Business Changes	3 Months Ended
Mar. 31, 2016
Business Changes [Abstract]
Business Changes	Business changes There were no material business changes during the first quarter of 2016.

Description of a business combination or disposition (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized or derecognized assets and liabilities. This element may be used as a single block of text to encapsulate the entire disclosure (including data and tables) regarding business combinations (including leverage buyout transactions (as applicable)) and dispositions, and other significant business events.

No definition available.

Name:	jpm_BusinessCombinationandOtherBusinessEventsDisclosuresTextBlock
Namespace Prefix:	jpm_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration