Discount Rate Of Natural Gas, Oil and Natural Gas Liquid Reserves

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Duration Average Quoted Price Including Impact Of Derivatives Calculate Ceiling Value Of Reserves

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Full Cost Ceiling Test, Price per Barrel

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Full Cost Ceiling Test, Price per Million British Thermal Units

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Natural Gas and Oil Properties [Line Items]

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Net Book Value Adjusted For Market Differentials

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Number of Hedge Positions Designated for Hedge Accounting

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Natural Gas and Oil Properties (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) derivative_position $ / bbl $ / MMBTU	Jun. 30, 2019 USD ($) derivative_position $ / bbl $ / MMBTU	Mar. 31, 2020 USD ($)
Natural Gas and Oil Properties [Line Items]
Natural gas, oil and NGL reserves discount			10.00%
Period of time needed to calculate ceiling value of reserves			12 months
Net book value adjusted for market differentials	$ 650		$ 650		$ 1,480
Impairments	655	$ 6	$ 2,134	$ 6
Number of hedge positions designated for hedge accounting \| derivative_position			0	0
Other Non-Core Assets
Natural Gas and Oil Properties [Line Items]
Impairments	$ 5		$ 5
Non-Core Leasehold
Natural Gas and Oil Properties [Line Items]
Disposal Group, Including Discontinued Operation, Consideration		$ 25		$ 25
Natural Gas
Natural Gas and Oil Properties [Line Items]
Full cost ceiling test, price per MMBtu (in dollars per MMBtu) \| $ / MMBTU			2.07	3.02
Oil
Natural Gas and Oil Properties [Line Items]
Full cost ceiling test, price per barrel (in dollars per bbl) \| $ / bbl			47.17	61.39
NGL
Natural Gas and Oil Properties [Line Items]
Full cost ceiling test, price per barrel (in dollars per bbl) \| $ / bbl			8.87	16.35