Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue - service revenue	$ 6,057	$ 4,961	$ 19,210	$ 12,294
Oil sales
Disaggregation of Revenue [Line Items]
Revenue - service revenue	3,069	2,477	9,594	6,043
NGL sales
Disaggregation of Revenue [Line Items]
Revenue - service revenue	569	515	1,783	1,135
Gas sales
Disaggregation of Revenue [Line Items]
Revenue - service revenue	586	290	1,417	609
Total oil and gas revenues
Disaggregation of Revenue [Line Items]
Revenue - service revenue	4,224	3,282	12,794	7,787
Sales of purchased oil
Disaggregation of Revenue [Line Items]
Revenue - service revenue	1,805	1,642	6,356	4,422
Sales of purchased gas
Disaggregation of Revenue [Line Items]
Revenue - service revenue	28	22	60	38
Sales of purchased diesel
Disaggregation of Revenue [Line Items]
Revenue - service revenue	0	15	0	47
Total sales of purchased commodities
Disaggregation of Revenue [Line Items]
Revenue - service revenue	$ 1,833	$ 1,679	$ 6,416	$ 4,507