S000050632 [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 Municipal Bond Fund | Bridge Builder Municipal Bond Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 5.09% | 2.08% | 6.35% | (7.71%) | 2.03% | 4.17% | 7.12% | 1.47% | 4.75% | 0.02% |