NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Other Current Assets (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Other current assets
Amounts due from joint interest partners, net	$ 42,000,000	$ 70,000,000
Derivative assets	0	39,000,000
Prepaid expenses	20,000,000	19,000,000
Other	1,000,000	2,000,000
Other current assets, net	63,000,000	130,000,000
Allowance for credit losses	$ 0	$ 19,000,000

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Amount of allowance for credit loss on accounts receivable.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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For an unclassified balance sheet, amounts due from an entity in which the reporting entity shares joint control with another party or group.

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