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John Hancock Corporate Bond ETF Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
John Hancock Corporate Bond ETF | None or SAME        
Prospectus [Line Items]        
Annual Return [Percent] 7.83% 3.17% 9.31% (16.31%)