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Acquisitions and Divestitures (Schedule of Pro Forma Adjustments to Confirm Acquisition) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Total revenues	$ 19,169	$ 12,206	$ 4,828
Net loss	$ 6,037	$ 2,833	$ (2,671)
Basic net loss per share	$ 9.15	$ 4.20	$ (7.12)
Devon and WPX Agreement [Member] | Pro Forma [Member]
Business Acquisition [Line Items]
Total revenues			$ 7,261
Net loss			$ (3,438)
Basic net loss per share			$ (5.16)

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-Subparagraph (SX 210.13-01(a)(4)(ii))
-URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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