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DERIVATIVES - Fair Value (Details) - Commodity Contracts - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Fair Value of Derivatives
Total derivatives	$ 0	$ 0
Other current assets, net
Fair Value of Derivatives
Gross Amounts Offset in the Balance Sheet	0	(10)
Other assets
Fair Value of Derivatives
Gross Amounts Offset in the Balance Sheet	0	0
Accrued liabilities
Fair Value of Derivatives
Gross Amounts Offset in the Balance Sheet	0	10
Gross Amounts Recognized at Fair Value
Fair Value of Derivatives
Total derivatives	17	35
Gross Amounts Recognized at Fair Value | Other current assets, net
Fair Value of Derivatives
Gross Amounts Recognized at Fair Value	15	49
Gross Amounts Recognized at Fair Value | Other assets
Fair Value of Derivatives
Gross Amounts Recognized at Fair Value	2	1
Gross Amounts Recognized at Fair Value | Accrued liabilities
Fair Value of Derivatives
Gross Amounts Recognized at Fair Value	0	(15)
Net Fair Value Presented in the Balance Sheet
Fair Value of Derivatives
Total derivatives	17	35
Net Fair Value Presented in the Balance Sheet | Other current assets, net
Fair Value of Derivatives
Net Fair Value Presented in the Balance Sheet	15	39
Net Fair Value Presented in the Balance Sheet | Other assets
Fair Value of Derivatives
Net Fair Value Presented in the Balance Sheet	2	1
Net Fair Value Presented in the Balance Sheet | Accrued liabilities
Fair Value of Derivatives
Net Fair Value Presented in the Balance Sheet	$ 0	$ (5)

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Fair value of liability associated with 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.

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