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Related Party Transactions (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Revenues - related parties:      
Total revenue - related parties $ 80.1 $ 36.7 $ 67.3
Costs and expenses - related parties:      
Operating costs and expenses 1,286.8 1,210.6 1,412.0
General and administrative expenses 133.4 136.2 136.4
Total costs and expenses - related parties 1,420.2 1,346.8 1,548.4
Accounts receivable - related parties:      
Total accounts receivable - related parties 20.6 5.6  
Accounts payable - related parties:      
Total accounts payable - related parties 166.6 149.5  
EPCO and its privately held affiliates [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties 1,155.2 1,143.7 1,145.3
Accounts receivable - related parties:      
Total accounts receivable - related parties 1.2 1.9  
Accounts payable - related parties:      
Total accounts payable - related parties 150.7 139.6  
Distributions:      
Total cash distributions 1,220.0 1,210.0 1,190.0
EPCO and its privately held affiliates [Member] | Distribution Reinvestment Plan [Member]      
Relationship with Affiliates [Abstract]      
Gross proceeds from the sale of common units     29.0
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]      
Costs and expenses - related parties:      
Operating costs and expenses 1,011.3 999.0 1,000.2
General and administrative expenses 135.1 128.9 127.6
Total costs and expenses - related parties 1,146.4 1,127.9 1,127.8
EPCO and its privately held affiliates [Member] | Related Party Operating Leases [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties $ 13.5 13.0 14.9
EPCO and its privately held affiliates [Member] | Common Units [Member]      
Relationship with Affiliates [Abstract]      
Number of Units (in units) 702,163,193    
Percentage of total units outstanding 32.30%    
Enterprise common units pledged as security (in units) 92,976,464    
Unconsolidated affiliates [Member]      
Revenues - related parties:      
Total revenue - related parties $ 80.1 36.7 67.3
Costs and expenses - related parties:      
Total costs and expenses - related parties 265.0 203.1 403.1
Accounts receivable - related parties:      
Total accounts receivable - related parties 19.4 3.7  
Accounts payable - related parties:      
Total accounts payable - related parties 15.9 9.9  
Unconsolidated affiliates [Member] | Seaway Crude Holdings LLC [Member]      
Revenues - related parties:      
Total revenue - related parties 42.8 20.2 42.7
Costs and expenses - related parties:      
Total costs and expenses - related parties 104.0 71.5 194.5
Unconsolidated affiliates [Member] | Venice Energy Service Company, L.L.C. [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties 94.1 51.3 89.2
Unconsolidated affiliates [Member] | K/D/S Promix, L.L.C. [Member]      
Revenues - related parties:      
Total revenue - related parties 11.5 6.0 9.1
Costs and expenses - related parties:      
Total costs and expenses - related parties 27.4 23.5 34.8
Unconsolidated affiliates [Member] | Texas Express Pipeline LLC [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties 28.1 29.1 33.5
Unconsolidated affiliates [Member] | Eagle Ford Pipeline LLC [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties 4.2 20.9 36.0
Unconsolidated affiliates [Member] | Management/Operator Fees [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties $ (12.6) $ (10.1) $ (9.9)