Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

Disaggregated revenue from contracts with purchasers by product type is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(in millions)
Oil sales	$	2,477	$	724	$	6,043	$	2,101
NGL sales	515		129		1,135		344
Gas sales	290		69		609		172
Total oil and gas revenues	3,282		922		7,787		2,617
Sales of purchased oil	1,642		934		4,422		2,373
Sales of purchased gas	22		1		38		18
Sales of purchased diesel	15		—		47		—
Total sales of purchased commodities	1,679		935		4,507		2,391
Total revenue from contracts with purchasers	$	4,961	$	1,857	$	12,294	$	5,008