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Acquisitions - Boardwalk Pipelines (Details)
$ in Millions
Sep. 29, 2023
USD ($)
pipeline
Sep. 30, 2023
USD ($)
Dec. 31, 2022
USD ($)
Business Acquisition [Line Items]      
Assets   $ 76,469 $ 75,567
Liabilities   61,311 60,366
Property, plant and equipment   $ 10,674 $ 10,027
Bayou Ethane      
Business Acquisition [Line Items]      
Number of pipelines | pipeline 2    
Boardwalk Pipelines      
Business Acquisition [Line Items]      
Assets $ 369    
Liabilities 21    
Property, plant and equipment 296    
Intangible assets recognized $ 34    
Boardwalk Pipelines | Bayou Ethane      
Business Acquisition [Line Items]      
Percentage of voting interests acquired 100.00%    
Payments to acquire businesses $ 348