Business combination consideration transferred exchange ratio.

No definition available.

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- Definition

Cash payments for divestitures per quarter.

+ References

No definition available.

+ Details

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- Definition

Summary Of Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

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- Definition

Area of land held.

+ References

No definition available.

+ Details

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- Definition

Date when the business acquisition agreement was executed, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

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- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(1)(a))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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- Details

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- Details

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- Details

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Summary Of Significant Accounting Policies (Narrative) (Details) $ in Millions		3 Months Ended	9 Months Ended
	Jan. 07, 2021	Sep. 30, 2021 USD ($) a	Sep. 30, 2021 USD ($) a	Sep. 30, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Conversion of common stock into right to recieve per share	0.5165		0.5165
Restricted cash		$ 177	$ 177	$ 190
Barnett Shale [Member]
Summary Of Significant Accounting Policies [Line Items]
Restricted cash		165	$ 165
Cash payments for divestitures		$ 10
Devon and WPX Agreement [Member]
Summary Of Significant Accounting Policies [Line Items]
Date of agreement	Jan. 07, 2021		Jan. 07, 2021
Conversion of common stock into right to recieve per share	0.5165
WPX and Howard Energy Partners [Member]
Summary Of Significant Accounting Policies [Line Items]
Voting interest in the join venture legal entity		50.00%	50.00%
Catalyst [Member]
Summary Of Significant Accounting Policies [Line Items]
Area of land \| a		50,000	50,000