Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Revenues - related parties:
Total revenue - related parties	$ 30.9	$ 7.5	$ 54.5	$ 29.2
Costs and expenses - related parties:
Operating costs and expenses	340.4	283.0	964.7	914.5
General and administrative expenses	30.9	34.0	98.5	99.7
Total costs and expenses - related parties	371.3	317.0	1,063.2	1,014.2
Accounts receivable - related parties:
Total accounts receivable - related parties	3.0		3.0		$ 5.6
Accounts payable - related parties:
Total accounts payable - related parties	124.7		124.7		149.5
EPCO and its privately held affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	287.1	283.9	861.8	847.0
Accounts receivable - related parties:
Total accounts receivable - related parties	1.3		1.3		1.9
Accounts payable - related parties:
Total accounts payable - related parties	110.1		110.1		139.6
Distributions:
Total cash distributions			918.1	908.2
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]
Costs and expenses - related parties:
Operating costs and expenses	253.7	247.8	755.5	740.9
General and administrative expenses	33.4	32.1	98.0	94.6
Total costs and expenses - related parties	287.1	279.9	853.5	835.5
EPCO and its privately held affiliates [Member] | Related Party Operating Leases [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties	$ 3.4	3.3	$ 10.1	9.6
EPCO and its privately held affiliates [Member] | Common Units [Member]
Relationship with Affiliates [Abstract]
Total Number of Units (in units)	702,152,448		702,152,448
Percentage of total units outstanding	32.20%		32.20%
Enterprise common units pledged as security (in units)	92,976,464		92,976,464
Unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties	$ 30.9	7.5	$ 54.5	29.2
Costs and expenses - related parties:
Total costs and expenses - related parties	84.2	$ 33.1	201.4	$ 167.2
Accounts receivable - related parties:
Total accounts receivable - related parties	1.7		1.7		3.7
Accounts payable - related parties:
Total accounts payable - related parties	$ 14.6		$ 14.6		$ 9.9