Interest Income and Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Interest income
Loans	$ 93,843	$ 92,353	$ 83,384
Taxable securities	26,903	21,947	17,390
Non-taxable securities	1,129	1,197	1,336
Total investment securities	28,032	23,144	18,726
Trading assets - debt instruments	24,895	20,327	15,950
Federal funds sold and securities purchased under resale agreements	16,706	18,299	15,079
Securities borrowed	9,027	9,208	7,983
Deposits with banks	13,099	22,297	21,797
All other interest-earning assets	7,739	8,305	7,669
Total interest income	193,341	193,933	170,588
Interest expense
Interest bearing deposits	45,112	49,559	40,016
Federal funds purchased and securities loaned or sold under repurchase agreements	22,411	19,149	13,259
Short-term borrowings	2,298	2,101	1,894
Trading liabilities – debt and all other interest-bearing liabilities	8,965	10,238	9,396
Long-term debt	17,894	18,920	15,803
Beneficial interest issued by consolidated VIEs	1,218	1,383	953
Total interest expense	97,898	101,350	81,321
Net interest income	95,443	92,583	89,267
Provision for credit losses	14,212	10,678	9,320
Net interest income after provision for credit losses	$ 81,231	$ 81,905	$ 79,947