S000040853 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg U.S. Aggregate Bond Index (reflects no deductions for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.30% | (0.36%) | 2.01% |
| Bridge Builder Core Bond Fund | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.53% | 0.15% | 2.55% |
| Bridge Builder Core Bond Fund | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.64% | (1.28%) | 1.12% |
| Bridge Builder Core Bond Fund | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.65% | (0.49%) | 1.37% |