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Investments - Equity investments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Mar. 08, 2021
Schedule of Equity Method Investments [Line Items]        
Equity Investments $ 7,874 $ 7,653    
Earnings (Loss) from Equity Investments 838 803 $ 591  
Amortization of excess cost of equity investments $ (66) (75) (78)  
Related Party | NGPL Holdings, LLC        
Schedule of Equity Method Investments [Line Items]        
Interest rate, stated percentage 6.75%      
Note receivable $ 375 375   $ 500
ArcLight | Related Party | NGPL Holdings, LLC        
Schedule of Equity Method Investments [Line Items]        
Note receivable       $ 125
Earnings from equity investments | Related Party | NGPL Holdings, LLC        
Schedule of Equity Method Investments [Line Items]        
Interest income $ 25 25 27  
Citrus Corporation        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 1,789 1,781    
Earnings (Loss) from Equity Investments $ 143 145 151  
SNG        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 1,668 1,669    
Earnings (Loss) from Equity Investments $ 140 145 128  
PHP        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 27.74%      
Equity Investments $ 763 666    
Earnings (Loss) from Equity Investments $ 70 70 63  
NGPL Holdings, LLC        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 37.50%      
Equity Investments $ 623 610    
Earnings (Loss) from Equity Investments $ 121 111 94  
NGPL Holdings, LLC | ArcLight        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 37.50%     25.00%
NGPL Holdings, LLC | KMI        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 37.50%      
NGPL Holdings, LLC | Brookfield        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 25.00%      
Gulf Coast Express Pipeline LLC        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 34.00%      
Equity Investments $ 566 597    
Earnings (Loss) from Equity Investments $ 93 91 86  
Dos Caminos LLC        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 192 0    
Earnings (Loss) from Equity Investments $ 0 0 0  
Products (SE) Pipe Line Corporation        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 51.17%      
Equity Investments $ 369 348    
Earnings (Loss) from Equity Investments $ 65 51 48  
MEP        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 342 371    
Earnings (Loss) from Equity Investments $ 87 10 (17)  
Utopia Holding LLC        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 322 325    
Earnings (Loss) from Equity Investments $ 22 20 20  
Gulf LNG        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 275 311    
Earnings (Loss) from Equity Investments $ 25 24 22  
EagleHawk        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 25.00%      
Equity Investments $ 273 273    
Earnings (Loss) from Equity Investments $ 18 13 8  
Red Cedar Gathering Company        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 49.00%      
Equity Investments $ 155 155    
Earnings (Loss) from Equity Investments 15 17 10  
Watco Companies, LLC        
Schedule of Equity Method Investments [Line Items]        
Equity Investments 84 79    
Earnings (Loss) from Equity Investments $ 10 9 9  
Watco Companies, LLC | Preferred Class B        
Schedule of Equity Method Investments [Line Items]        
Shares owned 50,000      
Quarterly preferred distribution rate 3.00%      
Cortez Pipeline Company        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 52.98%      
Equity Investments $ 30 31    
Earnings (Loss) from Equity Investments $ 25 30 29  
Double Eagle Pipeline LLC        
Schedule of Equity Method Investments [Line Items]        
Ownership Interest 50.00%      
Equity Investments $ 14 90    
Earnings (Loss) from Equity Investments (42) 18 9  
Impairments of equity investments 67      
Ruby        
Schedule of Equity Method Investments [Line Items]        
Equity Investments 0 0    
Earnings (Loss) from Equity Investments 0 0 (116)  
Ruby | Notes Receivable        
Schedule of Equity Method Investments [Line Items]        
Impairments of equity investments     117  
All others        
Schedule of Equity Method Investments [Line Items]        
Equity Investments 409 347    
Earnings (Loss) from Equity Investments $ 46 $ 49 $ 47