Related Party Transactions (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended			9 Months Ended
	Jun. 30, 2011	Sep. 30, 2011		Sep. 30, 2010	Sep. 30, 2011		Sep. 30, 2010	Dec. 31, 2010
Revenues - related parties:
Total revenue - related parties		$ 163.9		$ 133.7	$ 558.2		$ 482.1
Costs and expenses - related parties:
Total costs and expenses - related parties		488.4		384.3	1,365.8		1,054.5
Accounts receivable - related parties:
Total accounts receivable - related parties		37.5			37.5			36.8
Accounts payable - related parties:
Total accounts payable - related parties		212.2			212.2			133.1
Relationship with Affiliates [Abstract]
Dan Duncan LLC's ownership interest of general partner of Enterprise (in hundredths)		100.00%			100.00%
Distributions:
Total distributions					522.8		431.7
Class B units [Member] | EPCO and affiliates [Member]
Relationship with Affiliates [Abstract]
Number of Units (in units)		4,520,431			4,520,431
Enterprise [Member] | EPCO and affiliates [Member]
Distributions:
Total distributions					522.8		255.1
Holdings [Member] | EPCO and affiliates [Member]
Distributions:
Total distributions					0		176.6
EPCO and affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties		187.8		201.3	553.2		525.7
Accounts payable - related parties:
Total accounts payable - related parties		111.4			111.4			88.0
Relationship with Affiliates [Abstract]
Number of Units (in units)		338,930,881	[1]		338,930,881	[1]
Percentage of Outstanding Units (in hundredths)		38.70%			38.70%
Distributions:
Cash paid for railcars associated with retained leases	5.4
Administrative Services Agreement [Abstract]
Operating costs and expenses		157.2		159.4	462.5		434.7
General and administrative expenses		30.6		41.9	90.7		91.0
Total costs and expenses		187.8		201.3	553.2		525.7
Energy Transfer Equity and subsidiaries [Member]
Revenues - related parties:
Total revenue - related parties		95.8		66.2	392.7		312.7
Costs and expenses - related parties:
Total costs and expenses - related parties		278.8		172.6	769.2		496.7
Accounts receivable - related parties:
Total accounts receivable - related parties		20.0			20.0			21.4
Accounts payable - related parties:
Total accounts payable - related parties		87.2			87.2			36.7
K/D/S Promix, LLC [Member] | Other unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties		9.9		3.7	16.3		9.9
Costs and expenses - related parties:
Total costs and expenses - related parties		20.9		9.7	38.6		25.8
Evangeline [Member] | Other unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties		54.3		58.9	134.6		145.7
White River Hub, LLC [Member] | Other unconsolidated affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties		1.7		1.5	5.0		4.4
Seaway Crude Pipeline Company [Member] | Other unconsolidated affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties		0.2		0.8	1.2		3.5
Centennial Pipeline LLC [Member] | Other unconsolidated affiliates [Member]
Costs and expenses - related parties:
Total costs and expenses - related parties		0.2		0.2	2.8		3.1
Other unconsolidated affiliates [Member]
Revenues - related parties:
Total revenue - related parties		68.1		67.5	165.5		169.4
Costs and expenses - related parties:
Total costs and expenses - related parties		21.8		10.4	43.4		32.1
Accounts receivable - related parties:
Total accounts receivable - related parties		17.5			17.5			15.4
Accounts payable - related parties:
Total accounts payable - related parties		13.6			13.6			8.4
Other unconsolidated affiliates [Member] | Other investments in unconsolidated subsidiaries [Member]
Revenues - related parties:
Payments received from unconsolidated affiliates for management services		$ 3.2		$ 2.9	$ 9.6		$ 8.6

[1] Includes 4,520,431 Class B units.