Vanguard Short-Term 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 Short-Term Bond Index Fund | ETF Shares | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 6.05% | 3.75% | 4.91% | (5.55%) | (1.00%) | 4.67% | 4.92% | 1.34% |