v3.26.1
Shareholder Report
 6 Months Ended
Apr. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Vanguard International Equity Index Funds
Entity Central Index Key 0000857489
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2026
C000015900 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Emerging Markets Stock Index Fund
Class Name Investor Shares
Trading Symbol VEIEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2025, to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Investor Shares $15 0.29%1
​1
Annualized.
Expenses Paid, Amount $ 15
Expense Ratio, Percent 0.29% [1]
Net Assets $ 159,862,000,000
Holdings Count | Holding 6,408
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of April 30, 2026)
Fund Net Assets
(in millions)		 $159,862
Number of Portfolio Holdings 6,408
Portfolio Turnover Rate 2%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of April 30, 2026)
Africa 3.9%
Asia 86.0%
Europe 1.4%
North America 2.2%
South America 5.7%
Other Assets and Liabilities—Net 0.8%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Capital Management, LLC.
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000015902 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Emerging Markets Stock Index Fund
Class Name FTSE Emerging Markets ETF Shares
Trading Symbol VWO
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2025, to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
FTSE Emerging Markets ETF Shares $3 0.06%1
​1
Annualized.
Expenses Paid, Amount $ 3
Expense Ratio, Percent 0.06% [2]
Net Assets $ 159,862,000,000
Holdings Count | Holding 6,408
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of April 30, 2026)
Fund Net Assets
(in millions)		 $159,862
Number of Portfolio Holdings 6,408
Portfolio Turnover Rate 2%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of April 30, 2026)
Africa 3.9%
Asia 86.0%
Europe 1.4%
North America 2.2%
South America 5.7%
Other Assets and Liabilities—Net 0.8%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Capital Management, LLC.
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000096106 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Emerging Markets Stock Index Fund
Class Name Institutional Plus Shares
Trading Symbol VEMRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2025, to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Institutional Plus Shares $3 0.06%1
​1
Annualized.
Expenses Paid, Amount $ 3
Expense Ratio, Percent 0.06% [3]
Net Assets $ 159,862,000,000
Holdings Count | Holding 6,408
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of April 30, 2026)
Fund Net Assets
(in millions)		 $159,862
Number of Portfolio Holdings 6,408
Portfolio Turnover Rate 2%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of April 30, 2026)
Africa 3.9%
Asia 86.0%
Europe 1.4%
North America 2.2%
South America 5.7%
Other Assets and Liabilities—Net 0.8%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Capital Management, LLC.
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000015901 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Emerging Markets Stock Index Fund
Class Name Institutional Shares
Trading Symbol VEMIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2025, to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Institutional Shares $4 0.07%1
​1
Annualized.
Expenses Paid, Amount $ 4
Expense Ratio, Percent 0.07% [4]
Net Assets $ 159,862,000,000
Holdings Count | Holding 6,408
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of April 30, 2026)
Fund Net Assets
(in millions)		 $159,862
Number of Portfolio Holdings 6,408
Portfolio Turnover Rate 2%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of April 30, 2026)
Africa 3.9%
Asia 86.0%
Europe 1.4%
North America 2.2%
South America 5.7%
Other Assets and Liabilities—Net 0.8%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Capital Management, LLC.
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
C000035633 [Member]  
Shareholder Report [Line Items]  
Fund Name Vanguard Emerging Markets Stock Index Fund
Class Name Admiral™ Shares
Trading Symbol VEMAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2025, to April 30, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature. You can also request this information by contacting us at 800-662-7447.
Material Fund Change Notice [Text Block] The report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 800-662-7447
Additional Information Website https://personal1.vanguard.com/ngf‑next‑gen‑form‑webapp/fund‑literature
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Share Class Name Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Admiral Shares $7 0.13%1
​1
Annualized.
Expenses Paid, Amount $ 7
Expense Ratio, Percent 0.13% [5]
Net Assets $ 159,862,000,000
Holdings Count | Holding 6,408
Investment Company Portfolio Turnover 2.00%
Additional Fund Statistics [Text Block]
Fund Statistics
(as of April 30, 2026)
Fund Net Assets
(in millions)		 $159,862
Number of Portfolio Holdings 6,408
Portfolio Turnover Rate 2%
Holdings [Text Block]
Portfolio Composition % of Net Assets
(as of April 30, 2026)
Africa 3.9%
Asia 86.0%
Europe 1.4%
North America 2.2%
South America 5.7%
Other Assets and Liabilities—Net 0.8%
This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities.
Material Fund Change [Text Block]
How has the Fund changed?
Effective January 12, 2026, The Vanguard Group, Inc. exercises portfolio management responsibilities for the fund through its wholly-owned subsidiary, Vanguard Capital Management, LLC.
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Summary of Change Legend [Text Block]
This is a summary of certain changes to the Fund since October 31, 2025. For more complete information, you may review the Fund’s prospectus at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 800-662-7447.
Updated Prospectus Phone Number 800-662-7447
Updated Prospectus Web Address https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature
[1]
Annualized.
[2]
Annualized.
[3]
Annualized.
[4]
Annualized.
[5]
Annualized.