INVESTMENTS (FIXED MATURITIES AVAILABLE FOR SALE) (DETAILS) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]
Number Of Fixed Maturities In An Unrealized Loss Position Greater Than 12 Months	358		358		535
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 873		$ 873		$ 2,558
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(27)		(27)		(152)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1,847		1,847		1,563
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(449)		(449)		(534)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	2,720		2,720		4,121
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(476)		(476)		(686)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	30,589		30,589		30,227
Accumulated Other Comprehensive Income Unrealized Gain Loss On Available For Sale Securities	2,442		2,442		1,784
The carrying value of fixed maturities non-income producing	14		14
Investment Income Investment Expense	13	8	26	25
Trading Securities, Cost	1,503		1,503		1,014
Trading Securities, Fair Value Disclosure	1,527		1,527		982
Separate Account Equity Investment Carrying Value	50		50		48
Separate Account Equity Investment Cost	50		50		50
Equity Securities, Carrying Value	20		20		19
Equity Securities, Amortized Cost	19		19		18
Net Realized and Unrealized Gain (Loss) on Trading Securities	(16)	(5)	32	9
Other Than Investment Grade [Member]
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis Other Than Investment Grade	2,266		2,266		2,179
Percentage Of Available For Sale Securities	7.40%		7.40%		7.20%
Subprime residential mortgage loans [Member]
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Other Investments and Securities, at Cost	20		20		23
Alt residential mortgage loans [Member]
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Other Investments and Securities, at Cost	12		12		13
Corporate Debt Securities [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	661		661		1,910
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(23)		(23)		(96)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	486		486		389
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(48)		(48)		(51)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	1,147		1,147		2,299
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(71)		(71)		(147)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Debt Securities Exposure In Single Issuer Greater Than Stated Percentage Of Total Investments	0.30%		0.30%
Debt Securities Exposure In Single Issuer Of Total Investments	139		139		139
Available-for-sale Securities, Amortized Cost Basis	20,717		20,717		21,444
U.S.Treasury, Govt and Agency [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0		0		149
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	0		0		149
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	0		0		0
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	4,600		4,600		3,598
US States and Political Subdivisions Debt Securities [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	19		19		18
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(1)		(1)		(2)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	19		19		18
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(1)		(1)		(2)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	448		448		478
Foreign Government Debt Securities [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	1		1		30
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	0		0		(1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2		2		5
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	3		3		35
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	0		0		(1)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	451		451		461
Commercial Mortgage Backed Securities [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	64		64		79
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	(4)		(4)		(27)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	789		789		781
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(331)		(331)		(384)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	853		853		860
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(335)		(335)		(411)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	1,231		1,231		1,306
Residential Mortgage Backed Securities [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	131		131		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	1		1		1
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	132		132		1
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	0		0		0
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	1,713		1,713		1,556
Asset-backed Securities [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0		0		49
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	0		0		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	42		42		44
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(8)		(8)		(11)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	42		42		93
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(8)		(8)		(11)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	223		223		260
Redeemable Preferred Stock [Member]
Available For Sale Securities Continuous Unrealized Loss Position [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	16		16		341
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses	0		0		(28)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	508		508		325
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses	(61)		(61)		(86)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	524		524		666
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses	(61)		(61)		(114)
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	1,187		1,187		1,106
Fixed Maturities [Member]
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Available-for-sale Securities, Amortized Cost Basis	30,570		30,570		30,209
Fixed Maturities [Member] | Other Than Investment Grade [Member]
Investments In Fixed Maturity Securities Other Disclosure [Abstract]
Accumulated Other Comprehensive Income Unrealized Gain Loss On Available For Sale Securities	$ 361		$ 361		$ 455