Derivatives, Gross Fair Values of Derivative Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivative Assets
Derivative Assets	$ 58,611	$ 45,876
Counterparty netting, assets	(32,575)	(27,172)
Cash collateral netting, assets	(6,368)	(4,258)
Total derivatives subject to enforceable master netting arrangements, net, assets	19,668	14,446
Derivatives not subject to enforceable master netting arrangements, assets	7,697	7,032
Total derivatives recognized in consolidated balance sheet, net, assets	27,365	21,478
Non-cash collateral not offset, assets	(1,949)	(1,432)
Total Derivatives, net, assets	25,416	20,046
Derivative Liabilities
Derivative Liabilities	50,625	41,238
Counterparty netting, liabilities	(32,479)	(27,046)
Cash collateral netting, liabilities	(8,226)	(9,486)
Total derivatives subject to enforceable master netting arrangements, net, liabilities	9,920	4,706
Derivatives not subject to enforceable master netting arrangements , liabilities	5,579	4,718
Total derivatives recognized in consolidated balance sheet, net, liabilities	15,499	9,424
Non-cash collateral not offset, Liabilities	(1,121)	(412)
Total Derivatives, net, liabilities	14,378	9,012
Derivatives (Textual) [Abstract]
Valuation adjustments for derivative assets	341	284
Valuation adjustments for derivative liabilities	244	158
Interest rate contracts [Member]
Derivative Assets
Derivative Assets	27,802	20,287
Derivative Liabilities
Derivative Liabilities	25,729	16,874
Interest rate contracts [Member] | OTC [Member]
Derivative Assets
Derivative Assets	26,017	20,067
Derivative Liabilities
Derivative Liabilities	23,939	16,654
Interest rate contracts [Member] | OTC cleared [Member]
Derivative Assets
Derivative Assets	1,544	168
Derivative Liabilities
Derivative Liabilities	1,659	192
Interest rate contracts [Member] | Exchange traded [Member]
Derivative Assets
Derivative Assets	241	52
Derivative Liabilities
Derivative Liabilities	131	28
Commodity contracts [Member]
Derivative Assets
Derivative Assets	13,121	5,597
Derivative Liabilities
Derivative Liabilities	5,536	2,296
Commodity contracts [Member] | OTC [Member]
Derivative Assets
Derivative Assets	11,968	5,040
Derivative Liabilities
Derivative Liabilities	2,859	1,249
Commodity contracts [Member] | Exchange traded [Member]
Derivative Assets
Derivative Assets	1,153	557
Derivative Liabilities
Derivative Liabilities	2,677	1,047
Equity contracts [Member]
Derivative Assets
Derivative Assets	9,039	13,625
Derivative Liabilities
Derivative Liabilities	10,916	15,816
Equity contracts [Member] | OTC [Member]
Derivative Assets
Derivative Assets	4,478	6,132
Derivative Liabilities
Derivative Liabilities	8,045	9,730
Equity contracts [Member] | Exchange traded [Member]
Derivative Assets
Derivative Assets	4,561	7,493
Derivative Liabilities
Derivative Liabilities	2,871	6,086
Foreign exchange contracts [Member]
Derivative Assets
Derivative Assets	8,617	6,335
Derivative Liabilities
Derivative Liabilities	8,417	6,221
Foreign exchange contracts [Member] | OTC [Member]
Derivative Assets
Derivative Assets	8,617	6,335
Derivative Liabilities
Derivative Liabilities	8,417	6,221
Credit contracts [Member]
Derivative Assets
Derivative Assets	32	32
Derivative Liabilities
Derivative Liabilities	27	31
Credit contracts [Member] | OTC [Member]
Derivative Assets
Derivative Assets	32	32
Derivative Liabilities
Derivative Liabilities	$ 27	$ 31