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Investments in Unconsolidated Entities - Equity Method Investments (Details)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2022
USD ($)
Pipeline
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Nov. 30, 2022
Sep. 30, 2022
Jul. 31, 2022
Jun. 30, 2022
Investments in Unconsolidated Entities                
Investments in unconsolidated entities $ 3,084 $ 2,820 $ 3,084 $ 3,805        
Gains/(losses) on investments in unconsolidated entities, net   28 346 2        
Capital contributions to equity method investees excluding capitalized interest   29 13 $ 82        
Amount by which investments in unconsolidated entities exceeded our share of the underlying equity in the net assets 204 $ 229 204          
Advantage Pipeline Holdings LLC                
Investments in Unconsolidated Entities                
Additional interest acquired (as a percent)             50.00%  
Cactus II Pipeline LLC                
Investments in Unconsolidated Entities                
Additional interest acquired (as a percent)         5.00%      
BridgeTex Pipeline Company, LLC (“BridgeTex”)                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   20.00%            
Investments in unconsolidated entities 403 $ 363 403          
Capline Pipeline Company LLC (“Capline”)                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   54.00%            
Investments in unconsolidated entities 539 $ 535 539          
Diamond Pipeline LLC                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   50.00%            
Investments in unconsolidated entities 460 $ 450 460          
Eagle Ford Pipeline LLC                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   50.00%            
Investments in unconsolidated entities 371 $ 370 371          
Eagle Ford Terminals Corpus Christi LLC                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   50.00%            
Investments in unconsolidated entities 118 $ 116 118          
OMOG JV LLC (“OMOG”)                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)           40.00%    
Investments in unconsolidated entities $ 211   $ 211          
OMOG JV LLC (“OMOG”) | Acquisition of Additional Interest in Exchange for Contribution of Pipeline Assets                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent) 57.00%   57.00%          
Number of pipelines or partial pipelines contributed | Pipeline 2              
Gains/(losses) on investments in unconsolidated entities, net $ (25)              
Saddlehorn Pipeline Company, LLC                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   30.00%            
Investments in unconsolidated entities 197 $ 192 $ 197          
White Cliffs Pipeline, LLC                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   36.00%            
Investments in unconsolidated entities 150 $ 138 150          
Wink to Webster Pipeline LLC (“W2W Pipeline”)                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)   16.00%            
Investments in unconsolidated entities 357 $ 380 357          
Other investments                
Investments in Unconsolidated Entities                
Investments in unconsolidated entities $ 278 $ 276 $ 278          
Advantage Pipeline Holdings LLC                
Investments in Unconsolidated Entities                
Ownership interest in unconsolidated entity (as a percent)               50.00%