Gain Loss on Sale of Assets [Line Items]

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Definition

Fractional interest owned based on working interests or other economic arrangements of area spaced or assigned to productive wells.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (a)

+ Details

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

Energy measure of oil and natural gas production reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1204

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Acquisitions and Divestitures (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($) a Boe	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) a	Jun. 30, 2016 USD ($)
Acquisitions and Divestitures [Line Items]
Gain (loss) on disposition of assets, net	$ 194	$ 1	$ 205	$ 3
Proceeds from Sale of Productive Assets			$ 345	$ 2
Martin County [Member]
Acquisitions and Divestitures [Line Items]
Gain (loss) on disposition of assets, net	194
Goodwill, Written off Related to Sale of Business Unit	2
Proceeds from Sale of Productive Assets	$ 266
Gas and Oil Area, Developed, Net \| a	20,500		20,500
Production, Barrels of Oil Equivalents \| Boe	1,500
Permian Basin [Member]
Acquisitions and Divestitures [Line Items]
Gain (loss) on disposition of assets, net			$ 10
Proceeds from Sale of Productive Assets			$ 77