OTHER OPERATING INCOME, NET - Items Included in Other Operating Income, Net (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Gain on disposition of non-strategic assets	$ (1)	$ (1)	$ (25)	$ (14)
Foreign exchange (gains) losses, net	13	(2)	15	6
Land management income	(9)	(7)	(25)	(20)
Other, net	(3)	6	(15)	(4)
Total other operating income, net	(23)	(4)	(163)	(32)
U.S. and Canadian Other Postretirement Plans
Gain on postretirement plan amendment (Note 7)	$ (23)	$ 0	$ (113)	$ 0