S000048336 [Member] 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 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Bridge Builder Small/Mid Cap Growth Fund | Bridge Builder Small/Mid Cap Growth Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 8.31% | 14.48% | 20.97% | (29.84%) | 16.37% | 34.42% | 29.03% | (2.10%) | 21.45% | 11.47% |