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Shareholder Report
 6 Months Ended
Jan. 31, 2025
USD ($)
shares
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Fidelity Covington Trust
Entity Central Index Key 0000945908
Entity Investment Company Type N-1A
Document Period End Date Jan. 31, 2025
Fidelity U.S. Multifactor ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® U.S. Multifactor ETF
Class Name Fidelity® U.S. Multifactor ETF
Trading Symbol FLRG
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® U.S. Multifactor ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® U.S. Multifactor ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 203,842,746
Holdings Count | shares 106
Investment Company Portfolio Turnover 31.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$203,842,746
  
Number of Holdings
106
  
Portfolio Turnover
31%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 30.0   Financials 13.6   Health Care 10.0   Consumer Discretionary 9.8   Communication Services 9.7   Industrials 9.6   Consumer Staples 5.4   Utilities 3.6   Energy 3.4   Materials 2.4   Real Estate 2.3     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 99.5 China 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 99.5                       China - 0.5                                   
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Microsoft Corp 6.0   NVIDIA Corp 5.8   Alphabet Inc Class A 4.2   Meta Platforms Inc Class A 2.9   Vistra Corp 2.4   Broadcom Inc 2.4   Visa Inc Class A 2.0   Mastercard Inc Class A 1.8   Eli Lilly & Co 1.7   Home Depot Inc/The 1.6     30.8  
Fidelity High Dividend ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® High Dividend ETF
Class Name Fidelity® High Dividend ETF
Trading Symbol FDVV
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® High Dividend ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® High Dividend ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 4,594,737,503
Holdings Count | shares 107
Investment Company Portfolio Turnover 1.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$4,594,737,503
  
Number of Holdings
107
  
Portfolio Turnover
1%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 25.7   Industrials 16.3   Consumer Staples 12.2   Energy 10.2   Utilities 9.0   Real Estate 8.5   Financials 8.0   Health Care 5.0   Consumer Discretionary 3.4   Communication Services 1.5     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 91.7 United Kingdom 4.5 Japan 2.6 Denmark 0.8 Germany 0.4 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 91.7                       United Kingdom - 4.5                       Japan - 2.6                                Denmark - 0.8                              Germany - 0.4                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 5.9   NVIDIA Corp 5.6   Microsoft Corp 5.2   Broadcom Inc 2.7   Targa Resources Corp 2.2   Philip Morris International Inc 2.1   Procter & Gamble Co/The 2.0   GE Aerospace 2.0   Exxon Mobil Corp 1.8   RTX Corp 1.7     31.2  
Fidelity Dividend ETF for Rising Rates  
Shareholder Report [Line Items]  
Fund Name Fidelity® Dividend ETF for Rising Rates
Class Name Fidelity® Dividend ETF for Rising Rates
Trading Symbol FDRR
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Dividend ETF for Rising Rates for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Dividend ETF for Rising Rates 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 556,117,726
Holdings Count | shares 118
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$556,117,726
  
Number of Holdings
118
  
Portfolio Turnover
2%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 32.6   Financials 15.6   Health Care 10.5   Industrials 9.4   Consumer Discretionary 9.2   Communication Services 7.4   Consumer Staples 5.3   Energy 3.2   Materials 2.2   Real Estate 2.2   Utilities 2.1     Common Stocks 99.7 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.7                       Short-Term Investments and Net Other Assets (Liabilities) - 0.3   United States 94.2 United Kingdom 2.0 Germany 1.4 Sweden 1.2 Japan 0.9 Denmark 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 94.2                       United Kingdom - 2.0                       Germany - 1.4                              Sweden - 1.2                               Japan - 0.9                                Denmark - 0.3                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 7.5   NVIDIA Corp 7.3   Microsoft Corp 6.6   Broadcom Inc 3.4   JPMorgan Chase & Co 2.3   Eli Lilly & Co 2.1   Visa Inc Class A 1.7   UnitedHealth Group Inc 1.7   IBM Corporation 1.6   Cisco Systems Inc 1.5     35.7  
Fidelity Fundamental Large Cap Growth ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Fundamental Large Cap Growth ETF
Class Name Fidelity® Fundamental Large Cap Growth ETF
Trading Symbol FFLG
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Fundamental Large Cap Growth ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Fundamental Large Cap Growth ETF 
$ 20 
0.38%
  
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.38%
Net Assets $ 384,174,657
Holdings Count | shares 100
Investment Company Portfolio Turnover 47.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$384,174,657
  
Number of Holdings
100
  
Portfolio Turnover
47%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 42.4   Communication Services 16.4   Consumer Discretionary 15.2   Health Care 10.1   Financials 6.1   Industrials 5.6   Consumer Staples 1.5   Materials 0.6   Utilities 0.5   Real Estate 0.3   Energy 0.1     Common Stocks 98.8 Short-Term Investments and Net Other Assets (Liabilities) 1.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 98.8                       Short-Term Investments and Net Other Assets (Liabilities) - 1.2   United States 93.8 Taiwan 2.6 China 1.3 Canada 0.8 Netherlands 0.6 Belgium 0.3 Brazil 0.3 Israel 0.2 Denmark 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 93.8                       Taiwan - 2.6                               China - 1.3                                Canada - 0.8                               Netherlands - 0.6                          Belgium - 0.3                              Brazil - 0.3                               Israel - 0.2                               Denmark - 0.1                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 11.6   Apple Inc 9.4   Amazon.com Inc 8.5   Microsoft Corp 7.9   Alphabet Inc Class A 5.1   Meta Platforms Inc Class A 4.9   Alphabet Inc Class C 2.6   Taiwan Semiconductor Manufacturing Co Ltd ADR 2.6   Eli Lilly & Co 2.4   Netflix Inc 2.1     57.1  
Fidelity Value Factor ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Value Factor ETF
Class Name Fidelity® Value Factor ETF
Trading Symbol FVAL
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Value Factor ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Value Factor ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 1,018,693,406
Holdings Count | shares 129
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$1,018,693,406
  
Number of Holdings
129
  
Portfolio Turnover
37%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 28.9   Financials 14.9   Consumer Discretionary 10.9   Health Care 10.5   Industrials 9.9   Communication Services 9.4   Consumer Staples 5.4   Energy 3.1   Real Estate 2.4   Utilities 2.2   Materials 2.2     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 98.3 Ireland 1.2 Bermuda 0.5 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 98.3                       Ireland - 1.2                              Bermuda - 0.5                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 6.9   Microsoft Corp 6.3   NVIDIA Corp 6.1   Amazon.com Inc 4.5   Alphabet Inc Class A 4.4   Meta Platforms Inc Class A 3.1   Berkshire Hathaway Inc Class B 2.0   JPMorgan Chase & Co 2.0   Visa Inc Class A 1.6   UnitedHealth Group Inc 1.6     38.5  
Fidelity Women's Leadership ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Women's Leadership ETF
Class Name Fidelity® Women's Leadership ETF
Trading Symbol FDWM
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Women's Leadership ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Women's Leadership ETF 
$ 31 
0.59%
  
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.59%
Net Assets $ 4,783,249
Holdings Count | shares 88
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$4,783,249
  
Number of Holdings
88
  
Portfolio Turnover
45%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 28.4   Financials 13.6   Consumer Discretionary 13.2   Health Care 12.4   Industrials 10.5   Communication Services 7.9   Energy 3.3   Consumer Staples 2.6   Materials 2.4   Real Estate 1.7   Utilities 0.7     Common Stocks 96.7 Short-Term Investments and Net Other Assets (Liabilities) 3.3 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 96.7                       Short-Term Investments and Net Other Assets (Liabilities) - 3.3   United States 96.0 Ireland 2.2 China 1.0 Canada 0.8 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 96.0                       Ireland - 2.2                              China - 1.0                                Canada - 0.8                                  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Microsoft Corp 4.7   Amazon.com Inc 4.4   Apple Inc 4.3   Alphabet Inc Class C 4.3   State Street Institutional Treasury Plus Money Market Fund Trust Class 2.9   Walt Disney Co/The 2.2   Micron Technology Inc 2.2   Accenture PLC Class A 2.2   Salesforce Inc 2.0   Arista Networks Inc 1.9     31.1  
Fidelity Quality Factor ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Quality Factor ETF
Class Name Fidelity® Quality Factor ETF
Trading Symbol FQAL
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Quality Factor ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Quality Factor ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 1,096,232,319
Holdings Count | shares 129
Investment Company Portfolio Turnover 32.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$1,096,232,319
  
Number of Holdings
129
  
Portfolio Turnover
32%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 29.1   Financials 14.4   Health Care 11.0   Consumer Discretionary 10.3   Communication Services 10.0   Industrials 9.1   Consumer Staples 5.1   Energy 3.5   Utilities 2.7   Materials 2.3   Real Estate 2.3     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 98.9 Ireland 1.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 98.9                       Ireland - 1.1                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 6.8   Microsoft Corp 6.2   NVIDIA Corp 6.0   Alphabet Inc Class A 4.3   Meta Platforms Inc Class A 3.1   Broadcom Inc 2.6   Eli Lilly & Co 1.9   Visa Inc Class A 1.8   Mastercard Inc Class A 1.5   Home Depot Inc/The 1.5     35.7  
Fidelity Low Volatility Factor ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Low Volatility Factor ETF
Class Name Fidelity® Low Volatility Factor ETF
Trading Symbol FDLO
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Low Volatility Factor ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Low Volatility Factor ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 1,379,630,808
Holdings Count | shares 130
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$1,379,630,808
  
Number of Holdings
130
  
Portfolio Turnover
20%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 30.2   Financials 14.3   Consumer Discretionary 11.1   Health Care 10.5   Communication Services 8.9   Industrials 8.8   Consumer Staples 5.3   Energy 3.6   Materials 2.5   Real Estate 2.4   Utilities 2.2     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 98.3 Ireland 1.7 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 98.3                       Ireland - 1.7                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 7.5   Microsoft Corp 6.9   Alphabet Inc Class A 4.9   Amazon.com Inc 4.5   Berkshire Hathaway Inc Class B 2.1   JPMorgan Chase & Co 2.0   IBM Corporation 1.9   Oracle Corp 1.8   Cisco Systems Inc 1.8   Accenture PLC Class A 1.7     35.1  
Fidelity Momentum Factor ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Momentum Factor ETF
Class Name Fidelity® Momentum Factor ETF
Trading Symbol FDMO
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Momentum Factor ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Momentum Factor ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 484,558,278
Holdings Count | shares 129
Investment Company Portfolio Turnover 120.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$484,558,278
  
Number of Holdings
129
  
Portfolio Turnover
120%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 29.9   Financials 14.9   Consumer Discretionary 11.5   Health Care 10.2   Communication Services 9.3   Industrials 8.8   Consumer Staples 5.3   Energy 3.2   Materials 2.3   Utilities 2.3   Real Estate 2.2     Common Stocks 99.9 Short-Term Investments and Net Other Assets (Liabilities) 0.1 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.9                       Short-Term Investments and Net Other Assets (Liabilities) - 0.1   United States 99.8 United Kingdom 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 99.8                       United Kingdom - 0.2                          
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 6.8   Microsoft Corp 6.0   NVIDIA Corp 5.7   Amazon.com Inc 4.3   Alphabet Inc Class A 4.0   Meta Platforms Inc Class A 2.9   Broadcom Inc 2.6   Tesla Inc 2.5   Berkshire Hathaway Inc Class B 2.1   JPMorgan Chase & Co 2.0     38.9  
Fidelity Stocks for Inflation ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Stocks for Inflation ETF
Class Name Fidelity® Stocks for Inflation ETF
Trading Symbol FCPI
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Stocks for Inflation ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Stocks for Inflation ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 215,213,861
Holdings Count | shares 105
Investment Company Portfolio Turnover 70.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$215,213,861
  
Number of Holdings
105
  
Portfolio Turnover
70%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 25.3   Health Care 13.9   Consumer Staples 10.2   Financials 9.2   Energy 8.6   Utilities 7.1   Materials 7.0   Real Estate 5.2   Consumer Discretionary 5.2   Industrials 4.1   Communication Services 4.0     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 99.3 Bermuda 0.5 China 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 99.3                       Bermuda - 0.5                              China - 0.2                                   
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Apple Inc 5.3   Microsoft Corp 4.9   NVIDIA Corp 4.7   Vistra Corp 4.4   Texas Pacific Land Corp 3.0   CF Industries Holdings Inc 2.8   NRG Energy Inc 2.7   Steel Dynamics Inc 2.3   Amazon.com Inc 2.3   Antero Midstream Corp 2.2     34.6  
Fidelity Fundamental Large Cap Value ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Fundamental Large Cap Value ETF
Class Name Fidelity® Fundamental Large Cap Value ETF
Trading Symbol FFLV
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Fundamental Large Cap Value ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Fundamental Large Cap Value ETF 
$ 20 
0.38%
  
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.38%
Net Assets $ 6,612,086
Holdings Count | shares 130
Investment Company Portfolio Turnover 35.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$6,612,086
  
Number of Holdings
130
  
Portfolio Turnover
35%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Financials 21.1   Health Care 15.7   Industrials 14.0   Energy 9.7   Information Technology 9.4   Consumer Staples 8.4   Real Estate 5.3   Communication Services 4.4   Materials 4.4   Utilities 3.7   Consumer Discretionary 3.1     Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.2                       Short-Term Investments and Net Other Assets (Liabilities) - 0.8   United States 94.9 Canada 1.9 United Kingdom 1.0 Spain 0.8 Taiwan 0.8 Bailiwick Of Jersey 0.4 France 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 94.9                       Canada - 1.9                               United Kingdom - 1.0                       Spain - 0.8                                Taiwan - 0.8                               Bailiwick Of Jersey - 0.4                  France - 0.2                                  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Exxon Mobil Corp 4.1   Johnson & Johnson 4.0   Cisco Systems Inc 3.9   Wells Fargo & Co 3.5   Bank of America Corp 3.2   Hartford Financial Services Group Inc/The 2.8   The Travelers Companies, Inc. 2.6   US Foods Holding Corp 2.0   Comcast Corp Class A 2.0   Apollo Global Management Inc 1.9     30.0  
Fidelity Blue Chip Growth ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Blue Chip Growth ETF
Class Name Fidelity® Blue Chip Growth ETF
Trading Symbol FBCG
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Blue Chip Growth ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Blue Chip Growth ETF 
$ 32 
0.59%
  
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.59%
Net Assets $ 4,117,635,862
Holdings Count | shares 220
Investment Company Portfolio Turnover 53.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$4,117,635,862
  
Number of Holdings
220
  
Portfolio Turnover
53%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 41.9   Consumer Discretionary 21.3   Communication Services 18.0   Health Care 6.1   Financials 5.2   Industrials 3.8   Consumer Staples 1.2   Materials 0.9   Real Estate 0.5   Energy 0.2     Common Stocks 99.1 Short-Term Investments and Net Other Assets (Liabilities) 0.9 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.1                       Short-Term Investments and Net Other Assets (Liabilities) - 0.9   United States 95.6 China 1.5 Taiwan 0.9 Canada 0.8 Netherlands 0.2 Finland 0.2 United Kingdom 0.2 Israel 0.2 Germany 0.1 Others 0.3 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 95.6                       China - 1.5                                Taiwan - 0.9                               Canada - 0.8                               Netherlands - 0.2                          Finland - 0.2                              United Kingdom - 0.2                       Israel - 0.2                               Germany - 0.1                              Others - 0.3                                  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 11.6   Apple Inc 10.1   Amazon.com Inc 9.5   Alphabet Inc Class A 7.7   Microsoft Corp 6.5   Meta Platforms Inc Class A 4.8   Marvell Technology Inc 3.2   Netflix Inc 2.7   Eli Lilly & Co 2.3   Tesla Inc 1.8     60.2  
Fidelity Blue Chip Value ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Blue Chip Value ETF
Class Name Fidelity® Blue Chip Value ETF
Trading Symbol FBCV
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Blue Chip Value ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Blue Chip Value ETF 
$ 30 
0.59%
  
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59%
Net Assets $ 127,953,813
Holdings Count | shares 108
Investment Company Portfolio Turnover 51.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$127,953,813
  
Number of Holdings
108
  
Portfolio Turnover
51%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Financials 26.2   Health Care 15.9   Industrials 13.1   Consumer Staples 9.6   Information Technology 7.7   Energy 7.2   Consumer Discretionary 4.9   Communication Services 4.5   Utilities 4.5   Materials 3.2   Real Estate 1.5     Common Stocks 98.3 Short-Term Investments and Net Other Assets (Liabilities) 1.7 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 98.3                       Short-Term Investments and Net Other Assets (Liabilities) - 1.7   United States 93.3 United Kingdom 3.8 Canada 1.8 Germany 0.7 Sweden 0.2 Switzerland 0.1 China 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 93.3                       United Kingdom - 3.8                       Canada - 1.8                               Germany - 0.7                              Sweden - 0.2                               Switzerland - 0.1                          China - 0.1                                   
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     JPMorgan Chase & Co 4.1   Exxon Mobil Corp 4.0   The Travelers Companies, Inc. 2.9   UnitedHealth Group Inc 2.7   Bank of America Corp 2.5   Cisco Systems Inc 2.5   Cigna Group/The 2.4   Berkshire Hathaway Inc Class B 2.3   Comcast Corp Class A 2.2   Centene Corp 2.2     27.8  
Fidelity Fundamental Small-Mid Cap ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Fundamental Small-Mid Cap ETF
Class Name Fidelity® Fundamental Small-Mid Cap ETF
Trading Symbol FFSM
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Fundamental Small-Mid Cap ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Fundamental Small-Mid Cap ETF 
$ 23 
0.44%
  
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.44%
Net Assets $ 747,869,672
Holdings Count | shares 204
Investment Company Portfolio Turnover 45.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$747,869,672
  
Number of Holdings
204
  
Portfolio Turnover
45%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Industrials 22.2   Financials 17.6   Consumer Discretionary 12.5   Information Technology 12.4   Health Care 9.3   Energy 6.5   Materials 5.9   Real Estate 5.1   Consumer Staples 4.8   Utilities 2.0   Communication Services 0.6     Common Stocks 98.9 Short-Term Investments and Net Other Assets (Liabilities) 1.1 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 98.9                       Short-Term Investments and Net Other Assets (Liabilities) - 1.1   United States 93.5 Canada 2.3 United Kingdom 1.6 Israel 1.1 Thailand 0.9 Puerto Rico 0.3 Japan 0.2 Netherlands 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 93.5                       Canada - 2.3                               United Kingdom - 1.6                       Israel - 1.1                               Thailand - 0.9                             Puerto Rico - 0.3                          Japan - 0.2                                Netherlands - 0.1                             
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Tempur Sealy International Inc 1.7   EMCOR Group Inc 1.7   TechnipFMC PLC 1.5   Antero Resources Corp 1.5   Eagle Materials Inc 1.5   BJ's Wholesale Club Holdings Inc 1.5   Murphy USA Inc 1.4   US Foods Holding Corp 1.4   Performance Food Group Co 1.3   Discover Financial Services 1.3     14.8  
Fidelity Sustainable U.S. Equity ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Sustainable U.S. Equity ETF
Class Name Fidelity® Sustainable U.S. Equity ETF
Trading Symbol FSST
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Sustainable U.S. Equity ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Sustainable U.S. Equity ETF 
$ 31 
0.59%
  
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.59%
Net Assets $ 15,837,967
Holdings Count | shares 157
Investment Company Portfolio Turnover 39.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$15,837,967
  
Number of Holdings
157
  
Portfolio Turnover
39%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 27.7   Consumer Discretionary 13.5   Communication Services 12.5   Financials 11.8   Health Care 11.4   Industrials 9.6   Materials 3.1   Energy 3.1   Consumer Staples 2.6   Utilities 2.3   Real Estate 1.1     Common Stocks 98.7 Short-Term Investments and Net Other Assets (Liabilities) 1.3 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 98.7                       Short-Term Investments and Net Other Assets (Liabilities) - 1.3   United States 97.6 Taiwan 0.8 Canada 0.5 China 0.5 Ireland 0.3 India 0.2 Brazil 0.1 Israel 0.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 97.6                       Taiwan - 0.8                               Canada - 0.5                               China - 0.5                                Ireland - 0.3                              India - 0.2                                Brazil - 0.1                               Israel - 0.0                                  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Alphabet Inc Class A 7.1   NVIDIA Corp 6.8   Apple Inc 6.4   Amazon.com Inc 5.8   Microsoft Corp 5.4   Meta Platforms Inc Class A 2.4   Mastercard Inc Class A 2.0   Netflix Inc 1.9   Salesforce Inc 1.7   Lowe's Cos Inc 1.6     41.1  
Fidelity Fundamental Large Cap Core ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Fundamental Large Cap Core ETF
Class Name Fidelity® Fundamental Large Cap Core ETF
Trading Symbol FFLC
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Fundamental Large Cap Core ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Fundamental Large Cap Core ETF 
$ 20 
0.38%
  
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.38%
Net Assets $ 766,166,558
Holdings Count | shares 111
Investment Company Portfolio Turnover 37.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$766,166,558
  
Number of Holdings
111
  
Portfolio Turnover
37%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 26.7   Financials 15.0   Communication Services 12.3   Industrials 11.8   Health Care 11.8   Consumer Discretionary 9.8   Energy 4.5   Consumer Staples 3.5   Utilities 1.7   Materials 1.6   Real Estate 1.0     Common Stocks 99.7 Short-Term Investments and Net Other Assets (Liabilities) 0.3 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.7                       Short-Term Investments and Net Other Assets (Liabilities) - 0.3   United States 94.5 Germany 1.4 Taiwan 1.2 Canada 0.9 Netherlands 0.5 China 0.4 Belgium 0.3 Congo Democratic Republic Of 0.3 Zambia 0.3 Others 0.2 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 94.5                       Germany - 1.4                              Taiwan - 1.2                               Canada - 0.9                               Netherlands - 0.5                          China - 0.4                                Belgium - 0.3                              Congo Democratic Republic Of - 0.3         Zambia - 0.3                               Others - 0.2                                  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     NVIDIA Corp 5.9   Meta Platforms Inc Class A 5.5   Alphabet Inc Class A 5.2   Microsoft Corp 5.1   Amazon.com Inc 4.1   Apple Inc 3.8   Exxon Mobil Corp 2.6   Wells Fargo & Co 2.5   Bank of America Corp 2.4   Broadcom Inc 2.4     39.5  
Fidelity Small-Mid Multifactor ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Small-Mid Multifactor ETF
Class Name Fidelity® Small-Mid Multifactor ETF
Trading Symbol FSMD
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Small-Mid Multifactor ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Small-Mid Multifactor ETF 
$ 8 
0.15%
  
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.15%
Net Assets $ 774,256,311
Holdings Count | shares 598
Investment Company Portfolio Turnover 52.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$774,256,311
  
Number of Holdings
598
  
Portfolio Turnover
52%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Industrials 20.0   Financials 18.1   Consumer Discretionary 12.9   Health Care 12.7   Information Technology 11.2   Real Estate 6.1   Materials 4.7   Energy 4.5   Consumer Staples 3.9   Communication Services 3.2   Utilities 2.5     Common Stocks 99.8 Short-Term Investments and Net Other Assets (Liabilities) 0.2 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.8                       Short-Term Investments and Net Other Assets (Liabilities) - 0.2   United States 98.1 Puerto Rico 0.4 Bermuda 0.4 United Kingdom 0.3 Sweden 0.3 Thailand 0.2 Monaco 0.1 Canada 0.1 Ireland 0.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 98.1                       Puerto Rico - 0.4                          Bermuda - 0.4                              United Kingdom - 0.3                       Sweden - 0.3                               Thailand - 0.2                             Monaco - 0.1                               Canada - 0.1                               Ireland - 0.1                                 
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Natera Inc 0.6   Texas Pacific Land Corp 0.5   Interactive Brokers Group Inc Class A 0.5   Live Nation Entertainment Inc 0.5   NRG Energy Inc 0.5   Pure Storage Inc Class A 0.4   EMCOR Group Inc 0.4   Tapestry Inc 0.4   Guidewire Software Inc 0.4   Duolingo Inc Class A 0.4     4.6  
Fidelity Real Estate Investment ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Real Estate Investment ETF
Class Name Fidelity® Real Estate Investment ETF
Trading Symbol FPRO
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Real Estate Investment ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Real Estate Investment ETF 
$ 30 
0.59%
  
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.59%
Net Assets $ 14,739,181
Holdings Count | shares 43
Investment Company Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$14,739,181
  
Number of Holdings
43
  
Portfolio Turnover
43%
  
Holdings [Text Block]       TOP INDUSTRIES (% of Fund's net assets) Specialized REITs 30.8   Residential REITs 17.6   Industrial REITs 16.7   Retail REITs 15.4   Health Care REITs 10.6   Real Estate Management & Development 7.7   Hotel & Resort REITs 0.4       Common Stocks 99.2 Short-Term Investments and Net Other Assets (Liabilities) 0.8 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 99.2                       Short-Term Investments and Net Other Assets (Liabilities) - 0.8   United States 100.0 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 100.0                         
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Prologis Inc 11.3   American Tower Corp 9.3   Equinix Inc 8.3   Welltower Inc 6.0   CBRE Group Inc Class A 4.9   Kimco Realty Corp 4.6   Ventas Inc 4.6   Public Storage Operating Co 3.9   UDR Inc 3.9   NNN REIT Inc 3.7     60.5  
Fidelity Magellan ETF  
Shareholder Report [Line Items]  
Fund Name Fidelity® Magellan℠ ETF
Class Name Fidelity® Magellan℠ ETF
Trading Symbol FMAG
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains information about Fidelity® Magellan℠ ETF for the period August 1, 2024 to January 31, 2025.
Shareholder Report Annual or Semi-Annual semi-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 six months?
(based on hypothetical $10,000 investment)
 
 
 
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
 
Fidelity® Magellan℠ ETF 
$ 31 
0.59%
  
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.59%
Net Assets $ 197,211,121
Holdings Count | shares 54
Investment Company Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block] Key Fund Statistics
(as of January 31, 2025)
 
KEY FACTS 
  
  
Fund Size
$197,211,121
  
Number of Holdings
54
  
Portfolio Turnover
62%
  
Holdings [Text Block]       MARKET SECTORS (% of Fund's net assets)     Information Technology 30.9   Industrials 17.3   Financials 15.1   Communication Services 11.6   Consumer Discretionary 10.6   Health Care 5.6   Materials 5.1   Consumer Staples 1.9     Common Stocks 98.1 Short-Term Investments and Net Other Assets (Liabilities) 1.9 ASSET ALLOCATION (% of Fund's net assets)     Common Stocks - 98.1                       Short-Term Investments and Net Other Assets (Liabilities) - 1.9   United States 97.8 Canada 1.1 Taiwan 1.1 GEOGRAPHIC DIVERSIFICATION (% of Fund's net assets)     United States - 97.8                       Canada - 1.1                               Taiwan - 1.1                                  
Largest Holdings [Text Block] TOP HOLDINGS (% of Fund's net assets)     Microsoft Corp 7.3   NVIDIA Corp 6.8   Amazon.com Inc 5.6   Meta Platforms Inc Class A 4.4   Broadcom Inc 3.6   Alphabet Inc Class A 3.5   JPMorgan Chase & Co 2.5   Eli Lilly & Co 2.4   Visa Inc Class A 2.4   State Street Institutional Treasury Plus Money Market Fund Trust Class 2.2     40.7