Summary Of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Schedule of Revenue from Contracts with Customers Disaggregated Based on Type of Good or Service

The following table presents revenue from contracts with customers that are disaggregated based on the type of good or service.

	Three Months Ended March 31,
	2020		2019
Oil	$	662	$	659
Gas		70		138
NGL		75		122
Oil, gas and NGL revenues from contracts with customers		807		919
Oil, gas and NGL derivatives		720		(605	)
Upstream revenues		1,527		314
Oil		329		356
Gas		92		218
NGL		137		191
Total marketing revenues		558		765
Midstream revenues		2		—
Total marketing and midstream revenues from contracts with customers		560		765
Total revenues	$	2,087	$	1,079