DERIVATIVE INSTRUMENTS - Fair Value and Notional Amounts of Derivatives With Counterparty Credit Risk (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	$ 23,943	$ 22,475
Asset Derivatives Fair Value	591	488
Liability Derivatives Fair Value	(240)	(837)
AA
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	161	161
Asset Derivatives Fair Value	3	1
Liability Derivatives Fair Value	(4)	(7)
A
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Notional Amount of Derivatives	23,782	22,314
Asset Derivatives Fair Value	588	487
Liability Derivatives Fair Value	$ (236)	$ (830)