Investment Risks - iShares MSCI Russia ETF	Aug. 31, 2025
Commodity Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Commodity Risk. The Fund holds investments in Russian issuers that are susceptible to fluctuations in certain commodity markets and to price changes due to trade relations. Any negative changes in commodity markets that may be due to changes in supply and demand for commodities, market events, war, regulatory developments, other catastrophic events, or other factors that the Fund cannot control could have an adverse impact on the Russian economy.
Concentration Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in the securities or other assets of one or more issuers, countries or other geographic units, markets, industries, project types, or asset classes.
Currency Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Currency Risk. Because the Fund’s NAV is determined in U.S. dollars, the NAV could decline if the currency of the non-U.S. market in which the Fund invests depreciates against the U.S. dollar or if there are delays or limits on the repatriation of foreign currency. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the Fund’s NAV may change quickly and without warning. In addition, the Fund may incur costs in connection with conversions between U.S. dollars and foreign currencies.
Custody Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Custody Risk. Less developed securities markets are more likely to experience problems with the clearing and settlement of trades, as well as the custody of securities and other assets by local banks, agents and depositories. These issues may have an adverse impact on the Fund, including losses or delays in payments, delivery or recovery of money or other assets.
Energy Companies Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Energy Companies Risk. Companies in the energy sector may be adversely affected by volatility in energy and commodity prices, lower demand, overproduction, depletion of resources, social and political unrest, war, trade disputes, government regulations and energy transition efforts, among other factors. The energy sector is cyclical and can be significantly impacted by changes in economic conditions. Some energy companies, such as those in the oil and gas sector, face substantial costs related to exploration and production and significant operational risks. Energy companies are at risk of environmental damage claims and other litigation.
Equity Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The value of a security may decline for a number of reasons that may directly relate to the issuer as well as due to general industry or market conditions. Common stock is subordinated to preferred securities and debt in a company’s capital structure. Common stock has the lowest priority, and the greatest risk, with respect to dividends and any liquidation payments in the event of an issuer’s bankruptcy.
Financial Companies Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Financial Companies Risk. Financial services companies are subject to extensive governmental regulation and intervention, which may adversely affect their profitability, the scope of their activities, the prices they can charge, the amount of capital and liquid assets they must maintain and their size, among other things. Financial services companies also may be significantly affected by, among other things, interest rates, economic conditions, volatility in financial markets, credit rating downgrades, adverse public perception, exposure concentration and counterparty risk.
Illiquid Investments Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Illiquid Investments Risk. As a result of the current conditions related to Russian securities and Russian markets, the Fund is unable to dispose of the Russian securities in its portfolio and the Fund's portfolio has become illiquid. It is unknown when current restrictions will be lifted. In the event that it becomes possible to dispose of Russian securities, other market participants may attempt to liquidate holdings at the same time as the Fund, and the Fund may be unable to transact at advantageous times or prices.
Issuer Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Issuer Risk. The performance of the Fund depends on the performance of individual securities or other assets to which the Fund has exposure. The value of securities or other assets may decline, or perform differently from the market as a whole, due to changes in the financial condition or credit rating of the issuer or counterparty.
Large Capitalization Companies Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Large-Capitalization Companies Risk. Large-capitalization companies may be less able than smaller-capitalization companies to adapt to changing market conditions and competitive challenges. Large-capitalization companies may be more mature and subject to more limited growth potential compared with smaller-capitalization companies. The performance of large-capitalization companies could trail the overall performance of the broader securities markets.
Market Risks [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Risk. The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, pandemics or other public health issues, recessions, the prospect or occurrence of a sovereign default or other financial crisis, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
Market Trading Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Trading Risk. It is unlikely that there will be a trading market for your shares. In addition, creations and redemptions of Fund shares have been halted.
Materials Companies Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Materials Companies Risk. Materials companies may be adversely affected by volatility in commodity prices, changes in exchange rates, social and political unrest, war, depletion of resources, lower demand, overproduction, litigation and government regulations, among other factors.
Mid Capitalization Companies Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Mid-Capitalization Companies Risk. Compared to large-capitalization companies, mid-capitalization companies may be less stable and more susceptible to adverse developments. The securities of mid-capitalization companies may be more volatile and less liquid than those of large-capitalization companies. As a result, the Fund’s share price may be more volatile than that of a fund with a greater investment in large-capitalization stocks.
Non U S Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-U.S. Securities Risk. Securities issued by non-U.S. issuers (including depositary receipts) are subject to different legal, regulatory, political, economic, and market risks than securities issued by U.S. issuers. These risks include greater market volatility, less market liquidity, higher transaction costs, expropriation, confiscatory taxation, adverse changes in foreign investment or currency control regulations, restrictions on the repatriation of capital, and political instability. Non-U.S. issuers may be subject to different accounting, audit and financial reporting standards than U.S. issuers, and there may be less publicly available information about non-U.S. issuers. Foreign market trading hours, different clearing and settlement procedures, and holiday schedules may limit the Fund's ability to engage in portfolio transactions. To the extent that investments are made in a limited number of countries, events in those countries will have a more significant impact on the Fund. The Fund is specifically exposed to Eastern European Economic Risk.
Operational and Technology Risks [Member]
Prospectus [Line Items]
Risk [Text Block]	Operational and Technology Risks. The Fund is directly and indirectly susceptible to operational and technology risks, including those related to human errors, processing errors, communication errors, systems failures, cybersecurity incidents, and the use of artificial intelligence and machine learning (“AI”), which may result in losses for the Fund and its shareholders or may impair the Fund’s operations. While the Fund’s service providers are required to have appropriate operational, information security and cybersecurity risk management policies and procedures, their methods of risk management may differ from those of the Fund. Operational and technology risks for the issuers in which the Fund invests could also result in material adverse consequences for such issuers and may cause the Fund’s investments in such issuers to lose value.
Reliance on Trading Partners Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Reliance on Trading Partners Risk. The Fund invests in a country whose economy is heavily dependent upon trading with key partners. Any reduction in this trading may have an adverse impact on the Fund's investments. Through its holdings of securities of certain issuers, the Fund is specifically exposed to Asian Economic Risk, Eastern European Economic Risk, European Economic Risk and U.S. Economic Risk.
Risk of Investing in Emerging Markets [Member]
Prospectus [Line Items]
Risk [Text Block]	Risk of Investing in Emerging Markets. Investments in emerging markets may be subject to a greater risk of loss than investments in more developed markets. The risks of emerging markets may include, among others, greater market volatility; political, legal, economic, and social instability; less developed securities markets, including settlement, custody and valuation processes; government expropriation or nationalization of assets; greater volatility in currency exchange rates; more capital controls; less governmental supervision and regulation; and less stringent accounting, auditing and disclosure requirements. There may be significant obstacles to obtaining information necessary for investigations into or litigation against companies, and shareholders may have limited legal remedies. The Fund does not select investments based on investor protection considerations. Emerging market securities may face liquidity challenges, and the Fund may be unable to liquidate its positions in such securities at a favorable time or price.
Risk of Investing in Russia [Member]
Prospectus [Line Items]
Risk [Text Block]	Risk of Investing in Russia. Investing in Russian securities involves significant risks, including legal, regulatory, currency and economic risks that are specific to Russia. In addition, investing in Russian securities involves risks associated with the settlement of portfolio transactions and loss of the Fund’s ownership rights in its portfolio securities as a result of the system of share registration and custody in Russia. Governments in the U.S. and many other countries have imposed economic sanctions on certain Russian individuals and Russian corporate and banking entities. A number of jurisdictions may also institute broader sanctions on Russia. Recently, Russia has issued a number of countersanctions, some of which restrict the distribution of profits by limited liability companies (e.g., dividends), and prohibit Russian persons from entering into transactions with designated persons from “unfriendly states” as well as the export of raw materials or other products from Russia to certain sanctioned persons. Russia launched a large-scale invasion of Ukraine on February 24, 2022. The extent and duration of the military action, resulting sanctions and resulting future market disruptions, including declines in its stock markets and the value of the ruble against the U.S. dollar, are impossible to predict, but could be significant. Disruptions caused by Russian military action or other actions (including cyberattacks and espionage) or resulting actual and threatened responses to such activity, including purchasing and financing restrictions, boycotts or changes in consumer or purchaser preferences, sanctions, import and export restrictions,tariffs or cyberattacks on the Russian government, Russian companies, or Russian individuals, including politicians, may impact Russia’s economy and Russian companies in which the Fund invests. Actual and threatened responses to such military action may also impact the markets for certain Russian commodities, such as oil and natural gas, as well as other sectors of the Russian economy, and may likely have collateral impacts on such sectors globally. Russian companies may be unable to pay dividends and, if they pay dividends, the Fund may be unable to receive them.
Small Fund Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Small Fund Risk. When the Fund’s size is small, the Fund may experience low trading volume and wide bid/ask spreads. The Fund’s performance near its inception date may not represent how the Fund will perform in the future or with a larger asset base. In addition, the Fund may face the risk of being delisted if it does not meet certain requirements set by the listing exchange. Any resulting liquidation of the Fund could lead to elevated transaction costs for the Fund and negative tax consequences for its shareholders.
Valuation Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Valuation Risk. The price that the Fund could receive upon the sale (or other disposition) of a security or other asset may differ from the Fund’s valuation of the security or other asset, particularly for securities or other assets that trade in low volume or volatile markets or that are valued using a fair value methodology. The price received by the Fund also may differ from the value used by the Underlying Index. In addition, the value of the securities or other assets in the Fund’s portfolio may change on days or during time periods when investors are not able to purchase or sell Fund shares. Authorized Participants that create or redeem Fund shares on days when the Fund is holding fair-valued securities or other assets may receive fewer or more shares, or lower or higher redemption proceeds, than they would have received had the securities or other assets not been fair valued or been valued using a different methodology. The ability to value investments may be impacted by technological issues or errors by pricing services or other third-party service providers. DUE TO THE INABILITY TO TRADE RUSSIAN SECURITIES, CERTAIN OF THE FUND'S ASSETS ARE VALUED USING A FAIR VALUE METHODOLOGY. THE ACTUAL PRICE RECEIVED BY THE FUND FOR SUCH ASSETS MAY DIFFER SUBSTANTIALLY FROM THE FAIR VALUE ASSIGNED TO THEM.
Asset Class Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Asset Class Risk. The securities and other assets in the Underlying Index or in the Fund’s portfolio may underperform in comparison to financial markets generally, a particular financial market, another index, or other asset classes.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	As with any investment, you could lose all or part of yourinvestment in the Fund, and the Fund's performance could trailthat of other investments.
Risk Nondiversified Status [Member]
Prospectus [Line Items]
Risk [Text Block]	Non-Diversification Risk. The Fund is classified as “non-diversified.” This means that, compared with funds that are classified as “diversified,” the Fund may invest a greater percentage of its assets in securities or other instruments representing a small number of issuers or counterparties and thus may be more susceptible to the risks associated with these particular issuers or counterparties. As a result, the Fund's performance may depend to a greater extent on the performance of a small number of issuers or counterparties, which may lead to more volatility in the Fund’s NAV.

Investment Risks - iShares MSCI Russia ETF

Aug. 31, 2025

Commodity Risk. The Fund holds investments in Russian issuers that are susceptible to fluctuations in certain commodity markets and to price changes due to trade relations. Any negative changes in commodity markets that may be due to changes in supply and demand for commodities, market events, war, regulatory developments, other catastrophic events, or other factors that the Fund cannot control could have an adverse impact on the Russian economy.

Prospectus [Line Items]

Risk [Text Block]

Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in the securities or other assets of one or more issuers, countries or other geographic units, markets, industries, project types, or asset classes.

Currency Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Currency Risk. Because the Fund’s NAV is determined in U.S. dollars, the NAV could decline if the currency of the non-U.S. market in which the Fund invests depreciates against the U.S. dollar or if there are delays or limits on the repatriation of foreign currency. Currency exchange rates can be very volatile and can change quickly and unpredictably. As a result, the Fund’s NAV may change quickly and without warning. In addition, the Fund may incur costs in connection with conversions between U.S. dollars and foreign currencies.

Custody Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Custody Risk. Less developed securities markets are more likely to experience problems with the clearing and settlement of trades, as well as the custody of securities and other assets by local banks, agents and depositories. These issues may have an adverse impact on the Fund, including losses or delays in payments, delivery or recovery of money or other assets.

Energy Companies Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Energy Companies Risk. Companies in the energy sector may be adversely affected by volatility in energy and commodity prices, lower demand, overproduction, depletion of resources, social and political unrest, war, trade disputes, government regulations and energy transition efforts, among other factors. The energy sector is cyclical and can be significantly impacted by changes in economic conditions. Some energy companies, such as those in the oil and gas sector, face substantial costs related to exploration and production and significant operational risks. Energy companies are at risk of environmental damage claims and other litigation.

Equity Securities Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The value of a security may decline for a number of reasons that may directly relate to the issuer as well as due to general industry or market conditions. Common stock is subordinated to preferred securities and debt in a company’s

capital structure. Common stock has the lowest priority, and the greatest risk, with respect to dividends and any liquidation payments in the event of an issuer’s bankruptcy.

Financial Companies Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Financial Companies Risk. Financial services companies are subject to extensive governmental regulation and intervention, which may adversely affect their profitability, the scope of their activities, the prices they can charge, the amount of capital and liquid assets they must maintain and their size, among other things. Financial services companies also may be significantly affected by, among other things, interest rates, economic conditions, volatility in financial markets, credit rating downgrades, adverse public perception, exposure concentration and counterparty risk.

Illiquid Investments Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Illiquid Investments Risk. As a result of the current conditions related to Russian securities and Russian markets, the Fund is unable to dispose of the Russian securities in its portfolio and the Fund's portfolio has become illiquid. It is unknown when current restrictions will be lifted. In the event that it becomes possible to dispose of Russian securities, other market participants may attempt to liquidate holdings at the same time as the Fund, and the Fund may be unable to transact at advantageous times or prices.

Issuer Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Issuer Risk. The performance of the Fund depends on the performance of individual securities or other assets to which the Fund has exposure. The value of securities or other assets may decline, or perform differently from the market as a whole, due to changes in the financial condition or credit rating of the issuer or counterparty.

Large Capitalization Companies Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Large-Capitalization Companies Risk. Large-capitalization companies may be less able than smaller-capitalization companies to adapt to changing market conditions and competitive challenges. Large-capitalization companies may be more mature and subject to more limited growth potential compared with smaller-capitalization companies. The performance of large-capitalization companies could trail the overall performance of the broader securities markets.

Market Risks [Member]

Prospectus [Line Items]

Risk [Text Block]

Market Risk. The Fund could lose money over short periods due to short-term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, pandemics or other public health issues, recessions, the prospect or occurrence of a sovereign default or other financial crisis, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.

Market Trading Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Market Trading Risk. It is unlikely that there will be a trading market for your shares. In addition, creations and redemptions of Fund shares have been halted.

Materials Companies Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Materials Companies Risk. Materials companies may be adversely affected by volatility in commodity prices, changes in exchange rates, social and political unrest, war, depletion of resources, lower demand, overproduction, litigation and government regulations, among other factors.

Mid Capitalization Companies Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Mid-Capitalization Companies Risk. Compared to large-capitalization companies, mid-capitalization companies may be less stable and more susceptible to adverse developments. The

securities of mid-capitalization companies may be more volatile and less liquid than those of large-capitalization companies. As a result, the Fund’s share price may be more volatile than that of a fund with a greater investment in large-capitalization stocks.

Non U S Securities Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Non-U.S. Securities Risk. Securities issued by non-U.S. issuers (including depositary receipts) are subject to different legal, regulatory, political, economic, and market risks than securities issued by U.S. issuers. These risks include greater market volatility, less market liquidity, higher transaction costs, expropriation, confiscatory taxation, adverse changes in foreign investment or currency control regulations, restrictions on the repatriation of capital, and political instability. Non-U.S. issuers may be subject to different accounting, audit and financial reporting standards than U.S. issuers, and there may be less publicly available information about non-U.S. issuers. Foreign market trading hours, different clearing and settlement procedures, and holiday schedules may limit the Fund's ability to engage in portfolio transactions. To the extent that investments are made in a limited number of countries, events in those countries will have a more significant impact on the Fund. The Fund is specifically exposed to Eastern European Economic Risk.

Operational and Technology Risks [Member]

Prospectus [Line Items]

Risk [Text Block]

Operational and Technology Risks. The Fund is directly and indirectly susceptible to operational and technology risks, including those related to human errors, processing errors, communication errors, systems failures, cybersecurity incidents, and the use of artificial intelligence and machine learning (“AI”), which may result in losses for the Fund and its shareholders or may impair the Fund’s operations. While the Fund’s service providers are required to have appropriate operational, information security and cybersecurity risk management policies and procedures, their methods of risk management may differ from those of the Fund. Operational and technology risks for the issuers in which the Fund invests could also result in material adverse consequences for such issuers and may cause the Fund’s investments in such issuers to lose value.

Reliance on Trading Partners Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Reliance on Trading Partners Risk. The Fund invests in a country whose economy is heavily dependent upon trading with key partners. Any reduction in this trading may have an adverse impact on the Fund's investments. Through its holdings of securities of certain issuers, the Fund is specifically exposed to Asian Economic Risk, Eastern European Economic Risk, European Economic Risk and U.S. Economic Risk.

Risk of Investing in Emerging Markets [Member]

Prospectus [Line Items]

Risk [Text Block]

Risk of Investing in Emerging Markets. Investments in emerging markets may be subject to a greater risk of loss than investments in more developed markets. The risks of emerging markets may include, among others, greater market volatility; political, legal, economic, and social instability; less developed securities

markets, including settlement, custody and valuation processes; government expropriation or nationalization of assets; greater volatility in currency exchange rates; more capital controls; less governmental supervision and regulation; and less stringent accounting, auditing and disclosure requirements. There may be significant obstacles to obtaining information necessary for investigations into or litigation against companies, and shareholders may have limited legal remedies. The Fund does not select investments based on investor protection considerations. Emerging market securities may face liquidity challenges, and the Fund may be unable to liquidate its positions in such securities at a favorable time or price.

Risk of Investing in Russia [Member]

Prospectus [Line Items]

Risk [Text Block]

Risk of Investing in Russia. Investing in Russian securities involves significant risks, including legal, regulatory, currency and economic risks that are specific to Russia. In addition, investing in Russian securities involves risks associated with the settlement of portfolio transactions and loss of the Fund’s ownership rights in its portfolio securities as a result of the system of share registration and custody in Russia. Governments in the U.S. and many other countries have imposed economic sanctions on certain Russian individuals and Russian corporate and banking entities. A number of jurisdictions may also institute broader sanctions on Russia. Recently, Russia has issued a number of countersanctions, some of which restrict the distribution of profits by limited liability companies (e.g., dividends), and prohibit Russian persons from entering into transactions with designated persons from “unfriendly states” as well as the export of raw materials or other products from Russia to certain sanctioned persons. Russia launched a large-scale invasion of Ukraine on February 24, 2022. The extent and duration of the military action, resulting sanctions and resulting future market disruptions, including declines in its stock markets and the value of the ruble against the U.S. dollar, are impossible to predict, but could be significant. Disruptions caused by Russian military action or other actions (including cyberattacks and espionage) or resulting actual and threatened responses to such activity, including purchasing and financing restrictions, boycotts or changes in consumer or purchaser preferences, sanctions, import and export restrictions,tariffs or cyberattacks on the Russian government, Russian companies, or Russian individuals, including politicians, may impact Russia’s economy and Russian companies in which

the Fund invests. Actual and threatened responses to such military action may also impact the markets for certain Russian commodities, such as oil and natural gas, as well as other sectors of the Russian economy, and may likely have collateral impacts on such sectors globally. Russian companies may be unable to pay dividends and, if they pay dividends, the Fund may be unable to receive them.

Small Fund Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Small Fund Risk. When the Fund’s size is small, the Fund may experience low trading volume and wide bid/ask spreads. The Fund’s performance near its inception date may not represent how the Fund will perform in the future or with a larger asset base. In addition, the Fund may face the risk of being delisted if it does not meet certain requirements set by the listing exchange. Any resulting liquidation of the Fund could lead to elevated transaction costs for the Fund and negative tax consequences for its shareholders.

Valuation Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Valuation Risk. The price that the Fund could receive upon the sale (or other disposition) of a security or other asset may differ from the Fund’s valuation of the security or other asset, particularly for securities or other assets that trade in low volume or volatile markets or that are valued using a fair value methodology. The price received by the Fund also may differ from the value used by the Underlying Index. In addition, the value of the securities or other assets in the Fund’s portfolio may change on days or during time periods when investors are not able to purchase or sell Fund shares. Authorized Participants that create or redeem Fund shares on days when the Fund is holding fair-valued securities or other assets may receive fewer or more shares, or lower or higher redemption proceeds, than they would have received had the securities or other assets not been fair valued or been valued using a different methodology. The ability to value investments may be impacted by technological issues or errors by pricing services or other third-party service providers. DUE TO THE INABILITY TO TRADE RUSSIAN SECURITIES, CERTAIN OF THE FUND'S ASSETS ARE VALUED USING A FAIR VALUE METHODOLOGY. THE ACTUAL PRICE RECEIVED BY THE FUND FOR SUCH ASSETS MAY DIFFER SUBSTANTIALLY FROM THE FAIR VALUE ASSIGNED TO THEM.

Asset Class Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Asset Class Risk. The securities and other assets in the Underlying Index or in the Fund’s portfolio may underperform in comparison to financial markets generally, a particular financial market, another index, or other asset classes.

Risk Lose Money [Member]

Prospectus [Line Items]

Risk [Text Block]

As with any investment, you could lose all or part of yourinvestment in the Fund, and the Fund's performance could trailthat of other investments.

Risk Nondiversified Status [Member]

Prospectus [Line Items]

Risk [Text Block]

Non-Diversification Risk. The Fund is classified as “non-diversified.” This means that, compared with funds that are classified as “diversified,” the Fund may invest a greater percentage of its assets in securities or other instruments representing a small number of issuers or counterparties and thus may be more susceptible to the risks associated with these particular issuers or counterparties. As a result, the Fund's performance may depend to a greater extent on the performance of a small number of issuers or counterparties, which may lead to more volatility in the Fund’s NAV.