Related Party Transactions - Narrative (Details) - EPCO and its privately held affiliates - 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]
Total cash distributions			$ 747	$ 727
Operating lease, expense	$ 6	$ 6	$ 12	$ 12
Common Units
Related Party Transaction [Line Items]
Enterprise common units pledged as security (in units)	59,976,464		59,976,464