SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table describes changes to the Company’s allowance for doubtful accounts for 2018, 2017, and 2016:

	2018			2017			2016
	(In millions)
Allowance for doubtful accounts at beginning of year	$	84		$	93		$	103
Additional provisions for the year	9			4			14
Uncollectible accounts written off net of recoveries	(1		)	(13		)	(24		)
Allowance for doubtful accounts at end of year	$	92		$	84		$	93

Schedule of Non-cash Impairments of Proved and Unproved Property and Equipment

The following table represents non-cash impairments of the carrying value of the Company’s proved and unproved property and equipment for 2018, 2017, and 2016:

	For the Year Ended December 31,
	2018		2017		2016
	(In millions)
Proved Properties:
U.S.	$	265	$	—	$	61
Canada	—		—		366
Egypt	63		—		—
Total Proved	$	328	$	—	$	427
Unproved Properties:
U.S.	$	96	$	244	$	200
Canada	—		2		72
North Sea	128		—		—
Total Unproved	$	224	$	246	$	272