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John Hancock Multifactor Developed International ETF Annual Total Returns
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
John Hancock Multifactor Developed International ETF | N/A                
Prospectus [Line Items]                
Annual Return [Percent] 2.55% 19.11% (13.86%) 11.64% 6.61% 20.27% (13.92%) 25.13%