Segment Information - Segment Financial Data (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)
Segment Reporting Information
Operating segments number | segment			2
Reportable segments number | segment			2
Revenues:
Revenues	$ 11,602	$ 16,359	$ 23,943	$ 30,053
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Equity earnings in unconsolidated entities	89	104	178	201
Segment Adjusted EBITDA	591	614	1,300	1,227
Maintenance capital expenditures	62	43	109	70
Product sales revenues
Revenues:
Revenues	11,201	16,007	23,145	29,388
Services revenues
Revenues:
Revenues	401	352	798	665
Operating Segments
Revenues:
Revenues	11,676	16,510	24,124	30,323
Intersegment Revenues Elimination
Revenues:
Revenues	(74)	(151)	(181)	(270)
Intersegment Revenues Elimination | Product sales revenues
Revenues:
Revenues	(70)	(143)	(170)	(254)
Intersegment Revenues Elimination | Services revenues
Revenues:
Revenues	(4)	(8)	(11)	(16)
Crude Oil
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Equity earnings in unconsolidated entities	89	104	178	201
Segment Adjusted EBITDA	529	494	1,046	946
Maintenance capital expenditures	36	25	67	45
Crude Oil | Operating Segments
Revenues:
Revenues	11,295	15,940	23,053	29,019
Crude Oil | Operating Segments | Product sales revenues
Revenues:
Revenues	10,925	15,625	22,333	28,435
Crude Oil | Operating Segments | Services revenues
Revenues:
Revenues	370	315	720	584
NGL
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Segment Adjusted EBITDA	62	120	254	281
Maintenance capital expenditures	26	18	42	25
NGL | Operating Segments
Revenues:
Revenues	381	570	1,071	1,304
NGL | Operating Segments | Product sales revenues
Revenues:
Revenues	346	525	982	1,207
NGL | Operating Segments | Services revenues
Revenues:
Revenues	$ 35	$ 45	$ 89	$ 97