John Hancock Diversified Real Assets Fund Expense Example - Class NAV [Member] - John Hancock Diversified Real Assets Fund - Class NAV	Mar. 31, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 88
Expense Example, with Redemption, 3 Years	287
Expense Example, with Redemption, 5 Years	503
Expense Example, with Redemption, 10 Years	$ 1,126

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Form N-1A
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Form N-1A
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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