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Related Party Transactions (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended
Sep. 30, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2011
Other Investment [Member]
Dec. 31, 2010
Other Investment [Member]
Dec. 31, 2009
Other Investment [Member]
Dec. 31, 2010
Class B units [Member]
Jan. 31, 2012
Energy Transfer Equity [Member]
Other Investment [Member]
Dec. 31, 2011
Energy Transfer Equity [Member]
Other Investment [Member]
Feb. 29, 2012
Energy Transfer Equity [Member]
Other Investment [Member]
Jun. 30, 2011
EPCO and affiliates [Member]
Dec. 31, 2011
EPCO and affiliates [Member]
Dec. 31, 2010
EPCO and affiliates [Member]
Dec. 31, 2009
EPCO and affiliates [Member]
Dec. 31, 2011
EPCO and affiliates [Member]
Class B units [Member]
Dec. 31, 2011
EPCO and affiliates [Member]
Enterprise [Member]
Dec. 31, 2010
EPCO and affiliates [Member]
Enterprise [Member]
Dec. 31, 2009
EPCO and affiliates [Member]
Enterprise [Member]
Dec. 31, 2011
EPCO and affiliates [Member]
Holdings [Member]
Dec. 31, 2010
EPCO and affiliates [Member]
Holdings [Member]
Dec. 31, 2009
EPCO and affiliates [Member]
Holdings [Member]
Dec. 31, 2011
Energy Transfer Equity and subsidiaries [Member]
Dec. 31, 2010
Energy Transfer Equity and subsidiaries [Member]
Dec. 31, 2009
Energy Transfer Equity and subsidiaries [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
Evangeline [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
Evangeline [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
Evangeline [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
K/D/S Promix, LLC [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
K/D/S Promix, LLC [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
K/D/S Promix, LLC [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
Centennial Pipeline LLC [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
Centennial Pipeline LLC [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
Centennial Pipeline LLC [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
Seaway Crude Pipeline Company [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
Seaway Crude Pipeline Company [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
Seaway Crude Pipeline Company [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
White River Hub, LLC [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
White River Hub, LLC [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
White River Hub, LLC [Member]
Dec. 31, 2011
Other unconsolidated affiliates [Member]
Other investments in unconsolidated subsidiaries [Member]
Dec. 31, 2010
Other unconsolidated affiliates [Member]
Other investments in unconsolidated subsidiaries [Member]
Dec. 31, 2009
Other unconsolidated affiliates [Member]
Other investments in unconsolidated subsidiaries [Member]
Dec. 31, 2011
Other Related Parties [Member]
Dec. 31, 2010
Other Related Parties [Member]
Dec. 31, 2009
Other Related Parties [Member]
Revenues - related parties:                                                                                                  
Total revenue - related parties   $ 775.1 $ 698.4 $ 599.0 $ 0 $ 0 $ 0                               $ 573.2 $ 490.5 $ 423.1 $ 201.9 $ 207.9 $ 175.9 $ 166.1 $ 174.5 $ 155.5 $ 18.3 $ 13.1 $ 11.0                              
Costs and expenses - related parties:                                                                                                  
Total costs and expenses - related parties   1,874.0 1,487.1 1,115.4                 722.7 712.5 592.5               1,101.5 724.4 443.8 49.8 50.2 38.2       44.9 35.6 26.0 2.8 8.9 6.7 1.4 4.5 3.4 6.7 6.0 6.5       0 0 40.9
Payments received from unconsolidated affiliates for management services                                                                                       13.0 11.5 10.7      
Other expense - related parties:                                                                                                  
Total other expense - related parties                         0 0 4.1                                                                    
Accounts receivable - related parties:                                                                                                  
Total accounts receivable - related parties   43.5 36.8                                       28.4 21.4   15.1 15.4                                            
Accounts payable - related parties:                                                                                                  
Total accounts payable - related parties   211.6 133.1                   108.3 88.0                 92.6 36.7   10.7 8.4                                            
Relationship with Affiliates [Abstract]                                                                                                  
Number of Units (in units)                         338,930,881 [1]     4,520,431                                                                  
Percentage of Outstanding Units (in hundredths)                         38.20%                                                                        
Dan Duncan LLC's ownership interest of general partner of Enterprise (in hundredths)   100.00%                                                                                              
Distributions:                                                                                                  
Total distributions   701.5 581.5 519.7                         701.5 344.1 314.5 0 237.4 205.2                                                      
Enterprise common units pledged as security by Duncan Family Interests (in units)   65,000,000                                                                                              
Cash paid for railcars associated with retained leases                       5.4                                                                          
Administrative Services Agreement [Abstract]                                                                                                  
Operating costs and expenses                         611.6 588.5 495.3                                                                    
General and administrative expenses                         111.1 124.0 97.2                                                                    
Total costs and expenses                         722.7 712.5 592.5                                                                    
Common units issued to EPCO in exchange for equity interests in trucking business (in units) 523,306             0                                                                                  
Historical basis of net assets exchanged $ 37.8                                                                                                
Schedule of Equity Method Investments [Line Items]                                                                                                  
Number of Energy Transfer Equity common units sold (in units)                 22,762,636 9,672,576                                                                              
Number of common units owned accounts for under equity method (in units)                   29,303,514 6,000,000                                                                            
Ownership percentage, description                     less than 3%                                                                            
[1] Includes 4,520,431 Class B units.