John Hancock High Yield ETF Investment Objectives and Goals - John Hancock High Yield ETF	Apr. 30, 2025
Prospectus [Line Items]
Risk/Return [Heading]	<span style="color:#000000;font-family:Arial Narrow;font-size:24pt;">John Hancock High Yield ETF</span>
Objective [Heading]	<span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-weight:bold;">Investment objective</span>
Objective, Primary [Text Block]	To seek to maximize current income.
Objective, Secondary [Text Block]	Capital appreciation is a secondary goal.

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