INVESTMENTS (Details 9) (USD $) In Millions																9 Months Ended					9 Months Ended		3 Months Ended	9 Months Ended				6 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended										9 Months Ended								3 Months Ended	9 Months Ended
	Sep. 30, 2011 Mortgage-backed securities AFS debt securities	Jun. 30, 2011 Mortgage-backed securities AFS debt securities	Dec. 31, 2010 Mortgage-backed securities AFS debt securities	Sep. 30, 2011 Prime AFS debt securities	Jun. 30, 2011 Prime AFS debt securities	Dec. 31, 2010 Prime AFS debt securities	Sep. 30, 2011 Alt-A AFS debt securities	Jun. 30, 2011 Alt-A AFS debt securities	Dec. 31, 2010 Alt-A AFS debt securities	Sep. 30, 2011 Asset-based financing AFS debt securities	Jun. 30, 2011 Asset-based financing AFS debt securities	Dec. 31, 2010 Asset-based financing AFS debt securities	Sep. 30, 2011 Commercial real estate AFS debt securities	Jun. 30, 2011 Commercial real estate AFS debt securities	Dec. 31, 2010 Commercial real estate AFS debt securities	Sep. 30, 2011 U.S. Treasury AFS debt securities	Jun. 30, 2011 U.S. Treasury AFS debt securities	Sep. 30, 2011 State and municipal AFS debt securities	Jun. 30, 2011 State and municipal AFS debt securities	Dec. 31, 2010 State and municipal AFS debt securities	Sep. 30, 2011 Foreign government AFS debt securities	Jun. 30, 2011 Foreign government AFS debt securities	Sep. 30, 2011 Corporate AFS debt securities	Sep. 30, 2011 Corporate AFS debt securities	Sep. 30, 2011 Other debt securities AFS debt securities	Jun. 30, 2011 Other debt securities AFS debt securities	Dec. 31, 2010 Other debt securities AFS debt securities	Jun. 30, 2011 AFS debt securities	Sep. 30, 2011 AFS debt securities	Sep. 30, 2011 Mortgage-backed securities HTM debt securities	Sep. 30, 2011 Mortgage-backed securities HTM debt securities	Sep. 30, 2011 Prime HTM debt securities	Jun. 30, 2011 Prime HTM debt securities	Sep. 30, 2011 Alt-A HTM debt securities	Sep. 30, 2011 Alt-A HTM debt securities	Sep. 30, 2011 Subprime HTM debt securities	Sep. 30, 2011 Subprime HTM debt securities	Sep. 30, 2011 Non-U.S. residential HTM debt securities	Jun. 30, 2011 Non-U.S. residential HTM debt securities	Dec. 31, 2010 Non-U.S. residential HTM debt securities	Sep. 30, 2011 Asset-based financing HTM debt securities	Jun. 30, 2011 Asset-based financing HTM debt securities	Dec. 31, 2010 Asset-based financing HTM debt securities	Sep. 30, 2011 Commercial real estate HTM debt securities	Jun. 30, 2011 Commercial real estate HTM debt securities	Dec. 31, 2010 Commercial real estate HTM debt securities	Sep. 30, 2011 State and municipal HTM debt securities	Jun. 30, 2011 State and municipal HTM debt securities	Sep. 30, 2011 Corporate HTM debt securities	Jun. 30, 2011 Corporate HTM debt securities	Dec. 31, 2010 Corporate HTM debt securities	Sep. 30, 2011 Other debt securities HTM debt securities	Jun. 30, 2011 Other debt securities HTM debt securities	Dec. 31, 2010 Other debt securities HTM debt securities	Sep. 30, 2011 HTM debt securities	Sep. 30, 2011 HTM debt securities
Schedule of other-than-temporary impairment, credit losses recognized in earnings, roll forward
Balance at beginning of period	$ 296	$ 296	$ 296	$ 292	$ 292	$ 292	$ 2	$ 2	$ 2	$ 10	$ 10	$ 10	$ 2	$ 2	$ 2	$ 48	$ 66	$ 3	$ 3	$ 3	$ 159	$ 163	$ 155	$ 154	$ 52	$ 52	$ 52	$ 722	$ 722	$ 2,394	$ 3,795	$ 308	$ 84	$ 1,952	$ 3,149	$ 252	$ 232	$ 96	$ 96	$ 96	$ 113	$ 113	$ 113	$ 10	$ 10	$ 10	$ 7	$ 9	$ 351	$ 351	$ 351	$ 5	$ 5	$ 5	$ 2,872	$ 4,271
Credit impairments recognized in earnings on securities not previously impaired																18								1					19	47	67			47	65		2										2								47	69
Credit impairments recognized in earnings on securities that have been previously impaired																					4.0		2.0	2.0				2.0	6.0	86.0	304.0	2.0		85.0	279.0	1.0	23.0																		86.0	304.0
Reductions due to credit impaired securities sold, transferred or matured																															(1,639)	(226)			(1,409)		(4)																			(1,639)
Balance at end of period	$ 296	$ 296	$ 296	$ 292	$ 292	$ 292	$ 2	$ 2	$ 2	$ 10	$ 10	$ 10	$ 2	$ 2	$ 2	$ 66	$ 66	$ 3	$ 3	$ 3	$ 163	$ 163	$ 157	$ 157	$ 52	$ 52	$ 52	$ 745	$ 747	$ 2,527	$ 2,527	$ 84	$ 84	$ 2,084	$ 2,084	$ 253	$ 253	$ 96	$ 96	$ 96	$ 113	$ 113	$ 113	$ 10	$ 10	$ 10	$ 9	$ 9	$ 351	$ 351	$ 351	$ 5	$ 5	$ 5	$ 3,005	$ 3,005