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When presenting a range of interest rates, the lowest stated contractual rate modified for the effects of hedge accounting, for funds borrowed under the debt agreement as of the balance sheet date, excluding debt accounted for at fair value.

No definition available.

Name:	jpm_DebtInstrumentInterestRatePercentageModifiedForEffectsOfHedgeAccountingExcludingDebtAccountedForAtFairValueMinimum
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Data Type:	num:percentItemType
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When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement maturing after year five following the date of the latest balance sheet presented in the financial statements.

No definition available.

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When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement maturing after year five following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	jpm_DebtInstrumentMaturitiesAfterYearFiveInterestRateStatedPercentageRateRangeMinimum
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When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	jpm_DebtInstrumentMaturitiesInNextTwelveMonthsInterestRateStatedPercentageRateRangeMaximum
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Data Type:	num:percentItemType
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When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	jpm_DebtInstrumentMaturitiesInNextTwelveMonthsInterestRateStatedPercentageRateRangeMinimum
Namespace Prefix:	jpm_
Data Type:	num:percentItemType
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When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement maturing in years one through five following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	jpm_DebtInstrumentMaturitiesInYearsOneThroughFiveInterestRateStatedPercentageRateRangeMaximum
Namespace Prefix:	jpm_
Data Type:	num:percentItemType
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When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement maturing in years one through five following the date of the latest balance sheet presented in the financial statements.

No definition available.

Name:	jpm_DebtInstrumentMaturitiesInYearsOneThroughFiveInterestRateStatedPercentageRateRangeMinimum
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Data Type:	num:percentItemType
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The weighted average contractual rate modified for the effects of hedge accounting, for funds borrowed under the debt agreement as of the balance sheet date.

No definition available.

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Data Type:	xbrli:pureItemType
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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding (at fair value) for debt by type or by instrument, but excluding Structured Notes.

No definition available.

Name:	jpm_DebtInstrumentWeightedAverageInterestRateStatedPercentageExcludingStructuredNotes
Namespace Prefix:	jpm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Collateral used to secure Long Term Debt.

No definition available.

Name:	jpm_LongTermDebtCollateral
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Amount of long-term debt maturing in years one through five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates.

No definition available.

Name:	jpm_LongTermDebtMaturingInYearsOneThroughFive
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Data Type:	xbrli:monetaryItemType
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Portion of long term debt guaranteed by the FDIC under the temporary liquidity guarantee program (TLG).

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	jpm_LongTermDebtSupplementalInformationAbstract
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Redeemable Long Term Debt.

No definition available.

Name:	jpm_RedeemableLongTermDebt
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Including current and noncurrent portions, aggregate carrying amount of zero-coupn long-term borrowings as of the balance sheet date. Which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

No definition available.

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Includes appregate principal amount of zero-coupon long-term borrowings at their maturities.

No definition available.

Name:	jpm_ZeroCouponNotesAggregatePrincipalAmountAtMaturity
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Data Type:	xbrli:monetaryItemType
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Obligation reflecting another party's right to economic interests in another entity or trust under a contractual right. For example, an investor may purchase a beneficial interest in a securitization transaction.

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a(3)

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph 2

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a)(3))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13(2))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 45

-Paragraph 13

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Name:	us-gaap_LongTermDebt
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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

No definition available.

Name:	us-gaap_LongTermDebtFairValue
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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 47

-Paragraph 10

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.