Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jul. 11, 2017	Dec. 31, 2016
Revenues - related parties:
Total revenue - related parties	$ 9.9	$ 13.2	$ 20.7	$ 28.8
Costs and expenses - related parties:
Total costs and expenses - related parties	302.3	298.8	583.6	609.0
Accounts receivable - related parties:
Total accounts receivable - related parties	3.0		3.0			$ 1.1
Accounts payable - related parties:
Total accounts payable - related parties	62.9		62.9			105.1
Related Party Transactions [Abstract]
Operating costs and expenses	272.6	270.3	524.2	550.9
General and administrative expenses	29.7	28.5	59.4	58.1
EPCO and its privately held affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	247.4	241.4	490.5	478.7
Accounts payable - related parties:
Total accounts payable - related parties	$ 51.2		51.2			88.9
Distributions:
Total cash distributions			$ 553.7	525.2
Relationship with Affiliates [Abstract]
Total Number of Units (in units)	685,508,319		685,508,319
Percentage of Total Units Outstanding	32.00%		32.00%
Enterprise common units pledged as security (in units)	118,000,000		118,000,000		85,000,000
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	$ 243.0	236.9	$ 481.4	469.6
Related Party Transactions [Abstract]
Operating costs and expenses	215.9	210.6	427.5	416.0
General and administrative expenses	27.1	26.3	53.9	53.6
Unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties	9.9	13.2	20.7	28.8
Costs and expenses - related parties:
Total costs and expenses - related parties	54.9	$ 57.4	93.1	$ 130.3
Accounts receivable - related parties:
Total accounts receivable - related parties	3.0		3.0			1.1
Accounts payable - related parties:
Total accounts payable - related parties	$ 11.7		$ 11.7			$ 16.2