Related Party Transactions - Schedule of Costs and Expenses Attributable (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Related Party Transaction [Line Items]
Operating costs and expenses	$ 16,065	$ 9,592	$ 28,568	$ 23,282
General and administrative expenses	64	68	128	128
Total costs and expenses	16,129	9,660	28,696	23,410
Related parties
Related Party Transaction [Line Items]
Operating costs and expenses	449	404	877	796
General and administrative expenses	37	42	72	75
Total costs and expenses	486	446	949	871
EPCO and its privately held affiliates
Related Party Transaction [Line Items]
Total costs and expenses	433	409	854	796
Administrative Services Agreement | EPCO and its privately held affiliates
Related Party Transaction [Line Items]
Operating costs and expenses	394	364	776	715
General and administrative expenses	33	39	64	68
Total costs and expenses	$ 427	$ 403	$ 840	$ 783