DEBT AND FINANCING COSTS - Components of Financing Costs, Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Debt Disclosure [Abstract]
Interest expense	$ 109	$ 110	$ 216	$ 222
Amortization of deferred loan costs	1	1	3	6
Capitalized interest	(9)	(13)	(17)	(25)
Loss on extinguishment of debt	75	0	75	0
Interest income	(3)	(4)	(7)	(10)
Financing costs, net	$ 173	$ 94	$ 270	$ 193