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Income Taxes (Narrative) (Details) $ in Millions | Sep. 30, 2021 USD ($)
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Income Tax [Line Items] |
Deferred income taxes | $ 249
U.S Federal [Member] |
Income Tax [Line Items] |
Operating Loss Carryforwards | 1,800
WPX Merger [Member] |
Income Tax [Line Items] |
Deferred income taxes | $ 249

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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