010000 - Document - Document and Entity Information {Elements}
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020102 - Disclosure - Risk/Return Detail Data (Franklin U.S. Large Cap Multifactor Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020104 - Disclosure - Risk/Return Detail Data (Franklin U.S. Mid Cap Multifactor Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020106 - Disclosure - Risk/Return Detail Data (Franklin U.S. Small Cap Multifactor Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020108 - Disclosure - Risk/Return Detail Data (Franklin International Dividend Booster Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020110 - Disclosure - Risk/Return Detail Data (Franklin U.S. Dividend Booster Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020112 - Disclosure - Risk/Return Detail Data (Franklin International Core Dividend Tilt Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020114 - Disclosure - Risk/Return Detail Data (Franklin Emerging Market Core Dividend Tilt Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020116 - Disclosure - Risk/Return Detail Data (Franklin U.S. Core Dividend Tilt Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020118 - Disclosure - Risk/Return Detail Data (BrandywineGLOBAL-U.S. Fixed Income ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020120 - Disclosure - Risk/Return Detail Data (BrandywineGLOBAL-Dynamic US Large Cap Value ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020122 - Disclosure - Risk/Return Detail Data (Franklin Disruptive Commerce ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020124 - Disclosure - Risk/Return Detail Data (Franklin Genomic Advancements ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020126 - Disclosure - Risk/Return Detail Data (Franklin Intelligent Machines ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020128 - Disclosure - Risk/Return Detail Data (Franklin Exponential Data ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020130 - Disclosure - Risk/Return Detail Data (Franklin Income Equity Focus ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020132 - Disclosure - Risk/Return Detail Data (Franklin Investment Grade Corporate ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020134 - Disclosure - Risk/Return Detail Data (Franklin Dynamic Municipal Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020136 - Disclosure - Risk/Return Detail Data (Franklin Municipal Green Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020138 - Disclosure - Risk/Return Detail Data (Franklin High Yield Corporate ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020140 - Disclosure - Risk/Return Detail Data (Franklin International Aggregate Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020142 - Disclosure - Risk/Return Detail Data (Franklin Senior Loan ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020144 - Disclosure - Risk/Return Detail Data (Franklin U.S. Core Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020146 - Disclosure - Risk/Return Detail Data (Franklin U.S. Treasury Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020148 - Disclosure - Risk/Return Detail Data (Franklin Ultra Short Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020150 - Disclosure - Risk/Return Detail Data (Franklin Systematic Style Premia ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020152 - Disclosure - Risk/Return Detail Data (Franklin Dividend Growth ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020154 - Disclosure - Risk/Return Detail Data (Franklin Focused Dynamic Growth ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020156 - Disclosure - Risk/Return Detail Data (Franklin Income Focus ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020158 - Disclosure - Risk/Return Detail Data (Franklin U.S. Equity Index ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020160 - Disclosure - Risk/Return Detail Data (Templeton Emerging Markets Debt ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020162 - Disclosure - Risk/Return Detail Data (Franklin FTSE Australia ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020164 - Disclosure - Risk/Return Detail Data (Franklin FTSE Brazil ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020166 - Disclosure - Risk/Return Detail Data (Franklin FTSE Canada ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020168 - Disclosure - Risk/Return Detail Data (Franklin FTSE China ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020170 - Disclosure - Risk/Return Detail Data (Franklin FTSE Germany ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020172 - Disclosure - Risk/Return Detail Data (Franklin FTSE India ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020174 - Disclosure - Risk/Return Detail Data (Franklin FTSE Japan ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020176 - Disclosure - Risk/Return Detail Data (Franklin FTSE Latin America ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020178 - Disclosure - Risk/Return Detail Data (Franklin FTSE Mexico ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020180 - Disclosure - Risk/Return Detail Data (Franklin FTSE Saudi Arabia ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020182 - Disclosure - Risk/Return Detail Data (Franklin FTSE South Korea ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020184 - Disclosure - Risk/Return Detail Data (Franklin FTSE Switzerland ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020186 - Disclosure - Risk/Return Detail Data (Franklin FTSE Taiwan ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020188 - Disclosure - Risk/Return Detail Data (Franklin FTSE United Kingdom ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020190 - Disclosure - Risk/Return Detail Data (Franklin FTSE Asia ex Japan ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020192 - Disclosure - Risk/Return Detail Data (Franklin FTSE Europe ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020194 - Disclosure - Risk/Return Detail Data (Franklin FTSE Eurozone ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020196 - Disclosure - Risk/Return Detail Data (Franklin FTSE Japan Hedged ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020198 - Disclosure - Risk/Return Detail Data (Franklin Multisector Income ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020200 - Disclosure - Risk/Return Detail Data (Franklin FTSE Russia ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020202 - Disclosure - Risk/Return Detail Data (Putnam International Stock ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020204 - Disclosure - Risk/Return Detail Data (Templeton International Insights ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020206 - Disclosure - Risk/Return Detail Data (Western Asset Bond ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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020208 - Disclosure - Risk/Return Detail Data (FRANKLIN SMALL CAP ENHANCED ETF) {Elements}
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020101 - Schedule - Risk Table {Transposed}
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010004 - Schedule - Investment Risks {Unlabeled}
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