Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Derivative Instruments, Gain (Loss) (Details)

v3.21.1
Derivative Instruments - Derivative Instruments, Gain (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Cost of sales [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative gain (loss), net [1] $ (2) $ 21
[1] Does not include the realized value associated with derivative instruments that settle through physical delivery. Fair value fluctuations associated with commodity derivative activities are classified and presented consistently with the item economically hedged and the nature and intent of the derivative instrument.