DERIVATIVES ACTIVITIES (Details 2) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Derivative Mark-to-Market (MTM) Receivables/Payables
Amounts receivable (payable) at fair value related to protection sold	$ 23,147,000,000	$ 22,638,000,000
Payables in respect of cash collateral received netted with unrealized gains	33,000,000,000	31,000,000,000
Receivables in respect of cash collateral paid netted with unrealized losses	42,000,000,000	45,000,000,000
Interest rate contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, assets	819,000,000	867,000,000
Other derivative instruments, assets	451,078,000,000	475,805,000,000
Foreign exchange contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, assets	243,000,000	357,000,000
Other derivative instruments, assets	79,494,000,000	84,144,000,000
Equity contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, assets	18,122,000,000	16,146,000,000
Commodity and other contracts | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, assets	12,560,000,000	12,608,000,000
Credit derivatives | Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, assets	64,069,000,000	65,041,000,000
Amounts receivable (payable) at fair value related to protection purchased	40,922,000,000	42,403,000,000
Amounts receivable (payable) at fair value related to protection sold	23,147,000,000	22,638,000,000
Trading account assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, assets	1,062,000,000	1,224,000,000
Other derivative instruments, assets	625,323,000,000	653,744,000,000
Total derivatives, assets	626,385,000,000	654,968,000,000
Cash collateral paid	47,768,000,000	50,302,000,000
Less: Netting agreements and market value adjustments to assets	(626,283,000,000)	(655,057,000,000)
Net receivables	47,870,000,000	50,213,000,000
Interest rate contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, liabilities	45,000,000	72,000,000
Other derivative instruments, liabilities	446,336,000,000	476,667,000,000
Foreign exchange contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, liabilities	749,000,000	762,000,000
Other derivative instruments, liabilities	81,439,000,000	87,512,000,000
Equity contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, liabilities	38,980,000,000	33,434,000,000
Commodity and other contracts | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, liabilities	13,629,000,000	13,518,000,000
Credit derivatives | Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, liabilities	60,886,000,000	59,461,000,000
Amounts receivable (payable) at fair value related to protection purchased	23,487,000,000	23,503,000,000
Amounts receivable (payable) at fair value related to protection sold	37,399,000,000	35,958,000,000
Trading account liabilities
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, liabilities	794,000,000	834,000,000
Other derivative instruments, liabilities	641,270,000,000	670,592,000,000
Total derivatives, liabilities	642,064,000,000	671,426,000,000
Cash collateral received	39,852,000,000	38,319,000,000
Less: Netting agreements and market value adjustments to liabilities	(623,092,000,000)	(650,015,000,000)
Net payables	58,824,000,000	59,730,000,000
Interest rate contracts | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, assets	5,230,000,000	6,342,000,000
Other derivative instruments, assets	2,589,000,000	2,756,000,000
Foreign exchange contracts | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, assets	2,455,000,000	1,656,000,000
Other derivative instruments, assets	1,552,000,000	1,401,000,000
Credit derivatives | Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, assets	75,000,000	88,000,000
Other assets
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, assets	7,685,000,000	7,998,000,000
Other derivative instruments, assets	4,216,000,000	4,245,000,000
Total derivatives, assets	11,901,000,000	12,243,000,000
Cash collateral paid	241,000,000	211,000,000
Less: Netting agreements and market value adjustments to assets	(4,183,000,000)	(2,615,000,000)
Net receivables	7,959,000,000	9,839,000,000
Interest rate contracts | Other liabilities:
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, liabilities	3,008,000,000	2,437,000,000
Other derivative instruments, liabilities	2,336,000,000	2,474,000,000
Foreign exchange contracts | Other liabilities:
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, liabilities	1,412,000,000	2,603,000,000
Other derivative instruments, liabilities	796,000,000	1,433,000,000
Credit derivatives | Other liabilities:
Derivative Mark-to-Market (MTM) Receivables/Payables
Other derivative instruments, liabilities	378,000,000	337,000,000
Other liabilities:
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivative instruments designated as ASC 815 (SFAS 133) hedges, liabilities	4,420,000,000	5,040,000,000
Other derivative instruments, liabilities	3,510,000,000	4,244,000,000
Total derivatives, liabilities	7,930,000,000	9,284,000,000
Cash collateral received	4,262,000,000	3,040,000,000
Less: Netting agreements and market value adjustments to liabilities	(4,183,000,000)	(2,615,000,000)
Net payables	$ 8,009,000,000	$ 9,709,000,000