INVESTMENTS (Details 2) (USD $) In Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Mortgage-backed securities
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	$ 8,807	$ 8,619
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	114	227
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	770	1,732
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	33	225
Total fair value of available for sale securities that have been in an unrealized loss position	9,577	10,351
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	147	452
U.S. government-sponsored agency guaranteed
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	8,721	8,321
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	114	214
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	419	38
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	9	21
Total fair value of available for sale securities that have been in an unrealized loss position	9,140	8,359
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	123	235
Prime
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	26	89
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months		3
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	66	1,506
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	4	174
Total fair value of available for sale securities that have been in an unrealized loss position	92	1,595
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	4	177
Alt-A
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	1	10
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	10
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	13
Total fair value of available for sale securities that have been in an unrealized loss position	11	10
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	13
Subprime
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months		118
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months		1
Total fair value of available for sale securities that have been in an unrealized loss position		118
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position		1
Non-U.S. residential
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	240	135
Total fair value of available for sale securities that have been in an unrealized loss position	240	135
Commercial.
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	59	81
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months		9
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	35	53
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	7	30
Total fair value of available for sale securities that have been in an unrealized loss position	94	134
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	7	39
U.S. Treasury and federal agency securities
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	7,356	18,909
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	12	76
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	558	725
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	23	35
Total fair value of available for sale securities that have been in an unrealized loss position	7,914	19,634
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	35	111
U.S. Treasury
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	3,195	9,229
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	8	21
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	558	725
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	23	35
Total fair value of available for sale securities that have been in an unrealized loss position	3,753	9,954
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	31	56
Agency obligations
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	4,161	9,680
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	4	55
Total fair value of available for sale securities that have been in an unrealized loss position	4,161	9,680
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	4	55
State and municipal securities
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	17	626
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	1	60
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	11,995	11,322
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	2,264	2,440
Total fair value of available for sale securities that have been in an unrealized loss position	12,012	11,948
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	2,265	2,500
Foreign government
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	34,850	32,731
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	232	271
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	8,022	6,609
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	192	144
Total fair value of available for sale securities that have been in an unrealized loss position	42,872	39,340
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	424	415
Corporate
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	665	1,128
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	12	30
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	724	860
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	26	29
Total fair value of available for sale securities that have been in an unrealized loss position	1,389	1,988
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	38	59
Asset-based financing
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	2,190	2,533
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	31	64
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	184	14
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	8	4
Total fair value of available for sale securities that have been in an unrealized loss position	2,374	2,547
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	39	68
Other debt securities
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	536	559
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	55	60
Total fair value of available for sale securities that have been in an unrealized loss position	536	559
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	55	60
Marketable equity securities AFS
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	57	68
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	7	3
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	1,615	2,039
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	201	208
Total fair value of available for sale securities that have been in an unrealized loss position	1,672	2,107
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	208	211
Total securities AFS
Available for Sale Securities Continuous Unrealized Loss Position
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months	53,942	64,614
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months	409	731
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer	24,404	23,860
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer	2,802	3,145
Total fair value of available for sale securities that have been in an unrealized loss position	78,346	88,474
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position	$ 3,211	$ 3,876