FAIR VALUE MEASUREMENTS (Details 4) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, Sales, Issues and Settlements, Net, assets	$ 1,804	$ 4,480	$ 1,791	$ 4,284
Issuances	0	0	0	0
Transfers into Level 3 at end of reporting period, net gains (losses) not included in realized and unrealized gains and losses related to Level 3 for the period	17		(55)
Transfers out Level 3 at end of reporting period, net gains (losses) not included in realized and unrealized gains and losses related to Level 3 for the period.	10		12
Liabilities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, liabilities	2		5	2
Sales, liabilities	(3)	(8)	(13)	(14)
Settlements, liabilities	125	(738)	218	493
Purchases, Sales, Issues and Settlements, Net, liabilities	124	(746)	210	481
Policyholder contract deposits
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Sales, liabilities	(6)	(8)	(12)	(14)
Settlements, liabilities	57	10	68	13
Purchases, Sales, Issues and Settlements, Net, liabilities	51	2	56	(1)
Derivative liabilities, net
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, liabilities	2		5	2
Sales, liabilities	3		(1)
Settlements, liabilities	65	(770)	128	344
Purchases, Sales, Issues and Settlements, Net, liabilities	70	(770)	132	346
Transfers out Level 3 at end of reporting period, net gains (losses) not included in realized and unrealized gains and losses related to Level 3 for the period.	0		0
Long-term debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Settlements, liabilities	3	22	22	136
Purchases, Sales, Issues and Settlements, Net, liabilities	3	22	22	136
Assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	3,969	6,460	6,557	9,374
Sales, assets	(230)	(645)	(886)	(1,203)
Settlements, assets	(1,935)	(1,335)	(3,880)	(3,887)
Purchases, Sales, Issues and Settlements, Net, assets	1,804	4,480	1,791	4,284
Bonds available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	3,469	1,175	5,500	3,699
Sales, assets	(213)	(548)	(771)	(721)
Settlements, assets	(1,002)	(900)	(2,014)	(1,749)
Purchases, Sales, Issues and Settlements, Net, assets	2,254	(273)	2,715	1,229
Bonds available for sale \| Obligations of states, municipalities and political subdivisions
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	150	97	308	205
Sales, assets	(81)	(158)	(103)	(166)
Settlements, assets		(2)		(2)
Purchases, Sales, Issues and Settlements, Net, assets	69	(63)	205	37
Bonds available for sale \| Non-U.S. government
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	5	1	8	1
Sales, assets		(1)		(3)
Settlements, assets	(1)		(2)
Purchases, Sales, Issues and Settlements, Net, assets	4		6	(2)
Bonds available for sale \| Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	211	80	308	141
Sales, assets	(114)	(52)	(114)	(53)
Settlements, assets	(89)	(23)	(164)	(86)
Purchases, Sales, Issues and Settlements, Net, assets	8	5	30	2
Bonds available for sale \| Residential mortgage backed securities (RMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	2,110	198	2,712	2,110
Sales, assets		(268)	(231)	(362)
Settlements, assets	(581)	(546)	(1,215)	(1,038)
Purchases, Sales, Issues and Settlements, Net, assets	1,529	(616)	1,266	710
Bonds available for sale \| Commercial mortgage-backed securities (CMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	320	596	693	722
Sales, assets	(18)	(69)	(164)	(133)
Settlements, assets	(39)	(35)	(341)	(86)
Purchases, Sales, Issues and Settlements, Net, assets	263	492	188	503
Bonds available for sale \| Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	673	203	1,471	520
Sales, assets			(159)	(4)
Settlements, assets	(292)	(294)	(292)	(537)
Purchases, Sales, Issues and Settlements, Net, assets	381	(91)	1,020	(21)
Bond trading securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	237	5,095	550	5,208
Sales, assets		(49)	(58)	(416)
Settlements, assets	(786)	(267)	(1,503)	(1,806)
Purchases, Sales, Issues and Settlements, Net, assets	(549)	4,779	(1,011)	2,986
Bond trading securities \| Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Settlements, assets		(2)		(4)
Purchases, Sales, Issues and Settlements, Net, assets		(2)		(4)
Bond trading securities \| Residential mortgage backed securities (RMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	108		213
Settlements, assets	(44)	(19)	(75)	(38)
Purchases, Sales, Issues and Settlements, Net, assets	64	(19)	138	(38)
Bond trading securities \| Commercial mortgage-backed securities (CMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets		70	19	183
Sales, assets		(49)	(58)	(106)
Settlements, assets	(41)	(8)	(101)	(199)
Purchases, Sales, Issues and Settlements, Net, assets	(41)	13	(140)	(122)
Bond trading securities \| Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	129	5,025	318	5,025
Sales, assets				(310)
Settlements, assets	(701)	(238)	(1,327)	(1,565)
Purchases, Sales, Issues and Settlements, Net, assets	(572)	4,787	(1,009)	3,150
Equity securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	58	56	59	67
Sales, assets	(1)	(19)	(11)	(33)
Settlements, assets		5	(1)	2
Purchases, Sales, Issues and Settlements, Net, assets	57	42	47	36
Other invested assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	205	134	448	400
Sales, assets	(16)	(29)	(46)	(33)
Settlements, assets	(147)	(173)	(362)	(334)
Purchases, Sales, Issues and Settlements, Net, assets	$ 42	$ (68)	$ 40	$ 33

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Net gains or losses for the period (realized and unrealized) related to assets and liabilities transferred into Level 3 at fair value at the end of the reporting period and are therefore not reflected in realized and unrealized gains and losses related to Level 3 for the period.

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Net gains or losses for the period (realized and unrealized) related to assets and liabilities transferred out of Level 3 at fair value at the end of the reporting period and are therefore not reflected in realized and unrealized gains and losses related to Level 3 for the period.

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Issues that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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Amount of purchases, sales, issues, and settlements (net) which have taken place in relation to assets measured at fair value on a recurring basis using unobservable inputs (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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