INCOME TAXES - Net Deferred Tax Liability (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Deferred income	$ 0	$ 13
U.S. and state net operating losses	1,633	1,230
Capital losses	636	620
Foreign net operating losses	0	6
Tax credits and other tax incentives	39	28
Foreign tax credits	2,241	2,427
Accrued expenses and liabilities	117	110
Asset retirement obligation	649	629
Equity investments	4	0
Net interest expense limitation	65	0
Other	97	42
Total deferred tax assets	5,481	5,105
Valuation allowance	(3,947)	(3,816)	$ (5,401)	$ (5,434)
Net deferred tax assets	1,534	1,289
Deferred tax liabilities:
Deferred income	10	0
Equity investments	0	18
Investment in Altus Midstream LP	73	0
Property and equipment	1,747	1,798
Other	4	0
Total deferred tax liabilities	1,834	1,816
Net deferred income tax liability	$ 300	$ 527