SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Asset Impairments Recorded in Connection with Fair Value Assessment

The following table presents a summary of asset impairments recorded in connection with fair value assessments:

	For the Year Ended December 31,
	2020		2019		2018
	(In millions)
Oil and gas proved property	$	4,319	$	1,484	$	328
Gathering, processing, and transmission facilities	68		1,295		56
Equity method investment	—		—		113
Divested unproved properties and leasehold	—		149		10
Goodwill	87		—		—
Inventory and other	27		21		4
Total Impairments	$	4,501	$	2,949	$	511

Schedule of Allowance for Doubtful Accounts

The following table presents changes to the Company’s allowance for credit loss:

	For the Year Ended December 31,
	2020		2019		2018
	(In millions)
Allowance for credit loss at beginning of year	$	88	$	92	$	84
Additional provisions for the year	7		3		9
Uncollectible accounts written off, net of recoveries	—		(7)		(1)
Allowance for credit loss at end of year	$	95	$	88	$	92

Schedule of Non-cash Impairments of Proved and Unproved Properties

The following table represents non-cash impairments charges of the carrying value of the Company’s proved and unproved properties:

	For the Year Ended December 31,
	2020		2019		2018
	(In millions)
Proved properties:
U.S.	$	3,938	$	1,484	$	265
Egypt	374		—		63
North Sea	7		—		—
Total proved properties	$	4,319	$	1,484	$	328
Unproved properties:
U.S.	$	92	$	760	$	96
Egypt	8		8		—
North Sea	1		—		128
Total unproved properties	$	101	$	768	$	224

Schedule of Goodwill

The following presents the changes to goodwill for the years ended 2020, 2019, and 2018:

	Egypt		Total
	(In millions)
Goodwill at December 31, 2017	$	87	$	87
Impairments	—		—
Goodwill at December 31, 2018	87		87
Impairments	—		—
Goodwill at December 31, 2019	87		87
Impairments	(87)		(87)
Goodwill at December 31, 2020	$	—	$	—