INVESTMENTS - Information Regarding Changes in Unrealized Gains and Losses from Investments (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	$ (2,418)	$ 2,157	$ 1,721
Fixed maturities | Available-for-sale Securities
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	(2,281)	1,624	1,963
Fixed maturities | Transferred to Held to Maturity Securities
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	(9)	(14)	(101)
Perpetual securities | Available-for-sale Securities
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	(129)	547	(143)
Equity securities
Changes in unrealized gains (losses):
Changes in unrealized gains (losses)	$ 1	$ 0	$ 2