DERIVATIVES ACTIVITIES (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pretax change in accumulated other comprehensive income (loss)
Cash flow hedges expected to be reclassified within 12 months	$ 400,000,000
Maximum length of time hedged in cash flow hedge	10 years
Other revenue
Derivative gain (loss)
Gains (losses) recognized in Other revenue related to derivatives not designated in a qualifying hedging relationship	(750,000,000)	(1,267,000,000)	1,531,000,000
Gain (loss) on fair value hedges
Gain (loss) on the derivatives in designated and qualifying fair value hedges	(3,023,000,000)	499,000,000	4,306,000,000
Gain (loss) on the hedged item in designated and qualifying fair value hedges	3,019,000,000	(702,000,000)	(4,270,000,000)
Hedge ineffectiveness recognized in earnings on designated and qualifying fair value hedges	(88,000,000)	(233,000,000)	119,000,000
Net gain (loss) excluded from assessment of the effectiveness of fair value hedges	84,000,000	30,000,000	(83,000,000)
Interest rate contracts | Other revenue
Derivative gain (loss)
Gains (losses) recognized in Other revenue related to derivatives not designated in a qualifying hedging relationship	(376,000,000)	(427,000,000)	1,192,000,000
Gain (loss) on fair value hedges
Gain (loss) on the derivatives in designated and qualifying fair value hedges	(3,288,000,000)	122,000,000	4,423,000,000
Gain (loss) on the hedged item in designated and qualifying fair value hedges	3,204,000,000	(371,000,000)	(4,296,000,000)
Hedge ineffectiveness recognized in earnings on designated and qualifying fair value hedges	(84,000,000)	(249,000,000)	118,000,000
Net gain (loss) excluded from assessment of the effectiveness of fair value hedges			9,000,000
Foreign exchange contracts | Other revenue
Derivative gain (loss)
Gains (losses) recognized in Other revenue related to derivatives not designated in a qualifying hedging relationship	221,000,000	182,000,000	224,000,000
Gain (loss) on fair value hedges
Gain (loss) on the derivatives in designated and qualifying fair value hedges	265,000,000	377,000,000	(117,000,000)
Gain (loss) on the hedged item in designated and qualifying fair value hedges	(185,000,000)	(331,000,000)	26,000,000
Hedge ineffectiveness recognized in earnings on designated and qualifying fair value hedges	(4,000,000)	16,000,000	1,000,000
Net gain (loss) excluded from assessment of the effectiveness of fair value hedges	84,000,000	30,000,000	(92,000,000)
Credit derivatives | Other revenue
Derivative gain (loss)
Gains (losses) recognized in Other revenue related to derivatives not designated in a qualifying hedging relationship	(595,000,000)	(1,022,000,000)	115,000,000
Cash Flow Hedges
Pretax change in accumulated other comprehensive income (loss)
Effective portion of cash flow hedges included in AOCI	797,000,000	(179,000,000)	(1,746,000,000)
Effective portion of cash flow hedges reclassified from AOCI to earnings	(876,000,000)	(1,017,000,000)	(1,484,000,000)
Cash Flow Hedges | Interest rate contracts
Pretax change in accumulated other comprehensive income (loss)
Effective portion of cash flow hedges included in AOCI	749,000,000	(322,000,000)	(1,827,000,000)
Effective portion of cash flow hedges reclassified from AOCI to earnings	(700,000,000)	(837,000,000)	(1,227,000,000)
Cash Flow Hedges | Foreign exchange contracts
Pretax change in accumulated other comprehensive income (loss)
Effective portion of cash flow hedges included in AOCI	34,000,000	143,000,000	81,000,000
Effective portion of cash flow hedges reclassified from AOCI to earnings	(176,000,000)	(180,000,000)	(257,000,000)
Cash Flow Hedges | Credit derivatives
Pretax change in accumulated other comprehensive income (loss)
Effective portion of cash flow hedges included in AOCI	14,000,000
Net Investment Hedges
Pretax change in accumulated other comprehensive income (loss)
Effective portion of cash flow hedges included in AOCI	2,370,000,000	(3,829,000,000)	904,000,000
Net investment hedge ineffectiveness recorded in earnings	$ 0