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DERIVATIVE INSTRUMENTS - Components of Gain or Loss on Derivatives that Qualified as Cash Flow Hedges (Detail) (Cash flow hedges, USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)	$ (12)	$ (55)
Net Realized Investment Gains (Losses) Recognized in Income on Derivative (Ineffective Portion)	0	(4)
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)	0	1
Net Realized Investment Gains (Losses) Recognized in Income on Derivative (Ineffective Portion)	0	0
Foreign currency swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)	(12)	(56)
Net Realized Investment Gains (Losses) Recognized in Income on Derivative (Ineffective Portion)	$ 0	$ (4)

The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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