FAIR VALUE MEASUREMENTS (Details 4) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, Sales, Issues and Settlements, Net, assets	$ 142	$ (7,524)	$ 1,933	$ (3,240)
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	43		(12)
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.	18		30
Liabilities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, liabilities	4	6	9	8
Sales, liabilities	(4)	(6)	(17)	(20)
Settlements, liabilities	(943)	260	(725)	753
Purchases, Sales, Issues and Settlements, Net, liabilities	(943)	260	(733)	741
Policyholder contract deposits
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Sales, liabilities	(4)	(6)	(16)	(20)
Settlements, liabilities	(47)	3	21	16
Purchases, Sales, Issues and Settlements, Net, liabilities	(51)	(3)	5	(4)
Derivative liabilities, net
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, liabilities	4	6	9	8
Sales, liabilities			(1)
Settlements, liabilities	(897)	196	(769)	540
Purchases, Sales, Issues and Settlements, Net, liabilities	(893)	202	(761)	548
Long-term debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Settlements, liabilities	1	61	23	197
Purchases, Sales, Issues and Settlements, Net, liabilities	1	61	23	197
Assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	2,178	3,369	8,734	12,743
Sales, assets	(127)	(649)	(1,013)	(1,542)
Settlements, assets	(1,909)	(10,244)	(5,788)	(14,441)
Purchases, Sales, Issues and Settlements, Net, assets	142	(7,524)	1,933	(3,240)
Bonds available for sale
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	1,898	1,038	7,398	4,737
Sales, assets	(37)	(546)	(808)	(1,267)
Settlements, assets	(1,108)	(986)	(3,122)	(2,735)
Purchases, Sales, Issues and Settlements, Net, assets	753	(494)	3,468	735
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	194	189	502	394
Sales, assets	(34)	(53)	(137)	(219)
Settlements, assets		(34)		(36)
Purchases, Sales, Issues and Settlements, Net, assets	160	102	365	139
Bonds available for sale | Non-U.S. government
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	1	3	9	4
Sales, assets				(3)
Settlements, assets		(1)	(2)	(1)
Purchases, Sales, Issues and Settlements, Net, assets	1	2	7
Bonds available for sale | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	146	139	454	280
Sales, assets		(6)	(114)	(59)
Settlements, assets	(146)	(39)	(310)	(125)
Purchases, Sales, Issues and Settlements, Net, assets		94	30	96
Bonds available for sale | Residential mortgage backed securities (RMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	750	198	3,462	2,308
Sales, assets		(360)	(231)	(722)
Settlements, assets	(623)	(516)	(1,838)	(1,554)
Purchases, Sales, Issues and Settlements, Net, assets	127	(678)	1,393	32
Bonds available for sale | Commercial mortgage-backed securities (CMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	179	299	872	1,021
Sales, assets	(3)	(127)	(167)	(260)
Settlements, assets	(74)	(57)	(415)	(143)
Purchases, Sales, Issues and Settlements, Net, assets	102	115	290	618
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	628	210	2,099	730
Sales, assets			(159)	(4)
Settlements, assets	(265)	(339)	(557)	(876)
Purchases, Sales, Issues and Settlements, Net, assets	363	(129)	1,383	(150)
Bond trading securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	31	2,202	581	7,410
Sales, assets	(87)	(51)	(145)	(157)
Settlements, assets	(562)	(8,987)	(2,065)	(11,103)
Purchases, Sales, Issues and Settlements, Net, assets	(618)	(6,836)	(1,629)	(3,850)
Bond trading securities | Corporate debt
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Settlements, assets		(1)		(5)
Purchases, Sales, Issues and Settlements, Net, assets		(1)		(5)
Bond trading securities | Residential mortgage backed securities (RMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	31		244
Sales, assets	(12)	(45)	(12)	(45)
Settlements, assets	(27)	(11)	(102)	(49)
Purchases, Sales, Issues and Settlements, Net, assets	(8)	(56)	130	(94)
Bond trading securities | Commercial mortgage-backed securities (CMBS)
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets		11	19	194
Sales, assets	(9)		(67)	(106)
Settlements, assets	(44)	(10)	(145)	(209)
Purchases, Sales, Issues and Settlements, Net, assets	(53)	1	(193)	(121)
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		2,191	318	7,216
Sales, assets	(66)	(6)	(66)	(6)
Settlements, assets	(491)	(8,965)	(1,818)	(10,840)
Purchases, Sales, Issues and Settlements, Net, assets	(557)	(6,780)	(1,566)	(3,630)
Equity securities
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets			58	67
Sales, assets		(22)	(11)	(55)
Settlements, assets	(48)	(82)	(48)	(80)
Purchases, Sales, Issues and Settlements, Net, assets	(48)	(104)	(1)	(68)
Other invested assets
Fair value assets and liabilities measured on recurring basis, unobservable input reconciliation
Purchases, assets	249	129	697	529
Sales, assets	(3)	(30)	(49)	(63)
Settlements, assets	(191)	(189)	(553)	(523)
Purchases, Sales, Issues and Settlements, Net, assets	$ 55	$ (90)	$ 95	$ (57)