v3.20.2
Suspended Wells - Textual (Details)
$ in Millions
9 Months Ended
Sep. 30, 2020
USD ($)
Suspended Wells [Abstract]  
Capitalized cost of suspended wells $ 711
Increase (decrease) in capitalized cost of suspended wells 309
Capitalized Exploratory Well Cost, Charged to Dry Hole Expense $ 20
Number of wells charged to dry hole expense one