FINANCIAL INSTRUMENTS (Unsettled Derivatives) (Details) lb in Millions, $ in Millions	1 Months Ended	12 Months Ended
Apr. 30, 2020 lb	Dec. 31, 2021 USD ($) lb	Dec. 31, 2020 USD ($)
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		$ 77	$ 184
Derivative Liability, Fair Value, Gross Liability		28	21
Derivative Liability, Fair Value, Gross Asset		4	1
Derivative Asset, Fair Value, Gross Liability		4	1
Derivative Asset		73	183
Derivative Liability		24	20
Trade accounts receivable [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset		51	168
Derivative Liability		14	0
Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative Asset		12	15
Derivative Liability		0	0
Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivative Asset		10	0
Derivative Liability		10	20
Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		13	15
Derivative Liability, Fair Value, Gross Liability		1	0
Derivative Liability, Fair Value, Gross Asset		1	0
Derivative Asset, Fair Value, Gross Liability		1	0
Derivative Asset		12	15
Derivative Liability		0	0
Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		64	169
Derivative Liability, Fair Value, Gross Liability		27	21
Derivative Liability, Fair Value, Gross Asset		3	1
Derivative Asset, Fair Value, Gross Liability		3	1
Derivative Asset		61	168
Derivative Liability		24	20
Designated as Hedging Instrument [Member] \| Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		$ 12	15
Derivative, Nonmonetary Notional Amount, Mass \| lb		78
Designated as Hedging Instrument [Member] \| Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb	150
Derivatives Not Designated as Hedging Instruments \| Embedded Derivative Financial Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		$ 64	169
Derivative Liability, Fair Value, Gross Liability		$ 27	21
Derivatives Not Designated as Hedging Instruments \| Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative, Nonmonetary Notional Amount, Mass \| lb		2
Commodity Contract [Member] \| Derivatives Not Designated as Hedging Instruments \| Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		$ 1	0
Derivative Liability, Fair Value, Gross Liability		$ 1	$ 0

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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Nominal mass used to calculate payments on a derivative instrument.

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