Vanguard Tax-Exempt Bond Index Fund Annual Total Returns |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| ETF Prospectus [Member] | Vanguard Tax-Exempt Bond Index Fund | ETF Shares | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 3.72% | 1.37% | 6.20% | (8.18%) | 1.45% | 5.01% | 7.50% | 0.94% |