John Hancock Global Climate Action Fund Average Annual Total Returns - Class NAV [Member] |
12 Months Ended | 60 Months Ended | 82 Months Ended | 120 Months Ended | ||
|---|---|---|---|---|---|---|
Mar. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| MSCI World Index (reflects no deduction for fees, expenses, or taxes, except foreign withholding taxes on dividends)[Member] | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 18.67% | 18.65% | 11.17% | 10.16% | 9.95% | |
| Class NAV | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 16.33% | 16.67% | ||||
| Performance Inception Date | Dec. 19, 2023 | |||||
| Class NAV | After Taxes on Distributions | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 13.39% | 13.81% | ||||
| Class NAV | After Taxes on Distributions and Sales | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 9.68% | 11.52% | ||||