Regulatory Capital - Risk-Based Capital Metrics (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Basel III Standardized \| JPMorgan Chase Bank, N.A.
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 282,306	$ 275,732
Tier 1 capital	282,311	275,737
Total capital	303,779	296,041
Risk-weighted assets	$ 1,812,986	$ 1,718,777
CET1 capital ratio	15.60%	16.00%
Tier 1 capital ratio	0.156	0.160
Total capital ratio	0.168	0.172
Basel III Advanced \| JPMorgan Chase Bank, N.A.
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 282,306	$ 275,732
Tier 1 capital	282,311	275,737
Total capital	289,365	282,328
Risk-weighted assets	$ 1,694,749	$ 1,594,072
CET1 capital ratio	16.70%	17.30%
Tier 1 capital ratio	0.167	0.173
Total capital ratio	0.171	0.177
JPMorgan Chase & Co. \| Basel III Standardized
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 283,854	$ 275,513
Tier 1 capital	303,189	294,881
Total capital	335,307	325,589
Risk-weighted assets	$ 1,882,718	$ 1,757,460
CET1 capital ratio	15.10%	15.70%
Tier 1 capital ratio	0.161	0.168
Total capital ratio	0.178	0.185
JPMorgan Chase & Co. \| Basel III Advanced
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 283,854	$ 275,513
Tier 1 capital	303,189	294,881
Total capital	320,809	311,898
Risk-weighted assets	$ 1,873,142	$ 1,740,429
CET1 capital ratio	15.20%	15.80%
Tier 1 capital ratio	0.162	0.169
Total capital ratio	0.171	0.179

Common Equity Tier 1 Capital as defined by the regulators.

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Common Equity Tier 1 Capital divided by risk weighted assets as defined by regulations.

+ References

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- Definition

Amount of total capital as defined by regulatory framework.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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- Definition

Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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Amount of risk-weighted assets as defined by regulatory framework.

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- Definition

Amount of Tier 1 risk-based capital as defined by regulatory framework.

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Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.

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