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Inventories
12 Months Ended
Dec. 31, 2022
Inventory Disclosure [Abstract]  
Inventories InventoriesCrude oil and natural gas liquids are recorded at weighted average cost and carried at the lower of cost or net realizable value. Supplies and other items consist principally of tubular goods and equipment which are valued at weighted average cost and reviewed periodically for obsolescence or impairment when market conditions indicate.
December 31,
(In millions)20222021
Crude oil and natural gas liquids$15 $
Supplies and other items110 69 
Inventories$125 $77