Reportable Segments Table - Revenues (External and Intersegment) by Investments (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues	$ (20,772)	$ (20,739)	$ (63,130)	$ (58,054)
Intersegment Eliminations [Member]
Revenues	(2,771)	(3,112)	(8,600)	(9,391)
Intrastate Transportation And Storage [Member] \| Operating Segments [Member]
Revenues	(678)	(973)	(2,233)	(3,070)
Intrastate Transportation And Storage [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(622)	(880)	(2,010)	(2,424)
Intrastate Transportation And Storage [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(56)	(93)	(223)	(646)
Investment In Sunoco LP [Member] \| Operating Segments [Member]
Revenues	(5,751)	(6,320)	(17,424)	(17,427)
Investment In Sunoco LP [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(5,738)	(6,317)	(17,406)	(17,395)
Investment In Sunoco LP [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(13)	(3)	(18)	(32)
Investment In USAC [Member] \| Operating Segments [Member]
Revenues	(240)	(217)	(705)	(621)
Investment In USAC [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(227)	(212)	(680)	(605)
Investment In USAC [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(13)	(5)	(25)	(16)
Interstate Transportation and Storage [Member] \| Operating Segments [Member]
Revenues	(575)	(571)	(1,696)	(1,755)
Interstate Transportation and Storage [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(568)	(562)	(1,676)	(1,720)
Interstate Transportation and Storage [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(7)	(9)	(20)	(35)
Midstream [Member] \| Operating Segments [Member]
Revenues	(2,758)	(2,777)	(8,039)	(7,999)
Midstream [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(1,064)	(775)	(2,646)	(2,370)
Midstream [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(1,694)	(2,002)	(5,393)	(5,629)
NGL and refined products transportation and services [Member] \| Operating Segments [Member]
Revenues	(5,853)	(5,260)	(18,174)	(15,864)
NGL and refined products transportation and services [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(5,017)	(4,369)	(15,598)	(13,210)
NGL and refined products transportation and services [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(836)	(891)	(2,576)	(2,654)
Crude oil transportation and services [Member] \| Operating Segments [Member]
Revenues	(7,309)	(7,289)	(22,319)	(19,322)
Crude oil transportation and services [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(7,294)	(7,289)	(22,294)	(19,321)
Crude oil transportation and services [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(15)	0	(25)	(1)
Other Segments [Member] \| Operating Segments [Member]
Revenues	(379)	(444)	(1,140)	(1,387)
Other Segments [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(242)	(335)	(820)	(1,009)
Other Segments [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	$ (137)	$ (109)	$ (320)	$ (378)