Vanguard Mega Cap Value Index Fund Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| ETF Prospectus [Member] | Vanguard Mega Cap Value Index Fund | ETF Shares | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.85% | 9.16% | (1.23%) | 25.89% | 2.40% | 25.73% | (4.05%) | 16.79% | 16.62% | (0.18%) |