v3.25.2
Shareholder Report, Line Graph (Details) - USD ($)
12 Months Ended 24 Months Ended 48 Months Ended 60 Months Ended 132 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
C000235244_LG_ClassMember_4YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name     <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Metaverse ETF</span>    
C000235244_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value $ 10,000        
C000235244_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 8,433        
C000235244_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,209        
C000235244_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 12,175        
C000235244_LG_1_AdditionalIndexMember_4YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name     <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Metaverse Index℠</span>    
C000235244_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000235244_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 8,444        
C000235244_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,274        
C000235244_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 12,307        
C000235244_LG_2_AdditionalIndexMember_4YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name     <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index</span>    
C000235244_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000235244_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 8,644        
C000235244_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,111        
C000235244_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 12,111        
C000230605_LG_ClassMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Electric Vehicles and Future Transportation ETF</span>  
C000230605_ClassMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230605_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 7,085        
C000230605_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 7,607        
C000230605_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 5,359        
C000230605_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 5,976        
C000230605_LG_1_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Electric Vehicles and Future Transportation Index℠</span>  
C000230605_1_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230605_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 7,184        
C000230605_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 7,751        
C000230605_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 5,483        
C000230605_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 6,115        
C000230605_LG_2_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index</span>  
C000230605_2_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230605_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 8,524        
C000230605_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 9,970        
C000230605_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 11,943        
C000230605_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 13,918        
C000230604_LG_ClassMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Digital Health ETF</span>  
C000230604_ClassMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230604_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 7,401        
C000230604_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 7,843        
C000230604_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 7,332        
C000230604_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 8,537        
C000230604_LG_1_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Digital Health Index℠</span>  
C000230604_1_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230604_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 7,441        
C000230604_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 7,913        
C000230604_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 7,427        
C000230604_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 8,678        
C000230604_LG_2_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index</span>  
C000230604_2_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230604_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 8,524        
C000230604_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 9,970        
C000230604_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 11,943        
C000230604_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 13,918        
C000235243_LG_ClassMember_4YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name     <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Crypto Industry and Digital Payments ETF</span>    
C000235243_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000235243_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 4,808        
C000235243_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 7,450        
C000235243_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 11,374        
C000235243_LG_1_AdditionalIndexMember_4YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name     <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Crypto Industry and Digital Payments Index℠</span>    
C000235243_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000235243_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 4,812        
C000235243_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 7,479        
C000235243_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 11,466        
C000235243_LG_2_AdditionalIndexMember_4YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name     <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index</span>    
C000235243_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000235243_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 8,644        
C000235243_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,111        
C000235243_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 12,111        
C000230603_LG_ClassMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Cloud Computing ETF</span>  
C000230603_ClassMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230603_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 6,331        
C000230603_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 7,755        
C000230603_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 9,629        
C000230603_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 11,358        
C000230603_LG_1_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Cloud Computing Index℠</span>  
C000230603_1_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230603_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 6,385        
C000230603_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 7,854        
C000230603_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 9,710        
C000230603_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 11,499        
C000230603_LG_2_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index</span>  
C000230603_2_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230603_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 8,524        
C000230603_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 9,970        
C000230603_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 11,943        
C000230603_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 13,918        
C000230602_LG_ClassMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Clean Energy ETF</span>  
C000230602_ClassMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230602_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 8,388        
C000230602_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 8,397        
C000230602_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 5,931        
C000230602_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 6,455        
C000230602_LG_1_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Clean Energy Index℠</span>  
C000230602_1_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230602_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 8,508        
C000230602_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 8,539        
C000230602_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 6,049        
C000230602_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 6,606        
C000230602_LG_2_AdditionalIndexMember_5YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name       <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI ACWI (All Country World Index) Index</span>  
C000230602_2_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000230602_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 8,524        
C000230602_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 9,970        
C000230602_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 11,943        
C000230602_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 13,918        
C000244837_LG_ClassMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Large Cap Value ETF</span>
C000244837_ClassMember_AsOf_2015Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000244837_ClassMember_AsOf_2016Member          
Account Value [Line Items]          
Accumulated Value 10,097        
C000244837_ClassMember_AsOf_2017Member          
Account Value [Line Items]          
Accumulated Value 11,741        
C000244837_ClassMember_AsOf_2018Member          
Account Value [Line Items]          
Accumulated Value 12,937        
C000244837_ClassMember_AsOf_2019Member          
Account Value [Line Items]          
Accumulated Value 13,754        
C000244837_ClassMember_AsOf_2020Member          
Account Value [Line Items]          
Accumulated Value 12,666        
C000244837_ClassMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 18,718        
C000244837_ClassMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 17,791        
C000244837_ClassMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 19,612        
C000244837_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 22,435        
C000244837_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 25,463        
C000244837_LG_1_AdditionalIndexMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 1000® Value Index</span>
C000244837_1_AdditionalIndexMember_AsOf_2015Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000244837_1_AdditionalIndexMember_AsOf_2016Member          
Account Value [Line Items]          
Accumulated Value 10,286        
C000244837_1_AdditionalIndexMember_AsOf_2017Member          
Account Value [Line Items]          
Accumulated Value 11,884        
C000244837_1_AdditionalIndexMember_AsOf_2018Member          
Account Value [Line Items]          
Accumulated Value 12,688        
C000244837_1_AdditionalIndexMember_AsOf_2019Member          
Account Value [Line Items]          
Accumulated Value 13,762        
C000244837_1_AdditionalIndexMember_AsOf_2020Member          
Account Value [Line Items]          
Accumulated Value 12,546        
C000244837_1_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 18,026        
C000244837_1_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 16,797        
C000244837_1_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 18,735        
C000244837_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 21,181        
C000244837_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 24,083        
C000244837_LG_2_AdditionalIndexMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 1000® Index</span>
C000244837_2_AdditionalIndexMember_AsOf_2015Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000244837_2_AdditionalIndexMember_AsOf_2016Member          
Account Value [Line Items]          
Accumulated Value 10,293        
C000244837_2_AdditionalIndexMember_AsOf_2017Member          
Account Value [Line Items]          
Accumulated Value 12,149        
C000244837_2_AdditionalIndexMember_AsOf_2018Member          
Account Value [Line Items]          
Accumulated Value 13,916        
C000244837_2_AdditionalIndexMember_AsOf_2019Member          
Account Value [Line Items]          
Accumulated Value 15,310        
C000244837_2_AdditionalIndexMember_AsOf_2020Member          
Account Value [Line Items]          
Accumulated Value 16,455        
C000244837_2_AdditionalIndexMember_AsOf_2021Member          
Account Value [Line Items]          
Accumulated Value 23,543        
C000244837_2_AdditionalIndexMember_AsOf_2022Member          
Account Value [Line Items]          
Accumulated Value 20,474        
C000244837_2_AdditionalIndexMember_AsOf_2023Member          
Account Value [Line Items]          
Accumulated Value 24,438        
C000244837_2_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 30,274        
C000244837_2_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 35,016        
C000244833_LG_ClassMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced International ETF</span>
C000244833_ClassMember_AsOf_2015Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000244833_ClassMember_AsOf_2016Member          
Account Value [Line Items]          
Accumulated Value 9,040        
C000244833_ClassMember_AsOf_2017Member          
Account Value [Line Items]          
Accumulated Value 11,038        
C000244833_ClassMember_AsOf_2018Member          
Account Value [Line Items]          
Accumulated Value 11,860        
C000244833_ClassMember_AsOf_2019Member          
Account Value [Line Items]          
Accumulated Value 11,706        
C000244833_ClassMember_AsOf_2020Member          
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C000244833_LG_1_AdditionalIndexMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index</span>
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C000244833_1_AdditionalIndexMember_AsOf_2020Member          
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Account Value [Line Items]          
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Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Large Cap Core ETF</span>
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Account Value [Line Items]          
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Account Value [Line Items]          
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C000244835_ClassMember_AsOf_2020Member          
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C000244835_LG_1_AdditionalIndexMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&P 500® Index</span>
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Account Value [Line Items]          
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C000244835_1_AdditionalIndexMember_AsOf_2020Member          
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Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Large Cap Growth ETF</span>
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Account Value [Line Items]          
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Account Value [Line Items]          
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C000244836_ClassMember_AsOf_2020Member          
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C000244836_ClassMember_AsOf_2025Member          
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C000244836_LG_1_AdditionalIndexMember_11YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 1000® Growth Index</span>
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C000244836_1_AdditionalIndexMember_AsOf_2020Member          
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Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 1000® Index</span>
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Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Small Cap ETF</span>
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Account Value [Line Items]          
Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 2000® Index</span>
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Line Graph and Table Measure Name         <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Mid Cap ETF</span>
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Accumulated Value 10,534        
C000253741_LG_1_AdditionalIndexMember_2YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 3000® Index</span>      
C000253741_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000253741_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 10,493        
C000253742_LG_ClassMember_2YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Emerging Markets ETF</span>      
C000253742_ClassMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000253742_ClassMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value 11,400        
C000253742_LG_1_AdditionalIndexMember_2YRMember          
Account Value [Line Items]          
Line Graph and Table Measure Name   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI Emerging Markets Index</span>      
C000253742_1_AdditionalIndexMember_AsOf_2024Member          
Account Value [Line Items]          
Accumulated Value 10,000        
C000253742_1_AdditionalIndexMember_AsOf_2025Member          
Account Value [Line Items]          
Accumulated Value $ 11,338