Revenues and Accounts Receivable - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue
Total revenues	$ 11,602	$ 16,359	$ 23,943	$ 30,053
Operating Segments
Disaggregation of Revenue
Revenues from contracts with customers	11,549	16,367	23,960	30,348
Other revenues	127	143	164	(25)
Total revenues	11,676	16,510	24,124	30,323
Operating Segments | Crude Oil
Disaggregation of Revenue
Revenues from contracts with customers	11,286	15,841	23,008	28,943
Other revenues	9	99	45	76
Total revenues	11,295	15,940	23,053	29,019
Operating Segments | NGL
Disaggregation of Revenue
Revenues from contracts with customers	263	526	952	1,405
Other revenues	118	44	119	(101)
Total revenues	381	570	1,071	1,304
Intersegment revenues elimination
Disaggregation of Revenue
Total revenues	$ (74)	$ (151)	$ (181)	$ (270)