REVENUE RECOGNITION (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of disaggregated revenue

The following table provides disaggregated revenue for the years ended December 31, 2019, 2018 and 2017:

	2019			2018		2017
Oil and natural gas sales:	(in millions)
Oil	$	1,884		$	2,110	$	1,549
NGLs	179			260		210
Natural gas	207			220		177
	2,270			2,590		1,936
Other revenue:
Electricity	112			111		125
Marketing, trading and other	311			361		35
Interest income	—			1		—
	423			473		160
Net derivative (loss) gain from commodity contracts	(59		)	1		(90		)
Total revenues	$	2,634		$	3,064	$	2,006