DERIVATIVES ACTIVITIES (Details 2) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Less:Netting agreements to assets	$ 426,000,000,000
Less:Netting agreements to liabilities	426,000,000,000
Netting cash collateral paid	34,000,000,000
Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Less:Netting agreements to assets	327,000,000,000
Less:Netting agreements to liabilities	327,000,000,000
Netting cash collateral paid	2,000,000,000
Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Less:Netting agreements to assets	3,000,000,000
Less:Netting agreements to liabilities	3,000,000,000
Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	836,741,000,000	1,058,715,000,000
Cash collateral paid, net of amount used to offset derivative liabilities	5,349,000,000	5,597,000,000
Less:Netting agreements to assets	(755,725,000,000)	(970,782,000,000)
Netting cash collateral received	(34,616,000,000)	(38,910,000,000)
Net receivables	51,749,000,000	54,620,000,000
Cash collateral received	(391,000,000)	(1,021,000,000)
Non-cash collateral received	(6,268,000,000)	(7,143,000,000)
Total	45,090,000,000	46,456,000,000
Cash collateral paid, gross	41,551,000,000	61,152,000,000
Does not meet applicable offsetting guidance, assets	14,000,000,000	17,000,000,000
Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	833,085,000,000	1,070,165,000,000
Cash collateral received, net of amount used to offset derivative assets	8,985,000,000	7,923,000,000
Less:Netting agreements to liabilities	(755,725,000,000)	(970,782,000,000)
Netting cash collateral paid	(36,202,000,000)	(55,555,000,000)
Net payables	50,143,000,000	51,751,000,000
Cash collateral paid	(16,000,000)	(10,000,000)
Non-cash collateral paid	(4,036,000,000)	(5,641,000,000)
Total	46,091,000,000	46,100,000,000
Cash collateral received, gross	43,601,000,000	46,833,000,000
Does not meet applicable offsetting guidance, liabilities	19,000,000,000	18,000,000,000
Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	4,773,000,000	6,303,000,000
Cash collateral paid, net of amount used to offset derivative liabilities	327,000,000	214,000,000
Netting cash collateral received	(3,384,000,000)	(4,660,000,000)
Net receivables	1,716,000,000	1,857,000,000
Non-cash collateral received	(127,000,000)	(388,000,000)
Total	1,589,000,000	1,469,000,000
Cash collateral paid, gross	327,000,000	214,000,000
Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	2,149,000,000	2,252,000,000
Cash collateral received, net of amount used to offset derivative assets	276,000,000	658,000,000
Net payables	2,425,000,000	2,910,000,000
Total	2,425,000,000	2,910,000,000
Cash collateral received, gross	3,660,000,000	5,318,000,000
Protection purchased
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	25,652,000,000	20,832,000,000
Protection sold
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	23,845,000,000	19,710,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	5,857,000,000	8,136,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	2,204,000,000	3,613,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	4,382,000,000	5,552,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,524,000,000	1,719,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	4,445,000,000	7,795,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,177,000,000	5,110,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	3,268,000,000	2,685,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,135,000,000	2,263,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	867,000,000	1,702,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	268,000,000	561,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	3,243,000,000	4,574,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	3,234,000,000	4,574,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	9,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,013,000,000	1,178,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,013,000,000	1,175,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables		3,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,412,000,000	341,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,412,000,000	341,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,069,000,000	1,350,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,069,000,000	1,350,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,139,000,000	978,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,139,000,000	978,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	509,000,000	525,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	509,000,000	525,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	2,000,000	16,000,000
Derivative instruments designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Other liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	2,000,000	16,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	830,884,000,000	1,050,579,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	830,881,000,000	1,066,552,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	391,000,000	751,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	625,000,000	533,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	665,306,000,000	891,552,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	343,188,000,000	485,100,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	322,065,000,000	406,384,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account assets | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	53,000,000	68,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	654,972,000,000	889,629,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	327,066,000,000	473,446,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	327,777,000,000	416,127,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Trading account liabilities | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	129,000,000	56,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	170,000,000	449,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	123,000,000	438,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	47,000,000	11,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	158,000,000	29,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	11,000,000	4,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Interest rate contracts | Other liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	147,000,000	25,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	85,299,000,000	75,937,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	85,253,000,000	75,933,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	3,000,000	4,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account assets | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	43,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	85,973,000,000	80,699,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	85,930,000,000	80,695,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,000,000	4,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Trading account liabilities | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	42,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	103,000,000	200,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	103,000,000	200,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	20,000,000	112,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Foreign exchange contracts | Other liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	20,000,000	112,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	25,198,000,000	18,209,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	19,245,000,000	14,273,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables		53,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account assets | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	5,953,000,000	3,883,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	34,231,000,000	31,839,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	28,460,000,000	28,138,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables		91,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Equity contracts | Trading account liabilities | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	5,771,000,000	3,610,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Commodity and other contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	10,039,000,000	10,857,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Commodity and other contracts | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	8,331,000,000	8,889,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Commodity and other contracts | Trading account assets | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,708,000,000	1,968,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Commodity and other contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	10,986,000,000	12,131,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Commodity and other contracts | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	9,838,000,000	10,154,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Commodity and other contracts | Trading account liabilities | Exchange traded
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	1,148,000,000	1,977,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	45,042,000,000	54,024,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Trading account assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	43,272,000,000	52,809,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Trading account assets | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	1,770,000,000	1,215,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	44,719,000,000	52,254,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Trading account liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	42,707,000,000	51,175,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Trading account liabilities | Cleared
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	2,012,000,000	1,079,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	118,000,000	102,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Other assets | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	118,000,000	102,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Other liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	447,000,000	392,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Other liabilities | Over-the-counter
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	447,000,000	392,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Protection purchased | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	21,197,000,000	34,314,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Protection purchased | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	25,203,000,000	20,424,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Protection sold | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative receivables	23,845,000,000	19,710,000,000
Derivative instruments not designated as ASC 815 (SFAS 133) hedges | Credit derivatives | Protection sold | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative payables	$ 19,516,000,000	$ 31,830,000,000