Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Revenues - related parties:
Total revenue - related parties	$ 5.7	$ 25.8	$ 21.7	$ 38.1
Costs and expenses - related parties:
Operating costs and expenses	306.5	331.4	631.5	695.8
General and administrative expenses	33.2	31.1	65.7	62.9
Total costs and expenses - related parties	339.7	362.5	697.2	758.7
Accounts receivable - related parties:
Total accounts receivable - related parties	2.6		2.6		$ 2.5
Accounts payable - related parties:
Total accounts payable - related parties	89.3		89.3		162.3
EPCO and its privately held affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	277.1	267.2	563.1	540.1
Accounts payable - related parties:
Total accounts payable - related parties	$ 78.4		78.4		143.7
Distributions:
Total cash distributions			$ 605.5	593.7
Relationship with Affiliates [Abstract]
Total Number of Units (in units)	701,969,275		701,969,275
Percentage of total common units outstanding	32.10%		32.10%
Enterprise common units pledged as security (in units)	88,222,618		88,222,618
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]
Costs and expenses - related parties:
Operating costs and expenses	$ 241.9	233.6	$ 493.1	472.7
General and administrative expenses	32.0	29.4	62.5	58.7
Total costs and expenses - related parties	273.9	263.0	555.6	531.4
EPCO and its privately held affiliates [Member] | Related Party Operating Leases [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	2.9	3.5	6.3	7.3
Unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties	5.7	25.8	21.7	38.1
Costs and expenses - related parties:
Total costs and expenses - related parties	62.6	$ 95.3	134.1	$ 218.6
Accounts receivable - related parties:
Total accounts receivable - related parties	2.6		2.6		2.5
Accounts payable - related parties:
Total accounts payable - related parties	$ 10.9		$ 10.9		$ 18.6