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, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	$ 24,012	$ 22,475
Net Derivatives Fair Value	(701)	(349)
Asset Derivatives Fair Value	541	488
Liability Derivatives Fair Value	(1,242)	(837)
Other assets
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	5,454	5,308
Net Derivatives Fair Value	541	488
Asset Derivatives Fair Value	541	488
Liability Derivatives Fair Value	0	0
Other liabilities
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	18,558	17,167
Net Derivatives Fair Value	(1,242)	(837)
Asset Derivatives Fair Value	0	0
Liability Derivatives Fair Value	(1,242)	(837)
Foreign currency swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	519	445
Liability Derivatives Fair Value	(189)	(218)
Foreign currency forwards
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	7	17
Liability Derivatives Fair Value	(979)	(582)
Foreign currency options
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	1	4
Liability Derivatives Fair Value	(8)	(1)
Interest rate swaptions
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	14	20
Liability Derivatives Fair Value	(65)	(32)
Credit default swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value		1
Liability Derivatives Fair Value	(1)	(4)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value		1
Cash flow hedges
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	75	127
Net Derivatives Fair Value	(6)	3
Asset Derivatives Fair Value	0	3
Liability Derivatives Fair Value	(6)	0
Cash flow hedges | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	75	75
Net Derivatives Fair Value	(6)	3
Asset Derivatives Fair Value	0	3
Liability Derivatives Fair Value	(6)	0
Cash flow hedges | Interest rate swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount		52
Net Derivatives Fair Value		0
Asset Derivatives Fair Value		0
Liability Derivatives Fair Value		0
Fair value hedges
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	18,603	15,749
Net Derivatives Fair Value	(1,036)	(594)
Asset Derivatives Fair Value	15	20
Liability Derivatives Fair Value	(1,051)	(614)
Fair value hedges | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	14,514	11,249
Net Derivatives Fair Value	(979)	(582)
Asset Derivatives Fair Value	0	0
Liability Derivatives Fair Value	(979)	(582)
Fair value hedges | Foreign currency options
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	750
Net Derivatives Fair Value	(7)
Asset Derivatives Fair Value	1
Liability Derivatives Fair Value	(8)
Fair value hedges | Interest rate swaptions
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	3,339	4,500
Net Derivatives Fair Value	(50)	(12)
Asset Derivatives Fair Value	14	20
Liability Derivatives Fair Value	(64)	(32)
Net investment hedge
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	91	451
Net Derivatives Fair Value	7	20
Asset Derivatives Fair Value	7	21
Liability Derivatives Fair Value	0	(1)
Net investment hedge | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	91	356
Net Derivatives Fair Value	7	17
Asset Derivatives Fair Value	7	17
Liability Derivatives Fair Value	0	0
Net investment hedge | Foreign currency options
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount		95
Net Derivatives Fair Value		3
Asset Derivatives Fair Value		4
Liability Derivatives Fair Value		(1)
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	5,243	6,148
Net Derivatives Fair Value	334	222
Asset Derivatives Fair Value	519	444
Liability Derivatives Fair Value	(185)	(222)
Non-qualifying strategies | Foreign currency swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	5,121	5,829
Net Derivatives Fair Value	336	224
Asset Derivatives Fair Value	519	442
Liability Derivatives Fair Value	(183)	(218)
Non-qualifying strategies | Interest rate swaptions
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	31
Net Derivatives Fair Value	(1)
Asset Derivatives Fair Value	0
Liability Derivatives Fair Value	(1)
Non-qualifying strategies | Credit default swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount	91	207
Net Derivatives Fair Value	(1)	(3)
Asset Derivatives Fair Value	0	1
Liability Derivatives Fair Value	(1)	(4)
Non-qualifying strategies | Interest rate swaps
Derivatives, Fair Value [Line Items]
Net Derivatives Notional Amount		112
Net Derivatives Fair Value		1
Asset Derivatives Fair Value		1
Liability Derivatives Fair Value		$ 0