Label	Element	Value
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO
Risk/Return:	oef_RiskReturnAbstract
Risk/Return [Heading]	oef_RiskReturnHeading	Large Cap International Portfolio
Objective [Heading]	oef_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	oef_ObjectivePrimaryTextBlock	The investment objective of the Large Cap International Portfolio (the “Portfolio”) is to achieve long-term capital appreciation.
Expense Heading [Optional Text]	oef_ExpenseHeading	Fees and Expenses of the Portfolio
Expense Narrative [Text Block]	oef_ExpenseNarrativeTextBlock	This table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.
Shareholder Fees Caption [Optional Text]	oef_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Optional Text]	oef_OperatingExpensesCaption	Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	oef_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	oef_PortfolioTurnoverTextBlock	A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover 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 Fund Operating Expenses or in the Example, affect the Portfolio’s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was 8% of the average value of its investment portfolio.
Portfolio Turnover, Rate	oef_PortfolioTurnoverRate	8.00%
Expense Example [Heading]	oef_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	oef_ExpenseExampleNarrativeTextBlock	This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be:
Strategy [Heading]	oef_StrategyHeading	Principal Investment Strategies
Strategy Narrative [Text Block]	oef_StrategyNarrativeTextBlock	To achieve the Large Cap International Portfolio’s investment objective, Dimensional Fund Advisors LP (the “Advisor”) implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Portfolio’s design emphasizes long-term drivers of expected returns identified by the Advisor’s research, while balancing risk through broad diversification across companies, sectors, and countries. The Advisor’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs. The Large Cap International Portfolio is designed to purchase securities of large non-U.S. companies in countries or regions designated by the Advisor as an approved market for investment. The Advisor may consider a company’s size, relative price, and/or profitability relative to other eligible companies when making investment decisions for the Portfolio. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to change from time to time. The Advisor will seek to set country weights based on the relative adjusted market capitalizations of eligible large companies within each eligible country. The Large Cap International Portfolio intends to purchase securities of large non-U.S. companies associated with developed market countries that the Advisor has designated as approved markets. As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in securities of large cap companies in the particular markets in which the Portfolio invests. The Advisor determines the minimum market capitalization of a large company with respect to each country or region in which the Portfolio invests. Based on market capitalization data as of December 31, 2025, for the Portfolio, the market capitalization of a large company in any country or region in which the Portfolio invests would be $1,852 million or above. This threshold will change due to market conditions. The Advisor may also increase or reduce the Large Cap International Portfolio’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs. The Large Cap International Portfolio may gain exposure to companies in an approved market by purchasing equity securities in the form of depositary receipts, which may be listed or traded outside the issuer’s domicile country. The Portfolio also may purchase or sell futures contracts and options on futures contracts for foreign or U.S. equity securities and indices to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio’s investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer cash balances from one currency to another currency. The Large Cap International Portfolio may lend its portfolio securities to generate additional income.
Bar Chart and Performance Table [Heading]	oef_BarChartAndPerformanceTableHeading	Performance
Performance Narrative [Text Block]	oef_PerformanceNarrativeTextBlock	The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds. The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.
Performance Information Illustrates Variability of Returns [Text]	oef_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.
Performance Availability Website Address [Text]	oef_PerformanceAvailabilityWebSiteAddress	https://www.dimensional.com/us-en/funds
Performance Past Does Not Indicate Future [Text]	oef_PerformancePastDoesNotIndicateFuture	The Portfolio’s past performance (before and after taxes) is not an indication of future results.
Bar Chart [Heading]	oef_BarChartHeading	Large Cap International Portfolio Institutional Class Shares —Total Returns
Performance Table Heading	oef_PerformanceTableHeading	Annualized Returns (%)
Index No Deduction for Fees, Expenses, or Taxes [Text]	oef_IndexNoDeductionForFeesExpensesTaxes	(reflects no deduction for fees, expenses or taxes on sales)
Performance Table Uses Highest Federal Rate	oef_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	oef_PerformanceTableNotRelevantToTaxDeferred	In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Principal Risks
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Principal Risks Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a description of principal risks of investing in the Portfolio.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Risk Lose Money [Member]
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Risk Not Insured [Member]
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Equity Market Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Equity Market Risk: Even a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of falling prices.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Foreign Securities and Currencies Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Foreign Securities and Currencies Risk: Foreign securities prices may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk. Foreign issuers may not be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable and publicly available financial and other information about such issuers, as compared to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, and obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic issuers in U.S. courts. Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily available public information about the issuer.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Geographic Focus Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Geographic Focus Risk: If a fund focuses its investments in securities of issuers located in a particular country or region, the fund may be subjected, to a greater extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Profitability Investment Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Profitability Investment Risk: High relative profitability stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause a fund to at times underperform equity funds that use other investment strategies.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Value Investment Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Value Investment Risk: Value stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause a fund to at times underperform equity funds that use other investment strategies. Value stocks can react differently to political, economic, and industry developments than the market as a whole and other types of stocks. Value stocks also may underperform the market for long periods of time.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Derivatives Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Derivatives Risk: Derivatives are instruments, such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal amount invested.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Securities Lending Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Securities Lending Risk: Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. Securities lending also may have certain adverse tax consequences.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Operational Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Operational Risk: Operational risks include human error, changes in personnel, system changes, faults in communication, and failures in systems, technology, or processes, and the use of artificial intelligence and machine learning (“AI”). Various operational events or circumstances are outside a fund’s or its advisor’s control, including instances at third parties. A fund and its advisor seek to reduce these operational risks through controls and procedures. However, measures that seek to reduce these operational risks through controls and procedures may not address every possible risk and may be inadequate to address these risks.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Cyber Security Risk
Risk/Return:	oef_RiskReturnAbstract
Risk [Text Block]	oef_RiskTextBlock	Cyber Security Risk: A fund and its service providers’ use of internet, technology and information systems may expose the fund to potential risks linked to cyber security breaches of those technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational functionality.
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| MSCI World ex USA Index (net dividends)
Risk/Return:	oef_RiskReturnAbstract
Average Annual Return, Label [Optional Text]	oef_AverageAnnualReturnLabel	MSCI World ex USA Index (net dividends)
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| MSCI World ex USA Index (net dividends)
Risk/Return:	oef_RiskReturnAbstract
Average Annual Return, Percent	oef_AvgAnnlRtrPct	31.85%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	9.46%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	8.55%
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Institutional Class
Risk/Return:	oef_RiskReturnAbstract
Management Fees (as a percentage of Assets)	oef_ManagementFeesOverAssets	0.14%
Other Expenses (as a percentage of Assets):	oef_OtherExpensesOverAssets	0.04%
Expenses (as a percentage of Assets)	oef_ExpensesOverAssets	0.18%
Expense Example, with Redemption, 1 Year	oef_ExpenseExampleYear01	$ 18
Expense Example, with Redemption, 3 Years	oef_ExpenseExampleYear03	58
Expense Example, with Redemption, 5 Years	oef_ExpenseExampleYear05	101
Expense Example, with Redemption, 10 Years	oef_ExpenseExampleYear10	230
Expense Example, No Redemption, 1 Year	oef_ExpenseExampleNoRedemptionYear01	18
Expense Example, No Redemption, 3 Years	oef_ExpenseExampleNoRedemptionYear03	58
Expense Example, No Redemption, 5 Years	oef_ExpenseExampleNoRedemptionYear05	101
Expense Example, No Redemption, 10 Years	oef_ExpenseExampleNoRedemptionYear10	$ 230
Highest Quarterly Return, Label [Optional Text]	oef_HighestQuarterlyReturnLabel	Highest Quarter
Highest Quarterly Return, Date	oef_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	oef_BarChartHighestQuarterlyReturn	17.27%
Lowest Quarterly Return, Label [Optional Text]	oef_LowestQuarterlyReturnLabel	Lowest Quarter
Lowest Quarterly Return, Date	oef_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	oef_BarChartLowestQuarterlyReturn	(24.43%)
Average Annual Return, Label [Optional Text]	oef_AverageAnnualReturnLabel	Return Before Taxes
Average Annual Return, Percent	oef_AvgAnnlRtrPct	33.91%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	10.12%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	9.02%
Annual Return [Percent]	oef_AnnlRtrPct	3.16%
Annual Return [Percent]	oef_AnnlRtrPct	25.37%
Annual Return [Percent]	oef_AnnlRtrPct	(14.14%)
Annual Return [Percent]	oef_AnnlRtrPct	22.04%
Annual Return [Percent]	oef_AnnlRtrPct	8.12%
Annual Return [Percent]	oef_AnnlRtrPct	12.81%
Annual Return [Percent]	oef_AnnlRtrPct	(13.03%)
Annual Return [Percent]	oef_AnnlRtrPct	17.87%
Annual Return [Percent]	oef_AnnlRtrPct	4.56%
Annual Return [Percent]	oef_AnnlRtrPct	33.91%
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Institutional Class \| After Taxes on Distributions
Risk/Return:	oef_RiskReturnAbstract
Average Annual Return, Label [Optional Text]	oef_AverageAnnualReturnLabel	Return After Taxes on Distributions
Average Annual Return, Percent	oef_AvgAnnlRtrPct	32.86%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	9.33%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	8.29%
Prospectus Summary \| LARGE CAP INTERNATIONAL PORTFOLIO \| Institutional Class \| After Taxes on Distributions and Sales
Risk/Return:	oef_RiskReturnAbstract
Average Annual Return, Label [Optional Text]	oef_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Portfolio Shares
Average Annual Return, Percent	oef_AvgAnnlRtrPct	20.70%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	7.88%
Average Annual Return, Percent	oef_AvgAnnlRtrPct	7.20%

Label

Element

Value

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO

Risk/Return:

oef_RiskReturnAbstract

Risk/Return [Heading]

oef_RiskReturnHeading

Large Cap International Portfolio

Objective [Heading]

oef_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

oef_ObjectivePrimaryTextBlock

The investment objective of the Large Cap International Portfolio (the “Portfolio”) is to achieve long-term capital appreciation.

Expense Heading [Optional Text]

oef_ExpenseHeading

Fees and Expenses of the Portfolio

Expense Narrative [Text Block]

oef_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy, hold or sell shares of the Portfolio. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.

Shareholder Fees Caption [Optional Text]

oef_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Optional Text]

oef_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

oef_PortfolioTurnoverHeading

PORTFOLIO TURNOVER

Portfolio Turnover [Text Block]

oef_PortfolioTurnoverTextBlock

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover 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 Fund Operating Expenses or in the Example, affect the Portfolio’s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was 8% of the average value of its investment portfolio.

Portfolio Turnover, Rate

oef_PortfolioTurnoverRate

8.00%

Expense Example [Heading]

oef_ExpenseExampleHeading

EXAMPLE

Expense Example Narrative [Text Block]

oef_ExpenseExampleNarrativeTextBlock

This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs whether you redeem or hold your shares would be:

Strategy [Heading]

oef_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

oef_StrategyNarrativeTextBlock

To achieve the Large Cap International Portfolio’s investment objective, Dimensional Fund Advisors LP (the “Advisor”) implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Portfolio’s design emphasizes long-term drivers of expected returns identified by the Advisor’s research, while balancing risk through broad diversification across companies, sectors, and countries. The Advisor’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs.

The Large Cap International Portfolio is designed to purchase securities of large non-U.S. companies in countries or regions designated by the Advisor as an approved market for investment. The Advisor may consider a company’s

size, relative price, and/or profitability relative to other eligible companies when making investment decisions for the Portfolio. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to change from time to time. The Advisor will seek to set country weights based on the relative adjusted market capitalizations of eligible large companies within each eligible country.

The Large Cap International Portfolio intends to purchase securities of large non-U.S. companies associated with developed market countries that the Advisor has designated as approved markets. As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in securities of large cap companies in the particular markets in which the Portfolio invests. The Advisor determines the minimum market capitalization of a large company with respect to each country or region in which the Portfolio invests. Based on market capitalization data as of December 31, 2025, for the Portfolio, the market capitalization of a large company in any country or region in which the Portfolio invests would be $1,852 million or above. This threshold will change due to market conditions.

The Advisor may also increase or reduce the Large Cap International Portfolio’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum and short-run reversals. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs.

The Large Cap International Portfolio may gain exposure to companies in an approved market by purchasing equity securities in the form of depositary receipts, which may be listed or traded outside the issuer’s domicile country. The Portfolio also may purchase or sell futures contracts and options on futures contracts for foreign or U.S. equity securities and indices to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio. Because many of the Portfolio’s investments may be denominated in foreign currencies, the Portfolio may enter into foreign currency exchange transactions, including foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer cash balances from one currency to another currency.

The Large Cap International Portfolio may lend its portfolio securities to generate additional income.

Bar Chart and Performance Table [Heading]

oef_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

oef_PerformanceNarrativeTextBlock

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after

taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

oef_PerformanceInformationIllustratesVariabilityOfReturns

Performance Availability Website Address [Text]

oef_PerformanceAvailabilityWebSiteAddress

https://www.dimensional.com/us-en/funds

Performance Past Does Not Indicate Future [Text]

oef_PerformancePastDoesNotIndicateFuture

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

oef_BarChartHeading

Large Cap International Portfolio Institutional Class Shares —Total Returns

Performance Table Heading

oef_PerformanceTableHeading

Annualized Returns (%)

Index No Deduction for Fees, Expenses, or Taxes [Text]

oef_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses or taxes on sales)

Performance Table Uses Highest Federal Rate

oef_PerformanceTableUsesHighestFederalRate

Performance Table Not Relevant to Tax Deferred

oef_PerformanceTableNotRelevantToTaxDeferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Principal Risks

Risk/Return:

oef_RiskReturnAbstract

Risk [Text Block]

oef_RiskTextBlock

Principal Risks

Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a description of principal risks of investing in the Portfolio.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Risk Lose Money [Member]

Risk/Return:

oef_RiskReturnAbstract

Risk [Text Block]

oef_RiskTextBlock

Because the value of your investment in the Portfolio will fluctuate, there is the risk that you will lose money.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Risk Not Insured [Member]

Risk/Return:

oef_RiskReturnAbstract

Risk [Text Block]

oef_RiskTextBlock

An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Equity Market Risk

Risk/Return:

oef_RiskReturnAbstract

Risk [Text Block]

oef_RiskTextBlock

Equity Market Risk: Even a long-term investment approach cannot guarantee a profit. Economic, market, environmental, political, and issuer-specific conditions and events will cause the value of equity securities, and a fund that owns them, to rise or fall. Stock markets are volatile, with periods of rising prices and periods of falling prices.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Foreign Securities and Currencies Risk

Risk/Return:

oef_RiskReturnAbstract

Risk [Text Block]

oef_RiskTextBlock

Foreign Securities and Currencies Risk: Foreign securities prices may decline or fluctuate because of: (a) economic or political actions of foreign governments, and/or (b) less regulated or liquid securities markets. Investors holding these securities may also be exposed to foreign currency risk (the possibility that foreign currency will fluctuate in value against the U.S. dollar or that a foreign government will convert, or be forced to convert, its currency to another currency, changing its value against the U.S. dollar). The Portfolio does not hedge foreign currency risk.

Foreign issuers may not be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable and publicly available financial and other information about such issuers, as compared to U.S. issuers. A fund may have greater difficulty voting proxies, exercising shareholder rights, securing dividends and/or interest and obtaining information regarding corporate actions on a timely basis, pursuing legal remedies, and

obtaining judgments with respect to foreign investments in foreign courts than with respect to domestic issuers in U.S. courts.

Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily available public information about the issuer.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Geographic Focus Risk

Risk/Return:

oef_RiskReturnAbstract

Risk [Text Block]

oef_RiskTextBlock

Geographic Focus Risk: If a fund focuses its investments in securities of issuers located in a particular country or region, the fund may be subjected, to a greater extent than if its investments were less focused, to the risks of volatile economic cycles and/or conditions and developments that may be particular to that country or region, such as: adverse securities markets; adverse exchange rates; adverse social, political, regulatory, economic, business, environmental or other developments; or natural disasters.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Profitability Investment Risk

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Profitability Investment Risk: High relative profitability stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause a fund to at times underperform equity funds that use other investment strategies.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Value Investment Risk

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Value Investment Risk: Value stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause a fund to at times underperform equity funds that use other investment strategies. Value stocks can react differently to political, economic, and industry developments than the market as a whole and other types of stocks. Value stocks also may underperform the market for long periods of time.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Derivatives Risk

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Derivatives Risk: Derivatives are instruments, such as futures contracts, and options thereon, and foreign currency forward contracts, whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. When a fund uses derivatives, the fund will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including counterparty, settlement, liquidity, interest rate, market, credit and management risks, as well as difficulties with respect to valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal amount invested.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Securities Lending Risk

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Securities Lending Risk: Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, a fund may lose money and there may be a delay in recovering the loaned securities. A fund could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. Securities lending also may have certain adverse tax consequences.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Operational Risk

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Operational Risk: Operational risks include human error, changes in personnel, system changes, faults in communication, and failures in systems, technology, or processes, and the use of artificial intelligence and machine learning (“AI”). Various operational events or circumstances are outside a fund’s or its advisor’s control, including instances at third parties. A fund and its advisor seek to reduce these operational risks through controls and procedures. However, measures that seek to reduce these operational risks through controls and procedures may not address every possible risk and may be inadequate to address these risks.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | Cyber Security Risk

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Cyber Security Risk: A fund and its service providers’ use of internet, technology and information systems may expose the fund to potential risks linked to cyber security breaches of those technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, customer data, or fund assets, or cause the fund and/or its service providers to suffer data corruption or lose operational functionality.

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | MSCI World ex USA Index (net dividends)

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MSCI World ex USA Index (net dividends)

Prospectus Summary | LARGE CAP INTERNATIONAL PORTFOLIO | MSCI World ex USA Index (net dividends)

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31.85%