Vanguard FTSE All-World ex-US Small-Cap Index Fund Average Annual Total Returns - Admiral Prospectus [Member] |
12 Months Ended | 60 Months Ended | 83 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|
Oct. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| FTSE Global Small Cap ex US Index (reflects no deduction for fees or expenses)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 29.45% | 6.48% | 8.27% | ||
| FTSE Global All Cap ex US Index (reflects no deduction for fees or expenses)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 31.95% | 8.04% | 9.47% | 8.56% | |
| Admiral Shares | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 29.87% | 6.35% | 8.25% | ||
| Performance Inception Date | Feb. 07, 2019 | ||||
| Admiral Shares | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 28.71% | 5.57% | 7.46% | ||
| Admiral Shares | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 18.24% | 4.81% | 6.40% |