John Hancock Short Duration Bond Fund Average Annual Total Returns - John Hancock Bond Trust Class NAV [Member] |
12 Months Ended | 60 Months Ended | 78 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|
May 31, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 7.30% | (0.36%) | 1.26% | 2.01% | |
| Bloomberg U.S. Aggregate 1–3 Year Index (reflects no deduction for fees, expenses, or taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 5.39% | 1.98% | 2.22% | ||
| Class NAV | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 6.11% | 2.98% | 3.19% | ||
| Performance Inception Date | Jul. 16, 2019 | ||||
| Class NAV | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.94% | 1.19% | 1.49% | ||
| Class NAV | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.85% | 1.53% | 1.69% |