| Form N-CSR Cover | 12 Months Ended |
| Nov. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | AB Active ETFs, Inc. |
| Entity Central Index Key | 0001496608 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Nov. 30, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | AB Active ETFs, Inc. |
| Entity Central Index Key | 0001496608 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Nov. 30, 2024 |
| C000247940 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB International Low Volatility Equity ETF |
| Trading Symbol | ILOW |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB International Low Volatility Equity ETF (the “Fund ”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/ILOW-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/ILOW-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB International Low Volatility Equity ETF $53 0.52% Prior to commencing operations, the Fund acquired the assets and liabilities of AB International Low Volatility Equity Portfolio (a "Predecessor Fund"), a series of AB Cap Fund, Inc., and adopted the accounting and performance history of that fund (a "Reorganization"), as of the close of business on July 12, 2024.The Fund has the same investment objective, strategies, policies and portfolio management team as the Predecessor Fund. The performance of the Predecessor Fund shown below has not been adjusted to reflect the lower fees and expenses that will be incurred by the Fund. The advisory fees paid, disclosed below includes the impact of advisory fee waiver arrangement of the Predecessor Fund. The Predecessor Fund was a mutual fund, and the average annual total returns as shown below are based on NAV per share, and are not based on market prices for an ETF share as traded on an exchange. Predecessor Fund performance is based on the performance of Advisor Class shares. Prior to the Fund's acquisition of the Predecessor Fund, the other share classes of the Predecessor Fund were converted into Advisor Class shares. |
| Expenses Paid, Amount | $ 53 |
| Expense Ratio, Percent | 0.52% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund outperformed the Morgan Stanley Capital International Europe, Australasia and the Far East (“MSCI EAFE”) Index (the "benchmark"), before sales charges.. Overall sector allocation and security selection contributed to performance, relative to the benchmark. Security selection within consumer staples and consumer discretionary contributed the most, while selection within real estate and health care detracted. In terms of sector allocation, an overweight to financials and an underweight to materials added to gains and offset losses from an overerweight to energy and an underweight to health care. Country allocation (a result of bottom-up security analysis combined with fundamental research) contributed, led by an overweight to Japan; an underweight to Australia detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund ’s past performance is not a good predictor of the Fund ’s future performance.</span>" id="sjs-B23"><span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 15.6px; margin: 0px; overflow: visible; text-align: left;">The Fund ’s past performance is not a good predictor of the Fund ’s future performance.</span> |
| Line Graph [Table Text Block] | AB International Low Volatility Equity ETF MSCI EAFE Index (net) 07/15 $10,000 $10,000 11/15 $9,760 $9,706 11/16 $9,734 $9,351 11/17 $12,093 $11,901 11/18 $11,710 $10,956 11/19 $12,900 $12,319 11/20 $13,296 $13,104 11/21 $14,713 $14,515 11/22 $13,185 $13,042 11/23 $14,366 $14,655 11/24 $17,037 $15,920 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years Since Inception 07/29/15 AB International Low Volatility Equity ETF 18.59 % 5.72 % 5.87 % MSCI EAFE Index (net) 11.88 % 5.89 % - % |
| Performance Inception Date | Jul. 29, 2015 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 825,953,183 |
| Holdings Count | Holding | 89 |
| Advisory Fees Paid, Amount | $ 1,770,709 |
| InvestmentCompanyPortfolioTurnover | 14% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $825,953,183 # of Portfolio Holdings 89 Portfolio Turnover Rate 14% Total Advisory Fees Paid $1,770,709 |
| Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Novo Nordisk A/S - Class B $24,980,497 3.0 % Shell PLC $21,667,521 2.6 % Constellation Software, Inc./Canada $20,780,736 2.5 % Oversea-Chinese Banking Corp., Ltd. $18,894,830 2.3 % RELX PLC (London) $17,858,995 2.2 % SAP SE $16,793,566 2.0 % NatWest Group PLC $16,585,087 2.0 % London Stock Exchange Group PLC $16,261,440 2.0 % Tesco PLC $15,784,385 1.9 % Prysmian SpA $15,560,466 1.9 % Total $185,167,523 22.4 % Sector Breakdown Value Value Financials 26.0% Industrials 18.8% Information Technology 10.7% Health Care 10.2% Consumer Staples 9.3% Consumer Discretionary 8.6% Communication Services 5.1% Energy 4.5% Utilities 3.0% Real Estate 0.8% Materials 0.6% Short-Term Investments 1.5% Other assets less liabilities 0.9% Country Breakdown Value Value United Kingdom 20.6% Japan 15.8% Netherlands 7.5% Germany 6.5% United States 6.3% Canada 6.1% Italy 5.0% Singapore 4.2% France 4.2% Switzerland 3.6% Denmark 3.0% Spain 2.8% Finland 2.4% Australia 1.8% Others 7.8% Short-Term Investments 1.5% Other assets less liabilities 0.9% |
| Material Fund Change [Text Block] | |
| C000247934 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Short Duration High Yield ETF |
| Trading Symbol | SYFI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Short Duration High Yield ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/SYFI-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/SYFI-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Short Duration High Yield ETF $39 0.39% Prior to commencing operations, the Fund acquired the assets and liabilities of AB Short Duration High Yield Portfolio (a “Predecessor Fund”), a series of AB Bond Fund, Inc., and adopted the accounting and performance history of that fund (a “Reorganization”), as of the close of business on June 7, 2024. The Fund has the same investment objective, strategies, policies and portfolio management team as the Predecessor Fund. The performance of the Predecessor Fund shown below has not been adjusted to reflect the lower fees and expenses that will be incurred by the Fund. The Predecessor Fund was a mutual fund, and the average annual total returns as shown below are based on NAV per share, and are not based on market prices for an ETF share as traded on an exchange. Predecessor Fund performance is based on the performance of Advisor Class shares. Prior to the Fund's acquisition of the Predecessor Fund, the other share classes of the Predecessor Fund were converted into Advisor Class shares. |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.39% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? Over the 12-month period, the portfolio underperformed the Bloomberg US High Yield 1-5 Year Cash Pay 2% Total Return Index (the “benchmark“), before sales charges. Security selection detracted the most from relative performance, mainly from selections in consumer non-cyclicals, media, telecommunications and services that outweighed gains from selections in energy, other consumer cyclicals and finance. Yield-curve positioning in the US also detracted, particularly from underweights to the six-month and two-year parts of the curve, which were partially offset by a gain from an overweight to the five-year part of the curve. At the country allocation level, off-benchmark exposure to the eurozone contributed to relative performance. Currency decisions did not impact investment results during the period. Treasury futures were used to manage duration and yield-curve positioning, while currency forwards were used to hedge currency risk. Credit default swaps were used to maintain overall account risk relative to benchmark and to actively take single issuer exposure. Purchased options were used to hedge tail risk; written options were utilized to hedge tail risk via put spreads. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | Fund Performance The following graph shows the performance of hypothetical $10,000 investments in the Fund, a broad-based securities market index and an additional index that corresponds to the Fund's investment strategies, over the most recently completed 10 fiscal years of the Fund, or since inception, if shorter. The Fund's performance reflects applicable sales charges and assumes the reinvestment of dividends. AB Short Duration High Yield ETF Bloomberg U.S. Corporate Bond Index Bloomberg U.S. High Yield 1-5 Year Cash Pay 2% Total Return Index 11/14 $10,000 $10,000 $10,000 11/15 $10,033 $10,016 $9,590 11/16 $10,724 $10,475 $10,697 11/17 $11,235 $11,120 $11,541 11/18 $11,305 $10,782 $11,843 11/19 $12,188 $12,491 $12,509 11/20 $12,677 $13,710 $13,075 11/21 $13,152 $13,637 $13,930 11/22 $12,221 $11,529 $13,337 11/23 $13,286 $11,939 $14,465 11/24 $14,647 $12,972 $16,216 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns AATR 1 Year 5 Years 10 Years AB Short Duration High Yield ETF 10.25 % 3.67 % 3.89 % Bloomberg U.S. Corporate Bond Index 8.66 % 0.76 % 2.64 % Bloomberg U.S. High Yield 1-5 Year Cash Pay 2% Total Return Index 12.10 % 5.33 % 4.95 % The addition of the Bloomberg U.S. Corporate Bond Index broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. The Fund’s past performance is not a good predictor of the Fund’s future performance. The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. Visit https://www.abfunds.com/link/AB/SYFI-A for the most recent performance information. |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| Performance Table Market Index Changed [Text Block] | The addition of the Bloomberg U.S. Corporate Bond Index broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. |
| AssetsNet | $ 754,350,983 |
| Holdings Count | Holding | 666 |
| Advisory Fees Paid, Amount | $ 465,670 |
| InvestmentCompanyPortfolioTurnover | 4% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $754,350,983 # of Portfolio Holdings 666 Portfolio Turnover Rate 4% Total Advisory Fees Paid $465,670 |
| Holdings [Text Block] | Security Type Breakdown Corporates - Non-Investment Grade 74.0% Corporates - Investment Grade 15.0% Emerging Markets - Corporate Bonds 2.8% Bank Loans 1.9% Emerging Markets - Sovereigns 0.8% Collateralized Loan Obligations 0.4% Quasi-Sovereigns 0.3% Commercial Mortgage-Backed Securities 0.2% Short-Term Investments 3.3% Other assets less liabilities 1.3% Country Breakdown Value Value United States 71.3% United Kingdom 4.6% Canada 3.6% Germany 2.4% Italy 1.7% France 1.4% Spain 1.4% Netherlands 0.9% Australia 0.8% Luxembourg 0.8% Ireland 0.7% Israel 0.6% Hong Kong 0.6% Others 4.6% Short-Term Investments 3.3% Other assets less liabilities 1.3% |
| Material Fund Change [Text Block] | |
| C000247935 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Short Duration Income ETF |
| Trading Symbol | SDFI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Short Duration Income ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https:/www.abfunds.com/link/AB/SDFI-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https:/www.abfunds.com/link/AB/SDFI-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Short Duration Income ETF $30 0.30% Prior to commencing operations, the Fund acquired the assets and liabilities of AB Short Duration Income Portfolio (a "Predecessor Fund"), a series of AB Bond Fund, Inc., and adopted the accounting and performance history of that fund (a "Reorganization"), as of the close of business on June 7, 2024.The Fund has the same investment objective, strategies, policies and portfolio management team as the Predecessor Fund. The performance of the Predecessor Fund shown below has not been adjusted to reflect the lower fees and expenses that will be incurred by the Fund. The Predecessor Fund was a mutual fund, and the average annual total returns as shown below are based on NAV per share, and are not based on market prices for an ETF share as traded on an exchange. Predecessor Fund performance is based on the performance of Advisor Class shares. Prior to the Fund's acquisition of the Predecessor Fund, the other share classes of the Predecessor Fund were converted into Advisor Class shares. |
| Expenses Paid, Amount | $ 30 |
| Expense Ratio, Percent | 0.30% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period, all share chasses of the Fund outperformed the Bloomberg 1-5 Year US Government/Credit Index (the “benchmark”), before sales charges. Industry allocation was the primary contributor to performance, relative to the benchmark, from an underweight to US Treasuries and off-benchmark exposure to collateralized mortgage obligations, commercial mortgage-backed securities and collateral loan obligations that were partially offset by losses from exposure to investment-grade credit default swaps in the US. Security selection also contributed from selections in other asset-backed securities and energy. Overall yield-curve positioning in the US detracted from performance. Off-benchmark country allocation to the eurozone also added to performance. Currency decisions did not impact performance during the period. The Fund used derivatives in the form of interest rate swaps, currency forwards and credit default swaps. Interest rate futures were used to manage and hedge duration risk and/or take active yield-curve positioning, while currency forwards were used to hedge foreign currency exposure. Credit default swaps were also used to effectively obtain high yield credit/sector exposure. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Short Duration Income ETF Bloomberg U.S. Aggregate Bond Index Bloomberg 1-5 Year U.S. Government/Credit Index 12/18 $10,000 $10,000 $10,000 11/19 $10,704 $10,244 $10,565 11/20 $11,049 $10,990 $11,067 11/21 $11,106 $10,863 $10,995 11/22 $10,392 $9,468 $10,369 11/23 $10,914 $9,580 $10,707 11/24 $11,673 $10,989 $11,302 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years Since Inception 12/12/18 AB Short Duration Income ETF 6.95 % 1.68 % 2.63 % Bloomberg U.S. Aggregate Bond Index 6.88 % - % 1.59 % Bloomberg 1-5 Year U.S. Government/Credit Index 5.56 % 1.36 % 2.07 % |
| Performance Inception Date | Dec. 12, 2018 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| Performance Table Market Index Changed [Text Block] | The addition of the Bloomberg U.S. Aggregate Bond Index broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. |
| AssetsNet | $ 88,503,364 |
| Holdings Count | Holding | 383 |
| Advisory Fees Paid, Amount | $ 21,800 |
| InvestmentCompanyPortfolioTurnover | 1% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $88,503,364 # of Portfolio Holdings 383 Portfolio Turnover Rate 1% Total Advisory Fees Paid $21,800 |
| Holdings [Text Block] | Security Type Breakdown Value Value Corporates - Investment Grade 36.9% Governments - Treasuries 30.3% Asset-Backed Securities 12.0% Collateralized Loan Obligations 9.2% Corporates - Non-Investment Grade 6.7% Commercial Mortgage-Backed Securities 1.8% Emerging Markets - Sovereigns 1.0% Collateralized Mortgage Obligations 0.4% Bank Loans 0.3% Short-Term Investments 0.6% Other assets less liabilities 0.8% |
| Material Fund Change [Text Block] | |
| C000245882 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Conservative Buffer ETF |
| Trading Symbol | BUFC |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Conservative Buffer ETF (the “Fund”) for the period of December 13, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/BUFC-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/BUFC-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Conservative Buffer ETF $71 0.69% |
| Expenses Paid, Amount | $ 71 |
| Expense Ratio, Percent | 0.69% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? Since inception, the Fund returned 12.31% versus the Standard & Poor’s (“S&P”) 500 Index (the "benchmark") return of 31.65%, achieving its objective of providing market participation, up to a return cap and protecting against market declines of up to 15% over each three-month outcome period. The Fund holds a basket of options on the SPDR S&P 500 ETF, which reflects the S&P 500 Index with no active bets on sectors or asset classes. The Fund used derivatives in the form of purchased options for hedging and investment purposes, which added to performance. Writing options were used for investment purposes, which detracted from performance. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Conservative Buffer ETF S&P 500 Index 12/23 $10,000 $10,000 11/24 $11,220 $13,165 |
| Average Annual Return [Table Text Block] | AATR Since Inception 12/13/23 AB Conservative Buffer ETF 12.31 % S&P 500 Index 31.65 % |
| Performance Inception Date | Dec. 13, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 696,738,691 |
| Holdings Count | Holding | 3 |
| Advisory Fees Paid, Amount | $ 3,417,651 |
| InvestmentCompanyPortfolioTurnover | 0% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $696,738,691 # of Portfolio Holdings 3 Portfolio Turnover Rate 0% Total Advisory Fees Paid $3,417,651 |
| Holdings [Text Block] | Sector Breakdown Value Value Options on Equity Indices 101.4% Short-Term Investments 0.5% Other assets less liabilities - |
| Material Fund Change [Text Block] | |
| C000245883 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Core Plus Bond ETF |
| Trading Symbol | CPLS |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Core Plus Bond ETF (the “Fund”) for the period of December 13, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/CPLS-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/CPLS-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Core Plus Bond ETF $32 0.32% |
| Expenses Paid, Amount | $ 32 |
| Expense Ratio, Percent | 0.32% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? Since inception, the Fund has outperformed the Bloomberg U.S. Aggregate Bond Index (the “benchmark”). Security selection among investment-grade corporate bonds, underweight in mortgage-backed securities, and out-of-benchmark allocation to high-yield corporate bonds contributed, relative to the benchmark. Yield-curve positioning detracted marginally with portfolio running similar benchmark interest rate exposures. Country allocation and currency decisions did not impact performance during the period. The fund used derivatives in the form of treasury futures for hedging purposes. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Core Plus Bond ETF Bloomberg U.S. Aggregate Bond Index 12/23 $10,000 $10,000 11/24 $10,618 $10,561 |
| Average Annual Return [Table Text Block] | AATR Since Inception 12/13/23 AB Core Plus Bond ETF 6.19 % Bloomberg U.S. Aggregate Bond Index 5.61 % |
| Performance Inception Date | Dec. 13, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 55,382,988 |
| Holdings Count | Holding | 458 |
| Advisory Fees Paid, Amount | $ 140,742 |
| InvestmentCompanyPortfolioTurnover | 232% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $55,382,988 # of Portfolio Holdings 458 Portfolio Turnover Rate 232% Total Advisory Fees Paid $140,742 |
| Holdings [Text Block] | Sector Breakdown Value Value Governments - Treasuries 46.2% Industrial 25.4% Financial Institutions 17.5% Agency Fixed Rate 30-Year 6.5% Utility 2.4% Agency Fixed Rate 15-Year 0.2% Short-Term Investments 7.6% Other assets less liabilities - |
| Material Fund Change [Text Block] | |
| C000245884 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Corporate Bond ETF |
| Trading Symbol | EYEG |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Corporate Bond ETF (the “Fund”) for the period of December 13, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/EYEG-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/EYEG-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Corporate Bond ETF $30 0.30% |
| Expenses Paid, Amount | $ 30 |
| Expense Ratio, Percent | 0.30% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? Since inception, the Fund has outperformed the Bloomberg US Corporate Bond Index (the “benchmark”). Security selection among investment-grade corporate bonds was the largest contributor, relative to the benchmark. Overall yield-curve positioning detracted, mostly from overweights to the five- to 20-year parts of the curve, which were partially offset by gains to the six-month and two-year parts of the curve. Currency decisions did not impact performance during the period. The Fund used to treasury futures to hedge duration. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Corporate Bond ETF Bloomberg U.S. Corporate Bond Index 12/23 $10,000 $10,000 11/24 $10,845 $10,711 |
| Average Annual Return [Table Text Block] | AATR Since Inception 12/13/23 AB Corporate Bond ETF 8.24 % Bloomberg U.S. Corporate Bond Index 7.11 % |
| Performance Inception Date | Dec. 13, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 25,358,442 |
| Holdings Count | Holding | 364 |
| Advisory Fees Paid, Amount | $ 71,874 |
| InvestmentCompanyPortfolioTurnover | 175% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $25,358,442 # of Portfolio Holdings 364 Portfolio Turnover Rate 175% Total Advisory Fees Paid $71,874 |
| Holdings [Text Block] | Sector Breakdown Value Value Industrial 52.3% Financial Institutions 39.7% Utility 4.8% Short-Term Investments 2.0% Other assets less liabilities 1.2% |
| Material Fund Change [Text Block] | |
| C000240507 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Disruptors ETF |
| Trading Symbol | FWD |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Disruptors ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/FWD-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/FWD-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Disruptors ETF $79 0.65% |
| Expenses Paid, Amount | $ 79 |
| Expense Ratio, Percent | 0.65% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund outperformed the Morgan Stanley Capital International (“MSCI”) All Country World Index (“ACWI”) Growth (the “benchmark“), before sales charges. Overall security selection drove the outperformance led by selection within technology and industrials; selection within health care and real estate were the only negative sectors. Sector allocation also contributed: an underweight to consumer staples and an overweight to technology offset losses from underweight to communication services and an overweight to health care. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Disruptors ETF MSCI ACWI Index (net) MSCI ACWI Growth Index 03/23 $10,000 $10,000 $10,000 11/23 $11,546 $11,210 $11,633 11/24 $16,660 $14,138 $15,004 |
| Average Annual Return [Table Text Block] | AATR 1 Year Since Inception 03/22/23 AB Disruptors ETF 43.99 % 34.95 % MSCI ACWI Index (net) 26.12 % 22.61 % MSCI ACWI Growth Index 28.98 % 26.98 % |
| Performance Inception Date | Mar. 22, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| Performance Table Market Index Changed [Text Block] | The addition of the MSCI ACWI Index (net) broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. |
| AssetsNet | $ 488,789,797 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 2,112,143 |
| InvestmentCompanyPortfolioTurnover | 163% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $488,789,797 # of Portfolio Holdings 104 Portfolio Turnover Rate 163% Total Advisory Fees Paid $2,112,143 |
| Holdings [Text Block] | Sector Breakdown Value Value Information Technology 46.8% Industrials 16.0% Health Care 13.1% Communication Services 7.5% Consumer Discretionary 6.9% Utilities 3.3% Financials 2.8% Energy 0.9% Real Estate 0.7% Materials 0.4% Short-Term Investments 1.3% Other assets less liabilities 0.3% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets NVIDIA Corp. $20,134,592 4.1 % Tesla, Inc. $14,858,103 3.0 % Vistra Corp. $12,113,315 2.5 % GE Vernova, Inc. $9,217,369 1.9 % Oracle Corp. $8,542,565 1.7 % Amazon.com, Inc. $8,424,534 1.7 % Arista Networks, Inc. $7,943,115 1.6 % Intuitive Surgical, Inc. $7,816,724 1.6 % Netflix, Inc. $7,642,529 1.6 % Shopify, Inc. - Class A $7,174,945 1.5 % Total $103,867,791 21.2 % |
| Material Fund Change [Text Block] | |
| C000241312 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB High Yield ETF |
| Trading Symbol | HYFI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB High Yield ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/HYFI-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/HYFI-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB High Yield ETF $42 0.40% |
| Expenses Paid, Amount | $ 42 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period, the Fund underperformed the Bloomberg US Corporate HY 2% Issuer Capped Index (the “benchmark”), before sales charges. Security selection was the largest detractor, relative to the benchmark, from selections in telecommunications, services and banking, which were partially offset by gains from selections in energy. Industry allocation contributed, mainly from an overweight to banking. Yield-curve positioning also contributed, mostly from overweights to the five- and 10-year parts of the curve which partially offset losses from underweights in the six month- and two-year parts of the curve. Currency decisions did not have an impact performance during the period. During the 12-month period, the Fund utilized derivatives in the form of treasury futures to manage duration and yield-curve positioning. Currency forwards were utilized to hedge currency risk. Credit default swaps were used to maintain overall account risk relative to the benchmark and to actively take a single issuer exposure. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB High Yield ETF Bloomberg U.S. Corporate Bond Index Bloomberg U.S. Corporate HY 2% Issuer Capped Index 11/14 $10,000 $10,000 $10,000 11/15 $9,632 $10,016 $9,662 11/16 $10,639 $10,475 $10,832 11/17 $11,463 $11,120 $11,824 11/18 $11,521 $10,782 $11,867 11/19 $12,676 $12,491 $13,015 11/20 $13,725 $13,710 $13,948 11/21 $14,697 $13,637 $14,683 11/22 $13,335 $11,529 $13,368 11/23 $14,391 $11,939 $14,530 11/24 $16,244 $12,972 $16,377 |
| Average Annual Return [Table Text Block] | AATR 1 Year 5 Years 10 Years AB High Yield ETF 12.21 % 4.96 % 4.91 % Bloomberg U.S. Corporate Bond Index 8.66 % 0.76 % 2.64 % Bloomberg U.S. Corporate HY 2% Issuer Capped Index 12.71 % 4.70 % 5.06 % |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| Performance Table Market Index Changed [Text Block] | The addition of the Bloomberg U.S. Corporate Bond Index broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. |
| AssetsNet | $ 175,106,687 |
| Holdings Count | Holding | 772 |
| Advisory Fees Paid, Amount | $ 510,547 |
| InvestmentCompanyPortfolioTurnover | 75% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $175,106,687 # of Portfolio Holdings 772 Portfolio Turnover Rate 75% Total Advisory Fees Paid $510,547 |
| Holdings [Text Block] | Sector Breakdown Value Value Industrial 82.4% Financial Institutions 12.3% Utility 2.9% Technology 0.0% Consumer Staples 0.0% Financials 0.0% Industrials 0.0% Consumer Discretionary 0.0% Short-Term Investments 1.2% Other assets less liabilities 1.2% |
| Material Fund Change [Text Block] | |
| C000245885 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Tax-Aware Intermediate Municipal ETF |
| Trading Symbol | TAFM |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Tax-Aware Intermediate Municipal ETF (the “Fund”) for the period of December 13, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/TAFM-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/TAFM-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Tax-Aware Intermediate Municipal ETF $28 0.28% |
| Expenses Paid, Amount | $ 28 |
| Expense Ratio, Percent | 0.28% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? Since inception, the Fund outperformed the Bloomberg Municipal Bond Index (the “benchmark”). Industry allocation and security selection contributed to performance, relative to the benchmark. Overweights to prepay energy and not-for-profit health care contributed, while underweights to single-family housing and toll roads/transit detracted. Security selection within not-for-profit health care and electric utility contributed, while an underweight to state general obligation and an overweight to local general obligation detracted. Yield-curve positioning detracted from performance. The Fund used derivatives in the form of interest rate swaps for hedging purposes, which contributed to performance. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Tax-Aware Intermediate Municipal ETF Bloomberg Municipal Bond Index 12/23 $10,000 $10,000 11/24 $10,602 $10,433 |
| Average Annual Return [Table Text Block] | AATR Since Inception 12/13/23 AB Tax-Aware Intermediate Municipal ETF 5.81 % Bloomberg Municipal Bond Index 4.33 % |
| Performance Inception Date | Dec. 13, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 92,476,022 |
| Holdings Count | Holding | 196 |
| Advisory Fees Paid, Amount | $ 99,610 |
| InvestmentCompanyPortfolioTurnover | 9% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $92,476,022 # of Portfolio Holdings 196 Portfolio Turnover Rate 9% Total Advisory Fees Paid $99,610 |
| Holdings [Text Block] | Sector Breakdown Value Value Municipal Obligations 98.2% Short-Term Investments 1.8% Other assets less liabilities 0.0% |
| Material Fund Change [Text Block] | |
| C000245886 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Tax-Aware Long Municipal ETF |
| Trading Symbol | TAFL |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Tax-Aware Long Municipal ETF (the “Fund”) for the period of December 13, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/TAFL-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/TAFL-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Tax-Aware Long Municipal ETF $28 0.28% |
| Expenses Paid, Amount | $ 28 |
| Expense Ratio, Percent | 0.28% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? Since inception the Fund outperformed the Bloomberg Municipal Bond Index (the “benchmark”). Industry allocation and security selection, particularly allocations to state general obligation, not-for-profit health care and public higher education, contributed to performance, relative to the benchmark. Yield-curve positioning and security selection within single-family housing detracted from overall performance. The Fund used derivatives in the form of interest rate swaps and credit default swaps for hedging purposes. Interest rate swaps contributed to performance, while credit default swaps detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Tax-Aware Long Municipal ETF Bloomberg Municipal Bond Index Bloomberg 20 Year (17-22) Municipal Index 12/23 $10,000 $10,000 $10,000 11/24 $10,650 $10,433 $10,561 |
| Average Annual Return [Table Text Block] | AATR Since Inception 12/13/23 AB Tax-Aware Long Municipal ETF 6.19 % Bloomberg Municipal Bond Index 4.33 % Bloomberg 20 Year (17-22) Municipal Index 5.61 % |
| Performance Inception Date | Dec. 13, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 29,526,762 |
| Holdings Count | Holding | 82 |
| Advisory Fees Paid, Amount | $ 75,051 |
| InvestmentCompanyPortfolioTurnover | 12% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $29,526,762 # of Portfolio Holdings 82 Portfolio Turnover Rate 12% Total Advisory Fees Paid $75,051 |
| Holdings [Text Block] | Sector Breakdown Value Value Municipal Obligations 98.5% Short-Term Investments 0.9% Other assets less liabilities 0.6% |
| Material Fund Change [Text Block] | |
| C000237018 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Tax-Aware Short Duration Municipal ETF |
| Trading Symbol | TAFI |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Tax-Aware Short Duration Municipal ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/TAFI-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/TAFI-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Tax-Aware Short Duration Municipal ETF $28 0.27% |
| Expenses Paid, Amount | $ 28 |
| Expense Ratio, Percent | 0.27% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period, the Fund outperformed the Bloomberg 1-5 Year Municipal Bond Index (the “benchmark”). Industry allocation and security selection, particularly allocation to corporate financials, state general obligation and miscellaneous revenue contributed to performance, relative to the benchmark. Yield-curve positioning detracted from performance. The Fund used derivatives in the form of interest rate swaps for hedging purposes which added to performance. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Average Annual Return [Table Text Block] | AATR 1 Year Since Inception 09/14/22 AB Tax-Aware Short Duration Municipal ETF 4.14 % 3.50 % Bloomberg Municipal Bond Index 4.93 % 4.64 % Bloomberg 1-5 Year Municipal Bond Index 3.39 % 2.91 % |
| Performance Inception Date | Sep. 14, 2022 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| Performance Table Market Index Changed [Text Block] | The addition of the Bloomberg Municipal Bond Index broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. |
| Material Change Description [Text Block] | AB Tax-Aware Short Duration Municipal ETF Bloomberg Municipal Bond Index Bloomberg 1-5 Year Municipal Bond Index 09/22 $10,000 $10,000 $10,000 11/22 $10,022 $10,106 $10,031 11/23 $10,364 $10,539 $10,308 11/24 $10,791 $11,058 $10,657 |
| AssetsNet | $ 650,593,636 |
| Holdings Count | Holding | 418 |
| Advisory Fees Paid, Amount | $ 1,331,301 |
| InvestmentCompanyPortfolioTurnover | 29% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $650,593,636 # of Portfolio Holdings 418 Portfolio Turnover Rate 29% Total Advisory Fees Paid $1,331,301 |
| Holdings [Text Block] | Credit Rating Breakdown Footnote Reference * Value Value AAA 6.8% AA 34.8% A 30.5% BBB 7.9% BB 3.1% B 0.9% A-1+ 0.6% A-1 0.9% SP-1+ 1.3% SP-1 1.4% Pre-refunded 7.9% Not Rated 3.9% Footnote Description Footnote * The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in municipal securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the "Adviser"). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. |
| Credit Ratings Selection [Text Block] | The Fund’s quality rating breakdown is expressed as a percentage of the Fund’s total investments in municipal securities and may vary over time. The quality ratings are determined by using the S&P Global Ratings (“S&P”), Moody’s Investors Services, Inc. (“Moody’s”) and Fitch Ratings, Ltd. (“Fitch”). The Fund considers the credit ratings issued by S&P, Moody’s and Fitch and uses the highest rating issued by the agencies. These ratings are a measure of the quality and safety of a bond or portfolio, based on the issuer’s financial condition. AAA is the highest (best) and D is the lowest (worst). If applicable, the pre-refunded category includes bonds which are secured by U.S. Government securities and therefore are deemed high-quality investment grade by AllianceBernstein L.P. (the "Adviser"). If applicable, Not Applicable (N/A) includes non-credit worthy investments, such as equities, currency contracts, futures and options. If applicable, the Not Rated category includes bonds that are not rated by a nationally recognized statistical rating organization. The Adviser evaluates the creditworthiness of non-rated securities based on a number of factors including, but not limited to, cash flows, enterprise value and economic environment. |
| Material Fund Change [Text Block] | |
| C000237019 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB Ultra Short Income ETF |
| Trading Symbol | YEAR |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB Ultra Short Income ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/YEAR-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/YEAR-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB Ultra Short Income ETF $25 0.24% |
| Expenses Paid, Amount | $ 25 |
| Expense Ratio, Percent | 0.24% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period, the Fund outperformed the FTSE 3-Month US T-Bill Index (the “benchmark”), before sales charges. Sector allocation contributed to relative performance, from overweights to investment-grade corporate bonds and asset-backed securities. Yield-curve positioning was a minor detractor to overall performance. During the 12-month period, the Fund used derivatives in the form of futures for hedging and investment purposes, which had no material impact |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB Ultra Short Income ETF Bloomberg U.S. Aggregate Bond Index FTSE 3-Month US T-Bill Index 09/22 $10,000 $10,000 $10,000 11/22 $10,046 $9,942 $10,065 11/23 $10,616 $10,059 $10,580 11/24 $11,243 $10,750 $11,165 |
| Average Annual Return [Table Text Block] | AATR 1 Year Since Inception 09/14/22 AB Ultra Short Income ETF 5.87 % 5.43 % Bloomberg U.S. Aggregate Bond Index 6.88 % 3.32 % FTSE 3-Month US T-Bill Index 5.53 % 5.10 % |
| Performance Inception Date | Sep. 14, 2022 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| Performance Table Market Index Changed [Text Block] | The addition of the Bloomberg U.S. Aggregate Bond Index broad-based benchmark provides a comparison of the Fund's performance against the broader market as regulatorily required. |
| AssetsNet | $ 1,143,129,074 |
| Holdings Count | Holding | 190 |
| Advisory Fees Paid, Amount | $ 2,360,963 |
| InvestmentCompanyPortfolioTurnover | 59% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $1,143,129,074 # of Portfolio Holdings 190 Portfolio Turnover Rate 59% Total Advisory Fees Paid $2,360,963 |
| Holdings [Text Block] | Sector Breakdown Value Value Governments - Treasuries 34.1% Financial Institutions 25.9% Industrial 17.7% Other ABS - Fixed Rate 5.6% Autos - Fixed Rate 4.4% Utility 2.4% Credit Cards - Fixed Rate 0.9% Short-Term Investments 8.7% Other assets less liabilities 0.3% |
| Material Fund Change [Text Block] | |
| C000240508 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB US High Dividend ETF |
| Trading Symbol | HIDV |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB US High Dividend ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/HIDV-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/HIDV-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB US High Dividend ETF $53 0.45% |
| Expenses Paid, Amount | $ 53 |
| Expense Ratio, Percent | 0.45% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period, the Fund out performed Standarad & Poor's ("S&P") 500 Total Return Index (the "benchmark"). Both security and sector selection contributed, relative to the benchmark. Within security selection, positions within Broadcom and Unum were the largest contributors, while holdings within Civitas Resources and LyondellBasell detracted the most. Overweights to utilities and financials contributed, while an underweight to technology and an overweight to materials detracted from overall performance. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB US High Dividend ETF S&P 500 Index 03/23 $10,000 $10,000 11/23 $11,374 $11,541 11/24 $15,585 $15,452 |
| Average Annual Return [Table Text Block] | AATR 1 Year Since Inception 03/22/23 AB US High Dividend ETF 36.89 % 29.83 % S&P 500 Index 33.89 % 29.20 % |
| Performance Inception Date | Mar. 22, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 25,457,354 |
| Holdings Count | Holding | 108 |
| Advisory Fees Paid, Amount | $ 61,235 |
| InvestmentCompanyPortfolioTurnover | 175% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $25,457,354 # of Portfolio Holdings 108 Portfolio Turnover Rate 175% Total Advisory Fees Paid $61,235 |
| Holdings [Text Block] | Sector Breakdown Value Value Information Technology 27.0% Financials 19.2% Health Care 8.9% Communication Services 8.5% Consumer Discretionary 8.4% Consumer Staples 6.6% Real Estate 6.2% Materials 4.5% Industrials 3.6% Utilities 3.4% Energy 3.3% Short-Term Investments 0.2% Other assets less liabilities 0.2% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Apple, Inc. $1,852,361 7.3 % NVIDIA Corp. $1,714,715 6.7 % Microsoft Corp. $1,405,887 5.5 % Amazon.com, Inc. $759,006 3.0 % Alphabet, Inc. - Class A $480,494 1.9 % Meta Platforms, Inc. - Class A $439,929 1.7 % Netflix, Inc. $402,612 1.6 % Oracle Corp. $341,954 1.3 % Merck & Co., Inc. $335,209 1.3 % Tesla, Inc. $326,521 1.3 % Total $8,058,688 31.6 % |
| Material Fund Change [Text Block] | |
| C000241953 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB US Large Cap Strategic Equities ETF |
| Trading Symbol | LRGC |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB US Large Cap Strategic Equities ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/LRGC-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/LRGC-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB US Large Cap Strategic Equities ETF $56 0.48% |
| Expenses Paid, Amount | $ 56 |
| Expense Ratio, Percent | 0.48% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund outperformed the Standard & Poor’s (“S&P”) 500 Index (the "benchmark"), before sales charges. Overall security selection was positive, while sector allocation was negative. Security selection within consumer staples and industrials added to gains, while selection within consumer discretionary and health care detracted. In terms of sector allocation, gains from an overweight to communication services and an underweight to energy were offset by an overweight to health care and an underweight to consumer discretionary, which detracted. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB US Large Cap Strategic Equities ETF S&P 500 Index 09/23 $10,000 $10,000 11/23 $10,392 $10,313 11/24 $13,954 $13,808 |
| Average Annual Return [Table Text Block] | AATR 1 Year Since Inception 09/20/23 AB US Large Cap Strategic Equities ETF 34.20 % 32.02 % S&P 500 Index 33.89 % 30.85 % |
| Performance Inception Date | Sep. 20, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 259,957,424 |
| Holdings Count | Holding | 72 |
| Advisory Fees Paid, Amount | $ 610,152 |
| InvestmentCompanyPortfolioTurnover | 19% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $259,957,424 # of Portfolio Holdings 72 Portfolio Turnover Rate 19% Total Advisory Fees Paid $610,152 |
| Holdings [Text Block] | Sector Breakdown Value Value Information Technology 29.1% Financials 13.6% Health Care 12.3% Communication Services 11.9% Consumer Discretionary 8.0% Industrials 7.9% Consumer Staples 5.8% Energy 3.7% Materials 2.8% Real Estate 1.6% Utilities 1.5% Short-Term Investments 1.7% Other assets less liabilities 0.1% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Microsoft Corp. $19,507,955 7.5 % NVIDIA Corp. $18,422,504 7.1 % Alphabet, Inc. - Class C $11,884,176 4.6 % Apple, Inc. $11,819,034 4.5 % Amazon.com, Inc. $10,999,460 4.2 % Visa, Inc. - Class A $9,418,371 3.6 % Meta Platforms, Inc. - Class A $8,837,062 3.4 % UnitedHealth Group, Inc. $7,900,259 3.0 % Walmart, Inc. $6,295,088 2.4 % Oracle Corp. $5,711,741 2.2 % Total $110,795,650 42.5 % |
| Material Fund Change [Text Block] | |
| C000240509 | |
| Shareholder Report [Line Items] | |
| Fund Name | AB US Low Volatility Equity ETF |
| Trading Symbol | LOWV |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the AB US Low Volatility Equity ETF (the “Fund”) for the period of December 1, 2023 to November 30, 2024. |
| Shareholder Report Annual or Semi-Annual | Annual Shareholder Report |
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.abfunds.com/link/AB/LOWV-A. You can also request this information by contacting us at (800) 227 4618. |
| Additional Information Phone Number | (800) 227 4618 |
| Additional Information Website | https://www.abfunds.com/link/AB/LOWV-A |
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment) Fund Name Cost of a $10,000 investment Costs paid as a percentage of a $10,000 investment AB US Low Volatility Equity ETF $54 0.48% |
| Expenses Paid, Amount | $ 54 |
| Expense Ratio, Percent | 0.48% |
| Factors Affecting Performance [Text Block] | How did the Fund perform last year? What affected the Fund’s performance? During the 12-month period ended November 30, 2024, the Fund underperformed the Standard & Poor's (“S&P”) 500 Index (the “benchmark”). Overall security selection drove the underperformance. Selection within technology and financials detracted the most, while selection within health care and consumer staples contributed and offset some losses. Sector allocation was also negative. Gains from underweights to materials and energy were offset by losses from overweights to health care and utilities. |
| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. |
| Line Graph [Table Text Block] | AB US Low Volatility Equity ETF S&P 500 Index 03/23 $10,000 $10,000 11/23 $11,609 $11,541 11/24 $14,690 $15,452 |
| Average Annual Return [Table Text Block] | AATR 1 Year Since Inception 03/22/23 AB US low Volatility Equity ETF 26.47 % 25.41 % S&P 500 Index 33.89 % 29.20 % |
| Performance Inception Date | Mar. 22, 2023 |
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. |
| AssetsNet | $ 76,717,855 |
| Holdings Count | Holding | 79 |
| Advisory Fees Paid, Amount | $ 203,598 |
| InvestmentCompanyPortfolioTurnover | 30% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Net Assets $76,717,855 # of Portfolio Holdings 79 Portfolio Turnover Rate 30% Total Advisory Fees Paid $203,598 |
| Holdings [Text Block] | Sector Breakdown Value Value Information Technology 29.4% Financials 16.3% Health Care 13.0% Industrials 10.0% Communication Services 9.3% Consumer Discretionary 8.2% Consumer Staples 6.5% Energy 2.2% Utilities 2.1% Real Estate 1.1% Materials 1.1% Short-Term Investments 0.7% Other assets less liabilities 0.1% |
| Largest Holdings [Text Block] | 10 Top Holdings Company U.S. $ Value % of Net Assets Microsoft Corp. $6,214,276 8.1 % Alphabet, Inc. - Class C $3,546,704 4.6 % Apple, Inc. $3,081,255 4.0 % Broadcom, Inc. $2,406,402 3.1 % Fiserv, Inc. $1,920,584 2.5 % AbbVie, Inc. $1,686,614 2.2 % NVIDIA Corp. $1,652,779 2.2 % UnitedHealth Group, Inc. $1,621,301 2.1 % Oracle Corp. $1,495,540 1.9 % Visa, Inc. - Class A $1,479,931 1.9 % Total $25,105,386 32.6 % |
| Material Fund Change [Text Block] |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | |||||||||||||||||
| Nov. 30, 2024 | Dec. 12, 2023 | Nov. 30, 2023 | Sep. 19, 2023 | Mar. 22, 2023 | Mar. 21, 2023 | Nov. 30, 2022 | Sep. 13, 2022 | Nov. 30, 2021 | Nov. 30, 2020 | Nov. 30, 2019 | Dec. 12, 2018 | Nov. 30, 2018 | Nov. 30, 2017 | Nov. 30, 2016 | Nov. 30, 2015 | Jul. 29, 2015 | Nov. 30, 2014 | |
| C000247940 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB International Low Volatility Equity ETF | |||||||||||||||||
| Account Value | $ 17,037 | $ 14,366 | $ 13,185 | $ 14,713 | $ 13,296 | $ 12,900 | $ 11,710 | $ 12,093 | $ 9,734 | $ 9,760 | $ 10,000 | |||||||
| C000247934 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Short Duration High Yield ETF | |||||||||||||||||
| Account Value | $ 14,647 | 13,286 | 12,221 | 13,152 | 12,677 | 12,188 | 11,305 | 11,235 | 10,724 | 10,033 | $ 10,000 | |||||||
| C000247935 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Short Duration Income ETF | |||||||||||||||||
| Account Value | $ 11,673 | 10,914 | 10,392 | 11,106 | 11,049 | 10,704 | $ 10,000 | |||||||||||
| C000245882 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Conservative Buffer ETF | |||||||||||||||||
| Account Value | $ 11,220 | $ 10,000 | ||||||||||||||||
| C000245883 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Core Plus Bond ETF | |||||||||||||||||
| Account Value | $ 10,618 | 10,000 | ||||||||||||||||
| C000245884 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Corporate Bond ETF | |||||||||||||||||
| Account Value | $ 10,845 | 10,000 | ||||||||||||||||
| C000240507 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Disruptors ETF | |||||||||||||||||
| Account Value | $ 16,660 | 11,546 | $ 10,000 | |||||||||||||||
| C000241312 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB High Yield ETF | |||||||||||||||||
| Account Value | $ 16,244 | 14,391 | 13,335 | 14,697 | 13,725 | 12,676 | 11,521 | 11,463 | 10,639 | 9,632 | 10,000 | |||||||
| C000245885 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Tax-Aware Intermediate Municipal ETF | |||||||||||||||||
| Account Value | $ 10,602 | 10,000 | ||||||||||||||||
| C000245886 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Tax-Aware Long Municipal ETF | |||||||||||||||||
| Account Value | $ 10,650 | 10,000 | ||||||||||||||||
| C000237018 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Tax-Aware Short Duration Municipal ETF | |||||||||||||||||
| Account Value | $ 10,791 | 10,364 | 10,022 | $ 10,000 | ||||||||||||||
| C000237019 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB Ultra Short Income ETF | |||||||||||||||||
| Account Value | $ 11,243 | 10,616 | 10,046 | 10,000 | ||||||||||||||
| C000240508 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB US High Dividend ETF | |||||||||||||||||
| Account Value | $ 15,585 | 11,374 | 10,000 | |||||||||||||||
| C000241953 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB US Large Cap Strategic Equities ETF | |||||||||||||||||
| Account Value | $ 13,954 | 10,392 | $ 10,000 | |||||||||||||||
| C000240509 | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | AB US Low Volatility Equity ETF | |||||||||||||||||
| Account Value | $ 14,690 | 11,609 | $ 10,000 | |||||||||||||||
| AllianceBernstein Index: MSCI EAFE Index (net) | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index (net) | |||||||||||||||||
| Account Value | $ 15,920 | 14,655 | 13,042 | 14,515 | 13,104 | 12,319 | 10,956 | 11,901 | 9,351 | 9,706 | $ 10,000 | |||||||
| Alliance Bernstein Index:Bloomberg US Corporate Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | |||||||||||||||||
| Account Value | $ 12,972 | 11,939 | 11,529 | 13,637 | 13,710 | 12,491 | 10,782 | 11,120 | 10,475 | 10,016 | 10,000 | |||||||
| AllianceBernstein Index: Bloomberge US Aggregate Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||
| Account Value | $ 10,989 | 9,580 | 9,468 | 10,863 | 10,990 | 10,244 | 10,000 | |||||||||||
| AllianceBernstein Index: S&P 500 Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||
| Account Value | $ 13,165 | 10,000 | ||||||||||||||||
| AllianceBernstein Index: Bloomberge US Aggregate Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||
| Account Value | $ 10,561 | 10,000 | ||||||||||||||||
| Alliance Bernstein Index:Bloomberg US Corporate Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | |||||||||||||||||
| Account Value | $ 10,711 | 10,000 | ||||||||||||||||
| AllianceBernstein Index: MSCI ACWI Index (net) | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index (net) | |||||||||||||||||
| Account Value | $ 14,138 | 11,210 | 10,000 | |||||||||||||||
| Alliance Bernstein Index:Bloomberg US Corporate Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | |||||||||||||||||
| Account Value | $ 12,972 | 11,939 | 11,529 | 13,637 | 13,710 | 12,491 | 10,782 | 11,120 | 10,475 | 10,016 | 10,000 | |||||||
| AllianceBernstein Index: Bloomberg Municipal Bond | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | |||||||||||||||||
| Account Value | $ 10,433 | 10,000 | ||||||||||||||||
| AllianceBernstein Index: Bloomberg Municipal Bond | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | |||||||||||||||||
| Account Value | $ 10,433 | 10,000 | ||||||||||||||||
| AllianceBernstein Index: Bloomberg Municipal Bond | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | |||||||||||||||||
| Account Value | $ 11,058 | 10,539 | 10,106 | 10,000 | ||||||||||||||
| AllianceBernstein Index: Bloomberge US Aggregate Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | |||||||||||||||||
| Account Value | $ 10,750 | 10,059 | 9,942 | 10,000 | ||||||||||||||
| AllianceBernstein Index: S&P 500 Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||
| Account Value | $ 15,452 | 11,541 | 10,000 | |||||||||||||||
| AllianceBernstein Index: S&P 500 Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||
| Account Value | $ 13,808 | 10,313 | $ 10,000 | |||||||||||||||
| AllianceBernstein Index: S&P 500 Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500 Index | |||||||||||||||||
| Account Value | $ 15,452 | 11,541 | $ 10,000 | |||||||||||||||
| Alliance Bernstein Index: Bloomberg US High Yield 1-5 Year Cash Pay 2% Total Return Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. High Yield 1-5 Year Cash Pay 2% Total Return Index | |||||||||||||||||
| Account Value | $ 16,216 | 14,465 | 13,337 | 13,930 | 13,075 | 12,509 | 11,843 | 11,541 | 10,697 | 9,590 | 10,000 | |||||||
| Alliance Bernstein Index: Bloomberg 1-5 Year US Government/Credit Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-5 Year U.S. Government/Credit Index | |||||||||||||||||
| Account Value | $ 11,302 | 10,707 | 10,369 | 10,995 | 11,067 | 10,565 | $ 10,000 | |||||||||||
| AllianceBernstein Index: MSCI ACWI Growth Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI Growth Index | |||||||||||||||||
| Account Value | $ 15,004 | 11,633 | $ 10,000 | |||||||||||||||
| AllianceBernstein Index: Bloomberg U.S. Corporate HY 2% Issuer Capped Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate HY 2% Issuer Capped Index | |||||||||||||||||
| Account Value | $ 16,377 | 14,530 | 13,368 | $ 14,683 | $ 13,948 | $ 13,015 | $ 11,867 | $ 11,824 | $ 10,832 | $ 9,662 | $ 10,000 | |||||||
| AllianceBernstein Index: Bloomberg 20 Year (17-22) Municipal Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 20 Year (17-22) Municipal Index | |||||||||||||||||
| Account Value | $ 10,561 | $ 10,000 | ||||||||||||||||
| AllianceBernstein Index: Bloomberg 1-5 Year Municipal Bond Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | Bloomberg 1-5 Year Municipal Bond Index | |||||||||||||||||
| Account Value | $ 10,657 | 10,308 | 10,031 | 10,000 | ||||||||||||||
| AllianceBernstein Index: FTSE 3-Month US T-Bill Index | ||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||
| Line Graph and Table Measure Name | FTSE 3-Month US T-Bill Index | |||||||||||||||||
| Account Value | $ 11,165 | $ 10,580 | $ 10,065 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 14 Months Ended | 20 Months Ended | 27 Months Ended | 60 Months Ended | 72 Months Ended | 112 Months Ended | 120 Months Ended | |
| Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | Nov. 30, 2024 | |
| C000247940 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB International Low Volatility Equity ETF | ||||||||
| C000247934 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Short Duration High Yield ETF | ||||||||
| C000247935 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Short Duration Income ETF | ||||||||
| C000245882 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Conservative Buffer ETF | ||||||||
| C000245883 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Core Plus Bond ETF | ||||||||
| C000245884 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Corporate Bond ETF | ||||||||
| C000240507 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Disruptors ETF | ||||||||
| C000241312 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB High Yield ETF | ||||||||
| C000245885 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Tax-Aware Intermediate Municipal ETF | ||||||||
| C000245886 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Tax-Aware Long Municipal ETF | ||||||||
| C000237018 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Tax-Aware Short Duration Municipal ETF | ||||||||
| C000237019 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB Ultra Short Income ETF | ||||||||
| C000240508 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB US High Dividend ETF | ||||||||
| C000241953 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB US Large Cap Strategic Equities ETF | ||||||||
| C000240509 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | AB US Low Volatility Equity ETF | ||||||||
| Without Sales Load [Member] | C000247940 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 18.59% | 5.72% | 5.87% | ||||||
| Without Sales Load [Member] | C000247934 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 10.25% | 3.67% | 3.89% | ||||||
| Without Sales Load [Member] | C000247935 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 6.95% | 1.68% | 2.63% | ||||||
| Without Sales Load [Member] | C000245882 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 12.31% | ||||||||
| Without Sales Load [Member] | C000245883 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 6.19% | ||||||||
| Without Sales Load [Member] | C000245884 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 8.24% | ||||||||
| Without Sales Load [Member] | C000240507 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 43.99% | 34.95% | |||||||
| Without Sales Load [Member] | C000241312 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 12.21% | 4.96% | 4.91% | ||||||
| Without Sales Load [Member] | C000245885 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 5.81% | ||||||||
| Without Sales Load [Member] | C000245886 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 6.19% | ||||||||
| Without Sales Load [Member] | C000237018 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 4.14% | 3.50% | |||||||
| Without Sales Load [Member] | C000237019 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 5.87% | 5.43% | |||||||
| Without Sales Load [Member] | C000240508 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 36.89% | 29.83% | |||||||
| Without Sales Load [Member] | C000241953 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 34.20% | 32.02% | |||||||
| Without Sales Load [Member] | C000240509 | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Average Annual Return, Percent | 26.47% | 25.41% | |||||||
| AllianceBernstein Index: MSCI EAFE Index (net) | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index (net) | ||||||||
| Average Annual Return, Percent | 11.88% | 5.89% | (3.49%) | ||||||
| Alliance Bernstein Index:Bloomberg US Corporate Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | ||||||||
| Average Annual Return, Percent | 8.66% | 0.76% | 2.64% | ||||||
| AllianceBernstein Index: Bloomberge US Aggregate Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||
| Average Annual Return, Percent | 6.88% | (0.01%) | 1.59% | ||||||
| AllianceBernstein Index: S&P 500 Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||
| Average Annual Return, Percent | 31.65% | ||||||||
| AllianceBernstein Index: Bloomberge US Aggregate Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||
| Average Annual Return, Percent | 5.61% | ||||||||
| Alliance Bernstein Index:Bloomberg US Corporate Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | ||||||||
| Average Annual Return, Percent | 7.11% | ||||||||
| AllianceBernstein Index: MSCI ACWI Index (net) | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | MSCI ACWI Index (net) | ||||||||
| Average Annual Return, Percent | 26.12% | 22.61% | |||||||
| Alliance Bernstein Index:Bloomberg US Corporate Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate Bond Index | ||||||||
| Average Annual Return, Percent | 8.66% | 0.76% | 2.64% | ||||||
| AllianceBernstein Index: Bloomberg Municipal Bond | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||
| Average Annual Return, Percent | 4.33% | ||||||||
| AllianceBernstein Index: Bloomberg Municipal Bond | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||
| Average Annual Return, Percent | 4.33% | ||||||||
| AllianceBernstein Index: Bloomberg Municipal Bond | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg Municipal Bond Index | ||||||||
| Average Annual Return, Percent | 4.93% | 4.64% | |||||||
| AllianceBernstein Index: Bloomberge US Aggregate Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||
| Average Annual Return, Percent | 6.88% | 3.32% | |||||||
| AllianceBernstein Index: S&P 500 Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||
| Average Annual Return, Percent | 33.89% | 29.20% | |||||||
| AllianceBernstein Index: S&P 500 Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||
| Average Annual Return, Percent | 33.89% | 30.85% | |||||||
| AllianceBernstein Index: S&P 500 Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | S&P 500 Index | ||||||||
| Average Annual Return, Percent | 33.89% | 29.20% | |||||||
| Alliance Bernstein Index: Bloomberg US High Yield 1-5 Year Cash Pay 2% Total Return Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. High Yield 1-5 Year Cash Pay 2% Total Return Index | ||||||||
| Average Annual Return, Percent | 12.10% | 5.33% | 4.95% | ||||||
| Alliance Bernstein Index: Bloomberg 1-5 Year US Government/Credit Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg 1-5 Year U.S. Government/Credit Index | ||||||||
| Average Annual Return, Percent | 5.56% | 1.36% | 2.07% | ||||||
| AllianceBernstein Index: MSCI ACWI Growth Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | MSCI ACWI Growth Index | ||||||||
| Average Annual Return, Percent | 28.98% | 26.98% | |||||||
| AllianceBernstein Index: Bloomberg U.S. Corporate HY 2% Issuer Capped Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Corporate HY 2% Issuer Capped Index | ||||||||
| Average Annual Return, Percent | 12.71% | 4.70% | 5.06% | ||||||
| AllianceBernstein Index: Bloomberg 20 Year (17-22) Municipal Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg 20 Year (17-22) Municipal Index | ||||||||
| Average Annual Return, Percent | 5.61% | ||||||||
| AllianceBernstein Index: Bloomberg 1-5 Year Municipal Bond Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | Bloomberg 1-5 Year Municipal Bond Index | ||||||||
| Average Annual Return, Percent | 3.39% | 2.91% | |||||||
| AllianceBernstein Index: FTSE 3-Month US T-Bill Index | |||||||||
| Average Annual Return [Line Items] | |||||||||
| Line Graph and Table Measure Name | FTSE 3-Month US T-Bill Index | ||||||||
| Average Annual Return, Percent | 5.53% | 5.10% | |||||||
| Shareholder Report, Holdings (Details) | Nov. 30, 2024 |
| C000247940 | Novo Nordisk A/S, Class B - FR_BP6KMJ909 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000247940 | Shell PLC - FR_BP6MXD906 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| C000247940 | Constellation Software, Inc./Canada - FR_21037X951 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000247940 | Oversea-Chinese Banking Corp., Ltd. - FR_B0F9V2906 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| C000247940 | RELX PLC (London) - FR_B2B0DG904 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000247940 | SAP SE - FR_484628904 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000247940 | NatWest Group PLC - FR_BM8PJY904 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000247940 | London Stock Exchange Group PLC - FR_B0SWJX907 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000247940 | Tesco PLC - FR_BLGZ98903 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000247940 | Prysmian SpA - FR_B1W4V6907 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000247940 | Country SummaryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 20.60% |
| C000247940 | Country SummaryJapan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.80% |
| C000247940 | Country SummaryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| C000247940 | Country SummaryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000247940 | Country SummaryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| C000247940 | Country SummaryCanada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| C000247940 | Country SummaryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| C000247940 | Country SummarySingapore | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000247940 | Country SummaryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000247940 | Country SummarySwitzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000247940 | Country SummaryDenmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000247940 | Country SummarySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000247940 | Country SummaryFinland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000247940 | Country SummaryAustralia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000247940 | Country SummaryTaiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.80% |
| C000247940 | Country Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000247940 | 10975392 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000247940 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 26% |
| C000247940 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.80% |
| C000247940 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.70% |
| C000247940 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.20% |
| C000247940 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000247940 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.60% |
| C000247940 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000247940 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000247940 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000247940 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000247940 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000247940 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000247940 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000247934 | Country SummaryUnited Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000247934 | Country SummaryNetherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000247934 | Country SummaryGermany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000247934 | Country SummaryUnited States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 71.30% |
| C000247934 | Country SummaryCanada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000247934 | Country SummaryItaly | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000247934 | Country SummaryFrance | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000247934 | Country SummarySpain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000247934 | Country SummaryAustralia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000247934 | Country Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000247934 | 10957118 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000247934 | 10956924 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000247934 | Country SummaryLuxembourg | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000247934 | Country SummaryIreland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000247934 | Country SummaryIsrael | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000247934 | Country SummaryHong Kong | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000247934 | Country SummaryPuerto Rico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000247934 | AssetCorporates - Non-Investment Grade | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 74% |
| C000247934 | AssetCorporates - Investment Grade | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15% |
| C000247934 | AssetEmerging Markets - Corporate Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000247934 | AssetBank Loans | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000247934 | AssetEmerging Markets - Sovereigns | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000247934 | AssetCollateralized Loan Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000247934 | AssetQuasi-Sovereigns | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000247934 | AssetCommercial Mortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000247935 | Security TypeCorporates - Investment Grade | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 36.90% |
| C000247935 | Security TypeGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.30% |
| C000247935 | Security TypeAsset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| C000247935 | Security TypeCollateralized Loan Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.20% |
| C000247935 | Security TypeCorporates - Non-Investment Grade | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000247935 | Security TypeCommercial Mortgage-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000247935 | Security TypeEmerging Markets - Sovereigns | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| C000247935 | Security TypeCollateralized Mortgage Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000247935 | Security TypeBank Loans | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000247935 | Others | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000247935 | Security Type Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| C000245882 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| C000245882 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (1.90%) |
| C000245882 | SectorOptions on Equity Indices | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 101.40% |
| C000245883 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| C000245883 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | (5.80%) |
| C000245883 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.20% |
| C000245883 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.40% |
| C000245883 | SectorFinancial Institutions | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.50% |
| C000245883 | SectorAgency Fixed Rate 30-Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000245883 | SectorUtility | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000245883 | SectorAgency Fixed Rate 15-Year | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000245884 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000245884 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000245884 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 52.30% |
| C000245884 | SectorFinancial Institutions | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.70% |
| C000245884 | SectorUtility | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| C000240507 | NVIDIA Corp. - FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| C000240507 | Tesla, Inc. - FR_88160R101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000240507 | Vistra Corp. - FR_92840M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000240507 | GE Vernova, Inc. - FR_36828A101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240507 | Oracle Corp. - FR_68389X105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000240507 | Amazon.com, Inc. - FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000240507 | Arista Networks, Inc. - FR_040413106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000240507 | Intuitive Surgical, Inc. - FR_46120E602 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000240507 | Netflix, Inc. - FR_64110L106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000240507 | Shopify, Inc., Class A - FR_82509L107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000240507 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000240507 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16% |
| C000240507 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 46.80% |
| C000240507 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.10% |
| C000240507 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.90% |
| C000240507 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| C000240507 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000240507 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000240507 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000240507 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000240507 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000240507 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000241312 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000241312 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000241312 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000241312 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000241312 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000241312 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| C000241312 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 82.40% |
| C000241312 | SectorFinancial Institutions | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000241312 | SectorUtility | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| C000241312 | SectorTechnology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000245885 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| C000245885 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| C000245885 | SectorMunicipal Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.20% |
| C000245886 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000245886 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000245886 | SectorMunicipal Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98.50% |
| C000237018 | Credit Rating Other LineA-1+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| C000237018 | Credit Rating Other LineA-1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000237018 | Credit Rating Other LineSP-1+ | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000237018 | Credit Rating Other LineSP-1 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| C000237018 | Credit Rating Other LinePre-refunded | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.90% |
| C000237018 | Credit Rating Other LineNot Rated | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| C000237018 | 10918800 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000237018 | AAA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| C000237018 | AA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.80% |
| C000237018 | A | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 30.50% |
| C000237018 | BBB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.90% |
| C000237018 | BB | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000237018 | B | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000237018 | AssetCorporates - Investment Grade | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| C000237018 | AssetLocal Governments - US Municipal Bonds | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 96.20% |
| C000237018 | AssetShort-Term Municipal Notes | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000237018 | AssetCollateralized Mortgage Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000237018 | AssetAsset-Backed Securities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000237019 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.70% |
| C000237019 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| C000237019 | SectorGovernments - Treasuries | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34.10% |
| C000237019 | SectorIndustrial | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 17.70% |
| C000237019 | SectorFinancial Institutions | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 25.90% |
| C000237019 | SectorUtility | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000237019 | SectorOther ABS - Fixed Rate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| C000237019 | SectorAutos - Fixed Rate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| C000237019 | SectorCredit Cards - Fixed Rate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| C000240508 | NVIDIA Corp. - FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| C000240508 | Tesla, Inc. - FR_88160R101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000240508 | Oracle Corp. - FR_68389X105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000240508 | Amazon.com, Inc. - FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000240508 | Netflix, Inc. - FR_64110L106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000240508 | Apple, Inc. - FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| C000240508 | Microsoft Corp. - FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| C000240508 | Alphabet, Inc., Class A - FR_02079K305 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240508 | Meta Platforms, Inc., Class A - FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000240508 | Merck & Co., Inc. - FR_58933Y105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| C000240508 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.20% |
| C000240508 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000240508 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 27% |
| C000240508 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| C000240508 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.60% |
| C000240508 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.40% |
| C000240508 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| C000240508 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| C000240508 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000240508 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| C000240508 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000240508 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000240508 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| C000241953 | NVIDIA Corp. - FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| C000241953 | Oracle Corp. - FR_68389X105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000241953 | Amazon.com, Inc. - FR_023135106 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| C000241953 | Apple, Inc. - FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| C000241953 | Microsoft Corp. - FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| C000241953 | Meta Platforms, Inc., Class A - FR_30303M102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| C000241953 | Alphabet, Inc., Class C - FR_02079K107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000241953 | Visa, Inc., Class A - FR_92826C839 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| C000241953 | UnitedHealth Group, Inc. - FR_91324P102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| C000241953 | Walmart, Inc. - FR_931142103 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| C000241953 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.60% |
| C000241953 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.90% |
| C000241953 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.10% |
| C000241953 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.30% |
| C000241953 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.80% |
| C000241953 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| C000241953 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.90% |
| C000241953 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| C000241953 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| C000241953 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| C000241953 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| C000241953 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| C000241953 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| C000240509 | NVIDIA Corp. - FR_67066G104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000240509 | Oracle Corp. - FR_68389X105 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240509 | Apple, Inc. - FR_037833100 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| C000240509 | Microsoft Corp. - FR_594918104 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.10% |
| C000240509 | Alphabet, Inc., Class C - FR_02079K107 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| C000240509 | Visa, Inc., Class A - FR_92826C839 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| C000240509 | UnitedHealth Group, Inc. - FR_91324P102 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000240509 | Broadcom, Inc. - FR_11135F101 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| C000240509 | Fiserv, Inc. - FR_337738108 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| C000240509 | AbbVie, Inc. - FR_00287Y109 | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000240509 | SectorFinancials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.30% |
| C000240509 | SectorIndustrials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10% |
| C000240509 | SectorInformation Technology | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.40% |
| C000240509 | SectorHealth Care | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13% |
| C000240509 | SectorConsumer Staples | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| C000240509 | SectorConsumer Discretionary | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| C000240509 | SectorCommunication Services | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| C000240509 | SectorEnergy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| C000240509 | SectorUtilities | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| C000240509 | SectorReal Estate | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000240509 | SectorMaterials | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000240509 | SectorShort-Term Investments | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000240509 | Sector Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
