JPMorgan SmartRetirement Blend 2045 Fund Expense Example - I Shares [Member] - JPMorgan SmartRetirement Blend 2045 Fund - Class I	Jun. 30, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 43
Expense Example, with Redemption, 3 Years	176
Expense Example, with Redemption, 5 Years	321
Expense Example, with Redemption, 10 Years	$ 744

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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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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