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Related Party Transactions (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Revenues - related parties:      
Total revenue - related parties $ 10,800 $ 15,600  
Costs and expenses - related parties:      
Total costs and expenses - related parties 281,300 310,200  
Accounts receivable - related parties:      
Total accounts receivable - related parties 1,600   $ 1,100
Accounts payable - related parties:      
Total accounts payable - related parties 50,100   105,100
Related Party Transactions [Abstract]      
Operating costs and expenses 251,600 280,600  
General and administrative expenses 29,700 29,600  
EPCO and its privately held affiliates [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties 243,100 237,300  
Accounts payable - related parties:      
Total accounts payable - related parties 39,200   88,900
Distributions:      
Total cash distributions $ 275,200 260,100  
Relationship with Affiliates [Abstract]      
Total Number of Units (in units) 685,481,428    
Percentage of Total Units Outstanding 32.00%    
Enterprise common units pledged as security (in units) 118,000,000    
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties $ 238,400 232,700  
Related Party Transactions [Abstract]      
Operating costs and expenses 211,600 205,400  
General and administrative expenses 26,800 27,300  
Unconsolidated affiliates [Member]      
Revenues - related parties:      
Total revenue - related parties 10,800 15,600  
Costs and expenses - related parties:      
Total costs and expenses - related parties 38,200 $ 72,900  
Accounts receivable - related parties:      
Total accounts receivable - related parties 1,600   1,100
Accounts payable - related parties:      
Total accounts payable - related parties $ 10,900   $ 16,200