Revenues and Accounts Receivable - Segment Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 48,712	$ 57,342	$ 42,078
Operating Segments
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	48,999	57,473	42,949
Other revenues	110	368	(511)
Total revenues	49,109	57,841	42,438
Operating Segments | Crude Oil
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	47,146	54,929	40,550
Other revenues	28	151	(80)
Total revenues	47,174	55,080	40,470
Operating Segments | NGL
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	1,853	2,544	2,399
Other revenues	82	217	(431)
Total revenues	1,935	2,761	1,968
Intersegment revenues elimination
Disaggregation of Revenue [Line Items]
Total revenues	$ (397)	$ (499)	$ (360)