Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2021

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 six months ended June 30, 2021 (in millions):

Balance at January 1, 2021	$	459
Additions to capitalized exploratory well costs pending the determination of proved reserves	72
Balance at June 30, 2021	$	531