| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | NEUBERGER BERMAN ETF TRUST |
| Entity Central Index Key | 0001506001 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Oct. 31, 2024 |
| C000234391 | |
| Shareholder Report [Line Items] | |
| Fund Name | Energy Transition & Infrastructure ETF |
| No Trading Symbol [Flag] | true |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of September 1, 2024 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/etfs/energy-transition-infrastructure-etf?section=documents fundinfo nb.com |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800.877.9700 |
| Additional Information Email | fundinfo@nb.com</span>" id="sjs-B20"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">fundinfo@nb.com</span> |
| Additional Information Website | www.nb.com/en/us/products/etfs/energy-transition-infrastructure-etf?section=documents</span>" id="sjs-B21"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/etfs/energy-transition-infrastructure-etf?section=documents</span> |
| Expenses [Text Block] | What were the Fund's costs for the period? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Footnote Reference Costs paid as a percentage of a $10,000 investment Energy Transition & Infrastructure ETF $9 0.55% Footnote Description Footnote * Expenses for a full reporting period would be higher. |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.55% |
| Factors Affecting Performance [Text Block] | How did the Fund perform over the period? For the one year ended October 31, 2024, which was prior to the Fund’s strategy change as described in the Material Fund Changes section, the Fund achieved a 44.69% total return on a net asset value (NAV) basis and a 44.17% total return on a market price basis. Over the two-month reporting period, the Fund generated a total return of 4.10% on a NAV basis and a 4.25% total return on a market price basis. These Fund returns compare favorably to the one-year 32.79% total return of the MSCI All Country World Index (Net) (the Index) and the two-month 0.03% total return of the Index. The Fund's success was largely driven by strong performances in the Utilities and Industrials sectors. However, the Fund's limited exposure to the Information Technology (IT) and Communication Services sectors, due to thematic relevance, led to relative underperformance versus the Index in those areas. Performance Attribution Top Contributors Top Detractors Utilities sector Industrials sector IT sector Communications Services sector |
| Performance Past Does Not Indicate Future [Text] | Results represent the Fund's past performance, which is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Energy Transition & Infrastructure ETF (at NAV) $12,437 MSCI All Country World Index (Net) $12,372 4/6/2022 $10,000 $10,000 8/31/22 $9,621 $8,793 8/31/23 $9,689 $10,020 8/31/24 $11,947 $12,369 10/31/24 $12,437 $12,372 |
| Average Annual Return [Table Text Block] | Name 1 Year Since Inception 4/6/22 Energy Transition & Infrastructure ETF (at NAV) 44.69% 8.85% MSCI All Country World Index (Net) 32.79% 8.63% |
| Performance Inception Date | Apr. 06, 2022 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the effect of taxes a shareholder would pay on Fund distributions or on the sale of Fund shares. |
| Material Change Date | Nov. 01, 2024 |
| AssetsNet | $ 14,551,178 |
| Holdings Count | Holding | 26 |
| Advisory Fees Paid, Amount | $ 28,857 |
| InvestmentCompanyPortfolioTurnover | 2% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $14,551,178 Number of Portfolio Holdings 26 Portfolio Turnover Rate 2% Total Investment Advisory Fees Paid $28,857 |
| Holdings [Text Block] | Sector Allocation (as a % of Total Investments Footnote Reference Energy 73.7 % Utilities 22.3 % Materials 4.0 % Total 100.0% Footnote Description Footnote Derivatives (other than options purchased), if any, are excluded from this calculation. |
| Largest Holdings [Text Block] | Top Ten Securities (as a % of Total Investments Footnote Reference Energy Transfer LP 8.2% Targa Resources Corp. 7.7% Enterprise Products Partners LP 7.4% Cheniere Energy, Inc. 6.4% Western Midstream Partners LP 5.6% Williams Cos., Inc. 5.1% Sempra 5.1% Clearway Energy, Inc., Class C 4.3% CenterPoint Energy, Inc. 4.1% NextEra Energy, Inc. 3.9% Footnote Description Footnote Derivatives (other than options purchased), if any, are excluded from this calculation. |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since September 1, 2024, and effective November 1, 2024. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/etfs/energy-transition-infrastructure-etf?section=documents or upon request at 800.877.9700 or fundinfo nb.com The Fund's name changed to the Neuberger Berman Energy Transition & Infrastructure ETF. The goal changed to seek total return through growth and income, and the portfolio managers changed. As described more fully in a supplement dated October 15, 2024, on October 14, 2024, shareholders approved a change (a) in the Fund's classification from diversified to non-diversified; and (b) to the Fund's industry concentration policy to invest greater than 25% of its total assets in the oil, gas and consumable fuels industry. The Fund’s principal investment strategy and risks changed consistent with the change in the Fund’s 80% policy to invest at least 80% of its net assets in equity securities of energy transition companies and infrastructure companies, which includes the addition of risks related to energy transition companies, master limited partnerships, natural resources, non-diversification, and the oil, gas and consumable fuels industry. The fiscal year end changed from August 31 to October 31. The Fund also changed its distribution frequency for net investment income from annually to quarterly. The Fund's fee structure changed from a unitary fee of 0.65% of average net assets to separate management and administration agreements of 0.55% and 0.09% of average net assets, respectively. The Fund has a new contractual expense limitation agreement until 10/31/2028 to keep fees consistent with the Fund’s prior fees until that date, including waivers. |
| Material Fund Change Name [Text Block] | The Fund's name changed to the Neuberger Berman Energy Transition & Infrastructure ETF. |
| Material Fund Change Objectives [Text Block] | The goal changed to seek total return through growth and income, and the portfolio managers changed. |
| Material Fund Change Expenses [Text Block] | The Fund's fee structure changed from a unitary fee of 0.65% of average net assets to separate management and administration agreements of 0.55% and 0.09% of average net assets, respectively. The Fund has a new contractual expense limitation agreement until 10/31/2028 to keep fees consistent with the Fund’s prior fees until that date, including waivers. |
| Material Fund Change Strategies [Text Block] | As described more fully in a supplement dated October 15, 2024, on October 14, 2024, shareholders approved a change (a) in the Fund's classification from diversified to non-diversified; and (b) to the Fund's industry concentration policy to invest greater than 25% of its total assets in the oil, gas and consumable fuels industry. The Fund’s principal investment strategy and risks changed consistent with the change in the Fund’s 80% policy to invest at least 80% of its net assets in equity securities of energy transition companies and infrastructure companies, which includes the addition of risks related to energy transition companies, master limited partnerships, natural resources, non-diversification, and the oil, gas and consumable fuels industry. The fiscal year end changed from August 31 to October 31. The Fund also changed its distribution frequency for net investment income from annually to quarterly. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since September 1, 2024, and effective November 1, 2024. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/etfs/energy-transition-infrastructure-etf?section=documents or upon request at 800.877.9700 or fundinfo nb.com |
| C000248822 | |
| Shareholder Report [Line Items] | |
| Fund Name | Short Duration Income ETF |
| No Trading Symbol [Flag] | true |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of November 1, 2023 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/etfs/short-duration-income-etf?section=documents fundinfo nb.com |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 800.877.9700 |
| Additional Information Email | fundinfo@nb.com</span>" id="sjs-B55"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">fundinfo@nb.com</span> |
| Additional Information Website | www.nb.com/en/us/products/etfs/short-duration-income-etf?section=documents</span>" id="sjs-B56"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/etfs/short-duration-income-etf?section=documents</span> |
| Expenses [Text Block] | What were the Fund's costs for the year? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Short Duration Income ETF $35 0.34% |
| Expenses Paid, Amount | $ 35 |
| Expense Ratio, Percent | 0.34% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? The Fund generated an 8.64% total return on a net asset value (NAV) basis and an 8.76% total return on a market price basis versus the 6.25% total return for the Bloomberg 1-3 Year U.S. Government/Credit Bond Index (the Index) over the same period. Top contributors relative to the Index included the Fund’s exposures to Securitized Credit, Investment Grade Credit and Non-Investment Grade Credit. The Fund’s duration and yield curve positioning detracted from performance. Performance Attribution Top Contributors Top Detractors Derivatives Securitized Credit Investment Grade Credit Non-Investment Grade Credit Duration and yield curve positioning Futures contracts |
| Performance Past Does Not Indicate Future [Text] | Results represent the Fund's past performance, which is not a good predictor of how the Fund will perform in the future. |
| Line Graph [Table Text Block] | Short Duration Income ETF (at NAV) $12,092 Bloomberg U.S. Aggregate Bond Index $11,593 Bloomberg 1-3 Year U.S. Government/Credit Bond Index $11,672 10/31/14 $10,000 $10,000 $10,000 10/31/15 $10,064 $10,196 $10,087 10/31/16 $10,170 $10,641 $10,219 10/31/17 $10,246 $10,737 $10,288 10/31/18 $10,276 $10,517 $10,323 10/31/19 $10,750 $11,727 $10,827 10/31/20 $10,999 $12,453 $11,194 10/31/21 $11,358 $12,393 $11,189 10/31/22 $10,603 $10,450 $10,643 10/31/23 $11,131 $10,487 $10,986 10/31/24 $12,092 $11,593 $11,672 |
| Average Annual Return [Table Text Block] | Name 1 Year 5 Years 10 Years Short Duration Income ETF (at NAV) 8.64% 2.38% 1.92% Bloomberg U.S. Aggregate Bond Index 10.55% (0.23)% 1.49% Bloomberg 1-3 Year U.S. Government/Credit Bond Index 6.25% 1.51% 1.56% |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the effect of taxes a shareholder would pay on Fund distributions or on the sale of Fund shares. |
| Material Change Date | Nov. 01, 2023 |
| AssetsNet | $ 151,166,025 |
| Holdings Count | Holding | 355 |
| Advisory Fees Paid, Amount | $ 0 |
| InvestmentCompanyPortfolioTurnover | 74% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $151,166,025 Number of Portfolio Holdings 355 Portfolio Turnover Rate 74% Total Investment Advisory Fees Paid $0 |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Corporate Bonds 38.7% Mortgage-Backed Securities 29.6% Asset-Backed Securities 23.9% Loan Assignments 1.4% Short-Term Investments 6.8% Liabilities Less Other Assets (0.5)% Footnote Reference Total 100.0% Footnote Description Footnote Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. |
| Largest Holdings [Text Block] | Top Ten Issuers (as a % of Total Investments Footnote Reference State Street Institutional U.S. Government Money Market Fund Premier Class 6.8% Federal Home Loan Mortgage Corp. 5.4% Federal National Mortgage Association Connecticut Avenue Securities 4.5% Federal National Mortgage Association 3.7% Federal Home Loan Mortgage Corp. STACR REMIC Trust 2.6% Citigroup, Inc. 1.5% Goldman Sachs Group, Inc. 1.4% Wells Fargo & Co. 1.4% Signal Peak CLO 8 Ltd. 1.3% Bank of America Corp. 1.3% Footnote Description Footnote Derivatives (other than options purchased), if any, are excluded from this calculation. |
| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/etfs/short-duration-income-etf?section=documents or upon request at 800.877.9700 or fundinfo nb.com Effective after the close of business on June 21, 2024, pursuant to an Agreement and Plan of Reorganization previously approved by the Board of Trustees, Neuberger Berman Short Duration Bond Fund was reorganized into Neuberger Berman Short Duration Income ETF. Neuberger Berman Short Duration Income ETF has the same investment adviser, investment objective and fundamental investment policies and substantially similar principal investment strategies as its predecessor fund. In connection with the reorganization, the Fund's management fee changed to 0.17% of the first $2 billion of average daily net assets and 0.15% of average daily net assets in excess of $2 billion. Its administration fee changed to 0.09% of average net assets and the contractual expense cap was changed to 0.34% of average net assets until 10/31/2027. |
| Material Fund Change Expenses [Text Block] | In connection with the reorganization, the Fund's management fee changed to 0.17% of the first $2 billion of average daily net assets and 0.15% of average daily net assets in excess of $2 billion. Its administration fee changed to 0.09% of average net assets and the contractual expense cap was changed to 0.34% of average net assets until 10/31/2027. |
| Material Fund Change Strategies [Text Block] | Effective after the close of business on June 21, 2024, pursuant to an Agreement and Plan of Reorganization previously approved by the Board of Trustees, Neuberger Berman Short Duration Bond Fund was reorganized into Neuberger Berman Short Duration Income ETF. Neuberger Berman Short Duration Income ETF has the same investment adviser, investment objective and fundamental investment policies and substantially similar principal investment strategies as its predecessor fund. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since November 1, 2023. For more complete information, you may review the Fund's prospectus, which is available at www.nb.com/en/us/products/etfs/short-duration-income-etf?section=documents or upon request at 800.877.9700 or fundinfo nb.com |
| C000250828 | |
| Shareholder Report [Line Items] | |
| Fund Name | Flexible Credit Income ETF |
| No Trading Symbol [Flag] | true |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Fund for the period of June 24, 2024 to October 31, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at www.nb.com/en/us/products/etfs/flexible-credit-income-etf?section=documents fundinfo nb.com |
| Additional Information Phone Number | 800.877.9700 |
| Additional Information Email | fundinfo@nb.com</span>" id="sjs-B86"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">fundinfo@nb.com</span> |
| Additional Information Website | www.nb.com/en/us/products/etfs/flexible-credit-income-etf?section=documents</span>" id="sjs-B87"><span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left;">www.nb.com/en/us/products/etfs/flexible-credit-income-etf?section=documents</span> |
| Expenses [Text Block] | What were the Fund's costs for the period? (based on a hypothetical $10,000 investment) Fund Name Costs of a $10,000 investment Footnote Reference Costs paid as a percentage of a $10,000 investment Flexible Credit Income ETF $14 0.39% Footnote Description Footnote * Expenses for a full reporting period would be higher. |
| Expenses Paid, Amount | $ 14 |
| Expense Ratio, Percent | 0.39% |
| Factors Affecting Performance [Text Block] | How did the Fund perform over the period? From its inception on June 24, 2024 to October 31, 2024, the Fund generated a 3.74% total return on a net asset value (NAV) basis and a 4.07% total return on a market price basis versus the 1.85% total return for the Bloomberg U.S. Aggregate Bond Index (the Index) over the same period. The top contributors relative to the Index included the Fund’s exposures within Non-Investment Grade Credit, Emerging Markets Debt and Investment Grade Credit. There were no detractors over the period. Performance Attribution Top Contributors Top Detractors Derivatives Forward foreign currency contracts Futures contracts Swap contracts Non-Investment Grade Credit Emerging Markets Debt Investment Grade Credit There were no detractors over the period |
| Performance Past Does Not Indicate Future [Text] | Results represent the Fund's past performance, which is not a good predictor of how the Fund will perform in the future. |
| Average Annual Return [Table Text Block] | Average Annual Total Returns Key Fund Statistics Net Assets $52,221,828 Number of Portfolio Holdings 318 Portfolio Turnover Rate 33% Total Investment Advisory Fees Paid $0 Name Since Inception 6/24/24 Flexible Credit Income ETF (at NAV) 3.74% Bloomberg U.S. Universal Index 2.14% Bloomberg U.S. Aggregate Bond Index 1.85% The table does not reflect the effect of taxes a shareholder would pay on Fund distributions or on the sale of Fund shares. The investment return and principal value of an investment will fluctuate so that an investor's shares, when sold or redeemed, may be worth more or less than their original cost. Results represent the Fund's past performance, which is not a good predictor of how the Fund will perform in the future. Current performance may be lower or higher than the performance data quoted. www.nb.com/en/us/products/etfs/flexible-credit-income-etf?section=performance As stated in the Fund’s most recent prospectus, the estimated total annual operating expense ratios for fiscal year 2024 were 0.86%/0.40% (before and after any expense reimbursements and/or fee waiver, respectively). Absent any applicable expense reimbursements and/or fee waivers, returns would have been lower. |
| Performance Inception Date | Jun. 24, 2024 |
| No Deduction of Taxes [Text Block] | The table does not reflect the effect of taxes a shareholder would pay on Fund distributions or on the sale of Fund shares. |
| AssetsNet | $ 52,221,828 |
| Holdings Count | Holding | 318 |
| Advisory Fees Paid, Amount | $ 0 |
| InvestmentCompanyPortfolioTurnover | 33% |
| Holdings [Text Block] | Portfolio by Investment Type (as a % of Total Net Assets) Corporate Bonds 63.2 % Asset-Backed Securities 11.5 % Loan Assignments 10.5 % Foreign Government Securities 8.3 % U.S. Treasury Obligations 4.1 % Mortgage-Backed Securities 3.8 % Short-Term Investments 1.6 % Liabilities Less Other Assets (3.0 )% Footnote Reference Total 100.0% Footnote Description Footnote Includes the impact of the Fund's open positions in derivatives (other than options purchased), if any. |
| Largest Holdings [Text Block] | Top Ten Issuers (as a % of Total Investments Footnote Reference U.S. Treasury 4.0% Wellington Management CLO 3 Ltd. 2.3% Ballyrock CLO 27 Ltd. 2.3% AGL CLO 33 Ltd. 2.3% Symphony CLO 45 Ltd. 2.3% State Street Institutional U.S. Government Money Market Fund 1.6% AssuredPartners, Inc. 1.3% Bausch & Lomb Corp. 1.2% Motion Finco SARL 1.1% Trident TPI Holdings, Inc. 1.0% Footnote Description Footnote Derivatives (other than options purchased), if any, are excluded from this calculation. |
| Material Fund Change [Text Block] | |
