Revenues and Accounts Receivable - Segment Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue
Total revenues	$ 16,359	$ 9,930	$ 30,053	$ 18,313
Operating Segments
Disaggregation of Revenue
Revenue from contracts with customers	16,367	10,233	30,348	18,980
Other items in revenues	143	(224)	(25)	(479)
Total revenues	16,510	10,009	30,323	18,501
Operating Segments | Crude Oil
Disaggregation of Revenue
Revenue from contracts with customers	15,841	9,852	28,943	17,798
Other items in revenues	99	(73)	76	(166)
Total revenues	15,940	9,779	29,019	17,632
Operating Segments | NGL
Disaggregation of Revenue
Revenue from contracts with customers	526	381	1,405	1,182
Other items in revenues	44	(151)	(101)	(313)
Total revenues	570	230	1,304	869
Intersegment revenue elimination
Disaggregation of Revenue
Total revenues	$ (151)	$ (79)	$ (270)	$ (188)