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Related Party Transactions (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Revenues - related parties:      
Total revenue - related parties $ 16 $ 14  
Costs and expenses - related parties:      
Operating costs and expenses 315 324  
General and administrative expenses 37 35  
Total costs and expenses - related parties 352 359  
Accounts receivable - related parties:      
Total accounts receivable - related parties 23   $ 21
Accounts payable - related parties:      
Total accounts payable - related parties 62   167
EPCO and its privately held affiliates [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties 291 292  
Accounts receivable - related parties:      
Total accounts receivable - related parties 1   1
Accounts payable - related parties:      
Total accounts payable - related parties 42   151
Distributions:      
Total cash distributions 316 306  
EPCO and its privately held affiliates [Member] | Administrative Services Agreement [Member]      
Costs and expenses - related parties:      
Operating costs and expenses 251 255  
General and administrative expenses 36 33  
Total costs and expenses - related parties 287 288  
EPCO and its privately held affiliates [Member] | Related Party Operating Leases [Member]      
Costs and expenses - related parties:      
Total costs and expenses - related parties $ 3 3  
EPCO and its privately held affiliates [Member] | Common Units [Member]      
Relationship with Affiliates [Abstract]      
Total Number of Units (in units) 702,377,022    
Percentage of total units outstanding 32.20%    
Enterprise common units pledged as security (in units) 92,976,464    
Unconsolidated affiliates [Member]      
Revenues - related parties:      
Total revenue - related parties $ 16 14  
Costs and expenses - related parties:      
Total costs and expenses - related parties 61 $ 67  
Accounts receivable - related parties:      
Total accounts receivable - related parties 22   20
Accounts payable - related parties:      
Total accounts payable - related parties $ 20   $ 16