Related Party Transactions - Schedule of Costs and Expenses Attributable (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Related Party Transaction [Line Items]
Operating costs and expenses	$ 10,366	$ 12,033	$ 33,648	$ 36,769
General and administrative expenses	61	61	189	184
Total costs and expenses	10,427	12,094	33,837	36,953
EPCO and its privately held affiliates
Related Party Transaction [Line Items]
Total costs and expenses	404	367	1,200	1,085
Administrative Services Agreement | EPCO and its privately held affiliates
Related Party Transaction [Line Items]
Operating costs and expenses	364	323	1,079	956
General and administrative expenses	33	37	101	111
Total costs and expenses	$ 397	$ 360	$ 1,180	$ 1,067