Litigation (Details)	1 Months Ended			3 Months Ended		6 Months Ended		36 Months Ended	55 Months Ended
	Aug. 31, 2021 USD ($)	May 31, 2021 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2012 fund	Jun. 30, 2024 USD ($)
Loss Contingencies [Line Items]
Legal expense				$ 317,000,000	$ 420,000,000	$ 245,000,000	$ 596,000,000
Threatened or Pending Litigation | Minimum
Loss Contingencies [Line Items]
Loss contingency range of possible loss				0		0			$ 0
Threatened or Pending Litigation | Maximum
Loss Contingencies [Line Items]
Loss contingency range of possible loss				$ 1,700,000,000		$ 1,700,000,000			1,700,000,000
1MDB Litigation, 2009 | J.P. Morgan (Suisse) SA
Loss Contingencies [Line Items]
Amount of claim		$ 300,000,000
1MDB Litigation, 2010 | J.P. Morgan (Suisse) SA
Loss Contingencies [Line Items]
Amount of claim		$ 500,000,000
Amrapali Litigation | JPMorgan India Private Limited
Loss Contingencies [Line Items]
Amount of claim	$ 31,500,000
Number of offshore funds formerly managed by JPMorgan Chase entities | fund								2
Foreign Exchange Investigations and Litigation
Loss Contingencies [Line Items]
Loss contingency disqualification period						10 years
Interchange Litigation | The Defendants
Loss Contingencies [Line Items]
Settlement amount			$ 6,200,000,000
Payments for legal settlement									$ 700,000,000
Settlements with merchants who opted out, percentage of combined card sales volume (over)				70.00%		70.00%			70.00%
Trading Venues Investigations
Loss Contingencies [Line Items]
Payments for legal settlement						$ 450,000,000