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	Jun. 30, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	$ 20,413	$ 13,370
Net Derivatives Fair Value	173	(589)
Asset Derivatives Fair Value	620	345
Liability Derivatives Fair Value	(447)	(934)
Other assets
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	11,928	2,585
Net Derivatives Fair Value	620	345
Asset Derivatives Fair Value	620	345
Liability Derivatives Fair Value	0	0
Other liabilities
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	8,485	10,785
Net Derivatives Fair Value	(447)	(934)
Asset Derivatives Fair Value	0	0
Liability Derivatives Fair Value	(447)	(934)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	22	32
Liability Derivatives Fair Value	(1)	(3)
Foreign currency swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	381	311
Liability Derivatives Fair Value	(284)	(329)
Foreign currency forwards
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	178
Liability Derivatives Fair Value	(94)	(535)
Foreign currency options
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	37
Liability Derivatives Fair Value	(22)
Credit default swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	2	2
Liability Derivatives Fair Value	(46)	(67)
Cash flow hedges
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	131	139
Net Derivatives Fair Value	6	14
Asset Derivatives Fair Value	6	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	6	14
Asset Derivatives Fair Value	6	14
Liability Derivatives Fair Value	0	0
Fair value hedges
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	11,517	6,944
Net Derivatives Fair Value	88	(535)
Asset Derivatives Fair Value	175	0
Liability Derivatives Fair Value	(87)	(535)
Fair value hedges | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	11,517	6,944
Net Derivatives Fair Value	88	(535)
Asset Derivatives Fair Value	175	0
Liability Derivatives Fair Value	(87)	(535)
Net investment hedge
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	3,497
Net Derivatives Fair Value	234
Asset Derivatives Fair Value	295
Liability Derivatives Fair Value	(61)
Net investment hedge | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	1,950
Net Derivatives Fair Value	223
Asset Derivatives Fair Value	270
Liability Derivatives Fair Value	(47)
Net investment hedge | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	634
Net Derivatives Fair Value	(4)
Asset Derivatives Fair Value	3
Liability Derivatives Fair Value	(7)
Net investment hedge | Foreign currency options
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	913
Net Derivatives Fair Value	15
Asset Derivatives Fair Value	22
Liability Derivatives Fair Value	(7)
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	5,268	6,287
Net Derivatives Fair Value	(155)	(68)
Asset Derivatives Fair Value	144	331
Liability Derivatives Fair Value	(299)	(399)
Non-qualifying strategies | Interest rate swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	327	355
Net Derivatives Fair Value	21	29
Asset Derivatives Fair Value	22	32
Liability Derivatives Fair Value	(1)	(3)
Non-qualifying strategies | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	4,006	5,577
Net Derivatives Fair Value	(132)	(32)
Asset Derivatives Fair Value	105	297
Liability Derivatives Fair Value	(237)	(329)
Non-qualifying strategies | Foreign currency options
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	608
Net Derivatives Fair Value	0
Asset Derivatives Fair Value	15
Liability Derivatives Fair Value	(15)
Non-qualifying strategies | Credit default swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	327	355
Net Derivatives Fair Value	(44)	(65)
Asset Derivatives Fair Value	2	2
Liability Derivatives Fair Value	$ (46)	$ (67)