John Hancock Short Duration Bond Fund Average Annual Total Returns - John Hancock Bond Trust Class NAV [Member] |
12 Months Ended | 60 Months Ended | 66 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|
May 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 1.25% | (0.33%) | 0.19% | 1.35% | |
| Bloomberg U.S. Aggregate 1–3 Year Index (reflects no deduction for fees, expenses, or taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 4.39% | 1.53% | 1.65% | ||
| Class NAV | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 5.58% | 2.62% | 2.66% | ||
| Performance Inception Date | Jul. 16, 2019 | ||||
| Class NAV | After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.41% | 1.00% | 1.05% | ||
| Class NAV | After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 3.27% | 1.30% | 1.34% |