Related Party Transactions - Schedule of Costs and Expenses Attributable (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Related Party Transaction [Line Items]
Operating costs and expenses	$ 9,592	$ 11,762	$ 23,282	$ 24,736
General and administrative expenses	68	57	128	123
Total costs and expenses	9,660	11,819	23,410	24,859
EPCO and its privately held affiliates
Related Party Transaction [Line Items]
Total costs and expenses	409	362	796	718
Administrative Services Agreement | EPCO and its privately held affiliates
Related Party Transaction [Line Items]
Operating costs and expenses	364	319	715	633
General and administrative expenses	39	38	68	74
Total costs and expenses	$ 403	$ 357	$ 783	$ 707