FINANCIAL INSTRUMENTS (Schedule of Fair Values of Derivative Instruments) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 632	$ 338
Counterparty and Cash Collateral Netting	(443)	(165)
Derivative Asset	(189)	(173)
Derivative Liability, Fair Value, Gross Liability	715	521
Counterparty and Cash Collateral Netting	(465)	(171)
Derivative Liability	(250)	(350)
Derivative Liability, Collateral, Right to Reclaim Cash, Offset	71	7
Derivative Asset, Collateral, Obligation to Return Cash, Offset	0	0
Derivatives designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	599	219
Counterparty and Cash Collateral Netting	(421)	(139)
Derivative Asset	(178)	(80)
Derivative Liability, Fair Value, Gross Liability	599	299
Counterparty and Cash Collateral Netting	(440)	(143)
Derivative Liability	(159)	(156)
Derivatives designated as hedging instruments: | Foreign currency | Deferred charges and other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	117
Counterparty and Cash Collateral Netting	(89)
Derivative Asset	(28)
Derivatives designated as hedging instruments: | Foreign currency | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	24	39
Counterparty and Cash Collateral Netting	(13)	(19)
Derivative Asset	(11)	(20)
Derivatives designated as hedging instruments: | Foreign currency | Accrued and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	15	93
Counterparty and Cash Collateral Netting	(13)	(19)
Derivative Liability	(2)	(74)
Derivatives designated as hedging instruments: | Foreign currency | Other noncurrent obligations
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	90
Counterparty and Cash Collateral Netting	(89)
Derivative Liability	(1)
Derivatives designated as hedging instruments: | Commodities | Deferred charges and other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	9	31
Counterparty and Cash Collateral Netting	(2)	(8)
Derivative Asset	(7)	(23)
Derivatives designated as hedging instruments: | Commodities | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	305	146
Counterparty and Cash Collateral Netting	(173)	(109)
Derivative Asset	(132)	(37)
Derivatives designated as hedging instruments: | Commodities | Accrued and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	267	151
Counterparty and Cash Collateral Netting	(192)	(112)
Derivative Liability	(75)	(39)
Derivatives designated as hedging instruments: | Commodities | Other noncurrent obligations
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	2	48
Counterparty and Cash Collateral Netting	(2)	(9)
Derivative Liability	0	(39)
Derivatives not designated as hedging instruments:
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	33	119
Counterparty and Cash Collateral Netting	(22)	(26)
Derivative Asset	(11)	(93)
Derivative Liability, Fair Value, Gross Liability	116	222
Counterparty and Cash Collateral Netting	(25)	(28)
Derivative Liability	(91)	(194)
Derivatives not designated as hedging instruments: | Foreign currency | Deferred charges and other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1
Counterparty and Cash Collateral Netting	(1)
Derivative Asset	0
Derivatives not designated as hedging instruments: | Foreign currency | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	23	74
Counterparty and Cash Collateral Netting	(16)	(25)
Derivative Asset	(7)	(49)
Derivatives not designated as hedging instruments: | Foreign currency | Accrued and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	31	35
Counterparty and Cash Collateral Netting	(16)	(25)
Derivative Liability	(15)	(10)
Derivatives not designated as hedging instruments: | Foreign currency | Other noncurrent obligations
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	1
Counterparty and Cash Collateral Netting	(1)
Derivative Liability	0
Derivatives not designated as hedging instruments: | Commodities | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	8	4
Counterparty and Cash Collateral Netting	(5)	(1)
Derivative Asset	(3)	(3)
Derivatives not designated as hedging instruments: | Commodities | Accrued and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	25	9
Counterparty and Cash Collateral Netting	(8)	(3)
Derivative Liability	(17)	(6)
Fair Value, Inputs, Level 2 [Member] | Derivatives designated as hedging instruments: | Interest rates 6 | Deferred charges and other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	130
Counterparty and Cash Collateral Netting	(130)
Derivative Asset	0
Fair Value, Inputs, Level 2 [Member] | Derivatives designated as hedging instruments: | Interest rates 6 | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	14	3
Counterparty and Cash Collateral Netting	(14)	(3)
Derivative Asset	0	0
Fair Value, Inputs, Level 2 [Member] | Derivatives designated as hedging instruments: | Interest rates 6 | Accrued and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	33	7
Counterparty and Cash Collateral Netting	(14)	(3)
Derivative Liability	(19)	(4)
Fair Value, Inputs, Level 2 [Member] | Derivatives designated as hedging instruments: | Interest rates 6 | Other noncurrent obligations
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	192
Counterparty and Cash Collateral Netting	(130)
Derivative Liability	(62)
Fair Value, Inputs, Level 2 [Member] | Derivatives not designated as hedging instruments: | Interest rates 6 | Deferred charges and other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		41
Counterparty and Cash Collateral Netting		0
Derivative Asset		(41)
Fair Value, Inputs, Level 2 [Member] | Derivatives not designated as hedging instruments: | Interest rates 6 | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	1
Counterparty and Cash Collateral Netting	0
Derivative Asset	(1)
Fair Value, Inputs, Level 2 [Member] | Derivatives not designated as hedging instruments: | Interest rates 6 | Accrued and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	59
Counterparty and Cash Collateral Netting	0
Derivative Liability	$ (59)
Fair Value, Inputs, Level 2 [Member] | Derivatives not designated as hedging instruments: | Interest rates 6 | Other noncurrent obligations
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability		178
Counterparty and Cash Collateral Netting		0
Derivative Liability		$ (178)