DERIVATIVE INSTRUMENTS - Summary of Balance Sheet Classification of Derivative Fair Value Amounts, as well as Gross Asset and Liability Fair Value Amounts (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	$ 22,801	$ 13,370
Net Derivatives Fair Value	163	(589)
Asset Derivatives Fair Value	598	345
Liability Derivatives Fair Value	(435)	(934)
Other assets
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	15,334	2,585
Net Derivatives Fair Value	598	345
Asset Derivatives Fair Value	598	345
Liability Derivatives Fair Value	0	0
Other liabilities
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	7,467	10,785
Net Derivatives Fair Value	(435)	(934)
Asset Derivatives Fair Value	0	0
Liability Derivatives Fair Value	(435)	(934)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	1	32
Liability Derivatives Fair Value	(1)	(3)
Foreign currency swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	426	311
Liability Derivatives Fair Value	(300)	(329)
Foreign currency forwards
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	129
Liability Derivatives Fair Value	(13)	(535)
Interest rate swaptions
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	38
Liability Derivatives Fair Value	(108)
Foreign currency options
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	2
Liability Derivatives Fair Value	(4)
Credit default swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	2	2
Liability Derivatives Fair Value	(9)	(67)
Cash flow hedges
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	131	139
Net Derivatives Fair Value	9	14
Asset Derivatives Fair Value	9	14
Liability Derivatives Fair Value	0	0
Cash flow hedges | Interest rate swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	56	64
Net Derivatives Fair Value	0	0
Asset Derivatives Fair Value	0	0
Liability Derivatives Fair Value	0	0
Cash flow hedges | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	75	75
Net Derivatives Fair Value	9	14
Asset Derivatives Fair Value	9	14
Liability Derivatives Fair Value	0	0
Fair value hedges
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	15,766	6,944
Net Derivatives Fair Value	55	(535)
Asset Derivatives Fair Value	167	0
Liability Derivatives Fair Value	(112)	(535)
Fair value hedges | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	11,266	6,944
Net Derivatives Fair Value	125	(535)
Asset Derivatives Fair Value	129	0
Liability Derivatives Fair Value	(4)	(535)
Fair value hedges | Interest rate swaptions
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	4,500
Net Derivatives Fair Value	(70)
Asset Derivatives Fair Value	38
Liability Derivatives Fair Value	(108)
Net investment hedge
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	2,436
Net Derivatives Fair Value	190
Asset Derivatives Fair Value	266
Liability Derivatives Fair Value	(76)
Net investment hedge | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	1,950
Net Derivatives Fair Value	201
Asset Derivatives Fair Value	264
Liability Derivatives Fair Value	(63)
Net investment hedge | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	384
Net Derivatives Fair Value	(9)
Asset Derivatives Fair Value	0
Liability Derivatives Fair Value	(9)
Net investment hedge | Foreign currency options
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	102
Net Derivatives Fair Value	(2)
Asset Derivatives Fair Value	2
Liability Derivatives Fair Value	(4)
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	4,468	6,287
Net Derivatives Fair Value	(91)	(68)
Asset Derivatives Fair Value	156	331
Liability Derivatives Fair Value	(247)	(399)
Non-qualifying strategies | Interest rate swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	222	355
Net Derivatives Fair Value	0	29
Asset Derivatives Fair Value	1	32
Liability Derivatives Fair Value	(1)	(3)
Non-qualifying strategies | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	4,024	5,577
Net Derivatives Fair Value	(84)	(32)
Asset Derivatives Fair Value	153	297
Liability Derivatives Fair Value	(237)	(329)
Non-qualifying strategies | Credit default swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	222	355
Net Derivatives Fair Value	(7)	(65)
Asset Derivatives Fair Value	2	2
Liability Derivatives Fair Value	$ (9)	$ (67)