485BPOS

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-1A

REGISTRATION STATEMENT (NO. 2-17620) UNDER

THE SECURITIES ACT OF 1933

Post-Effective Amendment No. 156

and

REGISTRATION STATEMENT (NO. 811-01027) UNDER THE INVESTMENT COMPANY

ACT OF 1940

Amendment No. 156

VANGUARD WORLD FUND

(Exact Name of Registrant as Specified in Declaration of Trust)

P.O. Box 2600, Valley Forge, PA 19482

(Address of Principal Executive Office)

Registrant’s Telephone Number (610) 669-1000

Anne E. Robinson, Esquire

P.O. Box 876

Valley Forge, PA 19482

It is proposed that this filing will become effective (check appropriate box)

[X] immediately upon filing pursuant to paragraph (b)

[ ] on (date) pursuant to paragraph (b)

[ ] 60 days after filing pursuant to paragraph (a)(1)

[ ] on , (date) pursuant to paragraph (a)(1)

[ ] 75 days after filing pursuant to paragraph (a)(2)

[ ] on (date) pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

[ ] This post-effective amendment designates a new effective date for a

previously filed post-effective amendment.

SIGNATURES
Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the
Registrant hereby certifies that it meets all requirements for effectiveness of this Registration Statement
pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be
signed on its behalf by the undersigned, thereunto duly authorized, in the Town of Valley Forge and the
Commonwealth of Pennsylvania, on the 9th day of October, 2018.
	VANGUARD WORLD FUND
	BY:________/s/ Mortimer J. Buckley*
	Mortimer J. Buckley
	Chief Executive Officer, President, and Trustee
Pursuant to the requirements of the Securities Act, this Post-Effective Amendment to the
Registration Statement has been signed below by the following persons in the capacities and on
the date indicated:
Signature	Title	Date
/s/ F. William McNabb III*	Chairman of the Board of	October 9, 2018
	Trustees
F. William McNabb
/s/ Mortimer J. Buckley*	Chief Executive Officer,	October 9, 2018
	President, and Trustee
Mortimer J. Buckley
/s/ Emerson U. Fullwood*	Trustee	October 9, 2018
Emerson U. Fullwood
/s/ Amy Gutmann*	Trustee	October 9, 2018
Amy Gutmann
/s/ JoAnn Heffernan Heisen*	Trustee	October 9, 2018
JoAnn Heffernan Heisen
/s/ F. Joseph Loughrey*	Trustee	October 9, 2018
F. Joseph Loughrey
/s/ Mark Loughridge*	Trustee	October 9, 2018
Mark Loughridge
/s/ Scott C. Malpass*	Trustee	October 9, 2018
Scott C. Malpass
/s/ Deanna Mulligan*	Trustee	October 9, 2018
Deanna Mulligan
/s/ André F. Perold*	Trustee	October 9, 2018
André F. Perold
/s/ Sarah Bloom Raskin*	Trustee	October 9, 2018
Sarah Bloom Raskin
/s/ Peter F. Volanakis*	Trustee	October 9, 2018
Peter F. Volanakis
/s/ Thomas J. Higgins*	Chief Financial Officer	October 9, 2018
Thomas J. Higgins
*By: /s/ Anne E. Robinson
Anne E. Robinson, pursuant to a Power of Attorney filed on January 18, 2018, see File Number 33-32216,
Incorporated by Reference.

INDEX TO EXHIBITS
XBRL Instance Document	Ex-101.INS
XBRL Taxonomy Extension Schema Document	Ex-101.SCH
XBRL Taxonomy Extension Calculation Linkbase Document	Ex-101.CAL
XBRL Taxonomy Extension Definition Linkbase Document.	Ex-101.DEF
XBRL Taxonomy Extension Labels Linkbase Document	Ex-101.LAB
XBRL Taxonomy Extension Presentation Linkbase Document	Ex-101.PRE

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Sep. 18, 2018
Registrant Name	dei_EntityRegistrantName	VANGUARD WORLD FUND
Central Index Key	dei_EntityCentralIndexKey	0000052848
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Sep. 18, 2018
Document Effective Date	dei_DocumentEffectiveDate	Sep. 18, 2018
Prospectus Date	rr_ProspectusDate	Sep. 18, 2018

XML

Vanguard ESG U.S. Stock ETF

ETF Summary

Investment Objective

The Fund seeks to track the performance of a benchmark index that measures the investment return of large-, mid-, and small-capitalization stocks of U.S. companies and is screened for certain environmental, social, and corporate governance criteria.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

Shareholder Fees<br/><br/>(Fees paid directly from your investment)

Shareholder Fees	Vanguard ESG U.S. Stock ETF ETF Shares USD ($)	[1]
Transaction Fee on Purchases and Sales	none
Transaction Fee on Reinvested Dividends	none

Annual Fund Operating Expenses<br/><br/>(Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Vanguard ESG U.S. Stock ETF ETF Shares
Management Fees	0.06%
12b-1 Distribution Fee	none
Other Expenses	0.06%
Total Annual Fund Operating Expenses	0.12%	[1]

Example

The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. It illustrates the hypothetical expenses that you would incur over various periods if you were to invest $10,000 in the Fund’s shares. This example assumes that the Fund provides a return of 5% each year and that total annual fund operating expenses remain as stated in the preceding table. You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years
Vanguard ESG U.S. Stock ETF | ETF Shares | USD ($)	12	39

This example does not include the brokerage commissions that you may pay to buy and sell shares of the Fund.

Portfolio Turnover

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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund’s performance. The Fund has no operating history and, therefore, has no portfolio turnover information.

Principal Investment Strategies

The Fund employs an indexing investment approach designed to track the performance of the FTSE US All Cap Choice Index. The Index, which is market-capitalization weighted, is composed of large-, mid-, and small-cap stocks of companies located in the United States and is screened for certain environmental, social, and corporate governance (ESG) criteria by the Index sponsor, which is independent of Vanguard. Specifically, the Index excludes stocks of companies in the following industries: adult entertainment, alcohol and tobacco, weapons, fossil fuels, gambling, and nuclear power. The index methodology also excludes the stocks of companies that do not meet the labor, human rights, environmental, and anti-corruption standards as defined by the United Nations Global Compact Principles, as well as companies that do not meet certain diversity criteria.

The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.

Principal Risks

An investment in the Fund could lose money over short or long periods of time. You should expect the Fund’s share price and total return to fluctuate within a wide range. The Fund is subject to the following risks, which could affect the Fund’s performance:

• Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund‘s target index tracks a subset of the U.S. stock market, which could cause the Fund to perform differently from the overall market. In addition, historically, small- and mid-cap stocks have been more volatile in price than the large-cap stocks that dominate the overall market, and they often perform quite differently. Small and mid-size companies tend to have greater stock volatility because, among other things, these companies tend to be more sensitive to changing economic conditions.

• ESG investing risk, which is the chance that the stocks screened by the index sponsor for ESG criteria generally will underperform the stock market as a whole or that the particular stocks selected for the FTSE US All Cap Choice Index will, in the aggregate, trail returns of other funds screened for ESG criteria.

Because ETF Shares are traded on an exchange, they are subject to additional risks:

• The Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., and are bought and sold on the secondary market at market prices. Although it is expected that the market price of an ETF Share typically will approximate its net asset value (NAV), there may be times when the market price and the NAV differ significantly. Thus, you may pay more or less than NAV when you buy ETF Shares on the secondary market, and you may receive more or less than NAV when you sell those shares.

• Although the Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., it is possible that an active trading market may not be maintained.

• Trading of the Fund’s ETF Shares may be halted by the activation of individual or marketwide trading halts (which halt trading for a specific period of time when the price of a particular security or overall market prices decline by a specified percentage). Trading of the Fund’s ETF Shares may also be halted if (1) the shares are delisted from Cboe BZX Exchange, Inc., without first being listed on another exchange or (2) Cboe BZX Exchange, Inc., officials determine that such action is appropriate in the interest of a fair and orderly market or for the protection of investors.

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

Annual Total Returns

This is the Fund‘s initial prospectus, so it does not contain performance data.

[1] None through Vanguard (Broker fees vary)

[1] The expense information shown in the table reflects estimated amounts for the current fiscal year.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	VANGUARD WORLD FUND
Prospectus Date	rr_ProspectusDate	Sep. 18, 2018
Vanguard ESG U.S. Stock ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	ETF Summary
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks to track the performance of a benchmark index that measures the investment return of large-, mid-, and small-capitalization stocks of U.S. companies and is screened for certain environmental, social, and corporate governance criteria.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees<br/><br/>(Fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses<br/><br/>(Expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund’s performance. The Fund has no operating history and, therefore, has no portfolio turnover information.
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This example does not include the brokerage commissions that you may pay to buy and sell shares of the Fund.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	The expense information shown in the table reflects estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. It illustrates the hypothetical expenses that you would incur over various periods if you were to invest $10,000 in the Fund’s shares. This example assumes that the Fund provides a return of 5% each year and that total annual fund operating expenses remain as stated in the preceding table. You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example Closing [Text Block]	rr_ExpenseExampleClosingTextBlock	This example does not include the brokerage commissions that you may pay to buy and sell shares of the Fund.
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund employs an indexing investment approach designed to track the performance of the FTSE US All Cap Choice Index. The Index, which is market-capitalization weighted, is composed of large-, mid-, and small-cap stocks of companies located in the United States and is screened for certain environmental, social, and corporate governance (ESG) criteria by the Index sponsor, which is independent of Vanguard. Specifically, the Index excludes stocks of companies in the following industries: adult entertainment, alcohol and tobacco, weapons, fossil fuels, gambling, and nuclear power. The index methodology also excludes the stocks of companies that do not meet the labor, human rights, environmental, and anti-corruption standards as defined by the United Nations Global Compact Principles, as well as companies that do not meet certain diversity criteria. The Fund attempts to replicate the target index by investing all, or substantially all, of its assets in the stocks that make up the Index, holding each stock in approximately the same proportion as its weighting in the Index.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	An investment in the Fund could lose money over short or long periods of time. You should expect the Fund’s share price and total return to fluctuate within a wide range. The Fund is subject to the following risks, which could affect the Fund’s performance: • Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund‘s target index tracks a subset of the U.S. stock market, which could cause the Fund to perform differently from the overall market. In addition, historically, small- and mid-cap stocks have been more volatile in price than the large-cap stocks that dominate the overall market, and they often perform quite differently. Small and mid-size companies tend to have greater stock volatility because, among other things, these companies tend to be more sensitive to changing economic conditions. • ESG investing risk, which is the chance that the stocks screened by the index sponsor for ESG criteria generally will underperform the stock market as a whole or that the particular stocks selected for the FTSE US All Cap Choice Index will, in the aggregate, trail returns of other funds screened for ESG criteria. Because ETF Shares are traded on an exchange, they are subject to additional risks: • The Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., and are bought and sold on the secondary market at market prices. Although it is expected that the market price of an ETF Share typically will approximate its net asset value (NAV), there may be times when the market price and the NAV differ significantly. Thus, you may pay more or less than NAV when you buy ETF Shares on the secondary market, and you may receive more or less than NAV when you sell those shares. • Although the Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., it is possible that an active trading market may not be maintained. • Trading of the Fund’s ETF Shares may be halted by the activation of individual or marketwide trading halts (which halt trading for a specific period of time when the price of a particular security or overall market prices decline by a specified percentage). Trading of the Fund’s ETF Shares may also be halted if (1) the shares are delisted from Cboe BZX Exchange, Inc., without first being listed on another exchange or (2) Cboe BZX Exchange, Inc., officials determine that such action is appropriate in the interest of a fair and orderly market or for the protection of investors. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	An investment in the Fund could lose money over short or long periods of time.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Annual Total Returns
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	This is the Fund‘s initial prospectus, so it does not contain performance data.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	This is the Fund‘s initial prospectus, so it does not contain performance data.
Vanguard ESG U.S. Stock ETF | ETF Shares
Risk/Return:	rr_RiskReturnAbstract
Transaction Fee on Purchases and Sales	world_TransactionFeeOnPurchasesAndSales	none	[1]
Transaction Fee on Reinvested Dividends	world_TransactionFeeOnReinvestedDividends	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.06%
12b-1 Distribution Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.06%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.12%	[2]
1 Year	rr_ExpenseExampleYear01	$ 12
3 Years	rr_ExpenseExampleYear03	39
1 Year	rr_ExpenseExampleNoRedemptionYear01	12
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 39

[1] None through Vanguard (Broker fees vary)

[2] The expense information shown in the table reflects estimated amounts for the current fiscal year.

XML

Vanguard ESG International Stock ETF

ETF Summary

Investment Objective

The Fund seeks to track the performance of a benchmark index that measures the investment return of large-, mid-, and small-capitalization stocks of companies located in developed and emerging markets outside of the United States and is screened for certain environmental, social, and corporate governance criteria.

Fees and Expenses

The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.

Shareholder Fees<br/><br/>(Fees paid directly from your investment)

Shareholder Fees	Vanguard ESG International Stock ETF ETF Shares USD ($)	[1]
Transaction Fee on Purchases and Sales	none
Transaction Fee on Reinvested Dividends	none

Annual Fund Operating Expenses<br/><br/> (Expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Vanguard ESG International Stock ETF ETF Shares
Management Fees	0.06%
12b-1 Distribution Fee	none
Other Expenses	0.09%
Total Annual Fund Operating Expenses	0.15%	[1]

Example

The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you were to invest $10,000 in the Fund’s shares. This example assumes that the Fund provides a return of 5% each year and that total annual fund operating expenses remain as stated in the preceding table. You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	1 Year	3 Years
Vanguard ESG International Stock ETF | ETF Shares | USD ($)	15	48

This example does not include the brokerage commissions that you may pay to buy and sell shares of the Fund.

Portfolio Turnover

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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund’s performance. The Fund has no operating history and, therefore, has no portfolio turnover information.

Principal Investment Strategies

The Fund employs an indexing investment approach designed to track the performance of the FTSE Global All Cap ex US Choice Index. The Index, which is market-capitalization weighted, is composed of large-, mid-, and small-cap stocks of companies in developed and emerging markets, excluding the United States, and is screened for certain environmental, social, and corporate governance (ESG) criteria by the Index sponsor, which is independent of Vanguard. Specifically, the Index excludes stocks of companies in the following industries: adult entertainment, alcohol and tobacco, weapons, fossil fuels, gambling, and nuclear power. The index methodology also excludes the stocks of companies that do not meet the labor, human rights, environmental, and anti-corruption standards as defined by the United Nations Global Compact Principles, as well as companies that do not meet certain diversity criteria.

The Fund invests by sampling the Index, meaning that it holds a broadly diversified collection of securities that, in the aggregate, approximates the full Index in terms of key characteristics. These key characteristics include industry weightings and market capitalization, as well as certain financial measures, such as price/earnings ratio and dividend yield.

Principal Risks

An investment in the Fund could lose money over short or long periods of time. You should expect the Fund’s share price and total return to fluctuate within a wide range. The Fund is subject to the following risks, which could affect the Fund’s performance:

• Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund‘s investments in foreign stocks can be riskier than U.S. stock investments. Foreign stocks tend to be more volatile and less liquid than U.S. stocks. The prices of foreign stocks and the prices of U.S. stocks may move in opposite directions. In addition, historically, non-U.S. small- and mid-cap stocks have been more volatile in price than the large-cap stocks that dominate the global markets, and they often perform quite differently. Small and mid-size companies tend to have greater stock volatility because, among other things, these companies tend to be more sensitive to changing economic conditions.

• ESG investing risk, which is the chance that the stocks screened by the index sponsor for ESG criteria generally will underperform the stock market as a whole or that the particular stocks selected for the FTSE Global All Cap ex US Choice Index will, in the aggregate, trail returns of other funds screened for ESG criteria.

• Country/regional risk, which is the chance that world events—such as political upheaval, financial troubles, or natural disasters—will adversely affect the value of securities issued by companies in foreign countries or regions. Because the Fund may invest a large portion of its assets in securities of companies located in any one country or region, the Fund’s performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk is especially high in emerging markets.

• Emerging markets risk, which is the chance that the stocks of companies located in emerging markets will be substantially more volatile, and substantially less liquid, than the stocks of companies located in more developed foreign markets because, among other factors, emerging markets can have greater custodial and operational risks; less developed legal, tax, regulatory, and accounting systems; and greater political, social, and economic instability than developed markets.

• Currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Currency risk is especially high in emerging markets.

• Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund‘s target index.

Because ETF Shares are traded on an exchange, they are subject to additional risks:

• The Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., and are bought and sold on the secondary market at market prices. Although it is expected that the market price of an ETF Share typically will approximate its net asset value (NAV), there may be times when the market price and the NAV differ significantly. Thus, you may pay more or less than NAV when you buy ETF Shares on the secondary market, and you may receive more or less than NAV when you sell those shares.

• Although the Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., it is possible that an active trading market may not be maintained.

• Trading of the Fund’s ETF Shares may be halted by the activation of individual or marketwide trading halts (which halt trading for a specific period of time when the price of a particular security or overall market prices decline by a specified percentage). Trading of the Fund’s ETF Shares may also be halted if (1) the shares are delisted from Cboe BZX Exchange, Inc., without first being listed on another exchange or (2) Cboe BZX Exchange, Inc., officials determine that such action is appropriate in the interest of a fair and orderly market or for the protection of investors.

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

Annual Total Returns

This is the Fund‘s initial prospectus, so it does not contain performance data.

[1] None through Vanguard (Broker fees vary)

[1] The expense information shown in the table reflects estimated amounts for the current fiscal year.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	VANGUARD WORLD FUND
Prospectus Date	rr_ProspectusDate	Sep. 18, 2018
Vanguard ESG International Stock ETF
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	ETF Summary
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks to track the performance of a benchmark index that measures the investment return of large-, mid-, and small-capitalization stocks of companies located in developed and emerging markets outside of the United States and is screened for certain environmental, social, and corporate governance criteria.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	The following table describes the fees and expenses you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees<br/><br/>(Fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	Annual Fund Operating Expenses<br/><br/> (Expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	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 more taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the previous expense example, reduce the Fund’s performance. The Fund has no operating history and, therefore, has no portfolio turnover information.
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	This example does not include the brokerage commissions that you may pay to buy and sell shares of the Fund.
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	The expense information shown in the table reflects estimated amounts for the current fiscal year.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. It illustrates the hypothetical expenses that you would incur over various periods if you were to invest $10,000 in the Fund’s shares. This example assumes that the Fund provides a return of 5% each year and that total annual fund operating expenses remain as stated in the preceding table. You would incur these hypothetical expenses whether or not you redeem your investment at the end of the given period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example Closing [Text Block]	rr_ExpenseExampleClosingTextBlock	This example does not include the brokerage commissions that you may pay to buy and sell shares of the Fund.
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund employs an indexing investment approach designed to track the performance of the FTSE Global All Cap ex US Choice Index. The Index, which is market-capitalization weighted, is composed of large-, mid-, and small-cap stocks of companies in developed and emerging markets, excluding the United States, and is screened for certain environmental, social, and corporate governance (ESG) criteria by the Index sponsor, which is independent of Vanguard. Specifically, the Index excludes stocks of companies in the following industries: adult entertainment, alcohol and tobacco, weapons, fossil fuels, gambling, and nuclear power. The index methodology also excludes the stocks of companies that do not meet the labor, human rights, environmental, and anti-corruption standards as defined by the United Nations Global Compact Principles, as well as companies that do not meet certain diversity criteria. The Fund invests by sampling the Index, meaning that it holds a broadly diversified collection of securities that, in the aggregate, approximates the full Index in terms of key characteristics. These key characteristics include industry weightings and market capitalization, as well as certain financial measures, such as price/earnings ratio and dividend yield.
Risk [Heading]	rr_RiskHeading	Principal Risks
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	An investment in the Fund could lose money over short or long periods of time. You should expect the Fund’s share price and total return to fluctuate within a wide range. The Fund is subject to the following risks, which could affect the Fund’s performance: • Stock market risk, which is the chance that stock prices overall will decline. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices. The Fund‘s investments in foreign stocks can be riskier than U.S. stock investments. Foreign stocks tend to be more volatile and less liquid than U.S. stocks. The prices of foreign stocks and the prices of U.S. stocks may move in opposite directions. In addition, historically, non-U.S. small- and mid-cap stocks have been more volatile in price than the large-cap stocks that dominate the global markets, and they often perform quite differently. Small and mid-size companies tend to have greater stock volatility because, among other things, these companies tend to be more sensitive to changing economic conditions. • ESG investing risk, which is the chance that the stocks screened by the index sponsor for ESG criteria generally will underperform the stock market as a whole or that the particular stocks selected for the FTSE Global All Cap ex US Choice Index will, in the aggregate, trail returns of other funds screened for ESG criteria. • Country/regional risk, which is the chance that world events—such as political upheaval, financial troubles, or natural disasters—will adversely affect the value of securities issued by companies in foreign countries or regions. Because the Fund may invest a large portion of its assets in securities of companies located in any one country or region, the Fund’s performance may be hurt disproportionately by the poor performance of its investments in that area. Country/regional risk is especially high in emerging markets. • Emerging markets risk, which is the chance that the stocks of companies located in emerging markets will be substantially more volatile, and substantially less liquid, than the stocks of companies located in more developed foreign markets because, among other factors, emerging markets can have greater custodial and operational risks; less developed legal, tax, regulatory, and accounting systems; and greater political, social, and economic instability than developed markets. • Currency risk, which is the chance that the value of a foreign investment, measured in U.S. dollars, will decrease because of unfavorable changes in currency exchange rates. Currency risk is especially high in emerging markets. • Index sampling risk, which is the chance that the securities selected for the Fund, in the aggregate, will not provide investment performance matching that of the Fund‘s target index. Because ETF Shares are traded on an exchange, they are subject to additional risks: • The Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., and are bought and sold on the secondary market at market prices. Although it is expected that the market price of an ETF Share typically will approximate its net asset value (NAV), there may be times when the market price and the NAV differ significantly. Thus, you may pay more or less than NAV when you buy ETF Shares on the secondary market, and you may receive more or less than NAV when you sell those shares. • Although the Fund’s ETF Shares are listed for trading on Cboe BZX Exchange, Inc., it is possible that an active trading market may not be maintained. • Trading of the Fund’s ETF Shares may be halted by the activation of individual or marketwide trading halts (which halt trading for a specific period of time when the price of a particular security or overall market prices decline by a specified percentage). Trading of the Fund’s ETF Shares may also be halted if (1) the shares are delisted from Cboe BZX Exchange, Inc., without first being listed on another exchange or (2) Cboe BZX Exchange, Inc., officials determine that such action is appropriate in the interest of a fair and orderly market or for the protection of investors. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Risk Lose Money [Text]	rr_RiskLoseMoney	An investment in the Fund could lose money over short or long periods of time.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Annual Total Returns
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	This is the Fund‘s initial prospectus, so it does not contain performance data.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	This is the Fund‘s initial prospectus, so it does not contain performance data.
Vanguard ESG International Stock ETF | ETF Shares
Risk/Return:	rr_RiskReturnAbstract
Transaction Fee on Purchases and Sales	world_TransactionFeeOnPurchasesAndSales	none	[1]
Transaction Fee on Reinvested Dividends	world_TransactionFeeOnReinvestedDividends	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.06%
12b-1 Distribution Fee	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.09%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.15%	[2]
1 Year	rr_ExpenseExampleYear01	$ 15
3 Years	rr_ExpenseExampleYear03	48
1 Year	rr_ExpenseExampleNoRedemptionYear01	15
3 Years	rr_ExpenseExampleNoRedemptionYear03	$ 48

[1] None through Vanguard (Broker fees vary)

[2] The expense information shown in the table reflects estimated amounts for the current fiscal year.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	VANGUARD WORLD FUND
Prospectus Date	rr_ProspectusDate	Sep. 18, 2018
Document Creation Date	dei_DocumentCreationDate	Sep. 18, 2018