DERIVATIVES - Derivative Mark-to-Market (MTM) Receivables/Payables (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Assets
Derivative receivables	$ 564,385	$ 386,851
Less: Netting agreements to assets	(431,992)	(292,628)
Less: Netting of cash collateral received	(34,709)	(24,447)
Total trading account derivatives, assets	97,684	69,776
Less: Cash collateral received	(1,789)	(907)
Less: Non-cash collateral received	(5,216)	(5,777)
Total net receivables	90,679	63,092
Liabilities
Derivative payables	548,761	377,450
Less: Netting agreements to liabilities	(431,992)	(292,628)
Less: Netting of cash collateral paid	(44,172)	(29,306)
Total derivative liabilities	72,597	55,516
Less: Cash collateral paid	(2,034)	(538)
Less: Non-cash collateral paid	(14,274)	(13,607)
Total net payables	56,289	41,371
Trading account assets
Liabilities
Does not meet applicable offsetting guidance, assets	7,000	10,000
Trading account assets | Over-the-counter
Liabilities
Less: Netting agreements to liabilities	(353,000)	(259,000)
Trading account assets | Cleared
Liabilities
Less: Netting agreements to liabilities	(46,000)	(14,000)
Trading account assets | Exchange traded
Liabilities
Less: Netting agreements to liabilities	(33,000)	(20,000)
Trading accounts liabilities
Liabilities
Does not meet applicable offsetting guidance, liabilities	11,000	11,000
Trading accounts liabilities | Over-the-counter
Assets
Less: Netting agreements to assets	(353,000)	(259,000)
Trading accounts liabilities | Cleared
Assets
Less: Netting agreements to assets	(46,000)	(14,000)
Trading accounts liabilities | Exchange traded
Assets
Less: Netting agreements to assets	(33,000)	(20,000)
Derivative instruments designated as ASC 815 hedges
Assets
Derivative receivables	3,097	2,633
Liabilities
Derivative payables	1,874	1,567
Derivative instruments designated as ASC 815 hedges | Interest rate contracts
Assets
Derivative receivables	740	1,289
Liabilities
Derivative payables	68	95
Derivative instruments designated as ASC 815 hedges | Interest rate contracts | Over-the-counter
Assets
Derivative receivables	601	1,167
Liabilities
Derivative payables	0	6
Derivative instruments designated as ASC 815 hedges | Interest rate contracts | Cleared
Assets
Derivative receivables	139	122
Liabilities
Derivative payables	68	89
Derivative instruments designated as ASC 815 hedges | Foreign exchange contracts
Assets
Derivative receivables	2,357	1,344
Liabilities
Derivative payables	1,806	1,472
Derivative instruments designated as ASC 815 hedges | Foreign exchange contracts | Over-the-counter
Assets
Derivative receivables	2,343	1,338
Liabilities
Derivative payables	1,806	1,472
Derivative instruments designated as ASC 815 hedges | Foreign exchange contracts | Cleared
Assets
Derivative receivables	14	6
Liabilities
Derivative payables	0	0
Derivatives instruments not designated as ASC 815 hedges
Assets
Derivative receivables	561,288	384,218
Liabilities
Derivative payables	546,887	375,883
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts
Assets
Derivative receivables	189,843	164,199
Liabilities
Derivative payables	183,597	149,979
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts | Over-the-counter
Assets
Derivative receivables	131,748	152,524
Liabilities
Derivative payables	125,570	138,114
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts | Cleared
Assets
Derivative receivables	57,713	11,579
Liabilities
Derivative payables	57,704	11,821
Derivatives instruments not designated as ASC 815 hedges | Interest rate contracts | Exchange traded
Assets
Derivative receivables	382	96
Liabilities
Derivative payables	323	44
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts
Assets
Derivative receivables	250,969	134,205
Liabilities
Derivative payables	247,512	133,826
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Over-the-counter
Assets
Derivative receivables	250,015	133,357
Liabilities
Derivative payables	246,503	133,548
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Cleared
Assets
Derivative receivables	954	848
Liabilities
Derivative payables	1,005	278
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Trading account assets | Exchange traded
Assets
Derivative receivables	0
Derivatives instruments not designated as ASC 815 hedges | Foreign exchange contracts | Trading accounts liabilities | Exchange traded
Liabilities
Derivative payables	4
Derivatives instruments not designated as ASC 815 hedges | Equity contracts
Assets
Derivative receivables	60,856	45,252
Liabilities
Derivative payables	63,906	49,684
Derivatives instruments not designated as ASC 815 hedges | Equity contracts | Over-the-counter
Assets
Derivative receivables	28,909	23,452
Liabilities
Derivative payables	31,335	28,352
Derivatives instruments not designated as ASC 815 hedges | Equity contracts | Cleared
Assets
Derivative receivables	32	19
Liabilities
Derivative payables	3	0
Derivatives instruments not designated as ASC 815 hedges | Equity contracts | Exchange traded
Assets
Derivative receivables	31,915	21,781
Liabilities
Derivative payables	32,568	21,332
Derivatives instruments not designated as ASC 815 hedges | Commodity and other contracts
Assets
Derivative receivables	49,395	30,344
Liabilities
Derivative payables	42,530	31,379
Derivatives instruments not designated as ASC 815 hedges | Commodity and other contracts | Over-the-counter
Assets
Derivative receivables	47,061	29,279
Liabilities
Derivative payables	39,429	29,833
Derivatives instruments not designated as ASC 815 hedges | Commodity and other contracts | Exchange traded
Assets
Derivative receivables	2,334	1,065
Liabilities
Derivative payables	3,101	1,546
Derivatives instruments not designated as ASC 815 hedges | Credit derivatives
Assets
Derivative receivables	10,225	10,218
Liabilities
Derivative payables	9,342	11,015
Derivatives instruments not designated as ASC 815 hedges | Credit derivatives | Over-the-counter
Assets
Derivative receivables	6,399	6,896
Liabilities
Derivative payables	5,343	6,959
Derivatives instruments not designated as ASC 815 hedges | Credit derivatives | Cleared
Assets
Derivative receivables	3,826	3,322
Liabilities
Derivative payables	$ 3,999	$ 4,056