Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Additional Information (Detail)

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DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Collateral received under contractual provisions $ 171 $ 171
Aggregate fair value additional collateral 106 106
Maximum term over hedging exposures to the variability of cash flow   37 years
Pre-tax losses related to cash flow hedges that are currently deferred in AOCI and are expected to be reclassified to income within twelve months 66  
Derivative, Collateral, Right to Reclaim Cash $ 24 $ 24