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 |
|
| Retail Prospectus [Member] | Vanguard Tax-Exempt Bond Index Fund | Admiral Shares | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 3.66% | 1.36% | 6.15% | (8.22%) | 1.43% | 4.98% | 7.45% | 0.94% |