PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Recognized gain for plan amendment	$ 0		$ 0	$ 0	$ (103)
Increase in fair value of pension assets		56
Increase in projected benefit obligation		55
Net effect increase in the funded status		1
Canadian Registered and Non registered Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2013				79
U.S. Non-Qualified Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2013				19
U.S. Qualified Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2013				0
U.S. and Canadian Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2013				$ 37