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Goodwill (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Goodwill [Line Items]    
Goodwill $ 473 $ 473
Operating segments | Pipeline    
Goodwill [Line Items]    
Goodwill 53 53
Operating segments | Gathering    
Goodwill [Line Items]    
Goodwill $ 420 $ 420