Disposal Group, Including Discontinued Operation, Percentage of Oil and Gas Property Disposed

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- Definition

Surety Bond Exposure, Expense

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Surety Bond Exposure, Liability

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of.

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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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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- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of.

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- Definition

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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Dispositions - International Segment (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended				9 Months Ended
	Jul. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of oil and gas property and equipment						$ (84)	$ 1,249
Surety bond exposure, liability		$ 6				6
Surety bond exposure, expense		6
Income before income taxes		175		$ 357		395	1,021
International E&P \| U.K. Business \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of oil and gas property and equipment	$ 95
Cash, cash equivalents and working capital								$ 345
Net gain (loss) on disposal of assets		14
Income before income taxes		$ 0		$ 132		$ 37	$ 239
International E&P \| Atrush Block in Kurdistan \| Disposal Group, Held-for-sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, assets								58
Disposal group, liabilities								$ 17
International E&P \| Atrush Block in Kurdistan \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of oil and gas property and equipment			$ 63
Percentage of oil and gas property disposed		15.00%
International E&P \| Marathon Oil Libya Limited \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of oil and gas property and equipment					$ 450
Net gain (loss) on disposal of assets					$ 255
Percentage of oil and gas property disposed					16.33%