| Form N-CSR Cover | 12 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Fidelity Covington Trust |
| Entity Central Index Key | 0000945908 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 12 Months Ended |
| Jun. 30, 2024 USD ($) shares | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Fidelity Covington Trust |
| Entity Central Index Key | 0000945908 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Fidelity Enhanced Large Cap Value ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Enhanced Large Cap Value ETF |
| Class Name | Fidelity® Enhanced Large Cap Value ETF |
| Trading Symbol | FELV |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Enhanced Large Cap Value ETF for the period September 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enhanced Large Cap Value ETF $ 0.28 % |
| Expenses Paid, Amount | $ 25 |
| Expense Ratio, Percent | 0.28% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • U.S. equities gained considerably for the 12 months ending June 30, 2024, driven by resilient corporate profits, a frenzy over generative artificial intelligence and the Federal Reserve's likely pivot to cutting interest rates later this year. Amid this favorable backdrop for higher-risk assets, stocks continued their late-2023 momentum, powered by signs of continued U.S. economic strength. • Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark, especially within information technology, where our stock picking in semiconductors & semiconductor equipment helped most. Picks in communication services, consumer staples and consumer discretionary also helped. • The top individual relative contributor was our non-benchmark stake in Nvidia (+194%). Other notable relative contributors included an overweight in Qualcomm (+70%) and a non-benchmark stake in Broadcom (+87%). This period we decreased our positions in Qualcomm and Broadcom. • In contrast, the largest detractor from performance versus the benchmark was stock picking in health care. Security selection in real estate, primarily within the equity real estate investment trusts (REITs) industry, also hampered the fund's result. • The biggest individual relative detractor was our non-benchmark stake in Teradata (-36%). The second-largest detractor was an overweight in Zimmer Biomet (-25%). This period we decreased our positions in Teradata and Zimmer Biomet. A stake in Hawaiian Electric Industries returned -66% and also notably hurt. Hawaiian Electric was not held at period end. • Notable changes in positioning include decreased exposure to consumer discretionary and 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.</span>" id="sjs-B27"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? CUMULATIVE PERFORMANCE June 30, 2014 through June 30, 2024. Initial investment of $10,000. Fidelity® Enhanced Large Cap Value ETF $10,000 $10,508 $10,610 $12,338 $13,594 $14,453 $13,310 $19,669 $18,695 $20,608 $23,575 Russell 1000® Value Index $10,000 $10,413 $10,711 $12,375 $13,212 $14,331 $13,064 $18,771 $17,491 $19,509 $22,057 Russell 1000® Index $10,000 $10,737 $11,052 $13,044 $14,941 $16,438 $17,667 $25,277 $21,982 $26,239 $32,504 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year 5 Year 10 Year Fidelity® Enhanced Large Cap Value ETF - NAV 14.40% 10.28% 8.95% Fidelity® Enhanced Large Cap Value ETF - Market Price A 14.60% 10.32% 8.97% Russell 1000® Value Index 13.06% 9.01% 8.23% Russell 1000® Index 23.88% 14.61% 12.51% A From November 20, 2023, date initially listed on the NYSE Arca, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| 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 redemption of fund shares. |
| Net Assets | $ 1,792,516,935 |
| Holdings Count | shares | 333 |
| Advisory Fees Paid, Amount | $ 5,908,652 |
| Investment Company Portfolio Turnover | 90% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 333 Total Advisory Fee $ Portfolio Turnover 90 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Financials 22.4 Industrials 16.3 Health Care 14.3 Information Technology 10.8 Consumer Staples 7.3 Energy 6.7 Consumer Discretionary 5.6 Communication Services 4.5 Materials 4.4 Utilities 4.0 Real Estate 3.0 Common Stocks 99.3 Short-Term Investments and Net Other Assets (Liabilities) 0.7 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Berkshire Hathaway Inc Class B 3.7 JPMorgan Chase & Co 3.1 Exxon Mobil Corp 2.8 Bank of America Corp 1.7 Walmart Inc 1.7 Procter & Gamble Co/The 1.4 Unitedhealth Group Inc 1.4 Johnson & Johnson 1.3 Intel Corp 1.2 Pfizer Inc 1.1 19.4 |
| Material Fund Change [Text Block] | How has the Fund changed? This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses Fidelity Enhanced Large Cap Value ETF converted from Fidelity Enhanced Large Cap Value Index Fund on November 17, 2023. This move, approved by the Board of Trustees in June 2023, was deemed in the best interest of shareholders. The new ETF and its former corresponding fund have identical investment objectives and fundamental investment policies and have substantially similar investment strategies. Returns prior to the conversion are those of the former corresponding fund. Fidelity believes that the conversion will provide multiple benefits for investors of the fund, including lower net expenses, additional trading flexibility, increased portfolio holdings transparency and the potential for enhanced tax efficiency. Effective March 1, 2024, the fund's fiscal year end changed from August 31 to June 30. |
| Material Fund Change Expenses [Text Block] | The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . |
| Updated Prospectus Phone Number | 1-800-FIDELITY</span>" id="sjs-B41"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> |
| Updated Prospectus Email Address | fidfunddocuments@fidelity.com</span>" id="sjs-B42"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> |
| Updated Prospectus Web Address | fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B43"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> |
| Fidelity Enhanced Small Cap ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Enhanced Small Cap ETF |
| Class Name | Fidelity® Enhanced Small Cap ETF |
| Trading Symbol | FESM |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Enhanced Small Cap ETF for the period March 1, 2024 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enhanced Small Cap ETF $ 0.28 % |
| Expenses Paid, Amount | $ 10 |
| Expense Ratio, Percent | 0.28% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • U.S. equities gained considerably for the 12 months ending June 30, 2024, driven by resilient corporate profits, a frenzy over generative artificial intelligence and the Federal Reserve's likely pivot to cutting interest rates later this year. Amid this favorable backdrop for higher-risk assets, stocks continued their late-2023 momentum, powered by signs of continued U.S. economic strength. • Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark, led by industrials. Stock selection in consumer discretionary, consumer staples and materials also boosted the fund's relative performance. • The top individual relative contributor was an overweight in Super Micro Computer (+240%), which was our top stock holding. Overweight holdings in Abercrombie & Fitch (+376%) and Carvana (+160%) also notably helped. Abercrombie & Fitch and Carvana were among the fund's largest holdings at period end. The stake in Carvana was established this period. • In contrast, the biggest detractor from performance versus the benchmark was stock picking in real estate, primarily within the equity real estate investment trusts (REITs) industry. Security selection in health care also hampered the fund's result, as did an overweight in communication services. • The biggest individual relative detractor was an underweight in MicroStrategy (+302%), which ended the 12-month period as a top-10 fund holding. This was an investment we established this period. A second notable relative detractor was an overweight in CommScope (-78%). A stake in Omnicell returned -60% and also notably hurt. Omnicell was not held at period end. • Notable changes in positioning include decreased exposure to real estate and consumer discretionary. |
| 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-B61"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? CUMULATIVE PERFORMANCE June 30, 2014 through June 30, 2024. Initial investment of $10,000. Fidelity® Enhanced Small Cap ETF $10,000 $10,945 $10,250 $12,504 $14,173 $13,493 $12,195 $20,519 $15,971 $18,451 $21,069 Russell 2000® Index $10,000 $10,649 $9,932 $12,375 $14,549 $14,067 $13,135 $21,283 $15,920 $17,879 $19,677 Russell 3000® Index $10,000 $10,729 $10,959 $12,987 $14,907 $16,246 $17,306 $24,950 $21,490 $25,563 $31,475 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year 5 Year 10 Year Fidelity® Enhanced Small Cap ETF - NAV 14.19% 9.32% 7.74% Fidelity® Enhanced Small Cap ETF - Market Price A 14.29% 9.34% 7.75% Russell 2000® Index 10.06% 6.94% 7.00% Russell 3000® Index 23.13% 14.14% 12.15% A From November 20, 2023, date initially listed on the NYSE Arca, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| 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 redemption of fund shares. |
| Net Assets | $ 574,172,456 |
| Holdings Count | shares | 568 |
| Advisory Fees Paid, Amount | $ 514,102 |
| Investment Company Portfolio Turnover | 71% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 568 Total Advisory Fee $ Portfolio Turnover 71 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Industrials 19.0 Financials 15.1 Health Care 14.9 Information Technology 14.9 Consumer Discretionary 10.3 Energy 5.7 Materials 5.3 Real Estate 4.1 Consumer Staples 3.5 Communication Services 3.0 Utilities 2.2 Common Stocks 98.0 Short-Term Investments and Net Other Assets (Liabilities) 2.0 ASSET ALLOCATION (% of Fund's net assets) United States 97.3 Thailand 0.9 Ireland 0.7 Puerto Rico 0.7 Monaco 0.2 Canada 0.2 Norway 0.0 Israel 0.0 Germany 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Abercrombie & Fitch Co Class A 1.0 Fabrinet 0.9 SPS Commerce Inc 0.9 Applied Industrial Technologies Inc 0.8 Taylor Morrison Home Corp 0.8 Carpenter Technology Corp 0.7 Installed Building Products Inc 0.7 Murphy Oil Corp 0.7 CommVault Systems Inc 0.7 SkyWest Inc 0.7 7.9 |
| Material Fund Change [Text Block] | How has the Fund changed? This is a summary of certain changes to the Fund since March 1, 2024. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses • Expense reductions Fidelity Enhanced Small Cap ETF converted from Fidelity Enhanced Small Cap Index Fund on November 17, 2023. This move, approved by the Board of Trustees in June 2023, was deemed in the best interest of shareholders. The new ETF and its former corresponding fund have identical investment objectives and fundamental investment policies and have substantially similar investment strategies. Returns prior to the conversion are those of the former corresponding fund. Fidelity believes that the conversion will provide multiple benefits for investors of the fund, including lower net expenses, additional trading flexibility, increased portfolio holdings transparency and the potential for enhanced tax efficiency. Effective March 1, 2024, the fund's fiscal year end changed from February 28 to June 30. |
| Material Fund Change Expenses [Text Block] | The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses • Expense reductions |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since March 1, 2024. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . |
| Updated Prospectus Phone Number | 1-800-FIDELITY</span>" id="sjs-B75"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> |
| Updated Prospectus Email Address | fidfunddocuments@fidelity.com</span>" id="sjs-B76"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> |
| Updated Prospectus Web Address | fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B77"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> |
| Fidelity Enhanced Mid Cap ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Enhanced Mid Cap ETF |
| Class Name | Fidelity® Enhanced Mid Cap ETF |
| Trading Symbol | FMDE |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Enhanced Mid Cap ETF for the period September 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enhanced Mid Cap ETF $ 0.29 % |
| Expenses Paid, Amount | $ 26 |
| Expense Ratio, Percent | 0.29% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • U.S. equities gained considerably for the 12 months ending June 30, 2024, driven by resilient corporate profits, a frenzy over generative artificial intelligence and the Federal Reserve's likely pivot to cutting interest rates later this year. Amid this favorable backdrop for higher-risk assets, stocks continued their late-2023 momentum, powered by signs of continued U.S. economic strength. • Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark, led by industrials. Stock picking in information technology and consumer discretionary, and positioning in consumer staples and communication services, also boosted relative performance. • The top individual relative contributor was an overweight in Vistra (+233%). Overweight holdings in AppLovin (+217%) and Robinhood Markets (+126%) also helped. • In contrast, the biggest detractors from performance versus the benchmark were stock selection and an overweight in health care. An underweight in energy also hampered the fund's result, as did stock picking and an underweight in financials. • The largest individual relative detractor was an underweight in CrowdStrike Holdings (+161%). We established a position in the stock during the period. Other notable relative detractors included an overweight in 10x Genomics (-66%) and an underweight in Constellation Energy (+121%). The latter was an investment we established this period. • Notable changes in positioning include lower allocations to health care and real estate. |
| 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-B95"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? CUMULATIVE PERFORMANCE June 30, 2014 through June 30, 2024. Initial investment of $10,000. Fidelity® Enhanced Mid Cap ETF $10,000 $10,845 $10,548 $12,433 $13,862 $14,491 $14,067 $21,084 $17,942 $20,616 $23,962 Russell Midcap® Index $10,000 $10,663 $10,723 $12,490 $14,030 $15,128 $14,789 $22,154 $18,322 $21,057 $23,768 Russell 3000® Index $10,000 $10,729 $10,959 $12,987 $14,907 $16,246 $17,306 $24,950 $21,490 $25,563 $31,475 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year 5 Year 10 Year Fidelity® Enhanced Mid Cap ETF - NAV 16.23% 10.58% 9.13% Fidelity® Enhanced Mid Cap ETF - Market Price A 16.35% 10.61% 9.14% Russell Midcap® Index 12.88% 9.46% 9.04% Russell 3000® Index 23.13% 14.14% 12.15% A From November 20, 2023, date initially listed on the NYSE Arca, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| 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 redemption of fund shares. |
| Net Assets | $ 1,653,576,076 |
| Holdings Count | shares | 278 |
| Advisory Fees Paid, Amount | $ 3,648,331 |
| Investment Company Portfolio Turnover | 73% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 278 Total Advisory Fee $ Portfolio Turnover 73 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Industrials 18.9 Financials 16.4 Information Technology 14.8 Consumer Discretionary 12.1 Health Care 9.9 Materials 6.3 Real Estate 5.6 Energy 4.9 Utilities 4.0 Consumer Staples 3.9 Communication Services 2.4 Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets) United States 99.7 Israel 0.3 Brazil 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Simon Property Group Inc 1.0 Bank of New York Mellon Corp/The 1.0 Ross Stores Inc 1.0 Monolithic Power Systems Inc 0.9 Nucor Corp 0.9 DR Horton Inc 0.9 Cummins Inc 0.9 Cencora Inc 0.9 AMETEK Inc 0.8 Block Inc Class A 0.8 9.1 |
| Material Fund Change [Text Block] | How has the Fund changed? This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses Fidelity Enhanced Mid Cap ETF converted from Fidelity Enhanced Mid Cap Index Fund on November 17, 2023. This move, approved by the Board of Trustees in June 2023, was deemed in the best interest of shareholders. The new ETF and its former corresponding fund have identical investment objectives and fundamental investment policies and have substantially similar investment strategies. Returns prior to the conversion are those of the former corresponding fund. Fidelity believes that the conversion will provide multiple benefits for investors of the fund, including lower net expenses, additional trading flexibility, increased portfolio holdings transparency and the potential for enhanced tax efficiency. Effective March 1, 2024, the fund's fiscal year end changed from August 31 to June 30. |
| Material Fund Change Expenses [Text Block] | The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . |
| Updated Prospectus Phone Number | 1-800-FIDELITY</span>" id="sjs-B109"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> |
| Updated Prospectus Email Address | fidfunddocuments@fidelity.com</span>" id="sjs-B110"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> |
| Updated Prospectus Web Address | fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B111"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> |
| Fidelity Enhanced International ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Enhanced International ETF |
| Class Name | Fidelity® Enhanced International ETF |
| Trading Symbol | FENI |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Enhanced International ETF for the period September 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enhanced International ETF $ 0.36 % |
| Expenses Paid, Amount | $ 32 |
| Expense Ratio, Percent | 0.36% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • International equities gained for the 12 months ending June 30, 2024, as global economic expansion amid improved financial conditions, fairly low volatility and firmer manufacturing activity provided a favorable backdrop for risk assets. Performance was largely driven by a narrow set of technology-focused firms riding high-growth megatrends, fanned by enthusiasm for artificial intelligence. • Against this backdrop, stock picks in the U.K. and stock picking and an underweight in Europe ex the U.K. contributed to the fund's performance versus the benchmark. By sector, security selection was the primary contributor, especially within industrials, where our picks in capital goods helped most. Stock selection in information technology, and picks and an underweight in consumer staples, also boosted relative performance, as did stock selection in health care, primarily within the pharmaceuticals, biotechnology & life sciences industry. • The top individual relative contributor was an overweight in Rolls-Royce Holdings (+193%). This period we decreased our position. Other notable relative contributors included overweight holdings in Disco (+141%) and Wix.com (+98%). We decreased our investment in Wix.com during the period. • In contrast, from a regional standpoint, an overweight in Asia Pacific ex Japan, primarily in Hong Kong, and security selection in emerging markets detracted from the fund's relative result. By sector, the biggest detractor from performance versus the benchmark was stock selection in communication services. Also hurting our result were stock picks and an underweight in financials, primarily within the banks industry, and selection and an overweight in consumer discretionary, primarily within the automobiles & components industry. • The largest individual relative detractor was an overweight in Genmab (-34%). Overweight stakes in Panasonic Holdings (-33%) and RWE (-23%) also hurt. RWE was not held at period end. • Notable changes in positioning include increased exposure to the Netherlands and a lower allocation to Sweden. By sector, meaningful changes in positioning include decreased exposure to consumer discretionary and a higher allocation to information technology. |
| 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-B129"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? CUMULATIVE PERFORMANCE June 30, 2014 through June 30, 2024. Initial investment of $10,000. Fidelity® Enhanced International ETF $10,000 $9,777 $8,838 $10,792 $11,596 $11,445 $10,724 $14,351 $11,777 $13,983 $16,016 MSCI EAFE Index $10,000 $9,591 $8,633 $10,403 $11,139 $11,285 $10,726 $14,222 $11,721 $13,952 $15,596 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year 5 Year 10 Year Fidelity® Enhanced International ETF - NAV 14.54% 6.95% 4.82% Fidelity® Enhanced International ETF - Market Price A 14.45% 6.94% 4.81% MSCI EAFE Index 11.79% 6.69% 4.54% A From November 20, 2023, date initially listed on the NYSE Arca, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| 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 redemption of fund shares. |
| Net Assets | $ 1,557,851,321 |
| Holdings Count | shares | 285 |
| Advisory Fees Paid, Amount | $ 4,154,555 |
| Investment Company Portfolio Turnover | 109% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 285 Total Advisory Fee $ Portfolio Turnover 109 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Financials 19.1 Industrials 18.7 Health Care 13.8 Information Technology 11.2 Consumer Discretionary 9.3 Materials 8.2 Consumer Staples 6.5 Energy 3.4 Utilities 3.3 Communication Services 3.3 Real Estate 1.6 Common Stocks 97.8 Preferred Stocks 0.6 Short-Term Investments and Net Other Assets (Liabilities) 1.6 ASSET ALLOCATION (% of Fund's net assets) Japan 22.9 United States 11.1 United Kingdom 10.1 France 8.2 Germany 7.6 Australia 6.5 Netherlands 5.9 Switzerland 5.6 Denmark 4.1 Others 18.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Novo Nordisk A/S Series B 3.0 ASML Holding NV 1.9 Shell PLC 1.7 Novartis AG 1.7 Roche Holding AG 1.5 TotalEnergies SE 1.4 Schneider Electric SE 1.2 Hitachi Ltd 1.2 ASML Holding NV depository receipt 1.1 Nestle SA 1.1 15.8 |
| Material Fund Change [Text Block] | How has the Fund changed? This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses Fidelity Enhanced International ETF converted from Fidelity Enhanced International Index Fund on November 17, 2023. This move, approved by the Board of Trustees in June 2023, was deemed in the best interest of shareholders. The new ETF and its former corresponding fund have identical investment objectives and fundamental investment policies and have substantially similar investment strategies. Returns prior to the conversion are those of the former corresponding fund. Fidelity believes that the conversion will provide multiple benefits for investors of the fund, including lower net expenses, additional trading flexibility, increased portfolio holdings transparency and the potential for enhanced tax efficiency. Effective March 1, 2024, the fund's fiscal year end changed from August 31 to June 30. |
| Material Fund Change Expenses [Text Block] | The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . |
| Updated Prospectus Phone Number | 1-800-FIDELITY</span>" id="sjs-B143"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> |
| Updated Prospectus Email Address | fidfunddocuments@fidelity.com</span>" id="sjs-B144"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> |
| Updated Prospectus Web Address | fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B145"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> |
| Fidelity Enhanced Large Cap Growth ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Enhanced Large Cap Growth ETF |
| Class Name | Fidelity® Enhanced Large Cap Growth ETF |
| Trading Symbol | FELG |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Enhanced Large Cap Growth ETF for the period September 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enhanced Large Cap Growth ETF $ 0.24 % |
| Expenses Paid, Amount | $ 23 |
| Expense Ratio, Percent | 0.24% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • U.S. equities gained considerably for the 12 months ending June 30, 2024, driven by resilient corporate profits, a frenzy over generative artificial intelligence and the Federal Reserve's likely pivot to cutting interest rates later this year. Amid this favorable backdrop for higher-risk assets, stocks continued their late-2023 momentum, powered by signs of continued U.S. economic strength. • Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark, especially within industrials. Stock picks and an underweight in consumer discretionary, and picks in information technology, also boosted relative performance, as did an underweight in consumer staples, primarily within the food, beverage & tobacco industry. • The top individual relative contributor was an overweight in Nvidia (+190%), which was one of our biggest holdings. Other notable relative contributors included a non-benchmark stake in Abercrombie & Fitch (+120%), an investment we established this period, and an underweight in Starbucks (-19%). Starbucks was not held at period end. • In contrast, the biggest detractor from performance versus the benchmark was security selection in health care, primarily within the health care equipment & services industry. Stock picking and an overweight in energy also hampered the fund's result. • The largest individual relative detractor was an overweight in Teradata (-33%). This period we increased our stake in the stock. The second-largest relative detractor was our non-benchmark stake in Bristol-Myers Squibb (-23%). An overweight in Lattice Semiconductor (-40%) also hurt. Lattice Semiconductor was not held at period end. • Notable changes in positioning include higher allocations to communication services and financials. |
| 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-B163"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? CUMULATIVE PERFORMANCE June 30, 2014 through June 30, 2024. Initial investment of $10,000. Fidelity® Enhanced Large Cap Growth ETF $10,000 $11,094 $11,159 $13,221 $16,059 $17,436 $21,164 $30,479 $25,359 $31,510 $42,642 Russell 1000® Growth Index $10,000 $11,056 $11,390 $13,716 $16,804 $18,746 $23,110 $32,932 $26,749 $34,000 $45,384 Russell 1000® Index $10,000 $10,737 $11,052 $13,044 $14,941 $16,438 $17,667 $25,277 $21,982 $26,239 $32,504 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year 5 Year 10 Year Fidelity® Enhanced Large Cap Growth ETF - NAV 35.33% 19.59% 15.61% Fidelity® Enhanced Large Cap Growth ETF - Market Price A 35.76% 19.66% 15.64% Russell 1000® Growth Index 33.48% 19.34% 16.33% Russell 1000® Index 23.88% 14.61% 12.51% A From November 20, 2023, date initially listed on the NYSE Arca, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| 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 redemption of fund shares. |
| Net Assets | $ 2,686,905,203 |
| Holdings Count | shares | 112 |
| Advisory Fees Paid, Amount | $ 4,395,441 |
| Investment Company Portfolio Turnover | 58% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 112 Total Advisory Fee $ Portfolio Turnover 58 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Information Technology 49.1 Communication Services 13.4 Consumer Discretionary 13.3 Health Care 7.9 Financials 5.9 Industrials 5.4 Consumer Staples 1.6 Materials 1.2 Energy 1.1 Utilities 0.5 Common Stocks 99.4 Short-Term Investments and Net Other Assets (Liabilities) 0.6 ASSET ALLOCATION (% of Fund's net assets) United States 99.8 Mexico 0.1 Brazil 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Microsoft Corp 11.7 NVIDIA Corp 11.3 Apple Inc 11.2 Amazon.com Inc 6.1 Meta Platforms Inc Class A 4.4 Alphabet Inc Class A 3.8 Alphabet Inc Class C 3.7 Broadcom Inc 2.9 Eli Lilly & Co 2.3 Mastercard Inc Class A 1.8 59.2 |
| Material Fund Change [Text Block] | How has the Fund changed? This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses Fidelity Enhanced Large Cap Growth ETF converted from Fidelity Enhanced Large Cap Growth Index Fund on November 17, 2023. This move, approved by the Board of Trustees in June 2023, was deemed in the best interest of shareholders. The new ETF and its former corresponding fund have identical investment objectives and fundamental investment policies and have substantially similar investment strategies. Returns prior to the conversion are those of the former corresponding fund. Fidelity believes that the conversion will provide multiple benefits for investors of the fund, including lower net expenses, additional trading flexibility, increased portfolio holdings transparency and the potential for enhanced tax efficiency. Effective March 1, 2024, the fund's fiscal year end changed from August 31 to June 30. |
| Material Fund Change Expenses [Text Block] | The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . |
| Updated Prospectus Phone Number | 1-800-FIDELITY</span>" id="sjs-B177"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> |
| Updated Prospectus Email Address | fidfunddocuments@fidelity.com</span>" id="sjs-B178"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> |
| Updated Prospectus Web Address | fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B179"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> |
| Fidelity Cloud Computing ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Cloud Computing ETF |
| Class Name | Fidelity® Cloud Computing ETF |
| Trading Symbol | FCLD |
| Security Exchange Name | CboeBZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Cloud Computing ETF for the period July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Cloud Computing ETF $ 0.40 % |
| Expenses Paid, Amount | $ 45 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • • • • • |
| 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-B196"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the life of Fund? CUMULATIVE PERFORMANCE October 5, 2021 through June 30, 2024. Initial investment of $10,000. Fidelity® Cloud Computing ETF $10,000 $6,331 $7,755 $9,629 Fidelity Cloud Computing Index℠ $10,000 $6,385 $7,854 $9,710 MSCI ACWI (All Country World Index) Index $10,000 $8,524 $9,970 $11,943 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year Life of Fund Fidelity® Cloud Computing ETF - NAV A 24.16% -1.37% Fidelity® Cloud Computing ETF - Market Price B 24.03% -1.89% Fidelity Cloud Computing Index℠ A 23.63% -1.07% MSCI ACWI (All Country World Index) Index A 19.79% 6.70% A From October 5, 2021 B From October 7, 2021, date initially listed on the Cboe BZX Exchange, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| Performance Inception Date | Oct. 05, 2021 |
| 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 redemption of fund shares. |
| Net Assets | $ 77,121,561 |
| Holdings Count | shares | 51 |
| Advisory Fees Paid, Amount | $ 225,751 |
| Investment Company Portfolio Turnover | 33% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 33 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Information Technology 92.3 Real Estate 6.2 Industrials 1.5 Common Stocks 100.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets) United States 93.7 Israel 2.9 New Zealand 1.9 China 1.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Oracle Corp 5.2 Intuit Inc 4.8 Salesforce Inc 4.7 Servicenow Inc 4.6 Microsoft Corp 4.5 Equinix Inc 3.3 Datadog Inc Class A 2.9 Digital Realty Trust Inc 2.9 Workday Inc Class A 2.9 Snowflake Inc Class A 2.8 38.6 |
| Fidelity Electric Vehicles and Future Transportation ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Electric Vehicles and Future Transportation ETF |
| Class Name | Fidelity® Electric Vehicles and Future Transportation ETF |
| Trading Symbol | FDRV |
| Security Exchange Name | CBOE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Electric Vehicles and Future Transportation ETF for the period July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Electric Vehicles and Future Transportation ETF $ 0.40 % |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • • • • |
| 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-B224"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the life of Fund? CUMULATIVE PERFORMANCE October 5, 2021 through June 30, 2024. Initial investment of $10,000. Fidelity® Electric Vehicles and Future Transportation ETF $10,000 $7,085 $7,607 $5,359 Fidelity Electric Vehicles and Future Transportation Index℠ $10,000 $7,184 $7,751 $5,483 MSCI ACWI (All Country World Index) Index $10,000 $8,524 $9,970 $11,943 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year Life of Fund Fidelity® Electric Vehicles and Future Transportation ETF - NAV A -29.55% -20.38% Fidelity® Electric Vehicles and Future Transportation ETF - Market Price B -30.25% -21.12% Fidelity Electric Vehicles and Future Transportation Index℠ A -29.25% -19.71% MSCI ACWI (All Country World Index) Index A 19.79% 6.70% A From October 5, 2021 B From October 7, 2021, date initially listed on the Cboe BZX Exchange, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| Performance Inception Date | Oct. 05, 2021 |
| 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 redemption of fund shares. |
| Net Assets | $ 32,787,168 |
| Holdings Count | shares | 51 |
| Advisory Fees Paid, Amount | $ 169,524 |
| Investment Company Portfolio Turnover | 54% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 54 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Consumer Discretionary 39.7 Information Technology 33.5 Industrials 18.6 Materials 8.0 Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 55.2 China 18.7 Korea (South) 8.5 Germany 3.4 Singapore 2.8 France 2.7 Japan 2.4 Bailiwick Of Jersey 1.5 Israel 1.4 Others 3.4 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Tesla Inc 5.5 Uber Technologies Inc 5.3 Analog Devices Inc 4.8 NXP Semiconductors NV 4.0 BYD Co Ltd H Shares 3.7 Garmin Ltd 3.4 Infineon Technologies AG 3.4 ON Semiconductor Corp 2.9 Aptiv PLC 2.9 Skyworks Solutions Inc 2.8 38.7 |
| Fidelity Clean Energy ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Clean Energy ETF |
| Class Name | Fidelity® Clean Energy ETF |
| Trading Symbol | FRNW |
| Security Exchange Name | CBOE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Clean Energy ETF for the period July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Clean Energy ETF $ 0.40 % |
| Expenses Paid, Amount | $ 34 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • • • • |
| 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-B252"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the life of Fund? CUMULATIVE PERFORMANCE October 5, 2021 through June 30, 2024. Initial investment of $10,000. Fidelity® Clean Energy ETF $10,000 $8,388 $8,397 $5,931 Fidelity Clean Energy Index℠ $10,000 $8,508 $8,539 $6,049 MSCI ACWI (All Country World Index) Index $10,000 $8,524 $9,970 $11,943 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year Life of Fund Fidelity® Clean Energy ETF - NAV A -29.37% -17.38% Fidelity® Clean Energy ETF - Market Price B -29.77% -17.94% Fidelity Clean Energy Index℠ A -29.16% -16.78% MSCI ACWI (All Country World Index) Index A 19.79% 6.70% A From October 5, 2021 B From October 7, 2021, date initially listed on the Cboe BZX Exchange, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| Performance Inception Date | Oct. 05, 2021 |
| 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 redemption of fund shares. |
| Net Assets | $ 25,386,822 |
| Holdings Count | shares | 52 |
| Advisory Fees Paid, Amount | $ 112,407 |
| Investment Company Portfolio Turnover | 45% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 52 Total Advisory Fee $ Portfolio Turnover 45 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Utilities 50.6 Industrials 32.3 Information Technology 16.7 Common Stocks 99.6 Short-Term Investments and Net Other Assets (Liabilities) 0.4 ASSET ALLOCATION (% of Fund's net assets) United States 34.0 Spain 9.5 Denmark 9.0 China 8.8 Canada 7.5 New Zealand 4.8 Germany 4.5 Portugal 3.4 Austria 2.9 Others 15.6 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) GE Vernova Inc 5.4 First Solar Inc 4.2 Vestas Wind Systems A/S 4.1 Energias DE Portugal SA 3.4 Orsted AS 3.2 Enphase Energy Inc 3.2 Verbund AG Class A 2.9 Meridian Energy Ltd 2.7 Northland Power Inc 2.6 NEXTracker Inc Class A 2.6 34.3 |
| Fidelity Digital Health ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Digital Health ETF |
| Class Name | Fidelity® Digital Health ETF |
| Trading Symbol | FDHT |
| Security Exchange Name | CBOE |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Digital Health ETF for the period July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Digital Health ETF $ 0.40 % |
| Expenses Paid, Amount | $ 39 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • • • • • |
| 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-B280"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the life of Fund? CUMULATIVE PERFORMANCE October 5, 2021 through June 30, 2024. Initial investment of $10,000. Fidelity® Digital Health ETF $10,000 $7,401 $7,843 $7,332 Fidelity Digital Health Index℠ $10,000 $7,441 $7,913 $7,427 MSCI ACWI (All Country World Index) Index $10,000 $8,524 $9,970 $11,943 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year Life of Fund Fidelity® Digital Health ETF - NAV A -6.52% -10.72% Fidelity® Digital Health ETF - Market Price B -7.03% -11.24% Fidelity Digital Health Index℠ A -6.14% -10.30% MSCI ACWI (All Country World Index) Index A 19.79% 6.70% A From October 5, 2021 B From October 7, 2021, date initially listed on the Cboe BZX Exchange, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| Performance Inception Date | Oct. 05, 2021 |
| 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 redemption of fund shares. |
| Net Assets | $ 8,264,028 |
| Holdings Count | shares | 45 |
| Advisory Fees Paid, Amount | $ 35,407 |
| Investment Company Portfolio Turnover | 42% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 45 Total Advisory Fee $ Portfolio Turnover 42 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Health Care 87.4 Consumer Staples 6.2 Industrials 2.6 Information Technology 2.2 Communication Services 1.5 Common Stocks 99.9 Short-Term Investments and Net Other Assets (Liabilities) 0.1 ASSET ALLOCATION (% of Fund's net assets) United States 66.2 Australia 6.5 Netherlands 5.9 Switzerland 4.8 Japan 4.7 China 3.2 New Zealand 3.2 Denmark 2.2 Sweden 2.2 Others 1.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Intuitive Surgical Inc 4.9 Veeva Systems Inc Class A 4.5 Dexcom Inc 4.4 ResMed Inc 4.2 Koninklijke Philips NV 4.1 Insulet Corp 3.8 Cochlear Ltd 3.7 Sonova Holding AG 3.6 Fisher & Paykel Healthcare Corp Ltd 3.2 Pro Medicus Ltd 2.8 39.2 |
| Fidelity Enhanced Large Cap Core ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Enhanced Large Cap Core ETF |
| Class Name | Fidelity® Enhanced Large Cap Core ETF |
| Trading Symbol | FELC |
| Security Exchange Name | NYSEArca |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Enhanced Large Cap Core ETF for the period September 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Enhanced Large Cap Core ETF $ 0.23 % |
| Expenses Paid, Amount | $ 22 |
| Expense Ratio, Percent | 0.23% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • U.S. equities gained considerably for the 12 months ending June 30, 2024, driven by resilient corporate profits, a frenzy over generative artificial intelligence and the Federal Reserve's likely pivot to cutting interest rates later this year. Amid this favorable backdrop for higher-risk assets, stocks continued their late-2023 momentum, powered by signs of continued U.S. economic strength. • Against this backdrop, security selection was the primary contributor to the fund's performance versus the benchmark, especially within information technology. Stock selection in consumer discretionary, stock picks and an underweight in consumer staples, and picks and an overweight in communication services also boosted the fund's relative performance. • The top individual relative contributor was an overweight in Nvidia (+190%), which was the fund's largest holding at period end. An underweight in Tesla (-24%) and an overweight in Broadcom (+87%) also contributed. Broadcom was among the fund's biggest holdings. • In contrast, the biggest detractor from performance versus the benchmark was stock picking in health care, primarily within the pharmaceuticals, biotechnology & life sciences industry. Also hurting our result were security selection and an overweight in industrials, primarily within the capital goods industry, and stock picks and an underweight in energy. • The biggest individual relative detractor was our non-benchmark stake in Teradata (-36%). This period we increased our investment in the stock. Other notable relative detractors included an underweight in Eli Lilly (+94%) and a non-benchmark stake in Hawaiian Electric Industries (-54%). Hawaiian Electric was not held at period end. • Notable changes in positioning include increased exposure to communication services and a lower allocation to consumer discretionary. |
| 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-B309"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? CUMULATIVE PERFORMANCE June 30, 2014 through June 30, 2024. Initial investment of $10,000. Fidelity® Enhanced Large Cap Core ETF $10,000 $10,760 $10,860 $12,647 $14,756 $16,007 $17,193 $24,547 $22,411 $26,419 $33,271 S&P 500® Index $10,000 $10,742 $11,171 $13,170 $15,064 $16,633 $17,881 $25,175 $22,503 $26,912 $33,521 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year 5 Year 10 Year Fidelity® Enhanced Large Cap Core ETF - NAV 25.94% 15.76% 12.77% Fidelity® Enhanced Large Cap Core ETF - Market Price A 26.28% 15.82% 12.80% S&P 500® Index 24.56% 15.05% 12.86% A From November 20, 2023, date initially listed on the NYSE Arca, Inc. exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| 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 redemption of fund shares. |
| Net Assets | $ 2,911,234,375 |
| Holdings Count | shares | 201 |
| Advisory Fees Paid, Amount | $ 4,204,212 |
| Investment Company Portfolio Turnover | 58% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 201 Total Advisory Fee $ Portfolio Turnover 58 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Information Technology 31.7 Health Care 12.5 Financials 12.2 Communication Services 11.3 Industrials 9.9 Consumer Discretionary 9.7 Consumer Staples 4.3 Energy 3.0 Materials 2.4 Utilities 1.2 Real Estate 0.9 Common Stocks 99.1 Short-Term Investments and Net Other Assets (Liabilities) 0.9 ASSET ALLOCATION (% of Fund's net assets) United States 100.0 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) NVIDIA Corp 7.1 Apple Inc 7.1 Microsoft Corp 6.7 Amazon.com Inc 3.9 Meta Platforms Inc Class A 2.9 Alphabet Inc Class C 2.5 Alphabet Inc Class A 2.3 Berkshire Hathaway Inc Class B 2.1 Broadcom Inc 2.0 JPMorgan Chase & Co 1.8 38.4 |
| Material Fund Change [Text Block] | How has the Fund changed? This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses Fidelity Enhanced Large Cap Core ETF converted from Fidelity Enhanced Large Cap Core Index Fund on November 17, 2023. This move, approved by the Board of Trustees in June 2023, was deemed in the best interest of shareholders. The new ETF and its former corresponding fund have identical investment objectives and fundamental investment policies and have substantially similar investment strategies. Returns prior to the conversion are those of the former corresponding fund. Fidelity believes that the conversion will provide multiple benefits for investors of the fund, including lower net expenses, additional trading flexibility, increased portfolio holdings transparency and the potential for enhanced tax efficiency. Effective March 1, 2024, the fund's fiscal year end changed from August 31 to June 30. |
| Material Fund Change Expenses [Text Block] | The fees associated with this class changed during the reporting year. The variations in class fees are primarily the result of the following changes: • Management fee • Operating expenses |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since September 1, 2023. For more complete information, you may review the Fund's next prospectus, which we expect to be available by October 30, 2024 at fundresearch.fidelity.com/prospectus/sec or upon request at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments fidelity.com . |
| Updated Prospectus Phone Number | 1-800-FIDELITY</span>" id="sjs-B323"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-FIDELITY</span> |
| Updated Prospectus Email Address | fidfunddocuments@fidelity.com</span>" id="sjs-B324"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> |
| Updated Prospectus Web Address | fundresearch.fidelity.com/prospectus/sec</span>" id="sjs-B325"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> |
| Fidelity Crypto Industry and Digital Payments ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Crypto Industry and Digital Payments ETF |
| Class Name | Fidelity® Crypto Industry and Digital Payments ETF |
| Trading Symbol | FDIG |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Crypto Industry and Digital Payments ETF for the period July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Crypto Industry and Digital Payments ETF $ 0.40 % |
| Expenses Paid, Amount | $ 51 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • • • • • |
| 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-B342"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the life of Fund? CUMULATIVE PERFORMANCE April 19, 2022 through June 30, 2024. Initial investment of $10,000. Fidelity® Crypto Industry and Digital Payments ETF $10,000 $4,808 $7,450 Fidelity Crypto Industry and Digital Payments Index℠ $10,000 $4,812 $7,479 MSCI ACWI (All Country World Index) Index $10,000 $8,644 $10,111 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year Life of Fund Fidelity® Crypto Industry and Digital Payments ETF - NAV A 52.67% 6.02% Fidelity® Crypto Industry and Digital Payments ETF - Market Price B 52.59% 10.97% Fidelity Crypto Industry and Digital Payments Index℠ A 53.31% 6.42% MSCI ACWI (All Country World Index) Index A 19.79% 9.10% A From April 19, 2022 B From April 21, 2022, date initially listed on the NASDAQ/NMS Global Market exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| Performance Inception Date | Apr. 19, 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 redemption of fund shares. |
| Net Assets | $ 103,792,520 |
| Holdings Count | shares | 39 |
| Advisory Fees Paid, Amount | $ 267,622 |
| Investment Company Portfolio Turnover | 53% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 39 Total Advisory Fee $ Portfolio Turnover 53 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Information Technology 58.6 Financials 41.3 Common Stocks 99.9 Short-Term Investments and Net Other Assets (Liabilities) 0.1 ASSET ALLOCATION (% of Fund's net assets) United States 62.7 Canada 13.8 China 5.0 Australia 4.7 Brazil 3.0 France 2.5 Germany 2.1 Japan 1.6 Italy 1.4 Others 3.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Coinbase Global Inc Class A 11.2 Marathon Digital Holdings Inc 9.3 Cleanspark Inc 6.8 Terawulf Inc 5.2 Riot Platforms Inc 5.2 Hut 8 Corp (United States) 4.8 Iris Energy Ltd 4.7 Bitfarms Ltd/Canada (United States) 3.6 Core Scientific Inc 3.5 Cipher Mining Inc 2.9 57.2 |
| Fidelity Metaverse ETF | |
| Shareholder Report [Line Items] | |
| Fund Name | Fidelity® Metaverse ETF |
| Class Name | Fidelity® Metaverse ETF |
| Trading Symbol | FMET |
| Security Exchange Name | NASDAQ |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains information about Fidelity® Metaverse ETF for the period July 1, 2023 to June 30, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-FIDELITY or by sending an e-mail to fidfunddocuments@fidelity.com. |
| Additional Information Phone Number | 1-800-FIDELITY |
| Additional Information Email | fidfunddocuments@fidelity.com |
| Additional Information Website | fundresearch.fidelity.com/prospectus/sec |
| Expenses [Text Block] | What were your Fund costs for the last year? (based on hypothetical $10,000 investment) FUND COST (PREVIOUS YEAR) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Fidelity® Metaverse ETF $ 0.40 % |
| Expenses Paid, Amount | $ 44 |
| Expense Ratio, Percent | 0.40% |
| Factors Affecting Performance [Text Block] | What affected the Fund's performance this period? • • • • • |
| 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-B370"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> |
| Line Graph [Table Text Block] | How did the Fund perform over the life of Fund? CUMULATIVE PERFORMANCE April 19, 2022 through June 30, 2024. Initial investment of $10,000. Fidelity® Metaverse ETF $10,000 $8,433 $10,209 Fidelity Metaverse Index℠ $10,000 $8,444 $10,274 MSCI ACWI (All Country World Index) Index $10,000 $8,644 $10,111 2022 2023 2024 |
| Average Annual Return [Table Text Block] | AVERAGE ANNUAL TOTAL RETURNS: 1 Year Life of Fund Fidelity® Metaverse ETF - NAV A 19.25% 9.36% Fidelity® Metaverse ETF - Market Price B 18.53% 11.61% Fidelity Metaverse Index℠ A 19.79% 9.89% MSCI ACWI (All Country World Index) Index A 19.79% 9.10% A From April 19, 2022 B From April 21, 2022, date initially listed on the NASDAQ/NMS Global Market exchange Visit www.fidelity.com for more recent performance information. 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 redemption of fund shares. |
| Performance Inception Date | Apr. 19, 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 redemption of fund shares. |
| Net Assets | $ 33,559,600 |
| Holdings Count | shares | 51 |
| Advisory Fees Paid, Amount | $ 93,953 |
| Investment Company Portfolio Turnover | 52% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics (as of June 30, 2024) KEY FACTS Fund Size $ Number of Holdings 51 Total Advisory Fee $ Portfolio Turnover 52 % |
| Holdings [Text Block] | MARKET SECTORS (% of Fund's net assets) Information Technology 56.8 Communication Services 36.9 Real Estate 6.1 Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets) United States 73.1 China 10.5 Korea (South) 9.9 France 2.7 Japan 1.4 Sweden 0.8 United Kingdom 0.8 Taiwan 0.8 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets) |
| Largest Holdings [Text Block] | TOP HOLDINGS (% of Fund's net assets) Adobe Inc 5.0 Samsung Electronics Co Ltd 4.8 Apple Inc 4.7 Microsoft Corp 4.6 Alphabet Inc Class A 4.6 Tencent Holdings Ltd 4.5 Meta Platforms Inc Class A 4.5 NVIDIA Corp 4.4 Advanced Micro Devices Inc 4.3 QUALCOMM Inc 4.0 45.4 |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 36 Months Ended | 48 Months Ended | 60 Months Ended | 120 Months Ended | 132 Months Ended | ||||||||||
| Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014 | |
| C000244837_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 23.88% | |||||||||||||||
| C000244837_1_BBIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.61% | |||||||||||||||
| C000244837_1_BBIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.51% | |||||||||||||||
| C000244838_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 23.13% | |||||||||||||||
| C000244838_1_BBIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.14% | |||||||||||||||
| C000244838_1_BBIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.15% | |||||||||||||||
| C000244834_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 23.13% | |||||||||||||||
| C000244834_1_BBIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.14% | |||||||||||||||
| C000244834_1_BBIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.15% | |||||||||||||||
| C000244833_0_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 11.79% | |||||||||||||||
| C000244833_0_BBIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.69% | |||||||||||||||
| C000244833_0_BBIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 4.54% | |||||||||||||||
| C000244836_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 23.88% | |||||||||||||||
| C000244836_1_BBIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.61% | |||||||||||||||
| C000244836_1_BBIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.51% | |||||||||||||||
| C000230603_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000230603_1_BBIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.70% | |||||||||||||||
| C000230605_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000230605_1_BBIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.70% | |||||||||||||||
| C000230602_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000230602_1_BBIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.70% | |||||||||||||||
| C000230604_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000230604_1_BBIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.70% | |||||||||||||||
| C000244835_0_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 24.56% | |||||||||||||||
| C000244835_0_BBIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 15.05% | |||||||||||||||
| C000244835_0_BBIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.86% | |||||||||||||||
| C000235243_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000235243_1_BBIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.10% | |||||||||||||||
| C000235244_1_BBIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000235244_1_BBIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.10% | |||||||||||||||
| C000244837_LG_ClassMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Enhanced Large Cap Value ETF</span>" id="sjs-G95"><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_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,000 | |||||||||||||||
| C000244837_ClassMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,508 | |||||||||||||||
| C000244837_ClassMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,610 | |||||||||||||||
| C000244837_ClassMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 12,338 | |||||||||||||||
| C000244837_ClassMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 13,594 | |||||||||||||||
| C000244837_ClassMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 14,453 | |||||||||||||||
| C000244837_ClassMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 13,310 | |||||||||||||||
| C000244837_ClassMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 19,669 | |||||||||||||||
| C000244837_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 18,695 | |||||||||||||||
| C000244837_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 20,608 | |||||||||||||||
| C000244837_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 23,575 | $ 23,575 | $ 23,575 | $ 23,575 | $ 23,575 | $ 23,575 | ||||||||||
| C000244837_LG_1_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 1000® Value Index</span>" id="sjs-G131"><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_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,413 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,711 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,375 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,212 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,331 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,064 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 18,771 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,491 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 19,509 | |||||||||||||||
| C000244837_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 22,057 | 22,057 | 22,057 | 22,057 | 22,057 | $ 22,057 | ||||||||||
| C000244837_LG_2_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 1000® Index</span>" id="sjs-G167"><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_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,737 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,052 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,044 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,941 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,438 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,667 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 25,277 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,982 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 26,239 | |||||||||||||||
| C000244837_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 32,504 | 32,504 | 32,504 | $ 32,504 | $ 32,504 | $ 32,504 | ||||||||||
| C000244837_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.40% | |||||||||||||||
| C000244837_NoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 10.28% | |||||||||||||||
| C000244837_NoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 8.95% | |||||||||||||||
| C000244837_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.60% | |||||||||||||||
| C000244837_ETFNoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 10.32% | |||||||||||||||
| C000244837_ETFNoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 8.97% | |||||||||||||||
| C000244837_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 13.06% | |||||||||||||||
| C000244837_0_AdditionalIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.01% | |||||||||||||||
| C000244837_0_AdditionalIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 8.23% | |||||||||||||||
| C000244838_LG_ClassMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Enhanced Small Cap ETF</span>" id="sjs-G230"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Small Cap ETF</span> | |||||||||||||||
| C000244838_ClassMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244838_ClassMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,945 | |||||||||||||||
| C000244838_ClassMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,250 | |||||||||||||||
| C000244838_ClassMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,504 | |||||||||||||||
| C000244838_ClassMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,173 | |||||||||||||||
| C000244838_ClassMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,493 | |||||||||||||||
| C000244838_ClassMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,195 | |||||||||||||||
| C000244838_ClassMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 20,519 | |||||||||||||||
| C000244838_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 15,971 | |||||||||||||||
| C000244838_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 18,451 | |||||||||||||||
| C000244838_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 21,069 | 21,069 | 21,069 | $ 21,069 | $ 21,069 | $ 21,069 | ||||||||||
| C000244838_LG_1_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 2000® Index</span>" id="sjs-G266"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 2000® Index</span> | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,649 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,932 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,375 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,549 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,067 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,135 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,283 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 15,920 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,879 | |||||||||||||||
| C000244838_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 19,677 | 19,677 | 19,677 | 19,677 | 19,677 | $ 19,677 | ||||||||||
| C000244838_LG_2_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 3000® Index</span>" id="sjs-G302"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 3000® Index</span> | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,729 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,959 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,987 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,907 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,246 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,306 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 24,950 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,490 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 25,563 | |||||||||||||||
| C000244838_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 31,475 | 31,475 | 31,475 | $ 31,475 | $ 31,475 | $ 31,475 | ||||||||||
| C000244838_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.19% | |||||||||||||||
| C000244838_NoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.32% | |||||||||||||||
| C000244838_NoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 7.74% | |||||||||||||||
| C000244838_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.29% | |||||||||||||||
| C000244838_ETFNoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.34% | |||||||||||||||
| C000244838_ETFNoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 7.75% | |||||||||||||||
| C000244838_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 10.06% | |||||||||||||||
| C000244838_0_AdditionalIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.94% | |||||||||||||||
| C000244838_0_AdditionalIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 7% | |||||||||||||||
| C000244834_LG_ClassMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Enhanced Mid Cap ETF</span>" id="sjs-G365"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Mid Cap ETF</span> | |||||||||||||||
| C000244834_ClassMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244834_ClassMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,845 | |||||||||||||||
| C000244834_ClassMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,548 | |||||||||||||||
| C000244834_ClassMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,433 | |||||||||||||||
| C000244834_ClassMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,862 | |||||||||||||||
| C000244834_ClassMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,491 | |||||||||||||||
| C000244834_ClassMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,067 | |||||||||||||||
| C000244834_ClassMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,084 | |||||||||||||||
| C000244834_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,942 | |||||||||||||||
| C000244834_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 20,616 | |||||||||||||||
| C000244834_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 23,962 | 23,962 | 23,962 | $ 23,962 | $ 23,962 | $ 23,962 | ||||||||||
| C000244834_LG_1_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell Midcap® Index</span>" id="sjs-G401"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell Midcap® Index</span> | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,663 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,723 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,490 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,030 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 15,128 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,789 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 22,154 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 18,322 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,057 | |||||||||||||||
| C000244834_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 23,768 | 23,768 | 23,768 | 23,768 | 23,768 | $ 23,768 | ||||||||||
| C000244834_LG_2_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 3000® Index</span>" id="sjs-G437"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 3000® Index</span> | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,729 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,959 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,987 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,907 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,246 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,306 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 24,950 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,490 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 25,563 | |||||||||||||||
| C000244834_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 31,475 | 31,475 | 31,475 | $ 31,475 | $ 31,475 | $ 31,475 | ||||||||||
| C000244834_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 16.23% | |||||||||||||||
| C000244834_NoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 10.58% | |||||||||||||||
| C000244834_NoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.13% | |||||||||||||||
| C000244834_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 16.35% | |||||||||||||||
| C000244834_ETFNoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 10.61% | |||||||||||||||
| C000244834_ETFNoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.14% | |||||||||||||||
| C000244834_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.88% | |||||||||||||||
| C000244834_0_AdditionalIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.46% | |||||||||||||||
| C000244834_0_AdditionalIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.04% | |||||||||||||||
| C000244833_LG_ClassMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Enhanced International ETF</span>" id="sjs-G500"><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_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244833_ClassMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,777 | |||||||||||||||
| C000244833_ClassMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,838 | |||||||||||||||
| C000244833_ClassMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,792 | |||||||||||||||
| C000244833_ClassMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,596 | |||||||||||||||
| C000244833_ClassMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,445 | |||||||||||||||
| C000244833_ClassMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,724 | |||||||||||||||
| C000244833_ClassMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,351 | |||||||||||||||
| C000244833_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,777 | |||||||||||||||
| C000244833_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,983 | |||||||||||||||
| C000244833_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 16,016 | 16,016 | 16,016 | $ 16,016 | $ 16,016 | $ 16,016 | ||||||||||
| C000244833_LG_1_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index</span>" id="sjs-G536"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">MSCI EAFE Index</span> | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,591 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,633 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,403 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,139 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,285 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,726 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,222 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,721 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,952 | |||||||||||||||
| C000244833_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 15,596 | 15,596 | 15,596 | $ 15,596 | $ 15,596 | $ 15,596 | ||||||||||
| C000244833_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.54% | |||||||||||||||
| C000244833_NoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.95% | |||||||||||||||
| C000244833_NoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 4.82% | |||||||||||||||
| C000244833_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 14.45% | |||||||||||||||
| C000244833_ETFNoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.94% | |||||||||||||||
| C000244833_ETFNoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 4.81% | |||||||||||||||
| C000244836_LG_ClassMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Enhanced Large Cap Growth ETF</span>" id="sjs-G590"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Large Cap Growth ETF</span> | |||||||||||||||
| C000244836_ClassMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244836_ClassMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,094 | |||||||||||||||
| C000244836_ClassMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,159 | |||||||||||||||
| C000244836_ClassMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,221 | |||||||||||||||
| C000244836_ClassMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,059 | |||||||||||||||
| C000244836_ClassMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,436 | |||||||||||||||
| C000244836_ClassMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,164 | |||||||||||||||
| C000244836_ClassMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 30,479 | |||||||||||||||
| C000244836_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 25,359 | |||||||||||||||
| C000244836_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 31,510 | |||||||||||||||
| C000244836_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 42,642 | 42,642 | 42,642 | $ 42,642 | $ 42,642 | $ 42,642 | ||||||||||
| C000244836_LG_1_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 1000® Growth Index</span>" id="sjs-G626"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 1000® Growth Index</span> | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,056 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,390 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,716 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,804 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 18,746 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 23,110 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 32,932 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 26,749 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 34,000 | |||||||||||||||
| C000244836_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 45,384 | 45,384 | 45,384 | 45,384 | 45,384 | $ 45,384 | ||||||||||
| C000244836_LG_2_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Russell 1000® Index</span>" id="sjs-G662"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Russell 1000® Index</span> | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,737 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 11,052 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 13,044 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,941 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,438 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,667 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 25,277 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 21,982 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 26,239 | |||||||||||||||
| C000244836_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 32,504 | 32,504 | $ 32,504 | $ 32,504 | $ 32,504 | $ 32,504 | ||||||||||
| C000244836_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 35.33% | |||||||||||||||
| C000244836_NoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.59% | |||||||||||||||
| C000244836_NoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 15.61% | |||||||||||||||
| C000244836_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 35.76% | |||||||||||||||
| C000244836_ETFNoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.66% | |||||||||||||||
| C000244836_ETFNoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 15.64% | |||||||||||||||
| C000244836_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 33.48% | |||||||||||||||
| C000244836_0_AdditionalIndexMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.34% | |||||||||||||||
| C000244836_0_AdditionalIndexMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 16.33% | |||||||||||||||
| C000230603_LG_ClassMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Cloud Computing ETF</span>" id="sjs-D725"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230603_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 6,331 | |||||||||||||||
| C000230603_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,755 | |||||||||||||||
| C000230603_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 9,629 | 9,629 | $ 9,629 | $ 9,629 | $ 9,629 | 9,629 | ||||||||||
| C000230603_LG_1_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity Cloud Computing Index℠</span>" id="sjs-D740"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230603_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 6,385 | |||||||||||||||
| C000230603_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,854 | |||||||||||||||
| C000230603_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,710 | 9,710 | $ 9,710 | 9,710 | 9,710 | 9,710 | ||||||||||
| C000230603_LG_2_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI (All Country World Index) Index</span>" id="sjs-D755"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230603_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,524 | |||||||||||||||
| C000230603_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,970 | |||||||||||||||
| C000230603_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 11,943 | 11,943 | $ 11,943 | 11,943 | 11,943 | 11,943 | ||||||||||
| C000230603_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 24.16% | |||||||||||||||
| C000230603_NoLoadClassMember_2023-07-01_2024-06-30Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (1.37%) | |||||||||||||||
| C000230603_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 24.03% | |||||||||||||||
| C000230603_ETFNoLoadClassMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (1.89%) | |||||||||||||||
| C000230603_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 23.63% | |||||||||||||||
| C000230603_0_AdditionalIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (1.07%) | |||||||||||||||
| C000230605_LG_ClassMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Electric Vehicles and Future Transportation ETF</span>" id="sjs-D788"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230605_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,085 | |||||||||||||||
| C000230605_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,607 | |||||||||||||||
| C000230605_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 5,359 | 5,359 | $ 5,359 | 5,359 | 5,359 | 5,359 | ||||||||||
| C000230605_LG_1_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity Electric Vehicles and Future Transportation Index℠</span>" id="sjs-D803"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230605_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,184 | |||||||||||||||
| C000230605_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,751 | |||||||||||||||
| C000230605_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 5,483 | 5,483 | $ 5,483 | 5,483 | 5,483 | 5,483 | ||||||||||
| C000230605_LG_2_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI (All Country World Index) Index</span>" id="sjs-D818"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230605_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,524 | |||||||||||||||
| C000230605_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,970 | |||||||||||||||
| C000230605_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 11,943 | 11,943 | $ 11,943 | 11,943 | 11,943 | 11,943 | ||||||||||
| C000230605_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (29.55%) | |||||||||||||||
| C000230605_NoLoadClassMember_2023-07-01_2024-06-30Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (20.38%) | |||||||||||||||
| C000230605_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (30.25%) | |||||||||||||||
| C000230605_ETFNoLoadClassMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (21.12%) | |||||||||||||||
| C000230605_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (29.25%) | |||||||||||||||
| C000230605_0_AdditionalIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (19.71%) | |||||||||||||||
| C000230602_LG_ClassMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Clean Energy ETF</span>" id="sjs-D851"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230602_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,388 | |||||||||||||||
| C000230602_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,397 | |||||||||||||||
| C000230602_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 5,931 | 5,931 | $ 5,931 | 5,931 | 5,931 | 5,931 | ||||||||||
| C000230602_LG_1_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity Clean Energy Index℠</span>" id="sjs-D866"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230602_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,508 | |||||||||||||||
| C000230602_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,539 | |||||||||||||||
| C000230602_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 6,049 | 6,049 | $ 6,049 | 6,049 | 6,049 | 6,049 | ||||||||||
| C000230602_LG_2_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI (All Country World Index) Index</span>" id="sjs-D881"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230602_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,524 | |||||||||||||||
| C000230602_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,970 | |||||||||||||||
| C000230602_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 11,943 | 11,943 | $ 11,943 | 11,943 | 11,943 | 11,943 | ||||||||||
| C000230602_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (29.37%) | |||||||||||||||
| C000230602_NoLoadClassMember_2023-07-01_2024-06-30Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (17.38%) | |||||||||||||||
| C000230602_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (29.77%) | |||||||||||||||
| C000230602_ETFNoLoadClassMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (17.94%) | |||||||||||||||
| C000230602_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (29.16%) | |||||||||||||||
| C000230602_0_AdditionalIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (16.78%) | |||||||||||||||
| C000230604_LG_ClassMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Digital Health ETF</span>" id="sjs-D914"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230604_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,401 | |||||||||||||||
| C000230604_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,843 | |||||||||||||||
| C000230604_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 7,332 | 7,332 | $ 7,332 | 7,332 | 7,332 | 7,332 | ||||||||||
| C000230604_LG_1_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity Digital Health Index℠</span>" id="sjs-D929"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230604_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,441 | |||||||||||||||
| C000230604_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,913 | |||||||||||||||
| C000230604_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,427 | 7,427 | $ 7,427 | 7,427 | 7,427 | 7,427 | ||||||||||
| C000230604_LG_2_AdditionalIndexMember_4YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI (All Country World Index) Index</span>" id="sjs-D944"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000230604_2_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,524 | |||||||||||||||
| C000230604_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 9,970 | |||||||||||||||
| C000230604_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 11,943 | 11,943 | $ 11,943 | 11,943 | 11,943 | $ 11,943 | ||||||||||
| C000230604_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (6.52%) | |||||||||||||||
| C000230604_NoLoadClassMember_2023-07-01_2024-06-30Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (10.72%) | |||||||||||||||
| C000230604_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (7.03%) | |||||||||||||||
| C000230604_ETFNoLoadClassMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (11.24%) | |||||||||||||||
| C000230604_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (6.14%) | |||||||||||||||
| C000230604_0_AdditionalIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | (10.30%) | |||||||||||||||
| C000244835_LG_ClassMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Enhanced Large Cap Core ETF</span>" id="sjs-G977"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Enhanced Large Cap Core ETF</span> | |||||||||||||||
| C000244835_ClassMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000244835_ClassMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,760 | |||||||||||||||
| C000244835_ClassMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,860 | |||||||||||||||
| C000244835_ClassMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 12,647 | |||||||||||||||
| C000244835_ClassMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 14,756 | |||||||||||||||
| C000244835_ClassMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 16,007 | |||||||||||||||
| C000244835_ClassMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 17,193 | |||||||||||||||
| C000244835_ClassMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 24,547 | |||||||||||||||
| C000244835_ClassMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 22,411 | |||||||||||||||
| C000244835_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 26,419 | |||||||||||||||
| C000244835_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 33,271 | 33,271 | 33,271 | 33,271 | 33,271 | $ 33,271 | ||||||||||
| C000244835_LG_1_AdditionalIndexMember_11YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | S&P 500® Index</span>" id="sjs-G1013"><span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&P 500® Index</span> | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2014Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,000 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2015Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,742 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2016Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 11,171 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2017Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 13,170 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2018Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 15,064 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2019Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 16,633 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2020Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 17,881 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2021Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 25,175 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2022Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 22,503 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 26,912 | |||||||||||||||
| C000244835_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 33,521 | $ 33,521 | 33,521 | $ 33,521 | $ 33,521 | $ 33,521 | ||||||||||
| C000244835_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 25.94% | |||||||||||||||
| C000244835_NoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 15.76% | |||||||||||||||
| C000244835_NoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.77% | |||||||||||||||
| C000244835_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 26.28% | |||||||||||||||
| C000244835_ETFNoLoadClassMember_5YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 15.82% | |||||||||||||||
| C000244835_ETFNoLoadClassMember_10YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 12.80% | |||||||||||||||
| C000235243_LG_ClassMember_3YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Crypto Industry and Digital Payments ETF</span>" id="sjs-C1067"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000235243_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 4,808 | |||||||||||||||
| C000235243_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 7,450 | $ 7,450 | 7,450 | $ 7,450 | $ 7,450 | 7,450 | ||||||||||
| C000235243_LG_1_AdditionalIndexMember_3YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity Crypto Industry and Digital Payments Index℠</span>" id="sjs-C1079"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000235243_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 4,812 | |||||||||||||||
| C000235243_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 7,479 | $ 7,479 | 7,479 | 7,479 | 7,479 | 7,479 | ||||||||||
| C000235243_LG_2_AdditionalIndexMember_3YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI (All Country World Index) Index</span>" id="sjs-C1091"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000235243_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,644 | |||||||||||||||
| C000235243_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,111 | $ 10,111 | 10,111 | 10,111 | 10,111 | 10,111 | ||||||||||
| C000235243_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 52.67% | |||||||||||||||
| C000235243_NoLoadClassMember_2023-07-01_2024-06-30Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.02% | |||||||||||||||
| C000235243_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 52.59% | |||||||||||||||
| C000235243_ETFNoLoadClassMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 10.97% | |||||||||||||||
| C000235243_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 53.31% | |||||||||||||||
| C000235243_0_AdditionalIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 6.42% | |||||||||||||||
| C000235244_LG_ClassMember_3YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity® Metaverse ETF</span>" id="sjs-C1121"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000235244_ClassMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,433 | |||||||||||||||
| C000235244_ClassMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,209 | $ 10,209 | 10,209 | 10,209 | 10,209 | 10,209 | ||||||||||
| C000235244_LG_1_AdditionalIndexMember_3YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | Fidelity Metaverse Index℠</span>" id="sjs-C1133"><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] | ||||||||||||||||
| Account Value | 10,000 | |||||||||||||||
| C000235244_1_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 8,444 | |||||||||||||||
| C000235244_1_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | 10,274 | $ 10,274 | 10,274 | 10,274 | 10,274 | 10,274 | ||||||||||
| C000235244_LG_2_AdditionalIndexMember_3YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Line Graph and Table Measure Name | MSCI ACWI (All Country World Index) Index</span>" id="sjs-C1145"><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] | ||||||||||||||||
| Account Value | $ 10,000 | |||||||||||||||
| C000235244_2_AdditionalIndexMember_AsOf_2023Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 8,644 | |||||||||||||||
| C000235244_2_AdditionalIndexMember_AsOf_2024Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Account Value | $ 10,111 | $ 10,111 | $ 10,111 | $ 10,111 | $ 10,111 | $ 10,111 | ||||||||||
| C000235244_NoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.25% | |||||||||||||||
| C000235244_NoLoadClassMember_2023-07-01_2024-06-30Member | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.36% | |||||||||||||||
| C000235244_ETFNoLoadClassMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 18.53% | |||||||||||||||
| C000235244_ETFNoLoadClassMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 11.61% | |||||||||||||||
| C000235244_0_AdditionalIndexMember_1YRMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 19.79% | |||||||||||||||
| C000235244_0_AdditionalIndexMember_LOCMember | ||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||
| Average Annual Return, Percent | 9.89% |
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 |
| Fidelity Enhanced Large Cap Value ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Fidelity Enhanced Large Cap Value ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Fidelity Enhanced Large Cap Value ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Fidelity Enhanced Large Cap Value ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Fidelity Enhanced Large Cap Value ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Fidelity Enhanced Large Cap Value ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| Fidelity Enhanced Large Cap Value ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| Fidelity Enhanced Large Cap Value ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.30% |
| Fidelity Enhanced Large Cap Value ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Fidelity Enhanced Large Cap Value ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Fidelity Enhanced Large Cap Value ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.40% |
| Fidelity Enhanced Large Cap Value ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.80% |
| Fidelity Enhanced Large Cap Value ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.30% |
| Fidelity Enhanced Large Cap Value ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Fidelity Enhanced Large Cap Value ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.30% |
| Fidelity Enhanced Large Cap Value ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| Fidelity Enhanced Large Cap Value ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| Fidelity Enhanced Large Cap Value ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.30% |
| Fidelity Enhanced Large Cap Value ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Fidelity Enhanced Large Cap Value ETF | Energy Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| Fidelity Enhanced Large Cap Value ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Fidelity Enhanced Large Cap Value ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100% |
| Fidelity Enhanced Large Cap Value ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.30% |
| Fidelity Enhanced Large Cap Value ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| Fidelity Enhanced Small Cap ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Small Cap ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Small Cap ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Enhanced Small Cap ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Enhanced Small Cap ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.10% |
| Fidelity Enhanced Small Cap ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.90% |
| Fidelity Enhanced Small Cap ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.90% |
| Fidelity Enhanced Small Cap ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Fidelity Enhanced Small Cap ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19% |
| Fidelity Enhanced Small Cap ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Fidelity Enhanced Small Cap ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.30% |
| Fidelity Enhanced Small Cap ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Fidelity Enhanced Small Cap ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Fidelity Enhanced Small Cap ETF | Energy Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.70% |
| Fidelity Enhanced Small Cap ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| Fidelity Enhanced Small Cap ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 97.30% |
| Fidelity Enhanced Small Cap ETF | Thailand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Small Cap ETF | Ireland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | Puerto Rico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| Fidelity Enhanced Small Cap ETF | Monaco | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| Fidelity Enhanced Small Cap ETF | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| Fidelity Enhanced Small Cap ETF | Norway | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| Fidelity Enhanced Small Cap ETF | Israel | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| Fidelity Enhanced Small Cap ETF | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| Fidelity Enhanced Small Cap ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 98% |
| Fidelity Enhanced Small Cap ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Fidelity Enhanced Mid Cap ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| Fidelity Enhanced Mid Cap ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| Fidelity Enhanced Mid Cap ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1% |
| Fidelity Enhanced Mid Cap ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Mid Cap ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Mid Cap ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Mid Cap ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Mid Cap ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Mid Cap ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Enhanced Mid Cap ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Enhanced Mid Cap ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.40% |
| Fidelity Enhanced Mid Cap ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 14.80% |
| Fidelity Enhanced Mid Cap ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Fidelity Enhanced Mid Cap ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| Fidelity Enhanced Mid Cap ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.90% |
| Fidelity Enhanced Mid Cap ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.30% |
| Fidelity Enhanced Mid Cap ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.10% |
| Fidelity Enhanced Mid Cap ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Fidelity Enhanced Mid Cap ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| Fidelity Enhanced Mid Cap ETF | Energy Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| Fidelity Enhanced Mid Cap ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Fidelity Enhanced Mid Cap ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.70% |
| Fidelity Enhanced Mid Cap ETF | Israel | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.30% |
| Fidelity Enhanced Mid Cap ETF | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| Fidelity Enhanced Mid Cap ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.20% |
| Fidelity Enhanced Mid Cap ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Enhanced International ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Fidelity Enhanced International ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Fidelity Enhanced International ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Fidelity Enhanced International ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Fidelity Enhanced International ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Fidelity Enhanced International ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| Fidelity Enhanced International ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Fidelity Enhanced International ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Fidelity Enhanced International ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Fidelity Enhanced International ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Fidelity Enhanced International ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.10% |
| Fidelity Enhanced International ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Fidelity Enhanced International ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.80% |
| Fidelity Enhanced International ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| Fidelity Enhanced International ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.70% |
| Fidelity Enhanced International ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| Fidelity Enhanced International ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| Fidelity Enhanced International ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Fidelity Enhanced International ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Fidelity Enhanced International ETF | Energy Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Enhanced International ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Fidelity Enhanced International ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.10% |
| Fidelity Enhanced International ETF | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Fidelity Enhanced International ETF | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.90% |
| Fidelity Enhanced International ETF | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.10% |
| Fidelity Enhanced International ETF | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.20% |
| Fidelity Enhanced International ETF | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Fidelity Enhanced International ETF | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| Fidelity Enhanced International ETF | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.60% |
| Fidelity Enhanced International ETF | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Fidelity Enhanced International ETF | OtherMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18% |
| Fidelity Enhanced International ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 97.80% |
| Fidelity Enhanced International ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| Fidelity Enhanced International ETF | AAPreferredStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| Fidelity Enhanced Large Cap Growth ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.70% |
| Fidelity Enhanced Large Cap Growth ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.30% |
| Fidelity Enhanced Large Cap Growth ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Fidelity Enhanced Large Cap Growth ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| Fidelity Enhanced Large Cap Growth ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| Fidelity Enhanced Large Cap Growth ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Fidelity Enhanced Large Cap Growth ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Fidelity Enhanced Large Cap Growth ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Enhanced Large Cap Growth ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Fidelity Enhanced Large Cap Growth ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Fidelity Enhanced Large Cap Growth ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| Fidelity Enhanced Large Cap Growth ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 49.10% |
| Fidelity Enhanced Large Cap Growth ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.90% |
| Fidelity Enhanced Large Cap Growth ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| Fidelity Enhanced Large Cap Growth ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Fidelity Enhanced Large Cap Growth ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.30% |
| Fidelity Enhanced Large Cap Growth ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| Fidelity Enhanced Large Cap Growth ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.40% |
| Fidelity Enhanced Large Cap Growth ETF | Energy Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Fidelity Enhanced Large Cap Growth ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.50% |
| Fidelity Enhanced Large Cap Growth ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| Fidelity Enhanced Large Cap Growth ETF | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| Fidelity Enhanced Large Cap Growth ETF | Mexico | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| Fidelity Enhanced Large Cap Growth ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.40% |
| Fidelity Enhanced Large Cap Growth ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.60% |
| Fidelity Cloud Computing ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Fidelity Cloud Computing ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Fidelity Cloud Computing ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| Fidelity Cloud Computing ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Fidelity Cloud Computing ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Fidelity Cloud Computing ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.30% |
| Fidelity Cloud Computing ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Cloud Computing ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Cloud Computing ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Cloud Computing ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Fidelity Cloud Computing ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 92.30% |
| Fidelity Cloud Computing ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Fidelity Cloud Computing ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Fidelity Cloud Computing ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 93.70% |
| Fidelity Cloud Computing ETF | Israel | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Cloud Computing ETF | New Zealand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Fidelity Cloud Computing ETF | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Fidelity Cloud Computing ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100% |
| Fidelity Cloud Computing ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.50% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.30% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Electric Vehicles and Future Transportation ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Fidelity Electric Vehicles and Future Transportation ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 33.50% |
| Fidelity Electric Vehicles and Future Transportation ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.60% |
| Fidelity Electric Vehicles and Future Transportation ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8% |
| Fidelity Electric Vehicles and Future Transportation ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 39.70% |
| Fidelity Electric Vehicles and Future Transportation ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 55.20% |
| Fidelity Electric Vehicles and Future Transportation ETF | Israel | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| Fidelity Electric Vehicles and Future Transportation ETF | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Electric Vehicles and Future Transportation ETF | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| Fidelity Electric Vehicles and Future Transportation ETF | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Fidelity Electric Vehicles and Future Transportation ETF | OtherMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Electric Vehicles and Future Transportation ETF | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.70% |
| Fidelity Electric Vehicles and Future Transportation ETF | Korea, Republic of | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.50% |
| Fidelity Electric Vehicles and Future Transportation ETF | Singapore | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Fidelity Electric Vehicles and Future Transportation ETF | BailiwickOfJerseyMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Fidelity Electric Vehicles and Future Transportation ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| Fidelity Electric Vehicles and Future Transportation ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
| Fidelity Clean Energy ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.40% |
| Fidelity Clean Energy ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| Fidelity Clean Energy ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Fidelity Clean Energy ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Clean Energy ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Fidelity Clean Energy ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Fidelity Clean Energy ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Clean Energy ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Fidelity Clean Energy ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Fidelity Clean Energy ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Fidelity Clean Energy ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 16.70% |
| Fidelity Clean Energy ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 32.30% |
| Fidelity Clean Energy ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 50.60% |
| Fidelity Clean Energy ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 34% |
| Fidelity Clean Energy ETF | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.50% |
| Fidelity Clean Energy ETF | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Fidelity Clean Energy ETF | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9% |
| Fidelity Clean Energy ETF | OtherMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 15.60% |
| Fidelity Clean Energy ETF | New Zealand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Fidelity Clean Energy ETF | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.80% |
| Fidelity Clean Energy ETF | Spain | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.50% |
| Fidelity Clean Energy ETF | Portugal | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Fidelity Clean Energy ETF | Austria | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Clean Energy ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.60% |
| Fidelity Clean Energy ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.40% |
| Fidelity Digital Health ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.90% |
| Fidelity Digital Health ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Fidelity Digital Health ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| Fidelity Digital Health ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.20% |
| Fidelity Digital Health ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Fidelity Digital Health ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.80% |
| Fidelity Digital Health ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.70% |
| Fidelity Digital Health ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| Fidelity Digital Health ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Fidelity Digital Health ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.80% |
| Fidelity Digital Health ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| Fidelity Digital Health ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 87.40% |
| Fidelity Digital Health ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.60% |
| Fidelity Digital Health ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Fidelity Digital Health ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Fidelity Digital Health ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 66.20% |
| Fidelity Digital Health ETF | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| Fidelity Digital Health ETF | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.50% |
| Fidelity Digital Health ETF | Netherlands | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.90% |
| Fidelity Digital Health ETF | Switzerland | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Fidelity Digital Health ETF | Denmark | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| Fidelity Digital Health ETF | OtherMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| Fidelity Digital Health ETF | New Zealand | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Fidelity Digital Health ETF | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Fidelity Digital Health ETF | Sweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.20% |
| Fidelity Digital Health ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.90% |
| Fidelity Digital Health ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| Fidelity Enhanced Large Cap Core ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| Fidelity Enhanced Large Cap Core ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.10% |
| Fidelity Enhanced Large Cap Core ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.70% |
| Fidelity Enhanced Large Cap Core ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.90% |
| Fidelity Enhanced Large Cap Core ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Enhanced Large Cap Core ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Fidelity Enhanced Large Cap Core ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Fidelity Enhanced Large Cap Core ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Fidelity Enhanced Large Cap Core ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Fidelity Enhanced Large Cap Core ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Fidelity Enhanced Large Cap Core ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.20% |
| Fidelity Enhanced Large Cap Core ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 31.70% |
| Fidelity Enhanced Large Cap Core ETF | Healthcare Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12.50% |
| Fidelity Enhanced Large Cap Core ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Enhanced Large Cap Core ETF | Industrial Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Fidelity Enhanced Large Cap Core ETF | Materials Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.40% |
| Fidelity Enhanced Large Cap Core ETF | Consumer Discretionary Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.70% |
| Fidelity Enhanced Large Cap Core ETF | Consumer Staples Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Fidelity Enhanced Large Cap Core ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.30% |
| Fidelity Enhanced Large Cap Core ETF | Energy Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Fidelity Enhanced Large Cap Core ETF | Utilities Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.20% |
| Fidelity Enhanced Large Cap Core ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 100% |
| Fidelity Enhanced Large Cap Core ETF | Israel | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0% |
| Fidelity Enhanced Large Cap Core ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.10% |
| Fidelity Enhanced Large Cap Core ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.90% |
| Fidelity Crypto Industry and Digital Payments ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Fidelity Crypto Industry and Digital Payments ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.30% |
| Fidelity Crypto Industry and Digital Payments ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.80% |
| Fidelity Crypto Industry and Digital Payments ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Fidelity Crypto Industry and Digital Payments ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Fidelity Crypto Industry and Digital Payments ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Fidelity Crypto Industry and Digital Payments ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| Fidelity Crypto Industry and Digital Payments ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.60% |
| Fidelity Crypto Industry and Digital Payments ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Fidelity Crypto Industry and Digital Payments ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Fidelity Crypto Industry and Digital Payments ETF | MSFinancialsSectorMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 41.30% |
| Fidelity Crypto Industry and Digital Payments ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 58.60% |
| Fidelity Crypto Industry and Digital Payments ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 62.70% |
| Fidelity Crypto Industry and Digital Payments ETF | Canada | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 13.80% |
| Fidelity Crypto Industry and Digital Payments ETF | Germany | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Fidelity Crypto Industry and Digital Payments ETF | Brazil | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3% |
| Fidelity Crypto Industry and Digital Payments ETF | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.60% |
| Fidelity Crypto Industry and Digital Payments ETF | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Fidelity Crypto Industry and Digital Payments ETF | Australia | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| Fidelity Crypto Industry and Digital Payments ETF | OtherMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.20% |
| Fidelity Crypto Industry and Digital Payments ETF | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Fidelity Crypto Industry and Digital Payments ETF | Italy | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| Fidelity Crypto Industry and Digital Payments ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.90% |
| Fidelity Crypto Industry and Digital Payments ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.10% |
| Fidelity Metaverse ETF | TH0Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Fidelity Metaverse ETF | TH1Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.80% |
| Fidelity Metaverse ETF | TH2Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.70% |
| Fidelity Metaverse ETF | TH3Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Fidelity Metaverse ETF | TH4Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.60% |
| Fidelity Metaverse ETF | TH5Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Fidelity Metaverse ETF | TH6Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.50% |
| Fidelity Metaverse ETF | TH7Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.40% |
| Fidelity Metaverse ETF | TH8Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Fidelity Metaverse ETF | TH9Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4% |
| Fidelity Metaverse ETF | Information Technology Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 56.80% |
| Fidelity Metaverse ETF | Real Estate Sector | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.10% |
| Fidelity Metaverse ETF | Communications Sector Member | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 36.90% |
| Fidelity Metaverse ETF | United States | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 73.10% |
| Fidelity Metaverse ETF | Japan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.40% |
| Fidelity Metaverse ETF | United Kingdom | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Metaverse ETF | France | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Fidelity Metaverse ETF | China | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 10.50% |
| Fidelity Metaverse ETF | Korea, Republic of | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Fidelity Metaverse ETF | Sweden | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Metaverse ETF | Taiwan | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.80% |
| Fidelity Metaverse ETF | AACommonStocksMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 99.80% |
| Fidelity Metaverse ETF | AAShortTermInvestmentsandNetOtherAssetsLiabilitiesMember | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.20% |
