DERIVATIVES - Derivative Mark-to-Market (MTM) Receivables/Payables (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets
Derivative receivables	$ 422,802	$ 387,374
Less: Netting agreements to assets	(334,900)	(308,431)
Less: Netting of cash collateral received	(27,303)	(21,226)
Net receivables included on consolidated balance sheet	60,599	57,717
Less: Cash collateral received	(808)	(563)
Less: Non-cash collateral received	(6,017)	(5,208)
Total net receivables	53,774	51,946
Liabilities
Derivative payables	411,768	385,211
Less: Netting agreements to liabilities	(334,900)	(308,431)
Netting of cash collateral paid	(28,570)	(26,101)
Total derivative liabilities	48,298	50,679
Less: Cash collateral paid	(52)	(348)
Less: Non-cash collateral paid	(3,376)	(12,504)
Total net payables	44,870	37,827
Trading accounts assets
Liabilities
Does not meet applicable offsetting guidance, assets	13,000	4,000
Trading accounts liabilities
Liabilities
Does not meet applicable offsetting guidance, liabilities	15,000	10,000
Over-the-counter | Trading accounts assets
Assets
Less: Netting agreements to assets	(264,000)	(242,000)
Liabilities
Less: Netting agreements to liabilities		(242,000)
Over-the-counter | Trading accounts liabilities
Liabilities
Less: Netting agreements to liabilities	(264,000)
Cleared | Trading accounts assets
Assets
Less: Netting agreements to assets	(36,000)	(44,000)
Liabilities
Less: Netting agreements to liabilities		(44,000)
Cleared | Trading accounts liabilities
Liabilities
Less: Netting agreements to liabilities	(36,000)
Exchange traded | Trading accounts assets
Assets
Less: Netting agreements to assets	(35,000)	(22,000)
Liabilities
Less: Netting agreements to liabilities		(22,000)
Exchange traded | Trading accounts liabilities
Liabilities
Less: Netting agreements to liabilities	(35,000)
Derivatives instruments designated as ASC 815 hedges
Assets
Derivative receivables	3,800	2,247
Liabilities
Derivative payables	1,137	1,858
Derivatives instruments designated as ASC 815 hedges | Interest rate hedges
Assets
Derivative receivables	849	557
Liabilities
Derivative payables	20	126
Derivatives instruments designated as ASC 815 hedges | Foreign exchange contracts
Assets
Derivative receivables	2,951	1,690
Liabilities
Derivative payables	1,117	1,732
Derivatives instruments designated as ASC 815 hedges | Over-the-counter | Interest rate hedges
Assets
Derivative receivables	695	458
Liabilities
Derivative payables	1	5
Derivatives instruments designated as ASC 815 hedges | Over-the-counter | Foreign exchange contracts
Assets
Derivative receivables	2,951	1,690
Liabilities
Derivative payables	1,117	1,732
Derivatives instruments designated as ASC 815 hedges | Cleared | Interest rate hedges
Assets
Derivative receivables	154	99
Liabilities
Derivative payables	19	121
Derivatives instruments designated as ASC 815 hedges | Cleared | Foreign exchange contracts
Assets
Derivative receivables	0	0
Liabilities
Derivative payables	0	0
Derivatives not designated in a qualifying hedging relationship
Assets
Derivative receivables	419,002	385,127
Liabilities
Derivative payables	410,631	383,353
Derivatives not designated in a qualifying hedging relationship | Interest rate hedges
Assets
Derivative receivables	129,429	157,937
Liabilities
Derivative payables	122,112	153,060
Derivatives not designated in a qualifying hedging relationship | Foreign exchange contracts
Assets
Derivative receivables	213,094	158,004
Liabilities
Derivative payables	204,900	155,469
Derivatives not designated in a qualifying hedging relationship | Equity contracts
Assets
Derivative receivables	55,144	43,278
Liabilities
Derivative payables	61,736	47,946
Derivatives not designated in a qualifying hedging relationship | Commodity and other contract options
Assets
Derivative receivables	12,620	17,569
Liabilities
Derivative payables	14,630	18,796
Derivatives not designated in a qualifying hedging relationship | Credit derivatives
Assets
Derivative receivables	8,715	8,339
Liabilities
Derivative payables	7,253	8,082
Derivatives not designated in a qualifying hedging relationship | Over-the-counter | Interest rate hedges
Assets
Derivative receivables	95,907	113,993
Liabilities
Derivative payables	88,776	105,512
Derivatives not designated in a qualifying hedging relationship | Over-the-counter | Foreign exchange contracts
Assets
Derivative receivables	210,755	157,633
Liabilities
Derivative payables	202,582	155,027
Derivatives not designated in a qualifying hedging relationship | Over-the-counter | Equity contracts
Assets
Derivative receivables	19,262	19,515
Liabilities
Derivative payables	25,950	25,425
Derivatives not designated in a qualifying hedging relationship | Over-the-counter | Commodity and other contract options
Assets
Derivative receivables	11,945	16,921
Liabilities
Derivative payables	13,804	18,086
Derivatives not designated in a qualifying hedging relationship | Over-the-counter | Credit derivatives
Assets
Derivative receivables	6,907	6,094
Liabilities
Derivative payables	5,569	6,293
Derivatives not designated in a qualifying hedging relationship | Cleared | Interest rate hedges
Assets
Derivative receivables	33,447	43,858
Liabilities
Derivative payables	33,269	47,462
Derivatives not designated in a qualifying hedging relationship | Cleared | Foreign exchange contracts
Assets
Derivative receivables	2,329	368
Liabilities
Derivative payables	2,298	420
Derivatives not designated in a qualifying hedging relationship | Cleared | Equity contracts
Assets
Derivative receivables	0	0
Liabilities
Derivative payables	0	0
Derivatives not designated in a qualifying hedging relationship | Cleared | Credit derivatives
Assets
Derivative receivables	1,808	2,245
Liabilities
Derivative payables	1,684	1,789
Derivatives not designated in a qualifying hedging relationship | Exchange traded | Interest rate hedges
Assets
Derivative receivables	75	86
Liabilities
Derivative payables	67	86
Derivatives not designated in a qualifying hedging relationship | Exchange traded | Equity contracts
Assets
Derivative receivables	35,882	23,763
Liabilities
Derivative payables	35,786	22,521
Derivatives not designated in a qualifying hedging relationship | Exchange traded | Commodity and other contract options
Assets
Derivative receivables	675	648
Liabilities
Derivative payables	826	710
Derivatives not designated in a qualifying hedging relationship | Exchange traded | Trading accounts assets | Foreign exchange contracts
Assets
Derivative receivables	10	3
Derivatives not designated in a qualifying hedging relationship | Exchange traded | Trading accounts liabilities | Foreign exchange contracts
Liabilities
Derivative payables	$ 20	$ 22