Vanguard Total International Bond II Index Fund Average Annual Total Returns - Retail Prospectus [Member] |
12 Months Ended | 58 Months Ended | |
|---|---|---|---|
Oct. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg Global Aggregate ex-USD Float Adjusted RIC Capped Index (USD Hedged) (reflects no deduction for fees, expenses, or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.03% | 0.36% | |
| Bloomberg Global Aggregate Index ex USD (reflects no deduction for fees, expenses, or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 8.85% | (3.11%) | |
| Investor Shares | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 2.95% | 0.20% | |
| Performance Inception Date | Feb. 26, 2021 | ||
| Investor Shares | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.23% | (0.97%) | |
| Investor Shares | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.75% | (0.34%) |