Business Segments (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011		Dec. 31, 2011
Segment Gross Operating Margin [Abstract]
Revenues	$ 11,252.5		$ 10,183.7
Less: Operating costs and expenses	(10,467.2)		(9,537.1)
Add: Equity in income of unconsolidated affiliates	9.9		16.2
Depreciation, amortization and accretion in operating costs and expenses	254.6	[1]	230.8	[1]
Non-cash asset impairment charges	5.4		0
Operating lease expenses paid by EPCO	0		0.2
Gains from asset sales and related transactions in operating costs and expenses	(2.5)	[2]	(18.4)	[2]
Total segment gross operating margin	1,052.7		875.4
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	1,052.7		875.4
Adjustments to reconcile total segment gross operating margin to operating income:
Depreciation, amortization and accretion in operating costs and expenses	(254.6)	[1]	(230.8)	[1]
Non-cash asset impairment charges	(5.4)		0
Operating lease expenses paid by EPCO	0		(0.2)
Gains from asset sales and related transactions in operating costs and expenses	2.5	[2]	18.4	[2]
General and administrative costs	(46.3)		(37.9)
Operating income	748.9		624.9
Other expense, net	(127.8)		(183.3)
Income before income taxes	621.1		441.6
Information by business segment [Abstract]
Revenues from third parties	11,221.7		9,933.6
Revenues from related parties	30.8		250.1
Intersegment and intrasegment revenues	0		0
Total revenues	11,252.5		10,183.7
Equity in income (loss) of unconsolidated affiliates	9.9		16.2
Gross operating margin	1,052.7		875.4
Segment assets	27,542.1				27,799.7
Property, plant and equipment, net (see Note 6)	22,910.3				22,191.6
Investments in unconsolidated affiliates (see Note 7)	895.3				1,859.6
Intangible assets, net (see Note 8)	1,644.2				1,656.2
Goodwill (see Note 8)	2,092.3				2,092.3
Consolidated Revenues [Abstract]
Total consolidated revenues	11,252.5		10,183.7
Operating costs and expenses:
Cost of sales related to our marketing activities	8,688.5		7,930.1
Depreciation, amortization and accretion	254.6	[1]	230.8	[1]
Gains from asset sales and related transactions in operating costs and expenses	(2.5)	[2]	(18.4)	[2]
Non-cash asset impairment charges	5.4		0
Other operating costs and expenses	1,521.2		1,394.6
General and administrative costs	46.3		37.9
Total costs and expenses (see Note 11)	10,513.5		9,575.0
Energy Transfer Equity [Member]
Schedule of Equity Method Investments [Line Items]
Total Energy Transfer Equity common units sold (in shares)	26,331,868
NGL Pipelines and Services [Member]
Segment Gross Operating Margin [Abstract]
Revenues	4,354.5		4,256.8
Add: Equity in income of unconsolidated affiliates	5.2		5.9
Non-cash asset impairment charges	5.1
Total segment gross operating margin	654.9		504.4
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	654.9		504.4
Adjustments to reconcile total segment gross operating margin to operating income:
Non-cash asset impairment charges	(5.1)
Information by business segment [Abstract]
Revenues from third parties	4,354.1		4,055.4
Revenues from related parties	0.4		201.4
Intersegment and intrasegment revenues	2,818.2		3,474.6
Total revenues	7,172.7		7,731.4
Equity in income (loss) of unconsolidated affiliates	5.2		5.9
Gross operating margin	654.9		504.4
Segment assets	8,014.1				7,966.4
Property, plant and equipment, net (see Note 6)	7,136.1				7,137.8
Investments in unconsolidated affiliates (see Note 7)	186.7				146.1
Intangible assets, net (see Note 8)	350.1				341.3
Goodwill (see Note 8)	341.2				341.2
Consolidated Revenues [Abstract]
Sales of NGLs and related products	4,115.3		4,057.7
Midstream services	239.2		199.1
Total consolidated revenues	4,354.5		4,256.8
Operating costs and expenses:
Non-cash asset impairment charges	5.1
Onshore Natural Gas Pipelines And Services [Member]
Segment Gross Operating Margin [Abstract]
Revenues	833.6		916.6
Add: Equity in income of unconsolidated affiliates	1.4		1.2
Total segment gross operating margin	206.2		159.2
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	206.2		159.2
Information by business segment [Abstract]
Revenues from third parties	804.9		871.7
Revenues from related parties	28.7		44.9
Intersegment and intrasegment revenues	223.7		270.9
Total revenues	1,057.3		1,187.5
Equity in income (loss) of unconsolidated affiliates	1.4		1.2
Gross operating margin	206.2		159.2
Segment assets	9,984.9				9,949.6
Property, plant and equipment, net (see Note 6)	8,546.0				8,495.4
Investments in unconsolidated affiliates (see Note 7)	29.3				30.1
Intangible assets, net (see Note 8)	1,113.3				1,127.8
Goodwill (see Note 8)	296.3				296.3
Consolidated Revenues [Abstract]
Midstream services	261.0		203.9
Sales of natural gas	572.6		712.7
Total consolidated revenues	833.6		916.6
Onshore Crude Oil Pipelines and Services [Member]
Segment Gross Operating Margin [Abstract]
Revenues	4,473.6		3,370.6
Add: Equity in income of unconsolidated affiliates	0.5		(0.5)
Total segment gross operating margin	39.3		31.8
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	39.3		31.8
Information by business segment [Abstract]
Revenues from third parties	4,473.6		3,370.6
Revenues from related parties	0		0
Intersegment and intrasegment revenues	1,730.9		707.1
Total revenues	6,204.5		4,077.7
Equity in income (loss) of unconsolidated affiliates	0.5		(0.5)
Gross operating margin	39.3		31.8
Segment assets	960.1				944.6
Property, plant and equipment, net (see Note 6)	478.7				456.9
Investments in unconsolidated affiliates (see Note 7)	164.6				170.7
Intangible assets, net (see Note 8)	5.6				5.8
Goodwill (see Note 8)	311.2				311.2
Consolidated Revenues [Abstract]
Midstream services	26.0		22.4
Sales of crude oil	4,447.6		3,348.2
Total consolidated revenues	4,473.6		3,370.6
Offshore Pipelines And Services [Member]
Segment Gross Operating Margin [Abstract]
Revenues	56.1		64.4
Add: Equity in income of unconsolidated affiliates	6.9		8.3
Total segment gross operating margin	52.1		61.3
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	52.1		61.3
Information by business segment [Abstract]
Revenues from third parties	54.4		60.6
Revenues from related parties	1.7		3.8
Intersegment and intrasegment revenues	3.3		1.7
Total revenues	59.4		66.1
Equity in income (loss) of unconsolidated affiliates	6.9		8.3
Gross operating margin	52.1		61.3
Segment assets	2,007.7				2,000.9
Property, plant and equipment, net (see Note 6)	1,399.7				1,416.4
Investments in unconsolidated affiliates (see Note 7)	451.0				424.9
Intangible assets, net (see Note 8)	74.9				77.5
Goodwill (see Note 8)	82.1				82.1
Consolidated Revenues [Abstract]
Midstream services	54.6		60.8
Sales of natural gas	0.1		0.3
Sales of crude oil	1.4		3.3
Total consolidated revenues	56.1		64.4
Petrochemical and Refined Products Services [Member]
Segment Gross Operating Margin [Abstract]
Revenues	1,534.7		1,575.3
Add: Equity in income of unconsolidated affiliates	(6.5)		(5.0)
Non-cash asset impairment charges	0.3
Total segment gross operating margin	97.8		112.4
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	97.8		112.4
Adjustments to reconcile total segment gross operating margin to operating income:
Non-cash asset impairment charges	(0.3)
Information by business segment [Abstract]
Revenues from third parties	1,534.7		1,575.3
Revenues from related parties	0		0
Intersegment and intrasegment revenues	439.9		473.1
Total revenues	1,974.6		2,048.4
Equity in income (loss) of unconsolidated affiliates	(6.5)		(5.0)
Gross operating margin	97.8		112.4
Segment assets	3,764.5				3,769.5
Property, plant and equipment, net (see Note 6)	2,539.0				2,539.5
Investments in unconsolidated affiliates (see Note 7)	63.7				64.7
Intangible assets, net (see Note 8)	100.3				103.8
Goodwill (see Note 8)	1,061.5				1,061.5
Consolidated Revenues [Abstract]
Midstream services	183.5		192.5
Sales of petrochemicals and refined products	1,351.2		1,382.8
Total consolidated revenues	1,534.7		1,575.3
Operating costs and expenses:
Non-cash asset impairment charges	0.3
Other Investment [Member]
Segment Gross Operating Margin [Abstract]
Add: Equity in income of unconsolidated affiliates	2.4	[3]	6.3	[3]
Total segment gross operating margin	2.4		6.3
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	2.4		6.3
Information by business segment [Abstract]
Revenues from third parties	0		0
Revenues from related parties	0		0
Intersegment and intrasegment revenues	0		0
Total revenues	0		0
Equity in income (loss) of unconsolidated affiliates	2.4	[3]	6.3	[3]
Gross operating margin	2.4		6.3
Segment assets	0				1,023.1
Property, plant and equipment, net (see Note 6)	0				0
Investments in unconsolidated affiliates (see Note 7)	0				1,023.1
Intangible assets, net (see Note 8)	0				0
Goodwill (see Note 8)	0				0
Adjustments and Eliminations [Member]
Segment Gross Operating Margin [Abstract]
Add: Equity in income of unconsolidated affiliates	0		0
Total segment gross operating margin	0		0
Reconciliation of total Segment Gross Operating Margin [Abstract]
Total segment gross operating margin	0		0
Information by business segment [Abstract]
Revenues from third parties	0		0
Revenues from related parties	0		0
Intersegment and intrasegment revenues	(5,216.0)		(4,927.4)
Total revenues	(5,216.0)		(4,927.4)
Equity in income (loss) of unconsolidated affiliates	0		0
Gross operating margin	0		0
Segment assets	2,810.8				2,145.6
Property, plant and equipment, net (see Note 6)	2,810.8				2,145.6
Investments in unconsolidated affiliates (see Note 7)	0				0
Intangible assets, net (see Note 8)	0				0
Goodwill (see Note 8)	$ 0				$ 0

[1] Amount is a component of "Depreciation, amortization and accretion" as presented on the Unaudited Condensed Statements of Consolidated Cash Flows.

[2] Amount is a component of "Gains from asset sales and related transactions" as presented on the Unaudited Condensed Statements of Consolidated Cash Flows.

[3] With respect to the first quarter of 2012, amount presented reflects our estimated equity in the income of Energy Transfer Equity from January 1, 2012 to January 18, 2012.