Disposal Group, Including Discontinued Operation, Assets Held-for-Sale, Fair Value Adjustment

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Disposal Group Including Discontinued Operation Costs And Other Deductions [Abstract]

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Disposal Group, Including Discontinued Operation, Costs And Other Deductions, Net

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Disposal Group Including Discontinued Operation Revenue And Other Income [Abstract]

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Disposal Group, Including Discontinued Operation, Taxes Other Than On Income

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Disposal Group, Including Discontinued Operation, Transportation And Marketing Expense

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of other expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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ACQUISITIONS, DISPOSITIONS AND OTHER TRANSACTIONS - SUMMARY OF REVENUE AND COSTS FROM DISCONTINUED OPERATIONS (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Costs and other deductions
Discontinued operations, net of tax		$ (15)	$ 0	$ 0
Anadarko's Africa Assets \| Disposed of by sale
Revenues and other income
Net sales	$ 739
Costs and other deductions
Oil and gas lease operating expense	81
Transportation expense	14
Taxes other than on income	133
Fair value adjustment on assets held for sale	244
Other	53
Total costs and other deductions	525
Income before income taxes	214
Income tax expense	(229)
Discontinued operations, net of tax	$ (15)