Reportable Segments Table - Revenues (External and Intersegment) by Investments (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues	$ (18,320)	$ (25,945)	$ (37,315)	$ (46,436)
Intersegment Eliminations [Member]
Revenues	2,810	5,644	(6,279)	9,759
Intrastate Transportation And Storage [Member]
Revenues	(807)	(2,203)	(2,097)	(3,835)
Investment In Sunoco LP [Member]
Revenues	(5,745)	(7,815)	(11,107)	(13,217)
Investment In USAC [Member]
Revenues	(207)	(172)	(404)	(335)
Interstate Transportation and Storage [Member]
Revenues	(550)	(530)	(1,184)	(1,096)
Midstream [Member]
Revenues	(2,468)	(5,050)	(5,222)	(8,975)
NGL and refined products transportation and services [Member]
Revenues	(5,001)	(7,557)	(10,604)	(13,834)
Crude oil transportation and services [Member]
Revenues	(5,953)	(7,300)	(12,033)	(13,226)
Other Segments [Member]
Revenues	(399)	(962)	(943)	(1,677)
Intersegment [Member] \| Intrastate Transportation And Storage [Member]
Revenues	(77)	(209)	(553)	(366)
Intersegment [Member] \| Investment In Sunoco LP [Member]
Revenues	(16)	(22)	(29)	(27)
Intersegment [Member] \| Investment In USAC [Member]
Revenues	(6)	(4)	(11)	(8)
Intersegment [Member] \| Interstate Transportation and Storage [Member]
Revenues	(14)	(19)	(26)	(38)
Intersegment [Member] \| Midstream [Member]
Revenues	(1,682)	(3,897)	(3,627)	(6,691)
Intersegment [Member] \| NGL and refined products transportation and services [Member]
Revenues	(897)	(1,327)	(1,763)	(2,359)
Intersegment [Member] \| Crude oil transportation and services [Member]
Revenues	0	(1)	(1)	(1)
Intersegment [Member] \| Other Segments [Member]
Revenues	(118)	(165)	(269)	(269)
External Customers [Member] \| Intrastate Transportation And Storage [Member]
Revenues	(730)	(1,994)	(1,544)	(3,469)
External Customers [Member] \| Investment In Sunoco LP [Member]
Revenues	(5,729)	(7,793)	(11,078)	(13,190)
External Customers [Member] \| Investment In USAC [Member]
Revenues	(201)	(168)	(393)	(327)
External Customers [Member] \| Interstate Transportation and Storage [Member]
Revenues	(536)	(511)	(1,158)	(1,058)
External Customers [Member] \| Midstream [Member]
Revenues	(786)	(1,153)	(1,595)	(2,284)
External Customers [Member] \| NGL and refined products transportation and services [Member]
Revenues	(4,104)	(6,230)	(8,841)	(11,475)
External Customers [Member] \| Crude oil transportation and services [Member]
Revenues	(5,953)	(7,299)	(12,032)	(13,225)
External Customers [Member] \| Other Segments [Member]
Revenues	$ (281)	$ (797)	$ (674)	$ (1,408)