INVESTMENTS - Information Regarding Pretax Realized Gains and Losses From Investments (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Gain (Loss) on Investments [Line Items]
Other-than-temporary impairment losses realized	$ (199)	[1]	$ (977)	[1]	$ (1,901)	[1]
Derivative gains (losses)	326		151		(257)
Other	10		3		17
Total realized investment gains (losses)	399		(349)		(1,552)
Fixed maturities
Gain (Loss) on Investments [Line Items]
Total realized investment gains (losses)	135		(349)		(739)
Fixed maturities | Available-for-sale Securities
Gain (Loss) on Investments [Line Items]
Gross gains from sales	316		427		992
Gross losses from sales	(87)		(48)		(465)
Net gains (losses) from redemptions	34		2		69
Other-than-temporary impairment losses realized	(128)		(734)		(1,335)
Fixed maturities | Held-to-maturity Securities
Gain (Loss) on Investments [Line Items]
Net gains (losses) from redemptions	0		4		0
Perpetual securities
Gain (Loss) on Investments [Line Items]
Gross gains from sales	0		127		102
Gross losses from sales	(1)		(98)		(109)
Net gains (losses) from redemptions	0		60		0
Other-than-temporary impairment losses realized	(70)		(243)		(565)
Total realized investment gains (losses)	(71)		(154)		(572)
Equity securities
Gain (Loss) on Investments [Line Items]
Other-than-temporary impairment losses realized	(1)		0		(1)
Total realized investment gains (losses)	(1)		0		(1)
Derivatives and other
Gain (Loss) on Investments [Line Items]
Total realized investment gains (losses)	$ 336		$ 154		$ (240)

[1] Includes $45, $597 and $1,286 for the years ended December 31, 2013, 2012 and 2011, respectively, for credit-related impairments; $26 and $27 for the years ended December 31, 2013 and 2012, respectively, for impairments due to severity and duration of decline in fair value; and $128, $353 and $615 for the years ended December 31, 2013, 2012 and 2011, respectively, from change in intent to sell securities