Noninterest revenue (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Components of investment banking fees [Abstract]
Underwriting	$ 1,112	$ 1,124	$ 3,729	$ 3,513
Advisory	492	414	1,502	1,196
Total investment banking fees	1,604	1,538	5,231	4,709
Principal transactions revenue
Trading revenue	2,368	2,641	8,665	8,218
Private equity gains	(1)	325	191	978
Principal transactions	2,367	2,966	8,856	9,196
Asset management:
Investment management fees	2,327	2,311	7,017	6,667
All other asset management fees	92	120	290	374
Asset Management Fees	2,419	2,431	7,307	7,041
Total administration fees	486	536	1,520	1,627
Commission and other fees:
Brokerage commissions	575	567	1,761	1,766
All other commissions and fees	365	444	1,079	1,387
Total commissions and fees	940	1,011	2,840	3,153
Total asset management, administration and commissions	3,845	3,978	11,667	11,821
Operating lease income	536	433	1,509	1,252
Interest rate
Principal transactions revenue
Trading revenue	530	655	1,836	1,636
Credit
Principal transactions revenue
Trading revenue	438	556	1,477	1,685
Foreign exchange
Principal transactions revenue
Trading revenue	607	381	2,014	1,249
Equity
Principal transactions revenue
Trading revenue	637	638	2,593	2,202
Commodity
Principal transactions revenue
Trading revenue	156	411	745	1,446
Equity securities
Components of investment banking fees [Abstract]
Underwriting	257	414	1,108	1,244
Debt securities
Components of investment banking fees [Abstract]
Underwriting	$ 855	$ 710	$ 2,621	$ 2,269

All other asset management fees.

No definition available.

Name:	jpm_AllOtherAssetManagementFees
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Combination of: 1) Revenue recognized in the period for (A) performance (incentive) fees based on the investment results achieved for management of certain institutional accounts and hedge funds, (B) schedule-based fees earned for management of mutual funds and closed-end funds, based either on average daily net assets or on a combination of the average daily net assets and gross income, and (C) other investment management and advisory fees. 2) Acting as an agent, a broker-dealer may buy and sell securities on behalf of its customers. In return for such services, the broker-dealer charges a commission. Each time a customer enters into a buy or sell transaction, a commission is earned by the broker-dealer for its selling and administrative efforts. For securities purchased, the commission is recorded as a receivable from customers; for securities sold, it is recorded as reductions in the payable to customers. Commissions earned are usually related to the broker-dealer's customers' trading volume and the dollar amounts of the trades. In general, commissions are for smaller trades of exchange-listed stocks and bonds made by retail customers. 3)Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (A) acting as an agent for fiduciary placement and loans and (B) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department. 4) Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products. 5) Revenues from providing transfer agent services to corporations. Such services include maintaining records of investors and account balances and transactions, canceling and issuing certificates, processing investor mailings and dealing with any associated problems (i.e. lost or stolen certificates). 6) Service revenue earned by a depository institution that holds the account balances of other financial institutions and provides services thereto. Such services include check collection and item processing. 7) Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy, such as ADR fees, fund accounting fees, etc.

+ References

No definition available.