FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on a recurring basis

The following tables provide fair value measurement information for assets and liabilities that are measured on a recurring basis:

millions	Fair Value Measurements Using						Netting and Collateral		Total Fair Value
Embedded derivatives	Level 1		Level 2		Level 3
December 31, 2020
Accrued liabilities	$	—	$	64	$	—	$	—	$	64
December 31, 2019
Accrued liabilities	$	—	$	40	$	—	$	—	$	40
Deferred credits and other liabilities - other	$	—	$	49	$	—	$	—	$	49

Significant impairment and other charges measured on nonrecurring basis

The table below summarizes the significant impairments and other charges incurred to measure assets to their fair value on a nonrecurring basis throughout the year ended December 31, 2020:

millions	Total Fair Value
Asset impairments and other charges
Goodwill	$	1,153
Oil and gas properties - proved	$	2,436
Oil and gas properties - unproved	$	4,591
Oil and gas properties - discontinued operations	$	2,191
WES equity investment	$	2,673