v3.25.0.1
Risk/Return Detail Data - FidelityInternationalFactorETFs-ComboPRO
Mar. 01, 2025
USD ($)
Risk/Return:  
Registrant Name Fidelity Covington Trust
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF  
Risk/Return:  
Risk/Return [Heading] Fund Summary Fund: Fidelity® International Value Factor ETF
Objective [Heading] Investment Objective
Objective, Primary [Text Block] Fidelity® International Value Factor ETF seeks to provide investment returns that correspond, before fees and expenses, generally to the performance of the Fidelity International Value Factor Index℠.
Expense [Heading] Fee Table
Expense Narrative [Text Block] The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
Shareholder Fees Caption [Text] Shareholder fees
(fees paid directly from your investment) none
Operating Expenses Caption [Text] Annual Operating Expenses
Management fee 0.18%
Distribution and/or Service (12b-1) fees none
Other expenses 0.01%
Total annual operating expenses 0.19%
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block] The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 71 % of the average value of its portfolio.
Portfolio Turnover, Rate 71.00%
Expense Example Narrative [Text Block] This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated:
1 year $ 19
3 years 61
5 years 107
10 years $ 243
Strategy [Heading] Principal Investment Strategies
Strategy Narrative [Text Block] Normally investing at least 80% of assets in securities included in the Fidelity International Value Factor IndexSM and in depositary receipts representing securities included in the index. The index is designed to reflect the performance of stocks of large- and mid-capitalization developed international companies that have attractive valuations. The Fidelity International Value Factor Index SM is constructed using Fidelity's rules-based proprietary index methodology. Stocks in the universe are grouped together by country and sector (with certain broader groupings in the event of small sector and country combinations). Stocks are ranked within each group and given a composite score based on four measures of value: high free cash flow yield; low enterprise value to earnings before interest, taxes, depreciation and amortization; low price to tangible book value; and low price to future earnings. Within each group, composite scores are adjusted to remove size bias. Stocks with the highest composite scores within each group are identified for inclusion in the index. The grouping methodology results in country weights that are comparable to but not exactly the same as the broader developed international equity market. Within each group, each stock is weighted based on its market capitalization in the broader equity market plus an overweight adjustment that is equal for all constituents within that group. Each sector is neutral-weighted relative to the broader developed international equity market. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Lending securities to earn income for the fund.
Risk [Heading] Principal Investment Risks
Bar Chart and Performance Table [Heading] Performance
Performance Narrative [Text Block] The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit www.fidelity.com for more recent performance information.
Performance Information Illustrates Variability of Returns [Text] The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time.
Performance Availability Website Address [Text] www.fidelity.com
Performance Past Does Not Indicate Future [Text] Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading] Year-by-Year Returns
Highest Quarterly Return, Label    Highest Quarter Return
Highest Quarterly Return, Date Dec. 31, 2022
Highest Quarterly Return 19.23%
Lowest Quarterly Return, Label    Lowest Quarter Return
Lowest Quarterly Return, Date Mar. 31, 2020
Lowest Quarterly Return (27.30%)
Performance Table Heading Average Annual Returns
Performance Table Uses Highest Federal Rate After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes.
Performance Table Not Relevant to Tax Deferred The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan).
Performance Table Explanation after Tax Higher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
Performance Table Narrative After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares.
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF | Fidelity International Value Factor ETF  
Risk/Return:  
Annual Return, Inception Date Jan. 16, 2018
2019 19.70%
2020 (1.68%)
2021 16.05%
2022 (10.42%)
2023 20.26%
2024 3.34%
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF | Return Before Taxes | Fidelity International Value Factor ETF  
Risk/Return:  
Label Return Before Taxes
Past 1 year 3.34%
Past 5 years 4.90%
Since Inception 3.19% [1]
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF | After Taxes on Distributions | Fidelity International Value Factor ETF  
Risk/Return:  
Label Return After Taxes on Distributions
Past 1 year 2.67%
Past 5 years 4.18%
Since Inception 2.52% [1]
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF | After Taxes on Distributions and Sales | Fidelity International Value Factor ETF  
Risk/Return:  
Label Return After Taxes on Distributions and Sale of Fund Shares
Past 1 year 2.74%
Past 5 years 3.87%
Since Inception 2.54% [1]
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF | MC040  
Risk/Return:  
Label MSCI World ex USA Index
Past 1 year 4.95%
Past 5 years 5.33%
Since Inception 3.99%
FidelityInternationalFactorETFs-ComboPRO | Fidelity International Value Factor ETF | IXYCJ  
Risk/Return:  
Label Fidelity International Value Factor Index℠
Past 1 year 3.71%
Past 5 years 5.41%
Since Inception 3.72%
[1]
A From January 16, 2018 .