| Form N-CSR Cover | 12 Months Ended |
| Oct. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| 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 | Oct. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Oct. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| 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 | Oct. 31, 2024 |
| 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 annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2023 |
| Shareholder Report Annual or Semi-Annual | 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 year? (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 $ 0.10 % |
| Expenses Paid, Amount | $ 11 |
| Expense Ratio, Percent | 0.10% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the reporting period? For the 12 months ended October 31, 2024, the Fund underperformed its benchmark. Global economic growth appeared relatively stable at around 3% during the period, and U.S. recession fears faded. With inflation continuing to moderate across much of the world, major central banks including the European Central Bank, the Bank of England, and the U.S. Federal Reserve began lowering policy rates. Global stocks posted strong returns. Several markets saw double-digit returns. Stocks in Taiwan, India, and China, which accounted for about three-quarters of the benchmark’s market value as of October 31, drove performance. By sector, technology and financial companies contributed the most. The Fund underperformed for two reasons. First, the Fund had to set aside assets to satisfy capital gains taxes in certain markets. Second, the Fund uses fair-value pricing, which primarily adjusts for fluctuations in the market value of securities on exchanges that close before the Fund's pricing time and affects how net asset value is calculated. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. Cumulative Performance: October 31, 2014, Through October 31, 2024 Initial Investment of $ 5,000,000 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Institutional Shares 25.43% 4.95% 3.64% Spliced Emerging Markets Index 27.08% 5.34% 3.85% FTSE Global All Cap ex US Index 24.45% 6.12% 5.13% |
| No Deduction of Taxes [Text Block] | The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. |
| Net Assets | $ 112,970,000,000 |
| Holdings Count | Holding | 5,936 |
| Advisory Fees Paid, Amount | $ 4,101,000 |
| Investment Company Portfolio Turnover | 8% |
| Additional Fund Statistics [Text Block] | Fund Statistics Fund Net Assets $ Number of Portfolio Holdings 5,936 Portfolio Turnover Rate 8 % Total Investment Advisory Fees $ |
| Holdings [Text Block] | This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities. Portfolio Composition % of Net Assets Africa 3.5 % Asia 87.6 % Europe 1.1 % North America 2.0 % South America 5.1 % Other Assets and Liabilities—Net 0.7 % |
| Material Fund Change [Text Block] | How has the Fund changed? The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. The Fund added nondiversification risk and sector risk as a principal risks. This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Material Fund Change Strategies [Text Block] | The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. |
| Material Fund Change Risks Change [Text Block] | The Fund added nondiversification risk and sector risk as a principal risks. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Updated Prospectus Phone Number | 877-662-7447 |
| Updated Prospectus Web Address | https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature |
| 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 annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2023 |
| Shareholder Report Annual or Semi-Annual | 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 year? (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 $ 0.29 % |
| Expenses Paid, Amount | $ 33 |
| Expense Ratio, Percent | 0.29% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the reporting period? For the 12 months ended October 31, 2024, the Fund underperformed its benchmark. Global economic growth appeared relatively stable at around 3% during the period, and U.S. recession fears faded. With inflation continuing to moderate across much of the world, major central banks including the European Central Bank, the Bank of England, and the U.S. Federal Reserve began lowering policy rates. Global stocks posted strong returns. Several markets saw double-digit returns. Stocks in Taiwan, India, and China, which accounted for about three-quarters of the benchmark’s market value as of October 31, drove performance. By sector, technology and financial companies contributed the most. The Fund underperformed for two reasons. First, the Fund had to set aside assets to satisfy capital gains taxes in certain markets. Second, the Fund uses fair-value pricing, which primarily adjusts for fluctuations in the market value of securities on exchanges that close before the Fund's pricing time and affects how net asset value is calculated. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. Cumulative Performance: October 31, 2014, Through October 31, 2024 Initial Investment of $ 10,000 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Investor Shares 25.18% 4.75% 3.44% Spliced Emerging Markets Index 27.08% 5.34% 3.85% FTSE Global All Cap ex US Index 24.45% 6.12% 5.13% |
| No Deduction of Taxes [Text Block] | The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. |
| Net Assets | $ 112,970,000,000 |
| Holdings Count | Holding | 5,936 |
| Advisory Fees Paid, Amount | $ 4,101,000 |
| Investment Company Portfolio Turnover | 8% |
| Additional Fund Statistics [Text Block] | Fund Statistics Fund Net Assets $ Number of Portfolio Holdings 5,936 Portfolio Turnover Rate 8 % Total Investment Advisory Fees $ |
| Holdings [Text Block] | This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities. Portfolio Composition % of Net Assets Africa 3.5 % Asia 87.6 % Europe 1.1 % North America 2.0 % South America 5.1 % Other Assets and Liabilities—Net 0.7 % |
| Material Fund Change [Text Block] | How has the Fund changed? The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. The Fund added nondiversification risk and sector risk as a principal risks. This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Material Fund Change Strategies [Text Block] | The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. |
| Material Fund Change Risks Change [Text Block] | The Fund added nondiversification risk and sector risk as a principal risks. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Updated Prospectus Phone Number | 877-662-7447 |
| 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 annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2023 |
| Shareholder Report Annual or Semi-Annual | 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 year? (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 $ 0.08 % |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the reporting period? For the 12 months ended October 31, 2024, the Fund underperformed its benchmark. Global economic growth appeared relatively stable at around 3% during the period, and U.S. recession fears faded. With inflation continuing to moderate across much of the world, major central banks including the European Central Bank, the Bank of England, and the U.S. Federal Reserve began lowering policy rates. Global stocks posted strong returns. Several markets saw double-digit returns. Stocks in Taiwan, India, and China, which accounted for about three-quarters of the benchmark’s market value as of October 31, drove performance. By sector, technology and financial companies contributed the most. The Fund underperformed for two reasons. First, the Fund had to set aside assets to satisfy capital gains taxes in certain markets. Second, the Fund uses fair-value pricing, which primarily adjusts for fluctuations in the market value of securities on exchanges that close before the Fund's pricing time and affects how net asset value is calculated. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. Cumulative Performance: October 31, 2014, Through October 31, 2024 Initial Investment of $ 10,000 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years FTSE Emerging Markets ETF Shares Net Asset Value 25.46% 4.98% 3.65% FTSE Emerging Markets ETF Shares Market Price 26.41% 5.13% 3.71% Spliced Emerging Markets Index 27.08% 5.34% 3.85% FTSE Global All Cap ex US Index 24.45% 6.12% 5.13% |
| No Deduction of Taxes [Text Block] | The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. |
| Net Assets | $ 112,970,000,000 |
| Holdings Count | Holding | 5,936 |
| Advisory Fees Paid, Amount | $ 4,101,000 |
| Investment Company Portfolio Turnover | 8% |
| Additional Fund Statistics [Text Block] | Fund Statistics Fund Net Assets $ Number of Portfolio Holdings 5,936 Portfolio Turnover Rate 8 % Total Investment Advisory Fees $ |
| Holdings [Text Block] | This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities. Portfolio Composition % of Net Assets Africa 3.5 % Asia 87.6 % Europe 1.1 % North America 2.0 % South America 5.1 % Other Assets and Liabilities—Net 0.7 % |
| Material Fund Change [Text Block] | How has the Fund changed? The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. The Fund added nondiversification risk and sector risk as a principal risks. This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Material Fund Change Strategies [Text Block] | The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. |
| Material Fund Change Risks Change [Text Block] | The Fund added nondiversification risk and sector risk as a principal risks. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Updated Prospectus Phone Number | 877-662-7447 |
| 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 annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2023 |
| Shareholder Report Annual or Semi-Annual | 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 year? (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 $ 0.08 % |
| Expenses Paid, Amount | $ 9 |
| Expense Ratio, Percent | 0.08% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the reporting period? For the 12 months ended October 31, 2024, the Fund underperformed its benchmark. Global economic growth appeared relatively stable at around 3% during the period, and U.S. recession fears faded. With inflation continuing to moderate across much of the world, major central banks including the European Central Bank, the Bank of England, and the U.S. Federal Reserve began lowering policy rates. Global stocks posted strong returns. Several markets saw double-digit returns. Stocks in Taiwan, India, and China, which accounted for about three-quarters of the benchmark’s market value as of October 31, drove performance. By sector, technology and financial companies contributed the most. The Fund underperformed for two reasons. First, the Fund had to set aside assets to satisfy capital gains taxes in certain markets. Second, the Fund uses fair-value pricing, which primarily adjusts for fluctuations in the market value of securities on exchanges that close before the Fund's pricing time and affects how net asset value is calculated. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. Cumulative Performance: October 31, 2014, Through October 31, 2024 Initial Investment of $ 100,000,000 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Institutional Plus Shares 25.46% 4.97% 3.67% Spliced Emerging Markets Index 27.08% 5.34% 3.85% FTSE Global All Cap ex US Index 24.45% 6.12% 5.13% |
| No Deduction of Taxes [Text Block] | The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. |
| Net Assets | $ 112,970,000,000 |
| Holdings Count | Holding | 5,936 |
| Advisory Fees Paid, Amount | $ 4,101,000 |
| Investment Company Portfolio Turnover | 8% |
| Additional Fund Statistics [Text Block] | Fund Statistics Fund Net Assets $ Number of Portfolio Holdings 5,936 Portfolio Turnover Rate 8 % Total Investment Advisory Fees $ |
| Holdings [Text Block] | This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities. Portfolio Composition % of Net Assets Africa 3.5 % Asia 87.6 % Europe 1.1 % North America 2.0 % South America 5.1 % Other Assets and Liabilities—Net 0.7 % |
| Material Fund Change [Text Block] | How has the Fund changed? The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. The Fund added nondiversification risk and sector risk as a principal risks. This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Material Fund Change Strategies [Text Block] | The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. |
| Material Fund Change Risks Change [Text Block] | The Fund added nondiversification risk and sector risk as a principal risks. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Updated Prospectus Phone Number | 877-662-7447 |
| 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 annual shareholder report contains important information about Vanguard Emerging Markets Stock Index Fund (the "Fund") for the period of November 1, 2023 |
| Shareholder Report Annual or Semi-Annual | 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 year? (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 $ 0.14 % |
| Expenses Paid, Amount | $ 16 |
| Expense Ratio, Percent | 0.14% |
| Factors Affecting Performance [Text Block] | How did the Fund perform during the reporting period? For the 12 months ended October 31, 2024, the Fund underperformed its benchmark. Global economic growth appeared relatively stable at around 3% during the period, and U.S. recession fears faded. With inflation continuing to moderate across much of the world, major central banks including the European Central Bank, the Bank of England, and the U.S. Federal Reserve began lowering policy rates. Global stocks posted strong returns. Several markets saw double-digit returns. Stocks in Taiwan, India, and China, which accounted for about three-quarters of the benchmark’s market value as of October 31, drove performance. By sector, technology and financial companies contributed the most. The Fund underperformed for two reasons. First, the Fund had to set aside assets to satisfy capital gains taxes in certain markets. Second, the Fund uses fair-value pricing, which primarily adjusts for fluctuations in the market value of securities on exchanges that close before the Fund's pricing time and affects how net asset value is calculated. |
| Performance Past Does Not Indicate Future [Text] | Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. |
| Line Graph [Table Text Block] | How did the Fund perform over the past 10 years? Keep in mind that the Fund's past performance does not indicate how the Fund will perform in the future. Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. Cumulative Performance: October 31, 2014, Through October 31, 2024 Initial Investment of $ 10,000 |
| Average Annual Return [Table Text Block] | Average Annual Total Returns 1 Year 5 Years 10 Years Admiral Shares 25.35% 4.91% 3.60% Spliced Emerging Markets Index 27.08% 5.34% 3.85% FTSE Global All Cap ex US Index 24.45% 6.12% 5.13% |
| No Deduction of Taxes [Text Block] | The graph and returns shown do not reflect taxes that a shareholder would pay on fund distributions or on the sale of fund shares. |
| Updated Performance Information Location [Text Block] | Updated performance information is available on our website at vanguard.com/performance or by calling Vanguard toll-free at 800-662-7447. |
| Net Assets | $ 112,970,000,000 |
| Holdings Count | Holding | 5,936 |
| Advisory Fees Paid, Amount | $ 4,101,000 |
| Investment Company Portfolio Turnover | 8% |
| Additional Fund Statistics [Text Block] | Fund Statistics Fund Net Assets $ Number of Portfolio Holdings 5,936 Portfolio Turnover Rate 8 % Total Investment Advisory Fees $ |
| Holdings [Text Block] | This table reflects the Fund’s investments, including short-term investments, derivatives and other assets and liabilities. Portfolio Composition % of Net Assets Africa 3.5 % Asia 87.6 % Europe 1.1 % North America 2.0 % South America 5.1 % Other Assets and Liabilities—Net 0.7 % |
| Material Fund Change [Text Block] | How has the Fund changed? The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. The Fund added nondiversification risk and sector risk as a principal risks. This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Material Fund Change Strategies [Text Block] | The Fund's principal investment strategy was modified to add that the Fund may become nondiversified under the Investment Company Act of 1940 solely as a result of an index rebalance or market movement. |
| Material Fund Change Risks Change [Text Block] | The Fund added nondiversification risk and sector risk as a principal risks. |
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since October 31, 2023. For more complete information, you may review the Fund’s next prospectus, which we expect to be available by February 28, 2025, at https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature or upon request at 877-662-7447. |
| Updated Prospectus Phone Number | 877-662-7447 |
| Updated Prospectus Web Address | https://personal1.vanguard.com/ngf-next-gen-form-webapp/fund-literature |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | 60 Months Ended | 120 Months Ended | ||||||||||
| Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014 | |
| C000015901 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Institutional Shares | ||||||||||||
| Account Value | $ 7,152,266 | $ 7,152,266 | $ 7,152,266 | $ 5,702,378 | $ 5,139,109 | $ 7,108,369 | $ 6,052,235 | $ 5,616,510 | $ 4,931,860 | $ 5,643,019 | $ 4,661,274 | $ 4,221,279 | $ 5,000,000 |
| Average Annual Return, Percent | 25.43% | 4.95% | 3.64% | ||||||||||
| C000015900 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Investor Shares | ||||||||||||
| Account Value | $ 14,028 | $ 14,028 | $ 14,028 | 11,206 | 10,121 | 14,024 | 11,963 | 11,123 | 9,786 | 11,214 | 9,286 | 8,426 | 10,000 |
| Average Annual Return, Percent | 25.18% | 4.75% | 3.44% | ||||||||||
| C000015902 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | FTSE Emerging Markets ETF Shares Net Asset Value | ||||||||||||
| Account Value | $ 14,316 | $ 14,316 | $ 14,316 | 11,411 | 10,285 | 14,221 | 12,102 | 11,230 | 9,855 | 11,281 | 9,325 | 8,441 | 10,000 |
| Average Annual Return, Percent | 25.46% | 4.98% | 3.65% | ||||||||||
| C000015902 [Member] | Without Sales Load [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | FTSE Emerging Markets ETF Shares Market Price | ||||||||||||
| Average Annual Return, Percent | 26.41% | 5.13% | 3.71% | ||||||||||
| C000096106 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Institutional Plus Shares | ||||||||||||
| Account Value | $ 143,352,207 | $ 143,352,207 | $ 143,352,207 | 114,262,800 | 102,980,901 | 142,428,757 | 121,226,134 | 112,473,221 | 98,725,529 | 112,930,992 | 93,299,439 | 84,448,288 | 100,000,000 |
| Average Annual Return, Percent | 25.46% | 4.97% | 3.67% | ||||||||||
| C000035633 [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Admiral Shares | ||||||||||||
| Account Value | $ 14,249 | $ 14,249 | $ 14,249 | 11,367 | 10,248 | 14,185 | 12,079 | 11,213 | 9,850 | 11,275 | 9,319 | 8,440 | 10,000 |
| Average Annual Return, Percent | 25.35% | 4.91% | 3.60% | ||||||||||
| FTSE Global All Cap ex US Index [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | FTSE Global All Cap ex US Index | ||||||||||||
| Account Value | $ 16,492 | $ 16,492 | $ 16,492 | 13,252 | 11,840 | 15,713 | 11,999 | 12,256 | 11,023 | 12,020 | 9,731 | 9,642 | 10,000 |
| Average Annual Return, Percent | 24.45% | 6.12% | 5.13% | ||||||||||
| Spliced Emerging Markets Index [Member] | |||||||||||||
| Account Value [Line Items] | |||||||||||||
| Line Graph and Table Measure Name | Spliced Emerging Markets Index | ||||||||||||
| Account Value | $ 14,585 | $ 14,585 | $ 14,585 | $ 11,478 | $ 10,332 | $ 14,325 | $ 12,091 | $ 11,245 | $ 9,843 | $ 11,270 | $ 9,336 | $ 8,480 | $ 10,000 |
| Average Annual Return, Percent | 27.08% | 5.34% | 3.85% |
| Shareholder Report, Holdings (Details) | Oct. 31, 2024 |
| C000015901 [Member] | North America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000015901 [Member] | Asia [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 87.60% |
| C000015901 [Member] | Europe [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000015901 [Member] | Africa [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000015901 [Member] | South America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000015901 [Member] | Other Assets and Liabilities Net [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000015900 [Member] | North America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000015900 [Member] | Asia [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 87.60% |
| C000015900 [Member] | Europe [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000015900 [Member] | Africa [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000015900 [Member] | South America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000015900 [Member] | Other Assets and Liabilities Net [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000015902 [Member] | North America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000015902 [Member] | Asia [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 87.60% |
| C000015902 [Member] | Europe [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000015902 [Member] | Africa [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000015902 [Member] | South America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000015902 [Member] | Other Assets and Liabilities Net [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000096106 [Member] | North America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000096106 [Member] | Asia [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 87.60% |
| C000096106 [Member] | Europe [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000096106 [Member] | Africa [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000096106 [Member] | South America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000096106 [Member] | Other Assets and Liabilities Net [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
| C000035633 [Member] | North America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| C000035633 [Member] | Asia [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 87.60% |
| C000035633 [Member] | Europe [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.10% |
| C000035633 [Member] | Africa [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| C000035633 [Member] | South America [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| C000035633 [Member] | Other Assets and Liabilities Net [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.70% |
