Reportable Segments Table - Revenues (External and Intersegment) by Investments (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues	$ (25,945)	$ (15,101)	$ (46,436)	$ (32,096)
Intersegment Eliminations [Member]
Revenues	5,644	2,520	(9,759)	(6,253)
Intrastate Transportation And Storage [Member]
Revenues	(2,203)	(949)	(3,835)	(5,849)
Investment In Sunoco LP [Member]
Revenues	(7,815)	(4,392)	(13,217)	(7,863)
Investment In USAC [Member]
Revenues	(172)	(156)	(335)	(314)
Interstate Transportation and Storage [Member]
Revenues	(530)	(407)	(1,096)	(932)
Midstream [Member]
Revenues	(5,050)	(2,199)	(8,975)	(4,871)
NGL and refined products transportation and services [Member]
Revenues	(7,557)	(4,522)	(13,834)	(8,512)
Crude oil transportation and services [Member]
Revenues	(7,300)	(4,420)	(13,226)	(7,920)
Other Segments [Member]
Revenues	(962)	(576)	(1,677)	(2,088)
Intersegment [Member] \| Intrastate Transportation And Storage [Member]
Revenues	(209)	(97)	(366)	(1,021)
Intersegment [Member] \| Investment In Sunoco LP [Member]
Revenues	(22)	(7)	(27)	(9)
Intersegment [Member] \| Investment In USAC [Member]
Revenues	(4)	(3)	(8)	(6)
Intersegment [Member] \| Interstate Transportation and Storage [Member]
Revenues	(19)	(3)	(38)	(27)
Intersegment [Member] \| Midstream [Member]
Revenues	(3,897)	(1,628)	(6,691)	(3,722)
Intersegment [Member] \| NGL and refined products transportation and services [Member]
Revenues	(1,327)	(692)	(2,359)	(1,285)
Intersegment [Member] \| Crude oil transportation and services [Member]
Revenues	(1)	0	(1)	0
Intersegment [Member] \| Other Segments [Member]
Revenues	(165)	(90)	(269)	(183)
External Customers [Member] \| Intrastate Transportation And Storage [Member]
Revenues	(1,994)	(852)	(3,469)	(4,828)
External Customers [Member] \| Investment In Sunoco LP [Member]
Revenues	(7,793)	(4,385)	(13,190)	(7,854)
External Customers [Member] \| Investment In USAC [Member]
Revenues	(168)	(153)	(327)	(308)
External Customers [Member] \| Interstate Transportation and Storage [Member]
Revenues	(511)	(404)	(1,058)	(905)
External Customers [Member] \| Midstream [Member]
Revenues	(1,153)	(571)	(2,284)	(1,149)
External Customers [Member] \| NGL and refined products transportation and services [Member]
Revenues	(6,230)	(3,830)	(11,475)	(7,227)
External Customers [Member] \| Crude oil transportation and services [Member]
Revenues	(7,299)	(4,420)	(13,225)	(7,920)
External Customers [Member] \| Other Segments [Member]
Revenues	$ (797)	$ (486)	$ (1,408)	$ (1,905)