Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues - related parties:
Total revenue - related parties	$ 61	$ 59	$ 80
Costs and expenses - related parties:
Operating costs and expenses	1,385	1,342	1,287
General and administrative expenses	156	156	134
Total costs and expenses - related parties	1,541	1,498	1,421
Related Party [Member]
Costs and expenses - related parties:
Total accounts receivable - related parties	7	11
Total accounts payable - related parties	199	232
EPCO and its privately held affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	1,353	1,289	1,156
Total accounts receivable - related parties	0	1
Total accounts payable - related parties	183	221
Distributions:
Total cash distributions	1,300	1,300	1,200
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]
Costs and expenses - related parties:
Operating costs and expenses	1,189	1,124	1,011
General and administrative expenses	141	146	135
Total costs and expenses - related parties	1,330	1,270	1,146
EPCO and its privately held affiliates [Member] | Related Party Operating Leases [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	$ 13	13	13
EPCO and its privately held affiliates [Member] | Common Units [Member]
Relationship with Affiliates [Abstract]
Number of Units (in units)	702,209,694
Percentage of total units outstanding	32.40%
Enterprise common units pledged as security (in units)	62,976,464
Unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties	$ 61	59	80
Costs and expenses - related parties:
Total costs and expenses - related parties	188	209	265
Total accounts receivable - related parties	7	10
Total accounts payable - related parties	16	11
Unconsolidated affiliates [Member] | Seaway Crude Holdings LLC [Member]
Revenues - related parties:
Total revenue - related parties	25	15	43
Costs and expenses - related parties:
Total costs and expenses - related parties	27	20	104
Unconsolidated affiliates [Member] | Venice Energy Service Company, L.L.C. [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	80	107	94
Unconsolidated affiliates [Member] | K/D/S Promix, L.L.C. [Member]
Revenues - related parties:
Total revenue - related parties	11	22	12
Costs and expenses - related parties:
Total costs and expenses - related parties	36	41	27
Unconsolidated affiliates [Member] | Texas Express Pipeline LLC [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	27	31	28
Unconsolidated affiliates [Member] | Management/Operator Fees [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	$ (11)	$ (12)	$ (13)