Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Revenues - related parties:
Total revenue - related parties	$ 12.3	$ 24.7
Costs and expenses - related parties:
Total costs and expenses - related parties	396.2	350.1
Accounts receivable - related parties:
Total accounts receivable - related parties	2.5		$ 3.5
Accounts payable - related parties:
Total accounts payable - related parties	86.6		140.2
Related Party Transactions [Abstract]
Operating costs and expenses	364.4	318.4
General and administrative expenses	31.8	31.7
EPCO and its privately held affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	272.9	256.7
Accounts payable - related parties:
Total accounts payable - related parties	48.6		116.3
Distributions:
Total cash distributions	$ 296.0	286.9
Relationship with Affiliates [Abstract]
Total Number of Units (in units)	697,786,410
Percentage of Total Units Outstanding	31.90%
Enterprise common units pledged as security (in units)	108,222,618
EPCO and its privately held affiliates [Member] | Distribution Reinvestment Plan [Member]
Relationship with Affiliates [Abstract]
Gross proceeds from the sale of common units	$ 7.0
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	268.4	252.2
Related Party Transactions [Abstract]
Operating costs and expenses	239.1	223.0
General and administrative expenses	29.3	29.2
Unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties	12.3	24.7
Costs and expenses - related parties:
Total costs and expenses - related parties	123.3	$ 93.4
Accounts receivable - related parties:
Total accounts receivable - related parties	2.5		3.5
Accounts payable - related parties:
Total accounts payable - related parties	$ 38.0		$ 23.9