Reportable Segments Table - Revenues (External and Intersegment) by Investments (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues	$ (19,242)	$ (20,729)	$ (40,262)	$ (42,358)
Intersegment Eliminations [Member]
Revenues	(3,679)	(2,806)	(7,766)	(5,829)
Intrastate Transportation And Storage [Member] \| Operating Segments [Member]
Revenues	(931)	(637)	(2,225)	(1,555)
Intrastate Transportation And Storage [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(819)	(578)	(1,966)	(1,388)
Intrastate Transportation And Storage [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(112)	(59)	(259)	(167)
Investment In Sunoco LP [Member] \| Operating Segments [Member]
Revenues	(5,390)	(6,173)	(10,569)	(11,672)
Investment In Sunoco LP [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(5,386)	(6,172)	(10,563)	(11,667)
Investment In Sunoco LP [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(4)	(1)	(6)	(5)
Investment In USAC [Member] \| Operating Segments [Member]
Revenues	(250)	(236)	(495)	(465)
Investment In USAC [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(234)	(230)	(464)	(453)
Investment In USAC [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(16)	(6)	(31)	(12)
Interstate Transportation and Storage [Member] \| Operating Segments [Member]
Revenues	(590)	(519)	(1,211)	(1,121)
Interstate Transportation and Storage [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(584)	(513)	(1,197)	(1,108)
Interstate Transportation and Storage [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(6)	(6)	(14)	(13)
Midstream [Member] \| Operating Segments [Member]
Revenues	(3,135)	(2,507)	(6,791)	(5,281)
Midstream [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(857)	(776)	(1,741)	(1,582)
Midstream [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(2,278)	(1,731)	(5,050)	(3,699)
NGL and refined products transportation and services [Member] \| Operating Segments [Member]
Revenues	(5,941)	(5,795)	(12,850)	(12,321)
NGL and refined products transportation and services [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(5,029)	(4,897)	(11,063)	(10,581)
NGL and refined products transportation and services [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	(912)	(898)	(1,787)	(1,740)
Crude oil transportation and services [Member] \| Operating Segments [Member]
Revenues	(5,748)	(7,372)	(11,956)	(15,010)
Crude oil transportation and services [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(5,748)	(7,362)	(11,953)	(15,000)
Crude oil transportation and services [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	0	(10)	(3)	(10)
Other Segments [Member] \| Operating Segments [Member]
Revenues	(936)	(296)	(1,931)	(762)
Other Segments [Member] \| Operating Segments [Member] \| External Customers [Member]
Revenues	(585)	(201)	(1,315)	(579)
Other Segments [Member] \| Operating Segments [Member] \| Intersegment [Member]
Revenues	$ (351)	$ (95)	$ (616)	$ (183)