INVESTMENTS - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				3 Months Ended
	Mar. 31, 2014 investment	Mar. 31, 2013 investment	Mar. 31, 2014 Variable Interest Entity, Not Consolidated issuer	Dec. 31, 2013 Variable Interest Entity, Not Consolidated	Mar. 31, 2014 Perpetual securities	Mar. 31, 2014 Perpetual securities Lower Limit	Mar. 31, 2014 Perpetual securities Minimum Upper Limit	Mar. 31, 2014 Parent Company
Schedule of Investments [Line Items]
Reclassified investments from the held-to-maturity portfolio to the available-for-sale portfolio, number of investments	1	0
Reclassified investments from the held-to-maturity portfolio to the available-for-sale portfolio, amortized cost	$ 63
Reclassified investments from the held-to-maturity portfolio to the available-for-sale portfolio, aggregate unrealized gain (loss)	(8)
Available-for-sale fixed-maturity securities, amortized cost								339
Securities available for sale, fixed maturities, fair value			$ 7,191	$ 6,916				$ 353
Perpetual securities, interest coupons that were fixed at issuance subsequently change to a floating short-term interest rate					floating short-term interest rate of 125 to more than 300 basis points above an appropriate market index
Maturity date (in years)					25 years
Perpetual securities, floating short-term interest rate basis point above market index						1.25%	3.00%
Number of issuers of VIEs not-consolidated			174
Percentage that the lending policy requires that the fair value of the securities and/or unrestricted cash received as collateral be of the fair value of the loaned securities	102.00%