Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
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- Definition

This element represents the payables portion of types of derivative financial instruments qualifying as guarantees which are financial instruments or other contractual arrangements with all three of the following characteristics: (a) it has (1) one or more underlyings and (2) one or more notional amounts or payment provisions or both. Those terms determine the amount of the settlement or settlements, and, in some cases, whether or not a settlement is required; (b) it requires no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; and (c) its terms require or permit net settlement, it can readily be settled net by a means outside the contract, or it provides for delivery of an asset that puts the recipient in a position not substantially different from net settlement. Notwithstanding the above characteristics, loan commitments that relate to the origination of mortgage loans that will be held for sale shall be accounted for as derivative instruments by the issuer of the loan commitment (that is, the potential lender).

+ References

No definition available.

+ Details

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Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the receivables portion of types of derivative financial instruments qualifying as guarantees which are financial instruments or other contractual arrangements with all three of the following characteristics: (a) it has (1) one or more underlyings and (2) one or more notional amounts or payment provisions or both. Those terms determine the amount of the settlement or settlements, and, in some cases, whether or not a settlement is required; (b) it requires no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; and (c) its terms require or permit net settlement, it can readily be settled net by a means outside the contract, or it provides for delivery of an asset that puts the recipient in a position not substantially different from net settlement. Notwithstanding the above characteristics, loan commitments that relate to the origination of mortgage loans that will be held for sale shall be accounted for as derivative instruments by the issuer of the loan commitment (that is, the potential lender).

+ References

No definition available.

+ Details

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Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
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- Definition

Derivatives maximum exposure to loss.

+ References

No definition available.

+ Details

Name:	jpm_DerivativesMaximumExposureToLoss
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Derivatives Qualifying as Guarantees [Abstract]

+ References

No definition available.

+ Details

Name:	jpm_DerivativesQualifyingAsGuaranteesAbstract
Namespace Prefix:	jpm_
Data Type:	xbrli:stringItemType
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- Definition

The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), which represents the maximum possible credit risk should the counterparty draw upon the commitment or the entity be required to fulfill its obligation under the guarantee, and the counterparty subsequently fail to perform according to the terms of the contract.

+ References

No definition available.

+ Details

Name:	jpm_OffBalanceSheetLendingRelatedFinancialCommitmentsContractualAmount
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), which represents the allowance for lending-related commitments and the guarantee liability.

+ References

No definition available.

+ Details

Name:	jpm_OffBalanceSheetLendingRelatedFinancialInstrumentsCarryingValue
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The contractual amount of others letters of credit supported by collateral.

+ References

No definition available.

+ Details

Name:	jpm_OtherLettersofCreditSupportedbyCollateral
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Other Off-Balance Sheet Arrangements [Abstract]

+ References

No definition available.

+ Details

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Namespace Prefix:	jpm_
Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Standby letters of credit and other financial guarantees and other letters of credit.

+ References

No definition available.

+ Details

Name:	jpm_StandbyLettersOfCreditAndOtherFinancialGuaranteesAndOtherLettersOfCreditAbstract
Namespace Prefix:	jpm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Standby letters of credit and other financial guarantees which are rated as investment-grade per company defined internal payment/performance risk groupings used for managing risk.

+ References

No definition available.

+ Details

Name:	jpm_StandbyLettersOfCreditAndOtherFinancialGuaranteesInternalCreditRatingInvestmentGrade
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Standby letters of credit and other financial guarantees which are rated as noninvestment-grade per company defined internal payment/performance risk groupings used for managing risk.

+ References

No definition available.

+ Details

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Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The contractual amount of standby letters of credit supported by collateral.

+ References

No definition available.

+ Details

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Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: 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

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

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

- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 09
-Article 12

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Off-balance Sheet Lending-related Financial Instruments, Guarantees and Other Commitments - Standby Letters of Credit and Other Financial Guarantees (Details) - USD ($) $ in Millions	Sep. 30, 2015	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Standby letters of credit and other financial guarantees and other letters of credit [Abstract]
Total lending-related commitments		$ 960,434	$ 940,395	$ 949,166
Off-balance sheet lending-related financial commitments, Carrying value		1,471	1,213
Derivatives qualifying as guarantees
Notional amount on stable value contracts		53,090,000	50,659,000
JPMorgan Chase Financial Company LLC
Other off-balance sheet arrangements
Direct-owned finance subsidiary ownership	100.00%
Standby letters of credit and other financial guarantees
Standby letters of credit and other financial guarantees and other letters of credit [Abstract]
Investment-grade		30,383	31,751
Noninvestment-grade		7,557	7,382
Total lending-related commitments		37,940	39,133
Allowance for lending-related commitments		155	121
Off-balance sheet lending-related financial commitments, Carrying value		612	548
Commitments with collateral		18,874	18,825
Other letters of credit
Standby letters of credit and other financial guarantees and other letters of credit [Abstract]
Guarantee liability and corresponding asset		0	0
Investment-grade		2,640	3,290
Noninvestment-grade		685	651
Total lending-related commitments		3,325	3,941
Allowance for lending-related commitments		2	2
Off-balance sheet lending-related financial commitments, Carrying value		2	2
Commitments with collateral		975	996
Standby Letters of Credit [Member]
Standby letters of credit and other financial guarantees and other letters of credit [Abstract]
Guarantee liability and corresponding asset		457	427
Derivatives qualifying as guarantees
Standby letters of credit and other financial guarantees and other letters of credit [Abstract]
Guarantee liability and corresponding asset		198	222
Derivatives qualifying as guarantees
Total notional value of derivatives the Firm deems guarantees		53,156	53,784
Notional amount on stable value contracts		28,500	28,400
Maximum exposure to loss		3,000	3,000
Derivative qualifying as guarantees payables		212	236
Derivative qualifying as guarantees receivables		$ 14	$ 14