Parent Company - Balance Sheets (Details) - USD ($) $ in Millions		Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Assets
Cash and due from banks		$ 24,874		$ 21,704
Trading assets	[1]	503,126		369,687
Other assets	[1]	152,853		130,395
Total assets		3,386,071	[2]	2,687,379	[2]	$ 2,622,532
Liabilities and stockholders’ equity
Total liabilities	[2]	3,106,717		2,426,049
Total stockholders’ equity		279,354		261,330		$ 256,515
Total liabilities and stockholders’ equity		3,386,071		2,687,379
JPMorgan Chase & Co.
Assets
Cash and due from banks		54		32
Deposits with banking subsidiaries		6,811		5,309
Trading assets		1,775		3,011
Other assets		10,058		10,699
Total assets		528,424		493,744
Liabilities and stockholders’ equity
Borrowings from, and payables to, subsidiaries and affiliates		25,150		23,410
Short-term borrowings		924		2,616
Other liabilities		9,612		9,288
Long-term debt		213,384		197,100
Total liabilities		249,070		232,414
Total stockholders’ equity		279,354		261,330
Total liabilities and stockholders’ equity		528,424		493,744
Bank and bank holding company | JPMorgan Chase & Co.
Assets
Advances to, and receivables from, subsidiaries		27		2,358
Investments (at equity) in subsidiaries and affiliates		508,602		471,207
Non-bank | JPMorgan Chase & Co.
Assets
Advances to, and receivables from, subsidiaries		86		84
Investments (at equity) in subsidiaries and affiliates		$ 1,011		$ 1,044

[1] In the third quarter of 2020, the Firm reclassified certain fair value option elected lending-related positions from trading assets to loans and other assets. Prior-period amounts have been revised to conform with the current presentation.

[2] The following table presents information on assets and liabilities related to VIEs that are consolidated by the Firm at December 31, 2020 and 2019. The assets of the consolidated VIEs are used to settle the liabilities of those entities. The holders of the beneficial interests do not have recourse to the general credit of JPMorgan Chase. The assets and liabilities in the table below include third-party assets and liabilities of consolidated VIEs and exclude intercompany balances that eliminate in consolidation. Refer to Note 14 for a further discussion. December 31, (in millions)20202019AssetsTrading assets$1,934 $2,633 Loans37,619 42,931 All other assets681 881 Total assets$40,234 $46,445 LiabilitiesBeneficial interests issued by consolidated VIEs$17,578 $17,841 All other liabilities233 447 Total liabilities$17,811 $18,288