Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The following table shows revenue disaggregated by operating area and product type, for the periods presented:

	Successor
	Period from February 10, 2021 through December 31, 2021
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	1,370	$	—	$	1,370
Haynesville	—		998		—		998
Eagle Ford	1,354		179		179		1,712
Powder River Basin	202		75		44		321
Oil, natural gas and NGL revenue	$	1,556	$	2,622	$	223	$	4,401
Marketing revenue	$	1,158	$	908	$	197	$	2,263
	Predecessor
	Period from January 1, 2021 through February 9, 2021
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	119	$	—	$	119
Haynesville	—		53		—		53
Eagle Ford	159		17		17		193
Powder River Basin	20		7		6		33
Oil, natural gas and NGL revenue	$	179	$	196	$	23	$	398
Marketing revenue	$	141	$	78	$	20	$	239
	Year Ended December 31, 2020
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	631	$	—	$	631
Haynesville	—		362		—		362
Eagle Ford	1,202		129		97		1,428
Powder River Basin	170		41		20		231
Mid-Continent	55		25		13		93
Oil, natural gas and NGL revenue	$	1,427	$	1,188	$	130	$	2,745
Marketing revenue from contracts with customers	$	1,195	$	494	$	110	$	1,799
Other marketing revenue	67		3		—		70
Marketing revenue	$	1,262	$	497	$	110	$	1,869

	Year Ended December 31, 2019
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	856	$	—	$	856
Haynesville	—		620		—		620
Eagle Ford	2,010		185		135		2,330
Powder River Basin	369		77		32		478
Mid-Continent	164		44		25		233
Oil, natural gas and NGL revenue	$	2,543	$	1,782	$	192	$	4,517
Marketing revenue from contracts with customers	$	2,473	$	900	$	246	$	3,619
Other marketing revenue	311		41		—		352
Losses on marketing derivatives	—		(4)		—		(4)
Marketing revenue	$	2,784	$	937	$	246	$	3,967

Accounts receivable

Accounts receivable as of December 31, 2021 and 2020 are detailed below:

	Successor		Predecessor
	December 31, 2021		December 31, 2020
Oil, natural gas and NGL sales	$	922	$	589
Joint interest billings	158		119
Other	38		68
Allowance for doubtful accounts	(3)		(30)
Total accounts receivable, net	$	1,115	$	746