Total amount before tax of gain (loss) on the sale or disposal and write down of a disposal group.

No definition available.

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

+ References

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- Definition

Amount classified as goodwill attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

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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, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

+ References

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer.

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- Definition

Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities.

+ References

No definition available.

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Acquisitions, Divestitures, and Assets Held for Sale - Divestitures and Assets Held for Sale (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestitures			$ 1,281	$ 1,248
Net losses from divestitures and assets held for sale	$ 414	$ 578	516	$ 1,003
Held for Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Long-term assets associated with assets held for sale	1,100		1,100
Goodwill associated with assets held for sale	184		184
Long-term liabilities associated with assets held for sale	44		44
Oil and Gas Exploration and Production and Midstream Reporting Segment [Member] \| Certain U.S. Onshore West Texas Assets [Member] \| Asset Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestitures			223
Gain (loss) on divestitures			(50)
Oil and Gas Exploration and Production and Midstream Reporting Segment [Member] \| Certain Onshore Domestic East Texas Assets [Member] \| Held for Sale [Member] \| Fair Value, Inputs, Level 2 [Member] \| Market Approach Valuation Technique [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on asset held for sale	$ 355
Oil and Gas Exploration and Production Reporting Segment [Member] \| Certain U.S. Onshore East Texas/Louisiana Assets [Member] \| Asset Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestitures			199
Gain (loss) on divestitures			(41)
Oil and Gas Exploration and Production Reporting Segment [Member] \| Certain U.S. Onshore Wyoming Assets [Member] \| Asset Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestitures			588
Gain (loss) on divestitures			$ (59)