DERIVATIVES - Derivative Mark-to-Market (MTM) Receivables/Payables (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Assets
Derivative receivables	$ 403,000	$ 444,987
Less: Netting agreements to assets	(312,754)	(346,545)
Less: Netting of cash collateral received	(18,645)	(23,136)
Total trading account derivatives, assets	71,601	75,306
Less: Cash collateral received	(723)	(1,455)
Less: Non-cash collateral received	(3,841)	(5,923)
Total net receivables	67,037	67,928
Liabilities
Derivative payables	397,015	436,493
Less: Netting agreements to liabilities	(312,754)	(346,545)
Less: Netting of cash collateral paid	(28,221)	(30,032)
Total derivative liabilities	56,040	59,916
Less: Cash collateral paid	(2,793)	(2,272)
Less: Non-cash collateral paid	(10,406)	(13,475)
Total net payables	42,841	44,169
Trading account assets
Liabilities
Does not meet applicable offsetting guidance, assets	14,000	14,000
Trading account assets | Over-the-counter
Liabilities
Less: Netting agreements to liabilities	(241,000)	(276,000)
Trading account assets | Cleared
Liabilities
Less: Netting agreements to liabilities	(48,000)	(49,000)
Trading account assets | Exchange traded
Liabilities
Less: Netting agreements to liabilities	(24,000)	(22,000)
Trading accounts liabilities
Liabilities
Does not meet applicable offsetting guidance, liabilities	9,000	11,000
Trading accounts liabilities | Over-the-counter
Assets
Less: Netting agreements to assets	(241,000)	(276,000)
Trading accounts liabilities | Cleared
Assets
Less: Netting agreements to assets	(48,000)	(49,000)
Trading accounts liabilities | Exchange traded
Assets
Less: Netting agreements to assets	(24,000)	(22,000)
Derivative instruments designated as ASC 815 hedges
Assets
Derivative receivables	2,161	2,888
Liabilities
Derivative payables	1,342	1,871
Derivative instruments designated as ASC 815 hedges | Interest rate contracts
Assets
Derivative receivables	540	597
Liabilities
Derivative payables	36	102
Derivative instruments designated as ASC 815 hedges | Interest rate contracts | Over-the-counter
Assets
Derivative receivables	414	468
Liabilities
Derivative payables	18	1
Derivative instruments designated as ASC 815 hedges | Interest rate contracts | Cleared
Assets
Derivative receivables	126	129
Liabilities
Derivative payables	18	101
Derivative instruments designated as ASC 815 hedges | Foreign exchange contracts
Assets
Derivative receivables	1,621	2,291
Liabilities
Derivative payables	1,306	1,769
Derivative instruments designated as ASC 815 hedges | Foreign exchange contracts | Over-the-counter
Assets
Derivative receivables	1,620	2,288
Liabilities
Derivative payables	1,306	1,766
Derivative instruments designated as ASC 815 hedges | Foreign exchange contracts | Cleared
Assets
Derivative receivables	1	3
Liabilities
Derivative payables	0	3
Derivatives instruments not designated as ASC 815 hedges
Assets
Derivative receivables	400,839	442,099
Liabilities
Derivative payables	395,673	434,622
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts
Assets
Derivative receivables	168,154	177,607
Liabilities
Derivative payables	164,175	172,518
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts | Over-the-counter
Assets
Derivative receivables	120,857	126,844
Liabilities
Derivative payables	114,712	119,854
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts | Cleared
Assets
Derivative receivables	47,014	50,515
Liabilities
Derivative payables	49,212	52,566
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts | Exchange traded
Assets
Derivative receivables	283	248
Liabilities
Derivative payables	251	98
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts
Assets
Derivative receivables	158,235	185,372
Liabilities
Derivative payables	151,519	184,226
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Over-the-counter
Assets
Derivative receivables	157,724	184,869
Liabilities
Derivative payables	150,913	183,578
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Cleared
Assets
Derivative receivables	511	502
Liabilities
Derivative payables	601	643
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Trading account assets | Exchange traded
Assets
Derivative receivables	0	1
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Trading accounts liabilities | Exchange traded
Liabilities
Derivative payables	5	5
Derivatives instruments not designated as ASC 815 hedges | Equity contracts
Assets
Derivative receivables	47,085	42,407
Liabilities
Derivative payables	51,581	43,783
Derivatives instruments not designated as ASC 815 hedges | Equity contracts | Over-the-counter
Assets
Derivative receivables	22,029	19,674
Liabilities
Derivative payables	27,163	21,871
Derivatives instruments not designated as ASC 815 hedges | Equity contracts | Cleared
Assets
Derivative receivables	36	1
Liabilities
Derivative payables	6	4
Derivatives instruments not designated as ASC 815 hedges | Equity contracts | Exchange traded
Assets
Derivative receivables	25,020	22,732
Liabilities
Derivative payables	24,412	21,908
Derivatives instruments not designated as ASC 815 hedges | Commodity and other contracts
Assets
Derivative receivables	16,526	28,324
Liabilities
Derivative payables	17,670	26,318
Derivatives instruments not designated as ASC 815 hedges | Commodity and other contracts | Over-the-counter
Assets
Derivative receivables	15,640	27,285
Liabilities
Derivative payables	16,678	24,912
Derivatives instruments not designated as ASC 815 hedges | Commodity and other contracts | Exchange traded
Assets
Derivative receivables	886	1,039
Liabilities
Derivative payables	992	1,406
Derivatives instruments not designated as ASC 815 hedges | Credit derivatives
Assets
Derivative receivables	10,839	8,389
Liabilities
Derivative payables	10,728	7,777
Derivatives instruments not designated as ASC 815 hedges | Credit derivatives | Over-the-counter
Assets
Derivative receivables	6,566	6,836
Liabilities
Derivative payables	6,607	5,807
Derivatives instruments not designated as ASC 815 hedges | Credit derivatives | Cleared
Assets
Derivative receivables	4,273	1,553
Liabilities
Derivative payables	$ 4,121	$ 1,970