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Property, Plant and Equipment (Tables)
3 Months Ended
Mar. 31, 2022
Property, Plant and Equipment [Abstract]  
Net Changes in Capitalized Exploratory Well Costs
The following table discloses the net changes in capitalized exploratory well costs pending determination of proved reserves during the three months ended March 31, 2022 (in millions):

Balance at January 1, 2022$681 
Additions to capitalized exploratory well costs pending the determination of proved reserves120 
Balance at March 31, 2022$801