Disposal Group, Including Discontinued Operation, Consideration, Asset Retirement Obligation Assumed

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- Definition

Joint Venture Agreement, Additional Cash Payment To Receive Upon Achieving Of First Production

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Joint Venture Agreement, Future Consideration Term, Appraisal And Development Capital Cap

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Joint Venture Agreement, Percentage Of Consideration Carried On Appraisal And Development Capital

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- Definition

Joint Venture Agreement, Percentage Of Costs Incurred Reimbursed

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- Definition

Number Of Joint Venture Equity Options

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Number Of Joint Venture Equity Options Exercised

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- Definition

Proceeds Expected To Receive From Joint Venture

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Proceeds Received From Joint Venture

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Proceeds Received From Joint Venture, For Reimbursement Of Cost Incurred

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties.

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The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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- Definition

The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale.

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The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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ACQUISITIONS AND DIVESTITURES ACQUISITIONS AND DIVESTITURES - 2019 Activity (Details)	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2019 USD ($) equity_option	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) equity_option	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Proceeds from sale of oil and gas properties				$ 718,000,000	$ 138,000,000	$ 758,000,000
Asset impairments for property and equipment		$ 9,000,000
Property and equipment, net	$ 14,158,000,000			14,158,000,000	18,421,000,000	17,759,000,000
Leasehold and property acquisitions amount				$ 40,000,000	133,000,000	178,000,000
Number of joint venture equity options exercised \| equity_option	4			4
Number of joint venture equity options \| equity_option	5			5
Oklahoma And Texas \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Proceeds from sale of oil and gas properties		322,000,000
Asset retirement obligation assumed		49,000,000
Asset impairments for property and equipment			$ 240,000,000	$ 255,000,000
Gain (loss) on sale of oil and gas properties		$ (7,000,000)
OKLAHOMA \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Proceeds from sale of oil and gas properties			223,000,000
Gain (loss) on sale of oil and gas properties			17,000,000
Property and equipment, net			$ 206,000,000
Permian Region \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Proceeds from sale of oil and gas properties				73,000,000
Gain (loss) on sale of oil and gas properties				33,000,000
North America Onshore Regions
Business Acquisition [Line Items]
Leasehold and property acquisitions amount				$ 40,000,000	$ 133,000,000	$ 188,000,000
Block 58 Offshore Suriname
Business Acquisition [Line Items]
Ownership percentage by noncontrolling owners	50.00%			50.00%
Proceeds from Joint Venture Agreement	$ 100,000,000
Proceeds from Joint Venture Agreement, for reimbursement of cost incurred	$ 75,000,000
Percentage of costs incurred reimbursed per Joint Venture Agreement	50.00%
Proceeds expected to receive from Joint Venture	$ 5,000,000,000			$ 5,000,000,000
Carrying cash consideration	$ 7,500,000,000			$ 7,500,000,000
Percentage of consideration carried on appraisal and development capital	25.00%			25.00%
Additional cash payment to receive upon achieving first production				$ 75,000,000