Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Period End Date	dei_DocumentPeriodEndDate	Jun. 30, 2023
Registrant Name	dei_EntityRegistrantName	JPMORGAN TRUST I
CIK	dei_EntityCentralIndexKey	0001217286
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 24, 2023
Effective Date	dei_DocumentEffectiveDate	Nov. 01, 2023
Prospectus Date	rr_ProspectusDate	Nov. 01, 2023
Entity Inv Company Type	dei_EntityInvCompanyType	N-1A
JPMorgan SmartRetirement Blend Income Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JIJSX
JPMorgan SmartRetirement Blend Income Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JIRBX
JPMorgan SmartRetirement Blend Income Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JITLX
JPMorgan SmartRetirement Blend Income Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JITKX
JPMorgan SmartRetirement Blend Income Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JIBBX
JPMorgan SmartRetirement Blend Income Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JIYBX
JPMorgan SmartRetirement Blend 2020 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JSSRX
JPMorgan SmartRetirement Blend 2020 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JIORX
JPMorgan SmartRetirement Blend 2020 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JSTKX
JPMorgan SmartRetirement Blend 2020 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JSTLX
JPMorgan SmartRetirement Blend 2020 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBSRX
JPMorgan SmartRetirement Blend 2020 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JSYRX
JPMorgan SmartRetirement Blend 2025 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBSSX
JPMorgan SmartRetirement Blend 2025 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBRSX
JPMorgan SmartRetirement Blend 2025 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBTUX
JPMorgan SmartRetirement Blend 2025 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBTBX
JPMorgan SmartRetirement Blend 2025 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBBSX
JPMorgan SmartRetirement Blend 2025 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JBYSX
JPMorgan SmartRetirement Blend 2030 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JRBEX
JPMorgan SmartRetirement Blend 2030 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JRBRX
JPMorgan SmartRetirement Blend 2030 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JUTPX
JPMorgan SmartRetirement Blend 2030 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JUTUX
JPMorgan SmartRetirement Blend 2030 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JRBBX
JPMorgan SmartRetirement Blend 2030 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JRBYX
JPMorgan SmartRetirement Blend 2035 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPSRX
JPMorgan SmartRetirement Blend 2035 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPRRX
JPMorgan SmartRetirement Blend 2035 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPTLX
JPMorgan SmartRetirement Blend 2035 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPTKX
JPMorgan SmartRetirement Blend 2035 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPBRX
JPMorgan SmartRetirement Blend 2035 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPYRX
JPMorgan SmartRetirement Blend 2040 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JOBEX
JPMorgan SmartRetirement Blend 2040 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JOBRX
JPMorgan SmartRetirement Blend 2040 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNTEX
JPMorgan SmartRetirement Blend 2040 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNTNX
JPMorgan SmartRetirement Blend 2040 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JOBBX
JPMorgan SmartRetirement Blend 2040 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JOBYX
JPMorgan SmartRetirement Blend 2045 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JMSSX
JPMorgan SmartRetirement Blend 2045 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNARX
JPMorgan SmartRetirement Blend 2045 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNTOX
JPMorgan SmartRetirement Blend 2045 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNTLX
JPMorgan SmartRetirement Blend 2045 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JMBRX
JPMorgan SmartRetirement Blend 2045 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JMYAX
JPMorgan SmartRetirement Blend 2050 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNEAX
JPMorgan SmartRetirement Blend 2050 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNNRX
JPMorgan SmartRetirement Blend 2050 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNTKX
JPMorgan SmartRetirement Blend 2050 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNTPX
JPMorgan SmartRetirement Blend 2050 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNABX
JPMorgan SmartRetirement Blend 2050 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JNYAX
JPMorgan SmartRetirement Blend 2055 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JPTBX
JPMorgan SmartRetirement Blend 2055 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JTRBX
JPMorgan SmartRetirement Blend 2055 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JTTUX
JPMorgan SmartRetirement Blend 2055 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JTTLX
JPMorgan SmartRetirement Blend 2055 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JTBBX
JPMorgan SmartRetirement Blend 2055 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JTYBX
JPMorgan SmartRetirement Blend 2060 Fund \| Class I
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JACSX
JPMorgan SmartRetirement Blend 2060 Fund \| Class R2
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JATPX
JPMorgan SmartRetirement Blend 2060 Fund \| Class R3
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JATQX
JPMorgan SmartRetirement Blend 2060 Fund \| Class R4
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JATUX
JPMorgan SmartRetirement Blend 2060 Fund \| Class R5
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JAABX
JPMorgan SmartRetirement Blend 2060 Fund \| Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	JAAYX

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

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- Definition

The date the document was made available and submitted, in YYYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.

+ References

No definition available.

+ Details

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- Definition

The date when a document, upon receipt and acceptance, becomes officially effective, in YYYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.

+ References

No definition available.

+ Details

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- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

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- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

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- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2

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- Definition

One of: N-1A (Mutual Fund), N-1 (Open-End Separate Account with No Variable Annuities), N-2 (Closed-End Investment Company), N-3 (Separate Account Registered as Open-End Management Investment Company), N-4 (Variable Annuity UIT Separate Account), N-5 (Small Business Investment Company), N-6 (Variable Life UIT Separate Account), S-1 or S-3 (Face Amount Certificate Company), S-6 (UIT, Non-Insurance Product).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-T
-Number 232
-Section 313

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Period Type:	duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Exchange Act
-Number 240
-Section 12
-Subsection b-2

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- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

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- Definition

The date of the prospectus.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Form N-1A
-Section 1
-Subsection a
-Paragraph 3

+ Details

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Namespace Prefix:	rr_
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Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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