v3.25.2
Label Element Value
Franklin International Aggregate Bond ETF  
Risk/Return: oef_RiskReturnAbstract  
Risk/Return [Heading] oef_RiskReturnHeading Franklin International Aggregate Bond ETF
Objective [Heading] oef_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock

Total investment return, consistent with prudent investing, consisting of a combination of interest income and capital appreciation.

Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock

The following table describes the fees and expenses that you will incur if you buy, hold and sell shares of the Fund. You may also incur other fees, such as usual and customary brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and the Example that follows.

Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] oef_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate

higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 19.26% of the average value of its portfolio.

Portfolio Turnover, Rate oef_PortfolioTurnoverRate 19.26%
Expense Example [Heading] oef_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading] oef_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests at least 80% of its net assets in bonds and investments that provide exposure to bonds. Bonds include debt obligations of any maturity, such as bonds, notes, bills and debentures. Derivatives that provide exposure to bonds may be used to satisfy the Fund’s 80% policy.

The Fund invests predominantly in fixed and floating-rate bonds issued by governments, government agencies and governmental-related or corporate issuers located outside the U.S. Bonds may be denominated and issued in the local currency or in another currency. The Fund may also invest in securities or structured products that are linked to or derive their value from another security, asset or currency of any nation. In addition, the Fund’s assets are invested in issuers located in at least three countries (excluding the U.S.). The Fund may invest without limit in developing or emerging markets.

The Fund may invest in debt securities of any maturity or duration, and the average maturity or duration of debt securities in the Fund’s portfolio will fluctuate depending on the investment manager’s outlook on changing market, economic, and political conditions. The Fund may also invest a portion of its assets in cash or cash equivalents.

The Fund is a “non-diversified” fund, which means it generally invests a greater portion of its assets in the securities of one or more issuers and invests overall in a smaller number of issuers than a diversified fund.

Although the Fund may buy bonds rated in any category, including securities in default, it focuses on “investment grade” bonds. These are issues rated in the top four rating categories at the time of purchase by at least one independent rating agency, such as S&P Global Ratings (S&P®) or Moody’s Investors Service (Moody’s) or, if unrated, determined by the Fund’s investment manager to be of comparable quality. The Fund may invest up to 20% of its total assets in bonds that are rated below investment grade or, if unrated, determined by the investment manager to be of comparable quality. Generally, lower rated securities pay higher yields than more highly rated securities to compensate investors for the higher risk.

For purposes of pursuing its investment goal, the investment manager seeks to hedge substantially all of the Fund’s foreign currency exposure using currency related derivatives, including currency and cross currency forwards and currency futures contracts. The Fund expects to maintain extensive positions in currency

related derivative instruments as a hedging technique or to implement a currency investment strategy, which exposes a large amount of the Fund’s assets to obligations under these instruments. The results of such transactions may represent, from time to time, a large component of the Fund’s investment returns. The use of these derivative transactions may allow the fund to obtain net long or net negative (short) exposure to selected currencies. The Fund may also enter into various other transactions involving derivatives, including interest rate/bond futures contracts and interest rate swap agreements. These derivative instruments may be used for hedging purposes.

When choosing investments for the Fund, the investment manager allocates the Fund’s assets based upon its assessment of changing market, political and economic conditions. It considers various factors, including evaluation of interest rates, currency exchange rate changes and credit risks. The investment manager may utilize quantitative models to evaluate investment opportunities as part of the portfolio construction process for the Fund. Quantitative models are proprietary systems that rely on mathematical computations to identify investment opportunities.

The investment manager may consider selling a security when it believes the security has become fully valued due to either its price appreciation or changes in the issuer’s fundamentals, or when the investment manager believes another security is a more attractive investment opportunity.

Strategy Portfolio Concentration [Text] oef_StrategyPortfolioConcentration Under normal market conditions, the Fund invests at least 80% of its net assets in bonds and investments that provide exposure to bonds.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance and an additional index with characteristics relevant to the Fund. On March 1, 2020, the Fund changed its investment strategies to seek to hedge substantially all of the Fund's foreign currency exposure and the performance for periods prior to that date is attributable to the Fund's performance before the strategy change. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Performance Availability Phone [Text] oef_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] oef_PerformanceAvailabilityWebSiteAddress franklintempleton.com
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] oef_BarChartHeading Annual Total Returns
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
   

Best Quarter:

2023, Q4

5.42%

Worst Quarter:

2022, Q1

-3.31%

 

As of June 30, 2025, the Fund’s year-to-date return was 1.48%.

Performance Table Heading oef_PerformanceTableHeading Average Annual Total Returns For periods ended December 31, 2024
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes (index reflects no deduction for fees, expenses or taxes)
Franklin International Aggregate Bond ETF | Principal Risks  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Principal Risks

You could lose money by investing in the Fund. ETF shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund’s net asset value (NAV), trading price, yield, total return and ability to meet its investment goal. Unlike many ETFs, the Fund is not an index-based ETF.

Franklin International Aggregate Bond ETF | Risk Lose Money [Member]  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock You could lose money by investing in the Fund.
Franklin International Aggregate Bond ETF | Foreign Securities (non-U.S.)  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Foreign Securities (non-U.S.): Investing in foreign securities typically involves different risks than investing in U.S. securities, and includes risks associated with: (i) internal and external political and economic developments – e.g., the political, economic and social policies and structures of some foreign countries may be less stable and more volatile than those in the U.S. or some foreign countries may be subject to trading restrictions or economic sanctions; diplomatic and political developments could affect the economies, industries, and securities and currency markets of the countries in which the Fund is invested, which can include rapid and adverse political changes; social instability; regional conflicts; sanctions imposed by the United States, other nations or other governmental entities, including supranational entities; terrorism; and war; (ii) trading practices – e.g., government

supervision and regulation of foreign securities and currency markets, trading systems and brokers may be less than in the U.S.; (iii) availability of information – e.g., foreign issuers may not be subject to the same disclosure, accounting and financial reporting standards and practices as U.S. issuers; (iv) limited markets – e.g., the securities of certain foreign issuers may be less liquid (harder to sell) and more volatile; and (v) currency exchange rate fluctuations and policies – e.g., fluctuations may negatively affect investments denominated in foreign currencies and any income received or expenses paid by the Fund in that foreign currency. The risks of foreign investments may be greater in developing or emerging market countries.

Franklin International Aggregate Bond ETF | Currency Management Strategies  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Currency Management Strategies: Currency management strategies may substantially change the Fund’s exposure to currency exchange rates and could result in losses to the Fund if currencies do not perform as the investment manager expects. In addition, currency management strategies, to the extent that they reduce the Fund’s exposure to currency risks, also reduce the Fund’s ability to benefit from favorable changes in currency exchange rates. Using currency management strategies for purposes other than hedging further increases the Fund’s exposure to foreign investment losses. Currency markets generally are not as regulated as securities markets. In addition, currency rates may fluctuate significantly over short periods of time, and can reduce returns.

While the Fund’s currency hedging approach is designed to minimize the impact of currency fluctuations on Fund returns, it does not necessarily eliminate the Fund’s exposure to the currencies. The return of the currency related derivatives will not perfectly offset the actual fluctuations between the currencies and the U.S. dollar. In addition, the Fund will incur transaction costs in hedging its foreign currency exposure. The Fund’s exposure to the currencies may not be hedged at all times. While the Fund seeks to hedge against currency fluctuations, it is possible that a degree of currency exposure may remain even at the time a hedging transaction is implemented. Increased volatility of the U.S. dollar relative to the currencies being hedged will generally reduce the effectiveness of the Fund’s currency hedging strategy, measured on an aggregate basis. Significant differences between U.S. dollar interest rates and foreign currency interest rates may impact the effectiveness of the Fund’s currency hedging strategy.

Franklin International Aggregate Bond ETF | Sovereign Debt Securities  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Sovereign Debt Securities: Sovereign debt securities are subject to various risks in addition to those relating to debt securities and foreign investments generally, including, but not limited to, the risk that a governmental entity may be unwilling or unable to pay interest and repay principal on its sovereign debt, or otherwise meet its obligations when due because of cash flow problems, insufficient foreign reserves, the relative size of the debt service burden to the economy as a whole, the government’s policy towards principal international lenders such as the International Monetary Fund, or the political considerations to which the

government may be subject. If a sovereign debtor defaults (or threatens to default) on its sovereign debt obligations, the indebtedness may be restructured. Some sovereign debtors have in the past been able to restructure their debt payments without the approval of some or all debt holders or to declare moratoria on payments. In the event of a default on sovereign debt, the Fund may also have limited legal recourse against the defaulting government entity.

Franklin International Aggregate Bond ETF | Regional  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Regional: To the extent that the Fund invests a significant portion of its assets in a specific geographic region or a particular country, the Fund will generally have more exposure to the specific regional or country risks. In the event of economic or political turmoil or a deterioration of diplomatic relations in a region or country where a substantial portion of the Fund’s assets are invested, the Fund may experience substantial illiquidity or reduction in the value of the Fund’s investments. Adverse conditions in a certain region or country can adversely affect securities of issuers in other countries whose economies appear to be unrelated.

Franklin International Aggregate Bond ETF | European securities  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

European securities: Investments in securities of European issuers involve risks that are specific to Europe, including certain legal, regulatory, political and economic risks. Political uncertainty surrounding the European Union (EU) and its membership may increase market volatility. The financial instability of some countries in the EU, together with the risk of such instability impacting other more stable countries may increase the economic risk of investing in companies in Europe. One or more EU member states might exit the EU, placing the European currency and banking system in jeopardy. Efforts of the EU to further unify the economic and monetary policies of its members may increase the potential interdependence of the economies of the EU members and thereby increase the risk that adverse developments in one country will adversely affect the securities of issuers located in other countries.

Current uncertainty concerning the ultimate economic consequences and geopolitical effects of Russia’s military invasion of Ukraine in February 2022 and concerns regarding potential escalation in the region have resulted in increased market volatility.

Franklin International Aggregate Bond ETF | Developing Market Countries  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Developing Market Countries: The Fund’s investments in securities of issuers in developing market countries are subject to all of the risks of foreign investing generally, and have additional heightened risks due to a lack of established legal, political, business and social frameworks to support securities markets, including: delays in settling portfolio securities transactions; currency and capital controls; greater sensitivity to interest rate changes; pervasiveness of corruption and crime; currency exchange rate volatility; and inflation, deflation or currency devaluation.

Franklin International Aggregate Bond ETF | Chinese securities  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Chinese securities: There are special risks associated with investments in China, including exposure to currency fluctuations, less liquidity, expropriation, confiscatory taxation, nationalization and exchange control regulations (including

currency blockage). Inflation and rapid fluctuations in inflation and interest rates have had, and may continue to have, negative effects on the economy and securities markets of China. China is deemed by the investment manager to be a developing or emerging markets country, which means an investment in this country has more heightened risks than general foreign investing due to a lack of established legal, political, business and social frameworks and accounting standards or auditor oversight in the country to support securities markets as well as the possibility for more widespread corruption and fraud. In addition, the standards for environmental, social and corporate governance matters in China also tend to be lower than such standards in more developed economies. Also, certain securities issued by companies located or operating in China, such as China A-Shares, are subject to trading restrictions, quota limitations, and clearing and settlement risks. In addition, there may be significant obstacles to obtaining information necessary for investigations into or litigation against companies located in or operating in China and shareholders may have limited legal remedies.

Trade disputes and the imposition of tariffs on goods and services can affect the Chinese economy, particularly in light of China's large export sector, as well as the global economy. Trade disputes can result in increased costs of production and reduced profitability for non-export-dependent companies that rely on imports to the extent China engages in retaliatory tariffs. Trade disputes may also lead to increased currency exchange rate volatility.

Franklin International Aggregate Bond ETF | Interest Rate  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Interest Rate: When interest rates rise, debt security prices generally fall. The opposite is also generally true: debt security prices rise when interest rates fall. Interest rate changes are influenced by a number of factors, including government policy, monetary policy, inflation expectations, perceptions of risk, and supply of and demand for bonds. In general, securities with longer maturities or durations are more sensitive to interest rate changes.

Franklin International Aggregate Bond ETF | Market  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Market: The market values of securities or other investments owned by the Fund will go up or down, sometimes rapidly or unpredictably. The market value of a security or other investment may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all investments. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise. In addition, the value of the Fund’s investments may go up or down due to general market or other conditions that are not specifically related to a particular issuer, such as: real or perceived adverse economic changes, including widespread liquidity issues and defaults in one or more industries; changes in interest, inflation or exchange rates; unexpected natural and man-made world events, such as diseases or disasters; financial, political or social disruptions, including terrorism and war; and U.S. trade disputes or other disputes with specific countries that could result in additional tariffs, trade barriers and/or investment restrictions in certain securities in those

countries. Any of these conditions can adversely affect the economic prospects of many companies, sectors, nations, regions and the market in general, in ways that cannot necessarily be foreseen.

Franklin International Aggregate Bond ETF | Credit  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Credit: An issuer of debt securities may fail to make interest payments or repay principal when due, in whole or in part. Changes in an issuer's financial strength or in a security's or government's credit rating may affect a security's value.

Franklin International Aggregate Bond ETF | Derivative Instruments  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Derivative Instruments: The performance of derivative instruments depends largely on the performance of an underlying instrument, such as a currency, security, interest rate or index, and such instruments often have risks similar to their underlying instrument, in addition to other risks. Derivative instruments involve costs and can create economic leverage in the Fund's portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as gains) in an amount that exceeds the Fund's initial investment. Other risks include illiquidity, mispricing or improper valuation of the derivative instrument, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. When a derivative is used for hedging, the change in value of the derivative may also not correlate specifically with the currency, security, interest rate or other risk being hedged. With over-the-counter derivatives, there is the risk that the other party to the transaction will fail to perform.

Franklin International Aggregate Bond ETF | High-Yield Debt Instruments  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

High-Yield Debt Instruments: Issuers of lower-rated or “high-yield” debt instruments (also known as “junk bonds”) are not as strong financially as those issuing higher credit quality debt instruments. High-yield debt instruments are generally considered predominantly speculative by the applicable rating agencies as their issuers are more likely to encounter financial difficulties because they may be more highly leveraged, or because of other considerations. In addition, high yield debt instruments generally are more vulnerable to changes in the relevant economy, such as a recession or a sustained period of rising interest rates, that could affect their ability to make interest and principal payments when due. The prices of high-yield debt instruments generally fluctuate more than those of higher credit quality. High-yield debt instruments are generally more illiquid (harder to sell) and harder to value.

Franklin International Aggregate Bond ETF | Liquidity  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Liquidity:  The trading market for a particular security or type of security or other investments in which the Fund invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the Fund’s ability to sell such securities or other investments when necessary to meet the Fund’s liquidity needs or in response to a specific economic event and will also generally lower the value of a security or other investments. Market prices for such securities or other investments may be volatile.

Franklin International Aggregate Bond ETF | Floating Rate Corporate Investments  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Floating Rate Corporate Investments: Floating rate corporate loans and corporate debt securities generally have credit ratings below investment grade and may be subject to resale restrictions. They are often issued in connection with highly leveraged transactions, and may be subject to greater credit risks than other investments including the possibility of default or bankruptcy. In addition, a secondary market in corporate loans may be subject to irregular trading activity, wide bid/ask spreads and extended trade settlement periods, which may impair the ability to accurately value existing and prospective investments and to realize in a timely fashion the full value upon the sale of a corporate loan. A significant portion of floating rate investments may be “covenant lite” loans that may contain fewer or less restrictive constraints on the borrower or other borrower-friendly characteristics.

Franklin International Aggregate Bond ETF | Credit-Linked Securities  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Credit-Linked Securities: Credit-linked securities, which may be considered to be a type of structured debt investment, represent an interest in a pool of, or are otherwise collateralized by, one or more reference securities such as corporate debt obligations or credit default swaps thereon or bank loan obligations. The Fund may lose money investing in credit-linked securities if a credit event (for example, a bankruptcy or failure to pay interest or principal or a restructuring) occurs with respect to a reference security, if the underlying securities otherwise perform poorly, or if certain counterparties fail to satisfy their obligations. The market for credit-linked securities may suddenly become illiquid, making it difficult for the Fund to sell such securities promptly at an acceptable price.

Franklin International Aggregate Bond ETF | Income  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Income: The Fund's distributions to shareholders may decline when prevailing interest rates fall, when the Fund experiences defaults on debt securities it holds or when the Fund realizes a loss upon the sale of a debt security.

Franklin International Aggregate Bond ETF | Prepayment  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Prepayment: Prepayment risk occurs when a debt security can be repaid in whole or in part prior to the security's maturity and the Fund must reinvest the proceeds it receives, during periods of declining interest rates, in securities that pay a lower rate of interest. Also, if a security has been purchased at a premium, the value of the premium would be lost in the event of prepayment. Prepayments generally increase when interest rates fall.

Franklin International Aggregate Bond ETF | Extension  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Extension: Some debt securities are subject to the risk that the debt security’s effective maturity is extended because calls or prepayments are less or slower than anticipated, particularly when interest rates rise. The market value of such security may then decline and become more interest rate sensitive.

Franklin International Aggregate Bond ETF | Focus  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Focus: To the extent that the Fund focuses on particular countries, regions, industries, sectors or types of investments from time to time, the Fund may be subject to greater risks of adverse developments in such areas of focus than a fund that invests in a wider variety of countries, regions, industries, sectors or investments.

Franklin International Aggregate Bond ETF | Non-Diversification  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Non-Diversification: Because the Fund is non-diversified, it may be more sensitive to economic, business, political or other changes affecting individual issuers or investments than a diversified fund, which may negatively impact the Fund's performance and result in greater fluctuation in the value of the Fund’s shares.

Franklin International Aggregate Bond ETF | Cash/Cash Equivalents  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Cash/Cash Equivalents: To the extent the Fund holds cash or cash equivalents rather than securities in which it primarily invests or uses to manage risk, the Fund may not achieve its investment objectives and may underperform.

Franklin International Aggregate Bond ETF | Management  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Management: The Fund is subject to management risk because it is an actively managed ETF. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.

Franklin International Aggregate Bond ETF | Cybersecurity  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Cybersecurity: Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain access to Fund assets, Fund or customer data (including private shareholder information), or proprietary information, cause the Fund, the investment manager, authorized participants, or index providers (as applicable) and listing exchanges, and/or their service providers (including, but not limited to, Fund accountants, custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality or prevent Fund investors from purchasing, redeeming shares or receiving distributions. The investment manager has limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers, and such third party service providers may have limited indemnification obligations to the Fund or the investment manager. Cybersecurity incidents may result in financial losses to the Fund and its shareholders, and substantial costs may be incurred in an effort to prevent or mitigate future cybersecurity incidents. Issuers of securities in which the Fund invests are also subject to cybersecurity risks, and the value of these securities could decline if the issuers experience cybersecurity incidents.

Because technology is frequently changing, new ways to carry out cyber attacks are always developing. Therefore, there is a chance that some risks have not been identified or prepared for, or that an attack may not be detected, which puts limitations on the Fund's ability to plan for or respond to a cyber attack. Like other funds and business enterprises, the Fund, the investment manager, and their service providers are subject to the risk of cyber incidents occurring from time to time.

Franklin International Aggregate Bond ETF | Quantitative Models  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Quantitative Models: The quantitative models that may be used by the investment manager as part of the Fund’s portfolio construction process to evaluate investment opportunities have been tested on historical price data. These models are based on the assumption that price movements in most markets display similar

patterns. There is the risk that market behavior will change and that the patterns upon which the forecasts in the models are based will weaken or disappear, which would reduce the ability of the models to generate an excess return. Further, as market dynamics shift over time, a previously highly successful model may become outdated, perhaps without the investment manager recognizing that fact before substantial losses are incurred. Successful operation of a model is also reliant upon the information technology systems of the investment manager and its ability to ensure those systems remain operational and that appropriate disaster recovery procedures are in place. There can be no assurance that the investment manager will be successful in maintaining effective and operational quantitative models and the related hardware and software systems.

Franklin International Aggregate Bond ETF | Market Trading  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Market Trading: The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than NAV when you buy shares of the Fund in the secondary market, and you may receive less (or more) than NAV when you sell those shares in the secondary market. The investment manager cannot predict whether shares will trade above (premium), below (discount) or at NAV.

To the extent that the underlying securities held by the Fund trade on an exchange that is closed when the securities exchange on which the Fund shares list and trade is open, there may be market uncertainty about the stale security pricing (i.e., the last quote from its closed foreign market) resulting in premiums or discounts to NAV that may be greater than those experienced by other ETFs.

Franklin International Aggregate Bond ETF | Authorized Participant Concentration  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Authorized Participant Concentration: Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund. "Authorized Participants" are broker-dealers that are permitted to create and redeem shares directly with the Fund and who have entered into agreements with the Fund’s distributor. The Fund has a limited number of institutions that act as Authorized Participants. To the extent that these institutions exit the business or are unable to proceed with creation and/or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units (as defined below), Fund shares may trade at a discount to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally.

Franklin International Aggregate Bond ETF | Cash Transactions  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Cash Transactions: Unlike certain ETFs, the Fund expects to generally effect its creations and redemptions entirely for cash, rather than for in-kind securities. Therefore, it may be required to sell portfolio securities and subsequently recognize gains on such sales that the Fund might not have recognized if it were to distribute portfolio securities in-kind. As such, investments in Fund shares may be less

tax-efficient than an investment in an ETF that distributes portfolio securities entirely in-kind.

Franklin International Aggregate Bond ETF | Large Shareholder  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Large Shareholder: Certain large shareholders, including other funds or accounts advised by the investment manager or an affiliate of the investment manager, may from time to time own a substantial amount of the Fund’s shares. In addition, a third-party investor, the investment manager or an affiliate of the investment manager, an authorized participant, a lead market maker, or another entity may invest in the Fund and hold its investment for a limited period of time solely to facilitate commencement of the Fund or to facilitate the Fund’s achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the Fund would be maintained at such levels or that the Fund would continue to meet applicable listing requirements. Redemptions by large shareholders could have a significant negative impact on the Fund. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the listing exchange and may, therefore, have a material upward or downward effect on the market price of the shares.

Franklin International Aggregate Bond ETF | Bloomberg Global Aggregate Index  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Bloomberg Global Aggregate Index
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.69%)
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.96%)
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.48%) [1]
Performance Inception Date oef_PerfInceptionDate May 30, 2018
Franklin International Aggregate Bond ETF | Bloomberg Global Aggregate ex-USD Index Hedged USD  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Bloomberg Global Aggregate ex-USD Index Hedged USD
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.97%
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.01%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.24% [1]
Performance Inception Date oef_PerfInceptionDate May 30, 2018
Franklin International Aggregate Bond ETF | Franklin International Aggregate Bond ETF  
Risk/Return: oef_RiskReturnAbstract  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.25%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.00%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.25%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 26
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 80
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 141
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 318
Year to Date Return, Label [Optional Text] oef_YearToDateReturnLabel As of June 30, 2025, the Fund’s year-to-date return was 1.48%.
Bar Chart, Year to Date Return, Date oef_BarChartYearToDateReturnDate Jun. 30, 2025
Bar Chart, Year to Date Return oef_BarChartYearToDateReturn 1.48%
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 5.42%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (3.31%)
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Return before taxes
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.91%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.14%
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.92% [1]
Annual Return [Percent] oef_AnnlRtrPct 7.67%
Annual Return [Percent] oef_AnnlRtrPct 1.31%
Annual Return [Percent] oef_AnnlRtrPct (1.96%)
Annual Return [Percent] oef_AnnlRtrPct (7.40%)
Annual Return [Percent] oef_AnnlRtrPct 6.35%
Annual Return [Percent] oef_AnnlRtrPct 2.91%
Performance Inception Date oef_PerfInceptionDate May 30, 2018
Franklin International Aggregate Bond ETF | Franklin International Aggregate Bond ETF | After Taxes on Distributions  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Return after taxes on distributions
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.71%
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.68%)
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.70%) [1]
Performance Inception Date oef_PerfInceptionDate May 30, 2018
Franklin International Aggregate Bond ETF | Franklin International Aggregate Bond ETF | After Taxes on Distributions and Sales  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund shares
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.73%
Average Annual Return, Percent oef_AvgAnnlRtrPct (0.67%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.02% [1]
Performance Inception Date oef_PerfInceptionDate May 30, 2018
[1]

Since inception May 30, 2018.