Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue - service revenue	$ 17,870	$ 7,024
Oil sales
Disaggregation of Revenue [Line Items]
Revenue - service revenue	8,808	2,871
NGL sales
Disaggregation of Revenue [Line Items]
Revenue - service revenue	1,707	490
Gas sales
Disaggregation of Revenue [Line Items]
Revenue - service revenue	988	269
Total oil and gas revenues
Disaggregation of Revenue [Line Items]
Revenue - service revenue	11,503	3,630
Sales of purchased oil
Disaggregation of Revenue [Line Items]
Revenue - service revenue	6,247	3,359
Sales of purchased gas
Disaggregation of Revenue [Line Items]
Revenue - service revenue	62	24
Sales of purchased diesel
Disaggregation of Revenue [Line Items]
Revenue - service revenue	58	11
Total sales of purchased commodities
Disaggregation of Revenue [Line Items]
Revenue - service revenue	$ 6,367	$ 3,394