DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012 Entity
Derivative [Line Items]
Number of counter parties	17
Realization of gains and losses on hedges in future earnings	Mid-2014
Net gain included in accumulated other comprehensive income (loss), before tax applied to next twelve months	$ 37
Net gain included in accumulated other comprehensive income (loss), after tax	$ 31