Estimates (Schedule Of Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Goodwill	$ 4,019	$ 2,566
Goodwill, Acquired During Period	16	1,455
Goodwill	3,903	4,019
Goodwill, Other Changes	6	(2)
Goodwill, Written off Related to Sale of Business Unit	(138)
Intrastate Transportation and Storage
Goodwill [Roll Forward]
Goodwill	0	0
Goodwill, Acquired During Period	0	0
Goodwill	0	0
Goodwill, Other Changes	0	0
Goodwill, Written off Related to Sale of Business Unit	0
Interstate Transportation and Storage
Goodwill [Roll Forward]
Goodwill	0	0
Goodwill, Acquired During Period	0	0
Goodwill	0	0
Goodwill, Other Changes	0	0
Goodwill, Written off Related to Sale of Business Unit	0
Midstream
Goodwill [Roll Forward]
Goodwill	601	0
Goodwill, Acquired During Period	0	601
Goodwill	617	601
Goodwill, Other Changes	16	0
Goodwill, Written off Related to Sale of Business Unit	0
NGL and Refined Products Transportation and Services
Goodwill [Roll Forward]
Goodwill	884	693
Goodwill, Acquired During Period	0	191
Goodwill	886	884
Goodwill, Other Changes	2	0
Goodwill, Written off Related to Sale of Business Unit	0
Crude Oil Transportation and Services
Goodwill [Roll Forward]
Goodwill	853	190
Goodwill, Acquired During Period	0	663
Goodwill	841	853
Goodwill, Other Changes	(12)	0
Goodwill, Written off Related to Sale of Business Unit	0
Investment in Sunoco LP
Goodwill [Roll Forward]
Goodwill	1,599	1,601
Goodwill, Acquired During Period	16	0
Goodwill	1,477	1,599
Goodwill, Other Changes	0	(2)
Goodwill, Written off Related to Sale of Business Unit	(138)
Investment in USAC
Goodwill [Roll Forward]
Goodwill	0	0
Goodwill, Acquired During Period	0	0
Goodwill	0	0
Goodwill, Other Changes	0	0
Goodwill, Written off Related to Sale of Business Unit	0
All Other
Goodwill [Roll Forward]
Goodwill	82	82
Goodwill, Acquired During Period	0	0
Goodwill	82	82
Goodwill, Other Changes	0	$ 0
Goodwill, Written off Related to Sale of Business Unit	$ 0

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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