DEBT AND FINANCING COSTS - Components of Financing Costs, Net (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Debt Disclosure [Abstract]
Interest expense		$ 113	$ 116	$ 344	$ 348
Amortization of deferred loan costs		3	2	7	5
Capitalized interest		(12)	(13)	(39)	(36)
Loss on extinguishment of debt	$ 1	0	0	1	0
Interest income		(3)	(3)	(13)	(6)
Financing costs, net		$ 101	$ 102	$ 300	$ 311