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Exploration Expense	12 Months Ended
	Dec. 31, 2022
Extractive Industries [Abstract]
Exploration Expense	20. Exploration Expense During the 2022 Successor Period, exploration expense charges of $23 million were primarily the result of non-cash impairment charges in unproved properties of $8 million, $6 million of charges related to dry hole expense and $6 million of geological and geophysical expense. We did not have material exploration expenses during the 2021 Successor Period or 2021 Predecessor Period. The exploration expense charges of $427 million during the 2020 Predecessor Period were primarily the result of non-cash impairment charges in unproved properties of $411 million, primarily in our Eagle Ford, Haynesville, Powder River Basin and Mid-Continent operating areas. Unproved natural gas and oil properties are periodically assessed for impairment by considering future drilling and exploration plans, results of exploration activities, commodity price outlooks, planned future sales and expiration of all or a portion of the projects.

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