OTHER BALANCE SHEET INFORMATION - Other Current Assets (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Other current assets
Amounts due from joint interest partners	$ 62	$ 47
Fair value of derivative contracts	9	6
Prepaid expenses	18	16
Greenhouse gas allowances	38	31
Margin deposits	12	12
Other	7	9
Other current assets	$ 146	$ 121

Collateral On Natural Gas Purchases, Current

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Prepaid Green House Gas Allowances, Current

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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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Amount of current assets classified as other.

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Amount of other miscellaneous assets expected to be realized or consumed within one year or operating cycle, if longer.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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