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Equity and Distributions, Issuances of Equity (Details)
$ / shares in Units, $ in Millions
 3 Months Ended
Mar. 05, 2020
USD ($)
$ / shares
Mar. 31, 2020
USD ($)
Contract
$ / shares
shares
Mar. 31, 2019
USD ($)
shares
Dec. 31, 2019
USD ($)
Liquidity Option Agreement [Abstract]        
Liquidity Option liability $ 511.9      
Deferred tax liability   $ 431.2   $ 103.5
Common units issued in connection with settlement of Liquidity Option 1,300.0 $ 1,297.3    
Number of registration statements following exercise of Liquidity Option | Contract   5    
Treasury Units:        
Common units acquired in connection with buyback program   $ 140.1 $ 51.6  
Oiltanking Holding Americas, Inc. [Member]        
Liquidity Option Agreement [Abstract]        
Deferred tax liability $ 439.7 $ 324.7    
Enterprise Products Partners L.P. [Member]        
Liquidity Option Agreement [Abstract]        
Closing price (in dollars per unit) | $ / shares $ 23.67 $ 14.30    
Long-Term Incentive Plan (2008) [Member]        
Net Cash Proceeds from Sale of Common Units [Abstract]        
Common units issued in connection with the vesting of phantom unit awards, net (in units) | shares   2,912,214    
2019 Buyback Program [Member]        
Treasury Units:        
Amount authorized under 2019 Buyback Program   $ 2,000.0    
Remaining available capacity under the 2019 Buyback Program   $ 1,780.0    
Total of common units repurchased under a buyback program (in units) | shares   6,357,739 1,852,392  
Common units acquired in connection with buyback program   $ 140.1 $ 51.6  
Universal Shelf Registration [Member] | Senior Notes [Member]        
Registration Statements and Equity Offerings [Line Items]        
Debt issued under universal shelf registration   3,000.0    
At-the-Market Registration [Member]        
Registration Statements and Equity Offerings [Line Items]        
Maximum common units authorized for issuance   2,540.0    
Remaining units available for issuance   2,540.0    
Employee Unit Purchase Plan [Member]        
Net Cash Proceeds from Sale of Common Units [Abstract]        
Employer contribution to EUPP   $ 0.5    
Distribution Reinvestment and Employee Unit Purchase Plans [Member]        
Net Cash Proceeds from Sale of Common Units [Abstract]        
Number of common units purchased on the open market and delivered to participants (in units) | shares   1,422,063