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Capital Accounts, Noncontrolling Interests (Details) - USD ($)
$ in Millions
6 Months Ended
Mar. 27, 2024
Feb. 16, 2024
Jun. 30, 2024
Jun. 30, 2023
Noncontrolling Interest        
Payments To Acquire Additional Interest In Subsidiaries As An Equity Transaction   $ 375 $ 400 $ 10
Whitehorn Pipeline Company LLC [Member]        
Noncontrolling Interest        
Percentage of Equity Interests Acquired   20.00%    
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%