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DERIVATIVE INSTRUMENTS - Gain or Loss Recognized in Income on Non-qualifying Strategies (Detail) (Non-qualifying strategies, USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized within Net Realized Investment Gains (Losses)	$ 80	$ (26)
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized within Net Realized Investment Gains (Losses)	(3)	(5)
Foreign currency swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized within Net Realized Investment Gains (Losses)	50	(29)
Credit default swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized within Net Realized Investment Gains (Losses)	33	5
Other [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized within Net Realized Investment Gains (Losses)	$ 0	$ 3

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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