DERIVATIVE INSTRUMENTS - Gains (Losses) Recognized on Fair Value Hedging Relationships (Details) (Fixed Maturities, USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives	$ 37	$ 264
Gains (losses) on derivatives excluded from effectiveness testing	(15)	(10)
Gains (losses) on derivatives included in effectiveness testing	52	274
Gains (losses) recognized for hedged items	(39)	(269)
Ineffectiveness recognized for fair value hedge	13	5
Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives	2
Gains (losses) on derivatives excluded from effectiveness testing	3
Gains (losses) on derivatives included in effectiveness testing	(1)
Gains (losses) recognized for hedged items	1
Ineffectiveness recognized for fair value hedge	0
Interest rate swaptions
Derivative Instruments, Gain (Loss) [Line Items]
Total gains (losses) recognized for derivatives	(91)	(23)
Gains (losses) on derivatives excluded from effectiveness testing	19	(22)
Gains (losses) on derivatives included in effectiveness testing	(110)	(1)
Gains (losses) recognized for hedged items	94	1
Ineffectiveness recognized for fair value hedge	$ (16)	$ 0

Gain (loss) from components included in assessment of fair value hedge effectiveness net

No definition available.

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- Definition

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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- Definition

Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

+ References

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- Definition

Net gain (loss) relating to components of the gain (loss) on the fair value hedging instrument excluded from the assessment of fair value hedge effectiveness. Recognized in earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 50

-Paragraph 1

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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- Definition

Amount of gain (loss)recognized in the income statement from the hedging ineffectiveness of a fair value hedge.

+ References

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