Related Party Transactions - Narrative (Details) - EPCO and its privately held affiliates - 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]
Total cash distributions			$ 1,100	$ 1,100
Operating lease, expense	$ 6	$ 7	$ 18	$ 17
Common Units
Related Party Transaction [Line Items]
Enterprise common units pledged as security (in units)	59,976,464		59,976,464