. | |||||||||||
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at bny.com/investments/etfliterature. You can also request this information by calling 1-833-383-2696 or calling your financial adviser. | |||||||||||
| Material Fund Change Notice [Text Block] |
This report describes changes to the Fund that occurred during the reporting period.
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| Additional Information Phone Number | 1-833-383-2696 | |||||||||||
| Additional Information Website | bny.com/investments/etfliterature | |||||||||||
| Expenses [Text Block] |
What were the Fund’s costs for the last six months ?
(based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 6 | [1] | ||||||||||
| Expense Ratio, Percent | 0.12% | [1],[2] | ||||||||||
| Net Assets | $ 229,000,000 | |||||||||||
| Holdings Count | Holding | 131 | |||||||||||
| Investment Company Portfolio Turnover | 7.70% | |||||||||||
| Additional Fund Statistics [Text Block] |
KEY FUND STATISTICS (AS OF 12/31/25 )
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| Holdings [Text Block] |
Portfolio Holdings (as of 12/31/25 )
Sector Allocation (Based on Net Assets)
Allocation of Holdings (Based on Net Assets)
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| Material Fund Change [Text Block] |
How has the Fund changed?
This is a summary of certain changes to the Fund since July 1, 2025 . For more complete information, you may review the Fund’s current prospectus dated October 31, 2025 at bny.com/investments/etfliterature or upon request at 1-833-383-2696 or by calling your financial adviser.
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| Material Fund Change Expenses [Text Block] |
BNY Mellon ETF Investment Adviser, LLC (the “Adviser”) has contractually agreed, until at least October 31, 2026, to assume the direct expenses of the Fund so that the Fund’s total annual operating expenses (including acquired fund fees and expenses (if any)) (excluding payments under the Fund’s 12b-1 plan (if any), interest expenses (if any), taxes, brokerage commissions, costs of holding shareholder meetings, fees and expenses associated with any securities lending program adopted by the Fund, and litigation and potential litigation and other extraordinary expenses not incurred in the ordinary course of the Fund’s business) do not exceed 0.12% of the Fund’s average daily net assets. Prior to October 31, 2026, this expense limitation agreement may only be terminated by the Fund’s board. On or after October 31, 2026, the Adviser may terminate this expense limitation agreement at any time.
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| Summary of Change Legend [Text Block] |
This is a summary of certain changes to the Fund since July 1, 2025 . For more complete information, you may review the Fund’s current prospectus dated October 31, 2025 at bny.com/investments/etfliterature or upon request at 1-833-383-2696 or by calling your financial adviser.
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| Updated Prospectus Phone Number | 1-833-383-2696 | |||||||||||
| Updated Prospectus Web Address | bny.com/investments/etfliterature | |||||||||||
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