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Capital Accounts, Noncontrolling Interests (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 27, 2024
Feb. 16, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Noncontrolling Interest          
Noncontrolling interests     $ 857 $ 1,086  
Net income attributable to noncontrolling interests     69 125 $ 125
Payments To Acquire Additional Interest In Subsidiaries As An Equity Transaction   $ 375 400 10 $ 0
Breviloba LLC [Member]          
Noncontrolling Interest          
Noncontrolling interests [1]     423 436  
Whitethorn Pipeline Company LLC [Member]          
Noncontrolling Interest          
Noncontrolling interests [2]     0 182  
Percentage of Equity Interests Acquired   20.00%      
Enterprise Navigator Ethylene Terminal LLC [Member]          
Noncontrolling Interest          
Noncontrolling interests [3]     245 166  
Other [Member]          
Noncontrolling Interest          
Noncontrolling interests [4]     $ 189 $ 302  
Enterprise EF78 LLC [Member]          
Noncontrolling Interest          
Percentage of Equity Interests Acquired   25.00%      
Panola Pipeline Company, LLC [Member]          
Noncontrolling Interest          
Percentage of Equity Interests Acquired 15.00%        
Payments To Acquire Additional Interest In Subsidiaries As An Equity Transaction $ 25        
Parent Company's Ownership Percentage of Subsidiary 70.00%        
Altus Midstream Processing LP [Member] | Breviloba LLC [Member]          
Noncontrolling Interest          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners     33.00%    
Western Gas Partners, LP [Member] | Whitethorn Pipeline Company LLC [Member]          
Noncontrolling Interest          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners       20.00%  
Navigator Ethylene Terminals LLC [Member] | Enterprise Navigator Ethylene Terminal LLC [Member]          
Noncontrolling Interest          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners     50.00%    
[1] An affiliate of Kinetik Holdings Inc. owns a noncontrolling 33% equity interest in Breviloba, which owns the Shin Oak NGL Pipeline.
[2] An affiliate of Western Midstream Partners, LP (“Western Midstream”) previously owned a noncontrolling 20% equity interest in Whitethorn, which owns the Midland-to-Sealy section of our Midland-to-ECHO 1 Pipeline. 
[3] Navigator Ethylene Terminals LLC owns a noncontrolling 50% equity interest in ENET, which owns our ethylene export terminal located at Morgan’s Point on the Houston Ship Channel.
[4] Primarily represents noncontrolling equity interests in NGL fractionation and pipeline businesses.